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View Full Version : Better engine...a Straignt six or a V-6?


shanemb3 (USA)
Jul 14, 2003, 6:10 AM
I believe that with a longer crank shaft on the straight six you will/can have more crank bearings therefore a stronger motor than with a V-6. So I pick the Straight six. How about You?

jimkk29
Jul 14, 2003, 10:49 AM
I also pick the straight-six. More torque, more hp, better sound, higher revs, more smooth. Check out the str-6 of the M3 and you'll know what I mean. :wink:

NiGiz
Jul 14, 2003, 1:08 PM
Same here..I'd go with the R6. Take a look at Bimmer's engines..

anth the man
Jul 14, 2003, 4:43 PM
4 sure straight 6, the reason the m3 is amazing.

McLaren F1 LM
Jul 14, 2003, 5:31 PM
What’s strainth 6? never heard about it :lol:

Thanks

jimkk29
Jul 14, 2003, 6:24 PM
You have a straight six when the 6 cylinders are placed in a row, the one next to the other.
You have a V6 if the cylinders are placed in a V shape, the 3 facing the other 3. V6 engines usually are characterised by an angle, like 60 degrees.

FR500
Jul 15, 2003, 1:44 AM
I also pick the straight-six. More torque, more hp, better sound, higher revs, more smooth. Check out the str-6 of the M3 and you'll know what I mean. :wink:

More torque - False
More HP - Sometimes
Better Sound - False (Matter of taste)
Higher Revs - Damn True
More Smooth - True

Anyway, V engines are better for torque, having separate banks, and intake manifolds??(not sure about the term) makes the fuel mix better at low revs because more air is entering, at higher revs the advantage dissappears, therefore producing more torque, as you should know HP is a function of torque and rpm, the inline engines can rev higher, i think because of the more compact construction, there fore the smoothness, so the horsepower figures could be equal even though the curves would be a hell lot different.

The separate banks, make the V engine sound better for me, it has more bass, and V engines usually have more Grunt, more torque at low and medium hp range

If you compare, the engine, not the car, you can take the V6 Duratec from the Mondeo/Mazda 6 (ST220), and the 330 L6 engine, you see they have almost equal horsepower figures (Ford's loss is higher due drivetraing limitations), and in the low range the Duratec feels stronger but the L6 revs higher, at least without loosing smothness, they redline at the same place

So it's a matter of opinion

McLaren F1 LM
Jul 15, 2003, 3:16 AM
You have a straight six when the 6 cylinders are placed in a row, the one next to the other.
You have a V6 if the cylinders are placed in a V shape, the 3 facing the other 3. V6 engines usually are characterised by an angle, like 60 degrees.

Thanks Jim :D

jimkk29
Jul 15, 2003, 7:40 PM
I also pick the straight-six. More torque, more hp, better sound, higher revs, more smooth. Check out the str-6 of the M3 and you'll know what I mean. :wink:

More torque - False
More HP - Sometimes
Better Sound - False (Matter of taste)
Higher Revs - Damn True
More Smooth - True

Anyway, V engines are better for torque, having separate banks, and intake manifolds??(not sure about the term) makes the fuel mix better at low revs because more air is entering, at higher revs the advantage dissappears, therefore producing more torque, as you should know HP is a function of torque and rpm, the inline engines can rev higher, i think because of the more compact construction, there fore the smoothness, so the horsepower figures could be equal even though the curves would be a hell lot different.

The separate banks, make the V engine sound better for me, it has more bass, and V engines usually have more Grunt, more torque at low and medium hp range

If you compare, the engine, not the car, you can take the V6 Duratec from the Mondeo/Mazda 6 (ST220), and the 330 L6 engine, you see they have almost equal horsepower figures (Ford's loss is higher due drivetraing limitations), and in the low range the Duratec feels stronger but the L6 revs higher, at least without loosing smothness, they redline at the same place

So it's a matter of opinion
Man, if you can find me a 3.2lt V6 with 343 PS NA, let me know...

FR500
Jul 16, 2003, 12:40 AM
Man, if you can find me a 3.2lt V6 with 343 PS NA, let me know...

So you are not comparing V engines with R engines, you are comparing Bimmers R6 with the rest of V engines, believe me, al it takes to get horsepower is compresion, all you need to get compression is money, appart from luxury and perceived uality thats why M3 is a little expensive compared to vehicles with same or more power but higher displacement, i can't think about an engine with the exact features but i'm sure the VQ engine can beat that number, face it if you break the M3 engine you'll need to invest at least $11.000 in the engine, and there is little cheap modding available for the engine.
btw the M3 makes only 333hp at this side

RiceBoy
Jul 16, 2003, 3:04 AM
Wait, what's the 330 L6 :?: :?: :?:

jimkk29
Jul 16, 2003, 8:07 AM
:arrow: FR500:
1. If you want quality, you need to invest money to get. Besides, I was not only talking about the M3 engine. It is generally accepted that the R6 is better in terms of smoothness and efficiency. Trust me, it's written in many techical documents and books. Ask anyone who knows and you'll see.
2. Here the M3 makes 343 HP.

