6-cylinder engine

Okay, what layout do you prefer...I, V, or Flat (or Boxer, like in Porsche's). My favorite is the I, mostly because I love M3's. V6's always seem to fall into categories of base models (mustangs, camaros) or just "too small to be really fast, too big to be a civic".

Anyone else?

I like V's. Can't explain why!

V6 preferably with a couple of turbo chargers :D













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Enzo.... You forgot to mention the 246GTS Dino engine....

I vote for the horizontaly opposed layout (flat). Like that of porsche and subaru.

I also love the I-6 layout.

When I hear V-6, I think of an engine that is underpowered. They are too widely used in POS cars.

Exactly. I mean, base mustangs and Camaros, and even something like the Lotus M250 concept wasn't going to have that great of power output. Like I said, too small to have great amounts of power (but, there are exceptions).

i like the i or horiz. myself...
both lend to turbos very well...
supra... 300zx... porsches...
bmw engines...

even chevy has an i6 4.2l motor in the trailblazer... fucker makes 270 hp... thats more than alotta v8s in trucks... damn and stuff...

the only v6s i like are in audis...
vw's 15 degree vr6 w/ 180hp
the audi 2.8l v6 w/5v per cyl technology in the passat and the a4... 193hp

oh yeah... howzabout the s4.. 2.7l tt... 250hp... thats a nice v6...

if there is a strong v6, thassit...

Yeah not to mention the Nissan 6 cyl. used in the Maxima (222hp), the 300zx(300hp twin turbo mentionned above) and the Skyline (300hp).

I say it all depends how they're made.

What it comes down to is application. The one that is easier to modify wins the votes. It's kinda hard to say just because of those cars, that those are the best types. Let's not forget a lot of the supercars are v's, and produce a lot of horsepower. So I guess we should be saying what our preference is and not that this type produces more.

yes, it depends upon the application as to what will work best. A V6 makes sense for the Acura NSX, the I6's work fine in long nosed BMW cars, and the flat sixes work fine for Porsche and Subaru. Unquestionably, the flat is the hardest to fit into an average engine bay, but has obvious benefits in intake manifold design and installed height. The inline posesses balance equal to that of the flat (no second order resonance, easy to balance out primary resonance), has a perfect exhaust layout for turbocharging, and gives plenty of space for complex suspension systems like double wishbones. Come to think of it, it's a shame BMW doesn't use double wishbones up front when they clearly have the space to spare. V6's are the most compact overall, especially considering a V6 acheives optimal balance at a 60 degree bank, which keeps them narrower than otherwise identical V8's. They are the easiest to package in tight confines (like that of mid engined chassis), and can be extremely powerful with the right engineers and tuners working on them.

Overall, there is definitely no "best", but if I have the choice, make mine an inline. They are the easiest to work on IMO, and posess the perfect balance necessary for very high RPM running. Their biggest drawback IMO is the very long crankshaft, which does make it harder to keep in one peice under tons of power.

I was pondering the other day about an I-8 engine. Does anyone know if this has been done or can be done? I know it would be way long and those would be some long ass cam shafts (and crank shaft).

It would either have to fit into a long nose or long mid section.

I was also thinking about a Flat 8. Anyone know if that's been done?

thx

both have been done in the distant past, and both (space willing) do have the perfect natural balance so hard to acheive in modern engine design. The I8 has the obvious problems you mentioned and is probably not a feasible design for modern, high RPM engine dynamics. The flat 8 is still very much a possibility though, I wouldn't rule out the use of this design in some future automotive application (perhaps a super Subaru?). If Ferrari could have a powerful flat 12 in cars less than a decade ago, there's no reason to think someone couldn't come out with a great flat 8.

Didn't Bugatti, or one of those super-luxo companies during the 50's and 60's have an I-16 or something? I seem to remember seeing one on my C&D day by day calendar.

enzo- A few ancient attempts at the I16 have been made, but none were that successful. Chalk them up to the excess of design, where the reality of function dictates motors today. An I16 is so ridiculously long, and has such heavy rotational mass in the simple attempt to balance it, that it could not spin anywhere near to even the 6000 RPM redlines common in virtually all gasoline engines today. And believe it or not, RPM = functionality, all other things being equal. That's why the redlines of modern motors keep creeping upwards, and why the turbine engine still stands as the reigning speed/efficiency king of ICEs. It's doubtful there will ever be an atempt at an automobile engine in excess of 6 cylinders per bank again, it just doesn't make sense nowadays.

Tis a shame. Bring back the old days.

I'm not a just another V6 guy, I like orignal designs and such, that's why the I and Flat-6 are my choices. BMW has done majic with their 6's and any Porsche is a great example of Flat engine technology. (Excluding the 928 and few others) As for the Flat-8, I think Porsche may have done it with a Le Mans-type racer in the 70's not sure though. What does the 904 have? I want the 917-30's 5.4L Flat-12. 1160HP!!

