Low end torque

[Gemmer]

Now that I look at it, my math is wrong for a few reasons, main one being I used the wrong FDR for the comparison Tranny math sucks!

So correct me if Im wrong, but as I understand it, as long as the ammount of force remains the same, torque is multiplied by a gear ratio and RPM is always divided by a gear ratio.

So, I assume your torque #s to the axles should grow, but the RPM at which the axles rotate at any given engine (or in this case driveshaft) RPM will proportionally lower (why you will now redline and have to shift at a lower MPH)

When I say mechanical torque I am refering to torque created by manipulating the energies an engine makes, not torque that is created by ADDING to the energies an engine makes.

[grandprixgtp_91]

well ive got a 96/97 crate engine and i put my 91 intake and plenum on it, but they are both ported and polished and my T.B. is ported and tapered, so i cant wait to see the effects of that, plus with my origional 91 engine i could nail the redline fast with all that porting and polishing, and straight through exhaust, so with my new setup i should be really fast, due to the fact i have a 5 speed. lol. gonna dump a chip in it, and cold air induction with k&n and im hoping to run 0-60's in under 7 seconds. with my old motor i could do it in about 7.2, but i had to small of tires and they were sping to much, so im gonna put on the proper 245/50Z/R16 and i should hook up faster. ugh, i just need to finish my car so i can test it all, and damn im so excited now im rambling, well i should go.

Jake

[Doubt_Incarnate]

i know this is off topic, but i didnt feel like starting a new thread for one stupid question. yes/no, will dohc heads bolt to the ohv block?

[grandprixgtp_91]

probably not, plus if they did bolt up, it would be impossible to use them , unless you have an assload of cash, but its not even worth it, might as well buy a better crate motor, it would be cheaper.

Jake

[SappySE107]

they will bolt up but thats about as far as you will get. They won''t function on the OHV block.

[89LE]

Hopefully I'm not too late on this thread, and correct me if the following is wrong:

Advancing cam timing increases low to mid torque while decreasing top end horse power.

Retarding cam timing increases top end power while decreasing low and mid power.

Personnally, I would prefer to have lower end torque on my car for everyday stop light to stop light driving. I'm getting ready to replace my timing belt and I'm wondering if I want to deviate from the stock setting. I know about the 13 degree exhaust retard, and guys splitting the difference for intake and exhaust, but what could I expect from advancing both intake and exhaust by either 6 crankshaft degrees or say 12 or 13?

I know most aftermarket timing chains on V8's give you the option of 4 degrees cam adv. or ret. Would there be a noticeable difference if I set the cams with 8 degrees advance on the crankshaft?

Did GM do just the opposite between the '95 setup and '96?