J-SMITH69

kain

i seem to agree with randome.

Cadracer

revs = wear
I love torque thats why i like the cadillac motors.
525 ftlbs at 2800 rpm 325 hp an this is stock components.Gonna throw twin ct26 supra turbos at it in place of the trailer park 283.I think thats whats its gonna have to take to keep up with jeff an leigh an gun for beau. LOL

MikeJ-2009

I think you meant to say that displacement = torque, not revs.

J-SMITH69

if you're talkin to me i meant what i said...

this is what is boils down to, and there are many factors which make this happen, head(s), cam(s), IM, exhaust ext...

revs = horsepower
low revs = torque

if you're building a motor for torque, it won't make power way up high obviously, so there is no reason to be there...

if you're building a motor for horsepower, it won't make torque down below, so there is no reason to be there...

example.

b18b
b18c

same displacement, vtec complicates it a lot, but you get my drift... if the b18c didnt have vtec just agressive cams for way up high in the revs it would make less torque and the same horsepower, while the b18b would make more torque and less horsepower than the b18c.

vtec lets the b18c keep the torque and still create horsepower at high revs with the other cam lobes... that is what its for :P

MikeJ-2009

I think the torque your refering to is based more on the fact that it's larger displacement. If you want to build a torque motor, you build with large displacement. :P

smithSHO

Pushrod motors tend to lend themselves to low rpm - high torque output due to the long valvetrain, thats why most V8s see more low end than top end. The higher revving DOHC cars like yours and mine have a much shorter valve train lending it better to high rpm operation. Obviously a typical pushrod v8 can be built like any motor to make high end HP, but for the most part they stay in the low end. Its hard to make a 1.6L engine torquey so the key is to make it rev out, hold the torque, and built HP.

J-SMITH69

haha nice.

Donald125

one thing i don`t understand about push rod motor is, WHY and WHAT makes it produce THAT MUCH more low end tork.
i am not talking about displacement tho