Raith83
Jul 16, 2003, 11:26 AM
How many cars have a straight six engine? Not that many. Mostly older ones as far as I know. My freind had an older Chevy Nova with a S6. A V6 takes up less space, right? Okay, good choice for a smaller car than can't fit a larger eninge. I find the S6 to be much more exciting merely in it's design and romanticism(I know thats very stupid). It's a rare breed(at least in the States) and is still brutally powerful, so you can still compete with most factory vehicles, whatever the application. If I had a Supra, lets say, and I had the option to drop a V6 in there, I'd kindly decline in favor of what was already revving underneath the hood. Wouldn't a straight six give a car better balance too? I wouldn't know where to look for that information, so I'll leave it up to an educated guess on my part concerning physics and the like.

FR500
Jul 17, 2003, 12:54 AM
:arrow: FR500:
1. If you want quality, you need to invest money to get. Besides, I was not only talking about the M3 engine. It is generally accepted that the R6 is better in terms of smoothness and efficiency. Trust me, it's written in many techical documents and books. Ask anyone who knows and you'll see.
2. Here the M3 makes 343 HP.

Smoothness yes, but the amount of power generated mostly depends on the quality of the fuel-air mixture, mazda has a NA 2.3 litre R4 producing 238hp, just a concept, but how did they do that? easy, direct fuel injection, sure it's expensive, but the mixture is almost perfect, also, the M3 engine is great pure power(not that much torque), but the 330 engine is not that much, it's soft, and feels powerful, but 225 hp of a 3 litre engine is plain standard, agains Mazda has that much power from a V6, and i think the Laguna has a 3 litre 240 hp V6, the only reason of the M3 engine being the most powerful NA 6 cylinder engine is that noone has decided to do one.

shanemb3 (USA)
Jul 17, 2003, 6:40 AM
I just think that this is an important topic. Everyone is giving good input. I was wondering b/c everyone knows how potent a Supra is. So why did Nissan put a V-6 in its 350Z? It requires the use of Twin Turbos because of two separate cylinder banks. I guess you could put a single turbo on it but it would require a huge intake plenum and probably wont fit under the hood. Plus, there is two separate exhausts to cope with. Either place one turbo per exhaust side or combine the exhaust into on pipe. But still, one turbo wouldnt work b/c of where it mounts on the manifold. One side would get all the back pressure. Maybe a Supercharger like Stillen put on it would be the way to go. (I guess I just realized another reason to use a supercharger...dual cylinder/exhuast banks) I dont see the Z getting truely mean until new lower compression pistons are dropped in it. Then we could put some good boost on it. This is what I feel will make or break the Z in my opinion. I could end up being much more costly to force induct. One would already have to put pistons in it. I dont like the idea of having a raised hood because of having a blower mounted on top of the engine.
Its just seems to me that besides space consideration (its only a six cylinder anyway) I dont see any reason to use a V-6 engine. Did Nissan even think of aftermarket?

jimkk29
Jul 17, 2003, 11:20 AM
:arrow: FR500:
1. If you want quality, you need to invest money to get. Besides, I was not only talking about the M3 engine. It is generally accepted that the R6 is better in terms of smoothness and efficiency. Trust me, it's written in many techical documents and books. Ask anyone who knows and you'll see.
2. Here the M3 makes 343 HP.

Smoothness yes, but the amount of power generated mostly depends on the quality of the fuel-air mixture, mazda has a NA 2.3 litre R4 producing 238hp, just a concept, but how did they do that? easy, direct fuel injection, sure it's expensive, but the mixture is almost perfect, also, the M3 engine is great pure power(not that much torque), but the 330 engine is not that much, it's soft, and feels powerful, but 225 hp of a 3 litre engine is plain standard, agains Mazda has that much power from a V6, and i think the Laguna has a 3 litre 240 hp V6, the only reason of the M3 engine being the most powerful NA 6 cylinder engine is that noone has decided to do one.
I know that noone has decided to do one. I just thought I should support my opinion that R6 is better with a specific example. The main reason why manufacturers are mostly creating V6 engines is to reduce space and cost. Otherwise they would go with the R6 (R6 needs a big hood). This is a reason why R6 is more expensive, and the companys' engineers know it's better. Don't you trust BMW's engineers?

I'm translating from a greek technical book: "...in theory, concerning the smoothness (regularity?) of the engine's operation, the best engines are the R6 for medium displacements and V12 for even larger displacements..."

So you don't want your engine to be smooth? For me, it's of utmost importance.

