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#1
05-20-2003, 04:08 PM
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cylinders and displacement
Have you ever seen something like a 6cylinder with the displacement of a V8. Or a V8 with the displacement of a 6cylinder. So hears the question whats better to have, a car with less cylinders but the the displacement of a big engine? Or an engine with its appropriate displacement? Also what about an engine with less displacement but more cylinders? was that coherent at all?
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 Lindsey Boost Enhancer, Blitz EBC, Hot Air Intake, Koni Yellows 
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#2
05-20-2003, 04:12 PM
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ferrari 3.6L v8 in the 360modena...
there's some old straight 6's that are pretty big... it's all about what you want it to do... think about it... viper v10... 8L, 10 cyls. do the math per cyl. same with the ferrari 3.6L, 8 cyls. it's all about tq, peak revs, and tuning. one isn't better, it's all about application
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me. ownage of the Probe-urban ownage of the fearless supra ownage? twice in a thread? yep.  www.cafeshops.com/breakneck
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#3
05-20-2003, 10:21 PM
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"Back in the day" Honda had a 1.5L V-12 as a formula 1 engine.
"Back in the day" Curtiss Jenny four cylinder aero engines (12L in displacement unless I miss my guess) were used in LSR racers. As far as I'm concerned, the layout isn't what make the power, it's the development of the layout. As for displacement, I'm partial to engines between 3.0L and 5.0L in size. They seem to be the best combination of weight, revs, strength, and packaging. But then, you can talk rotaries and we throw the whole displacement theory out of the room.
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Proud Owner/Operator of Haven Raceway and Hobby!
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#4
05-21-2003, 06:16 AM
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TVR Tuscan 4.6L inline 6
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Qualified Automotive Engineer 
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#6
05-21-2003, 03:27 PM
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Cylinders don't limit how much displacement you have, for instance, the two cylinder engines used in older John Deer tractors are of a displacement larger than the 4-cylinder engines in my cars, and the Mazda Carol used a four cylinder engine but had a displacment of just under 360cc (yes I did just write 360cc!)
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 Support America's dependence on foreign oil - drive an SUV! "At Ford, job number one is quality. Job number two is making your car explode." - Norm McDonald. If you find my signature offensive - feel free to get a sense of humor.
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#8
05-21-2003, 07:13 PM
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Actually, I believe you might be thinking of the BRM V-16's which were used. In fact, a BRM V-16 won at Goodwood back when there was a Gran Prix on the old circuit.
Of course, I think that was a 3.0L car since it was back in the FR days of the 50's when the little Cooper-Climaxes were a big deal.
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Proud Owner/Operator of Haven Raceway and Hobby!
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#9
05-21-2003, 07:22 PM
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.
I'm sort of curious that if I were to make my 4.3L into a 4.6, use around the same compression as the Mustang GT (9.6:1 is it?), would the engine itself be faster in a Mustang, slower, around the same?
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'01 S-10 Xtreme - Supercharged 4.3L V6, 10 psi. '88 Firebird Trans Am GTA - 5.7L V8, 4spd auto. '06 GTO Brazen Orange Metallic - 6.0L V8, 6spd (the new toy/daily driver)
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#10
05-21-2003, 08:03 PM
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Re: .
Quote:
Well... You can stroke it for sure. Stroker 4.3l V6 Its not cheap, although this is a race bred V6 and wouldnt pass emissions for the life of it, but you can get the idea of stroking it. It started off as a 262ci block, I believe its now a 272-276ci... around there. Or from 4.3 to 4.45... not much difference. But every bit helps. You could always get a bigger cam for your 4.3l and have the heads port and polished... then supercharge it! 
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2003 Chevy 1500HD - Hauler 1971 Chevy Camaro RS - Track Car User Guidelines It's important to read, like the Bible. But unlike the Bible we will strike you down if you jerk off around here.
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#12
05-23-2003, 06:08 PM
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Quote:
Quote:
if I ever take the head off I'll post picks.
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#14
05-25-2003, 09:34 PM
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Had a 1967 GMC Moving truck in the back yard when I was growing up. My dad disliked the neighbors, LOL. He painted some of it back to white with a paint brush and KILZ white primer after he was done priming the house.
Anyway, had a 401ci V-6. For those of you who aren't familiar with the math, that's a 6.6L V-6. RPMs? Not many, hehe. Get into the sportbikes now. 4cyl 0.6L's. They make wicked power for their size too. About 100rwhp or right around 185hp/L. They have to crank over 12,000rpms to do it though. Oversquare engines are generally superior for max rpm and peak power, while longer stroke engines generally have more low end torque. Doesn't always work that way though as there are a ton of factors around it.
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2002 Mustang GT Coupe 1993 Yamaha FZR 600
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#15
05-25-2003, 09:46 PM
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Come to think of it, I think suzuki built a couple 50cc four-cylinder engines for racing, and they were 2-strokes too
__________________
Support America's dependence on foreign oil - drive an SUV! "At Ford, job number one is quality. Job number two is making your car explode." - Norm McDonald. If you find my signature offensive - feel free to get a sense of humor.
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