They are all great IMHO. Most 6 cylinder engines can be tuned very high.

if you have seen the speedvision show on porsche racing history, it should be noted that porsche had flat tens w/ turbos on em that were pushin out over 1k hp...
flat tens! that is crazy....

I too prefer the inline. If nothing else, I love the sounds they make. BMW inline sixes have enchanted me for a long time, just because of the way they sound when revved. I find it sad that so few manufacturers choose to work with them, although it is understandable, given contemporary packaging constraints. Even in the M3, the engine is tilted slightly to one side to fit in the engine bay, with the engine's relatively long stroke.

I saw that thing on Porsche on SPDVSN. Was it the one with the guy at the castle driving almost every Porsche ever made? That's the one I saw, he was racing in old 1974 Carrera RSR's and 356 and so on. The guy was a good driver and he was taking a 962 Street Version on some backroads at like 150 km/h.

that is the one...
his name is alain de cadanet
he used to race porsche and ferrari shit back in the mid70s to 80s...
he is awesome...
he also did the show where he was racing around in ferraris... including the 333sp... damn...

Saw that one too. He had the race models and that sweet 365 GTB/4 Daytona.

When it comes to modding the I is definately easier to work with, and its dependatbility is great. I remember I asked one idiot what motor his car had and he said "V4"... the average non-automotive informed person assumes every engine type has a "V" before it.

I did that once for a Very Short while a few years back. Is there actually such thing as a V4 or are there just Flat and I-4's? I know it sounds like a dumb question but I want to know now so I don't sound like a total dumbass later.

There was a small, exotic sports car made in Spain (perhaps back in the '70s) that used a V4 engine. It might have been called a Toro or something (if you can find a Motor Trend database, I'm pretty sure you'll be able to find out more about it through them). Not very common, and almost silly to put four cylinders into the V configuration, as this is generally done to save space. Most four cylinder engines are small enough in inline layout that it's just not necessary to split the cylinder banks.

Ford made a very unpopular V4 engine for the MK II capri in the UK, it was ment to be all flash and modern, and compact, and well balanced, but it turend out to be an unreliable dog. After only one year of production it was removed from the Capri options list, and placed into the early Ford Transit. Thier now a very rare and sought after motor, (for some silly reason).

Im a Big Straight Six fan, thier just so smoth, and like texan said, so incredably well balanced, and as far as im concerned they do when corectly tuned have a far nicer exhasut note than any V8 iv ever heard in similar levels of tune.
I would however like to see VAG's new W16 engine for the new Bugati, sounds like quite a monster. :frog:

The 1968 Saab Sonett had a V4 engine also....

Thanks, there's some good reseaning for not making a V4 then. On an almost unrelated topic, Question; Can anybody tell me the largest Cylinder (#) of an Aircraft Engine That was ever produced?

Porsche- That'd probably be the XR 7755 from Lycoming, 36 cylinders and about 127L of displacment....
http://www.aviation-history.com/engines/xr-7755.html

Very good Texan! I didn't think that anybody would get that so fast. That is right though the Lycoming XR-7755. Only two were made and featured variable cam and ignition timing and two=speed propeller drive. The project was started in 1943 and cancelled in 1945. Yes the displacement is also correct, I'm not sure about Metric measurement but the 7755 stands for the 7,755 cubic inches it displaces! Approx. 20 times more than your avergae V-8! Oh well a short lived engine facts question.

Yeah Nissan has some good engines like the VQ30DE, but the best car engine they have designed is their 2.6 litter I-6 with twin turbos in their skylined....any car that weighs over 3000lbs and does 1/4 in 13 and can still turn deserves the credit =)

Saab Turbo's are the most fun engines, their 3.0 litre V6 is a GREAT engine with 200hp or so... I like the 2.3litre turbo, no 6, though.. saab was the first maker who used turbos so theyre the best at it :D

Originally posted by YogsVR4
V6 preferably with a couple of turbo chargers :D

Hey, I was going to say that! :D

i love nissans VQ V6's but i think the rb26dett inline 6 from the skylines is my favorite engine.
i love the porsche's 3.6 flat 6's too, though, even without the turbo's.
wow i guess i didn't establish any point or make any concrete decisions there did I?
good 6 cylinders rule. you can get 8 cylinder hp, with 4 cylinder gas milage, and moderate to good torque bands

dude !!! someone with engineering skills help me shove this thing in my camaro !!! 5000hp !!! WOOHOOOO !!!

http://www.aviation-history.com/engines/xr-7755.jpg

Originally posted by matt
When I hear V-6, I think of an engine that is underpowered. They are too widely used in POS cars.

They are also used in some beast cars. It all depends on how the engine is tuned and built.


I'm down with the V-6.:D :D

Hmmm, you can make very strong straight sixes power-wise, but structurally, they are weaker than V6 engines. I'm going to say horizontally opposed is my favorite.
PS: when I read I-six, I think of an I-head six cylinder engine.