FR500
Jul 17, 2003, 2:28 PM
I know that noone has decided to do one. I just thought I should support my opinion that R6 is better with a specific example. The main reason why manufacturers are mostly creating V6 engines is to reduce space and cost. Otherwise they would go with the R6 (R6 needs a big hood). This is a reason why R6 is more expensive, and the companys' engineers know it's better. Don't you trust BMW's engineers?

I'm translating from a greek technical book: "...in theory, concerning the smoothness (regularity?) of the engine's operation, the best engines are the R6 for medium displacements and V12 for even larger displacements..."

So you don't want your engine to be smooth? For me, it's of utmost importance.

I study mechanicals too, and yes, the engines are smoother, and better balanced, but the pontential is just the same, there is no reason for a V6 to be worse than inline 6 and viceversa.

The separate intake manifolds and exhaust help a lot with torque, at least in the lower rpm range, i don't want to attack bimmers but they are not the best engines as for torque, not even the M5, the old E55 NA amg has better and more useable torque for example, and in my personal oppinion, torque is the most important, horsepower is just a function of torque and engine RPM, that's the reason inline engines being high rewing engines, at low rpm they are not that strong, but at high rpm, no matter the torque they get power

just think that this is an important topic. Everyone is giving good input. I was wondering b/c everyone knows how potent a Supra is. So why did Nissan put a V-6 in its 350Z? It requires the use of Twin Turbos because of two separate cylinder banks. I guess you could put a single turbo on it but it would require a huge intake plenum and probably wont fit under the hood. Plus, there is two separate exhausts to cope with. Either place one turbo per exhaust side or combine the exhaust into on pipe. But still, one turbo wouldnt work b/c of where it mounts on the manifold. One side would get all the back pressure. Maybe a Supercharger like Stillen put on it would be the way to go. (I guess I just realized another reason to use a supercharger...dual cylinder/exhuast banks) I dont see the Z getting truely mean until new lower compression pistons are dropped in it. Then we could put some good boost on it. This is what I feel will make or break the Z in my opinion. I could end up being much more costly to force induct. One would already have to put pistons in it. I dont like the idea of having a raised hood because of having a blower mounted on top of the engine.
Its just seems to me that besides space consideration (its only a six cylinder anyway) I dont see any reason to use a V-6 engine. Did Nissan even think of aftermarket?

Aftermarket is already producing kits for the Z, it's not that complicate to setup turbos an V engines, and if you think so, installing turbos in bimmers could be very baaaaad, too much damn compression in there already

jimkk29
Jul 17, 2003, 4:27 PM
I might agree with you, but, for the reasons I explained earlier, the R6 is my choice.

sTeViE26
Jul 17, 2003, 10:16 PM
This is my first post, so sorry in advance if I screwed something up...

Anyways, everyone is debating which is a better design for six cylinder engines - inline or vee... and I'm suprised nobody has mentioned the ideal design for any internal combustion piston engine - horizontally opposed ("flat"/"boxer"). In terms of performance, an inline six is theoretically superior in performance than a vee six because it generates less vibration, and therefore allows higher revs and more power. Additionally, since an inline six has only one cylinder bank, and one cylinder head, it has less rotating mass (ie. camshafts, cam gears, etc.)... for example a DOHC I-6 has two long camshafts, while a DOHC V-6 has four shorter camshafts (more moving parts, more rotating mass, more friction). Now, while horizontally opposed engines also have two cylinder banks (and therefore two cylinder heads, and twice as many camshafts as an inline equivalent), they more than make up for this disadvantage in the fact that they are naturally balanced. In this I mean that because the movement of each piston is counteracted by the piston opposite it, there is no need for counterweights on the crankshaft of a horizontally opposed engine. Because of this natural balance and the lightweight crankshaft, horizontally opposed engines can rev higher and create more power than inline or vee style engines. As already discussed, V-6's are more commonplace than I-6's in cars today because of packaging issues (ie. inline engines warrant long hoods and are not generally practical for transverse mounting like in front wheel drive cars), however, this is not true for horizontally opposed engines. "Boxer" engines can be placed in any position to fit certain needs - front (all current Subaru's), mid (Porsche Boxster) and rear (Porsche 911). Horizontally opposed engines also have a low center of gravity and are an ideal layout for a symetrical (also smooth and simple) AWD setup (ie. Porsche and Subaru). I can tell you one thing, if I were in charge of a car company, they'd be making "boxers" and only "boxers." Common' Ferrari, bring back the BB... Anyways, thanks for paying attention to all of that rambling I just did... not bad for an 18 year old though, eh? (Canadian)

sTeViE26
Jul 17, 2003, 10:36 PM
Me again...

One more thing, everyone's been discussing the power and torque curve characteristics of I-6's and V-6's... it's bogus! Just because I-6's can theoretically rev higher dosen't mean they're going to be higher revving than their V-6 counterparts and have no low end torque. Power curves are a result of things like bore/stroke ratios, connecting rod/stroke ratios, valve timing and lift, intake/exhaust geometry, etc.
I know some people were comparing specific engines, but others were generalizing... and all things being equal an I-6 will be smoother, more efficient, lighter, more powerful and torquier than a V-6 (throughout the rev range), albeit in a less than ideal shape (V-6's have the advantages of being more compact and having a lower center of gravity...
although I-6's are usually canted to one side or another which addresses the center of gravity and height issues). Sorry if I sound like a dick, just wanted to clarify...

Raith83
Jul 17, 2003, 11:07 PM
hey man, no need to aploligize, no mecry on this forum! Hehe, i kid. You're totally cool by me so far. If you happen to read some of the very stupid and hateful entries that some guests leave, you'll see how inline you are(no pun intended :wink: ). You sound very knowledgeable in the specific engine works, which is more than I can say for myself. I appreciate your input greatly, giving factual, ahm, facts. Rock on :mrgreen:

FR500
Jul 18, 2003, 12:50 AM
Me again...

One more thing, everyone's been discussing the power and torque curve characteristics of I-6's and V-6's... it's bogus! Just because I-6's can theoretically rev higher dosen't mean they're going to be higher revving than their V-6 counterparts and have no low end torque. Power curves are a result of things like bore/stroke ratios, connecting rod/stroke ratios, valve timing and lift, intake/exhaust geometry, etc.
I know some people were comparing specific engines, but others were generalizing... and all things being equal an I-6 will be smoother, more efficient, lighter, more powerful and torquier than a V-6 (throughout the rev range), albeit in a less than ideal shape (V-6's have the advantages of being more compact and having a lower center of gravity...
although I-6's are usually canted to one side or another which addresses the center of gravity and height issues). Sorry if I sound like a dick, just wanted to clarify...

I think you are right, but most theorical parts there have been put to practise, and as far as i see, nowadyas, i dont see any l-6 with decent torque besides the M3, on the other hand, but not in the same category, the infiniti g35 FEELS stronger, even though it accelerates less, why, because of more useable torque through the powerband, im not saying you are wrong, but in the practise, i don't see any l6 enigne with enough grunt

Anyway, there is alwasy a V8 out there to fullfill your torque needs :twisted: :twisted:

RiceBoy
Jul 18, 2003, 1:22 AM
LOL :D :D :D

shanemb3 (USA)
Jul 18, 2003, 5:26 AM
No one has answered one of the questions I had. Do the I-6 have more crank bearings than the v-6? I know that there are cases where ( I believe a supra) the I-6 has 7 main bearings and a V-6 has 5. Makes sense since we are working with a longer crankshaft. More bearings means a stronger motor.

As for boxer engines, I dont see any that are any good except the Subaru motor. Didnt a Ford Fairlane also have one? I imagine a boxer engine would be a pain in the ass to work on though. I dont have much experience with boxers.

Someone needs to consult a pro on this one.

White-Night
Jul 18, 2003, 7:34 AM
i will ask for you ...
the answer will be tomorrow ...

jimkk29
Jul 18, 2003, 7:48 AM
sTeViE26, you don't need to apologize man... You've written some of the most sane posts I've ever read, and I agree 100% with you! :D

FR500
Jul 19, 2003, 12:46 AM
No one has answered one of the questions I had. Do the I-6 have more crank bearings than the v-6? I know that there are cases where ( I believe a supra) the I-6 has 7 main bearings and a V-6 has 5. Makes sense since we are working with a longer crankshaft. More bearings means a stronger motor.

As for boxer engines, I dont see any that are any good except the Subaru motor. Didnt a Ford Fairlane also have one? I imagine a boxer engine would be a pain in the ass to work on though. I dont have much experience with boxers.

Someone needs to consult a pro on this one.

Are you joking? what about the Porsche engines, as far as i know all the 911 series have had boxer engines, and the boxter has one too, the only actual V engines from porsche are the V10 in the Carrera GT and V8 from the Cayenne

RiceBoy
Jul 19, 2003, 2:05 AM
Everything else it 'flat' :D

White-Night
Jul 21, 2003, 6:07 PM
Straight is better...
explenations will be soon .. im tring to translate it .. but it F*cken hard !

shanemb3 (USA)
Jul 21, 2003, 10:23 PM
Are you joking? what about the Porsche engines, as far as i know all the 911 series have had boxer engines, and the boxter has one too, the only actual V engines from porsche are the V10 in the Carrera GT and V8 from the Cayenne

Oh. :idea:

RiceBoy
Jul 21, 2003, 10:50 PM
Take your time........

White-Night
Jul 22, 2003, 7:02 AM
fitst i will tell you that each word i dont really know how its called in english will be in " " .
and also the words i dont really know how they are written but i know how they are spoken ( just read it ) :)

ok here it comes ....
I6 engines are better , couse it have a "hermonic"ly natural .. so it don't need a balanceing wave .. also they V6 engines with 60 degree "angle" are almost naturally hermonic and dont need the balancing wave ..
the I6 engine is taller than the V6 .. an I4 lenght is the same as a V6 ...thats why its used in "straight" (like from up to down in the car ) installations which means better for RWD cars as BMW

the V6 engine needs two engine headers which means a double number of "zegzeem" waves if its in a OHC engine . you dont have this problem in most american V6 engines with are pushrod engines ( with one camshaft in the middle )

the V6 is more expensive for production and have many parts...
while the staigh I6's parts can be used in most straigh engines as I6 I4 and I8 engines.

the power of the engine isn't mesured and based on if its a V6 or an I6 engine input and output of the enige .. the injection system ... the materials which are used to produce the engine ..how manly valves does each cylender have ... and other stuff which are hard for me to translate :)

its good to mention that the VR6 have a V6 engine with a 15 degree angle in the engine and the cylenders almost "touch" each other . the main thing in this engine that its small as most V6 engines , but with one engine "block" which means less weight and parts than ordinary V6 engines .

all Boxter engines are installed straight .. as the subaru B4 ...

the I6 have a problem with the 6th cylender's heating ... the 6th cylender is far away from the cooling system so it gets over heated alot ..

staight V6 engines have problems with balancing the "arocba" wave ...

..... now after i read it again it seems hard to understand ...
better translations and explenatins will be on in 30 min ...i have to call some guys :)

White-Night
Jul 22, 2003, 7:15 AM
ok here are the explenations i got ..
first to the waves...
the ARCOVA wave is called cranshaft it is connected to the valves someway i cant explain ... the cranshaft "engages" (makes it work ) the one ZEGZEE wave which is the Camshaft ..by chains reaction ..the ZEGZEE waves engages in non hermonic engines the BALANCING WAVE which called in english balanceshaft ...
more specific explenation about the camshafts cranshafts and balaceshaft ......i will have to translate after lunch ...

God its like a second job for me this translation !! :evil:

Impreza007
Jul 22, 2003, 9:03 PM
:twisted: From the two, I like the best V6 engines!!!.

:arrow: :roll: But who wants that!!!!! What better than a Boxer Engine!!!!

:arrow: :wink: Impreza007

shanemb3 (USA)
Jul 23, 2003, 12:01 AM
White night....you lost me bro. Try again when you can simplify it in lamens terms. Zegzee? Arcova? Im intrigued. Tell me more. But in English please :wink: :wink:

White-Night
Jul 23, 2003, 6:38 AM
i know ... im tring my best...
english is my 3rd language .. !! not even the second language!
so im having a hard time specially with technical words :oops:

anyways i see you didn't read the second post that good ... it explains Zegzee and Arcova ....
here you go i will make it easier ...

Arcova=cranshaft
Zegzee=camshaft
balancing wave=balanceshaft

personally i only knew the camshaft... but it seems Zegzee is something it does in hebrew ...
anyways .. i will explain more today

FR500
Jul 23, 2003, 3:39 PM
fitst i will tell you that each word i dont really know how its called in english will be in " " .
and also the words i dont really know how they are written but i know how they are spoken ( just read it ) :)

ok here it comes ....
I6 engines are better , couse it have a "hermonic"ly natural .. so it don't need a balanceing wave .. also they V6 engines with 60 degree "angle" are almost naturally hermonic and dont need the balancing wave ..
the I6 engine is taller than the V6 .. an I4 lenght is the same as a V6 ...thats why its used in "straight" (like from up to down in the car ) installations which means better for RWD cars as BMW

the V6 engine needs two engine headers which means a double number of "zegzeem" waves if its in a OHC engine . you dont have this problem in most american V6 engines with are pushrod engines ( with one camshaft in the middle )

the V6 is more expensive for production and have many parts...
while the staigh I6's parts can be used in most straigh engines as I6 I4 and I8 engines.

the power of the engine isn't mesured and based on if its a V6 or an I6 engine input and output of the enige .. the injection system ... the materials which are used to produce the engine ..how manly valves does each cylender have ... and other stuff which are hard for me to translate :)

its good to mention that the VR6 have a V6 engine with a 15 degree angle in the engine and the cylenders almost "touch" each other . the main thing in this engine that its small as most V6 engines , but with one engine "block" which means less weight and parts than ordinary V6 engines .

all Boxter engines are installed straight .. as the subaru B4 ...

the I6 have a problem with the 6th cylender's heating ... the 6th cylender is far away from the cooling system so it gets over heated alot ..

staight V6 engines have problems with balancing the "arocba" wave ...

..... now after i read it again it seems hard to understand ...
better translations and explenatins will be on in 30 min ...i have to call some guys :)

I guess you are right............anyways, i was reading the Marks Mechanical Manual or something alike at the library, and it says: Engines with the same displacement and features will perform and generate similar peak outputs with differing curves

White-Night
Jul 23, 2003, 6:35 PM
I guess you are right

was that you didn't understand or you think im right ? :)
this information is from the best mechanics in israel ... and a personal illegal tunner :) (most of the tunning is illegal in israel)

anyways here are some links he sent me for better explenations ...
sorry i still didn't finish explenation about the "shafts" all of them but here are some ready link which explain better than i do i guess :wink:

Camshaft valves and engine types and everything around them :
http://auto.howstuffworks.com/camshaft.htm

How Engines Work :
http://auto.howstuffworks.com/engine.htm

White-Night
Jul 23, 2003, 6:40 PM
the how stuff works is great ....
i just found an answer to the specific question :

"Is there a difference between inline and V engine configurations?"
here is the answer with animations and pics :twisted:

http://auto.howstuffworks.com/question366.htm

it seems you can find anything you want in this site ... 8)

FR500
Jul 24, 2003, 12:49 AM
was that you didn't understand or you think im right ?


:D i dont fight for fighting, and you gave me the key to point out what i was trying to say

You can find, for example, inline 6 cylinder engines, flat 6 cylinder engines and V-6 engines. If you built all three of these six cylinder engines to the exact same specifications -- same displacement, same valves, same intake and exhaust systems, etc. -- they would likely perform nearly identically. Displacement is displacement.

See my point?

White-Night
Jul 24, 2003, 7:00 AM
yes i do see your point :)

but what is all the fighting thing ! :roll: :)

by the way the TVR and Volvo Use Straight line engines

spirax
Jul 24, 2003, 1:52 PM
straight six gives most power (m3), flat six or boxer six (911 carrera) gives lower center of gravity so it gives more control - V6 is something in between these two - it's a compromise - so i would choose straight six, as i'm a power/torque freak))

FR500
Jul 25, 2003, 2:12 AM
straight six gives most power (m3), flat six or boxer six (911 carrera) gives lower center of gravity so it gives more control - V6 is something in between these two - it's a compromise - so i would choose straight six, as i'm a power/torque freak))

You are generalizing an especific example, and as for torque, the M3 engine is not that great

by the way the TVR and Volvo Use Straight line engines :)

I know, and i think it's time for the thread to die, i would just say, too each it's own, i like V6 because of tehir grunt, and for me, the VQ sounds nicer than the S54 (M3 Engine), but as for especific output, i think the S54 is the best inline engine ever

spirax
Jul 25, 2003, 10:20 AM
no, if u take all the inline cars and the v's and boxers u'll see that most of the performance ones have a straight six engine - supra, m3, evo's, celicas etc

subarus don't give much power - naturaly aspirated 2.5 litre boxer four gives out only 150 hp, or the turbo 2.0 litre on the impreza - it has less than the evo, but it gives the lower centre of gravity, that's why they're good in WRC

same with porsche - 3.6 litre boxer six has less than m3's inline 3.2 litre engine, see?

FR500
Jul 25, 2003, 11:46 PM
no, if u take all the inline cars and the v's and boxers u'll see that most of the performance ones have a straight six engine - supra, m3, evo's, celicas etc

subarus don't give much power - naturaly aspirated 2.5 litre boxer four gives out only 150 hp, or the turbo 2.0 litre on the impreza - it has less than the evo, but it gives the lower centre of gravity, that's why they're good in WRC

same with porsche - 3.6 litre boxer six has less than m3's inline 3.2 litre engine, see?

This are 6 cyl cars, and, as for the Carrera, the engine can produce 500hp NA, it's dont suited for streets, the same engine NA is making 385Hp in the GT3

Also, most real high performers, have V engines, usually V8, V10 or V12

All you need to get power is to raise compression, and to raise compression, you need to spend on higher grade reinfordced internals and such, no rocket science there, the rocket science is in the refinement and smoothness in power delivery, there is where Bimmer really shines

Raith83
Jul 26, 2003, 7:07 AM
Good lord. Is it just me, or are we beating a dead horse now?

spirax
Jul 26, 2003, 8:15 AM
ok, u win, but u don't need high compression to get more power, not always - in turbo cars u won't find (well probably)) compression higher than ten to one, to get more power u need more mixture in the cilinders at a time - u can achieve that not only by high compression but also by increasing engine capacity or using a turbo or getting the car to rev higher (i don't like hondas much, but the're a prime example)

i agree that most high performance cars use v engines but i suppose that's 'cause u need a lot of space to fit an inline 12! and gt3 gives the lot out 'cause it revs a lot too, check out m3 gtr or somethin'

FR500
Jul 27, 2003, 12:03 AM
ok, u win, but u don't need high compression to get more power, not always - in turbo cars u won't find (well probably)) compression higher than ten to one, to get more power u need more mixture in the cilinders at a time - u can achieve that not only by high compression but also by increasing engine capacity or using a turbo or getting the car to rev higher (i don't like hondas much, but the're a prime example)

i agree that most high performance cars use v engines but i suppose that's 'cause u need a lot of space to fit an inline 12! and gt3 gives the lot out 'cause it revs a lot too, check out m3 gtr or somethin'

AFAIK M3 Gtr has a V8, and who cares the GT3 revs higher, the power is there, we were comparing NA cars, as for turbo, it doesnt realy care, just slap in lower compression pistons and a turbo and voila.

Alfa Romeo 156 GTA
Jul 27, 2003, 12:58 AM
well.... ok.

You may take your inline engine's whahah

I'll get my Alfa V6 3.2 24Valve'sGTA engine , maybe not as fast as the M3 from bmw but Look at every tv program and everyone who drove the GTA They all fall in love with the sound of That Amazing GTA V6!

3.0 NA without turbo 343 hp?

i don't know or that's possible with a V engine i think it is!
2005 Alfa Romeo will come with a New 3.5L Engine V6 and must giva an awesome 350hp! This will be the new GTA engine for the 166!

greetz : Danny!

FR500
Jul 28, 2003, 1:14 AM
well.... ok.

You may take your inline engine's whahah

I'll get my Alfa V6 3.2 24Valve'sGTA engine , maybe not as fast as the M3 from bmw but Look at every tv program and everyone who drove the GTA They all fall in love with the sound of That Amazing GTA V6!

3.0 NA without turbo 343 hp?

i don't know or that's possible with a V engine i think it is!
2005 Alfa Romeo will come with a New 3.5L Engine V6 and must giva an awesome 350hp! This will be the new GTA engine for the 166!

greetz : Danny!

Isn't it gonna be named 168? i hope it gets RWD, the twin spark V6 sounds AWESOME, great engine, i remember when i tried to beat one of those in the Focus....... crap..........well, i might get it back in the Cosworth

jimkk29
Jul 28, 2003, 11:51 AM
There are some nice opinions here. Please go on people! :D

White-Night
Jul 28, 2003, 12:02 PM
i think we already squeezed all the juice from this one :)
but you are welcome to post your opinion 8)

jimkk29
Jul 28, 2003, 12:04 PM
I have already posted my opinion and I am waiting for others to do so. :D

White-Night
Jul 28, 2003, 12:09 PM
personally i can't say anything more in this topic..
i wrote alot and explained alot ...
did you check the site.. ??

jimkk29
Jul 28, 2003, 12:10 PM
Yes I did. The animations were very good and I saved them on my computer! Thnx! :D

skylineman
Jan 16, 2004, 1:58 PM
Well i hate to be a... well we wont go there but it depends on what kind of car that the engine is in. I have a friend that has a str8 6 and it sounds real clean, but I cant help but love the suond that a 6 cylinder engine makes i.e. 2jz-gtte engine in Japanese Toyota Supra.

Of course a str8 6 in the skyline is real mean to so i think they both are cool

F1356WRCRS
Jan 16, 2004, 4:40 PM
I think that straight and flat engines are the best, for six cylinders anyway. I can't come up with half as many V6s that are really good compared with inline and horizontally opposed six-cylinder engines. I have no idea what configuration is technically the best, as I don't really know too much about the mechanical aspects of cars.

agitatedcorn
Jan 16, 2004, 5:05 PM
I also prefer Straight sixes...

BluCamSS
Jan 16, 2004, 6:37 PM
A WELL TUNED V is always the best overall way to go, but most of the better 6s are inlines. Just happens to work out that way, I guess before they would make a sick V6 they say hey, lets make a V8 lol.

White-Night
Jan 16, 2004, 7:34 PM
A WELL TUNED V is always the best overall way to go, but most of the better 6s are inlines. Just happens to work out that way, I guess before they would make a sick V6 they say hey, lets make a V8 lol.

can you explain what you ment in that ?

if a straight 6 is better than a V6 , then a well tuned straigh 6 should be better than a well tunned V6 engine !

BluCamSS
Jan 17, 2004, 2:58 AM
A WELL TUNED V is always the best overall way to go, but most of the better 6s are inlines. Just happens to work out that way, I guess before they would make a sick V6 they say hey, lets make a V8 lol.

can you explain what you ment in that ?

if a straight 6 is better than a V6 , then a well tuned straigh 6 should be better than a well tunned V6 engine !

A I6 is NOT better then a V6.
Inline engines, espically 4 cylinders have balance and vibration issues.
Thats why soooo many I4, and I6 engines have to use balance shafts.

White-Night
Jan 17, 2004, 8:47 AM
:arrow: BluCamSS :arrow:

i hope you read my previous post when the thread was active while now its just beating a dead hourse .

anyway just read it and i will try to explain if you don't understand ( the second post explain some of the words in the second in this link )

the link is the second page in this thread , im asking you to read it ( couse i know you weren't around when the discussion started .



[/quote]

jimkk29
Jan 17, 2004, 10:01 AM
A I6 is NOT better then a V6.
Inline engines, espically 4 cylinders have balance and vibration issues.
Thats why soooo many I4, and I6 engines have to use balance shafts.
Um sorry to say this, but you are totally wrong on this one.
I4's do indeed use balance shafts, but I6 are probably the most balanced and smooth engines of them ALL.

Read the following VERY carefully:
http://www.e31.net/engines_e.html

Raith83
Jan 17, 2004, 12:41 PM
Yeah, I think I might ahve mentioned this before, but again: given the option of having the Supra and Skyline coming back and either an I-6, or V-6, the best choice is the I-6, for all the reasons listed aobve. thantks for that weblink jim, it was very informative.

BluCamSS
Jan 17, 2004, 1:29 PM
A I6 is NOT better then a V6.
Inline engines, espically 4 cylinders have balance and vibration issues.
Thats why soooo many I4, and I6 engines have to use balance shafts.
Um sorry to say this, but you are totally wrong on this one.
I4's do indeed use balance shafts, but I6 are probably the most balanced and smooth engines of them ALL.

Read the following VERY carefully:
http://www.e31.net/engines_e.html

Well I guess I did read into this to far, maybe for 6's a I is best, but for all other cylinder amounts a V is the best way, that I have read countless times.

My bad lol.

shanemb3 (USA)
Jan 17, 2004, 7:14 PM
The only reason I can see using a V setup is for space considerations only. And for a N/A motor it would work great. But for turbo...one exhaust manifold makes life much easier.

jimkk29
Jan 18, 2004, 11:27 AM
Well I guess I did read into this to far, maybe for 6's a I is best, but for all other cylinder amounts a V is the best way, that I have read countless times.

My bad lol.
Well yes, you can't have an inline 8/10/12 engine!!! LOL!!!!

BluCamSS
Jan 18, 2004, 2:00 PM
Well I guess I did read into this to far, maybe for 6's a I is best, but for all other cylinder amounts a V is the best way, that I have read countless times.

My bad lol.

Well yes, you can't have an inline 8/10/12 engine!!! LOL!!!!

Oh sure you can, there have been MANY. Once you get past 6 cylinders though you get balance issues. Plus I have read that a V design tends to be a little more reliable. Why I am not sure, but if you look around most 6's are a V. Even the I 6's are being phased out for V's. And it is not just because of space issues.

TheCivicProject
Jan 18, 2004, 2:07 PM
Any good car enthusiast knows that an inline is more ideal for racing, look at the Mitsubishi 3000gt VR4: inline 6 engine, and very upgradable; from what i hear you can hook up those bad boys to 1000+hp

BluCamSS
Jan 18, 2004, 2:12 PM
Any good car enthusiast knows that an inline is more ideal for racing, look at the Mitsubishi 3000gt VR4: inline 6 engine, and very upgradable; from what i hear you can hook up those bad boys to 1000+hp

Sorry to break it to you but thats false....
A V is used WAY, WAY more.

And in the BEST forms of racing....
Formula 1
NHRA Top Fuel
NASCAR
CART
IRL
ALMS
Grand Am
And many, many more!


The only forms of racing that use a I are the ones that have to like WRC.

TheCivicProject
Jan 18, 2004, 2:37 PM
hahah!! im glad you said that, because my friend is a pompous #$%#head and he always told me that I-6s are better for racing

jimkk29
Jan 18, 2004, 6:29 PM
Well I guess I did read into this to far, maybe for 6's a I is best, but for all other cylinder amounts a V is the best way, that I have read countless times.

My bad lol.

Well yes, you can't have an inline 8/10/12 engine!!! LOL!!!!

Oh sure you can, there have been MANY. Once you get past 6 cylinders though you get balance issues. Plus I have read that a V design tends to be a little more reliable. Why I am not sure, but if you look around most 6's are a V. Even the I 6's are being phased out for V's. And it is not just because of space issues.
Have you ever seen a functioning inline 8 or 10? Or 12? :?

BluCamSS
Jan 18, 2004, 6:46 PM
Have you ever seen a functioning inline 8?

Sure there were pleanty in the 20's, 30's and 40's....

jimkk29
Jan 19, 2004, 9:56 AM
LOL then your hood must be like 4 meters long. :lol: