jonesc6

Does anybody have a way or no how to make low in torque on c6 base auto?

jerry07dx

500 shot of NOS should do the trick!

subfloor@centurytrans

4000 stall converter, LS7, 3.42 gears or all of the above in my case.

jonesc6

No nitrous! How does that stall converter work?

subfloor@centurytrans

A torque (stall) converter multiplies torque when the car starts moving based on its STR (stall torque ratio). A stock converter has an STR of around 1.8 which means that for every 100 lb/ft of torque the engine makes its gonna be like you're making 180 lb/ft.

My converter has an STR of 2.5 which if you do the math you'll see ends up being a noticeable difference even on a bone stock engine.

All of the numbers shown above aren't dead on accurate but illustrate the general way in which the converter works.

Guard Dad

Lower final drive gears is the simplest, no engine mods just install and enjoy. They can make a nice improvement at the expense of a bit of a drop in fuel mileage and an increase in engine noise.

Many folks like it but nitrous always put me off because it has to be maintained and because it has the reputation for nuking engines.

If you want serious, in my opinion, low end power you are looking at a blower. You can really get some really instant massive power with the right setup but it will cost $5k-10k.

jonesc6

OK would it be OK to put that in car that I drive almost on a daily my friend has a c5 z06 an we where running about 70mph an nail them he pull away from me like I was standing still. About time my auto shifted down he was ahead off me! That's why I ask about low in torque? Any more ideas?

jonesc6

So a pro charger would do the job? Any name brands to look for?

Guard Dad

I'm not an expert on which set up would be best for your needs but I don't think you will get what you are after with a turbo so it will be a matter of which supercharger at what price works best for you. A big consideration is will you need to pass some sort of smog inspection, if so, your choices are reduced considerably. It is my understanding that the Edelbrock E-Force supercharger is emissions compliant. It produces about 600 HP (about average for a supercharger) and seems to have a good reputation. After 50 years of messing with cars I have come to appreciate quality, trouble free products so I am now more conservative with my mods than I was back in the day. Just my2cents.

ProfessorDeath

3.73 or 4.10 gears. You'll lose some top end, but unless you're racing QuadblackC6 you won't need to go over 175mph anyway. Instant and noticeable difference, and they're about $500 installed.

Guard Dad

At 70mph you are not talking low end, you should be in a gear that puts you right at peak torque (about 4500 rpm), for this type of race you want some serious top end power. Low end is more like 0-30 mph.

Was he stock? He really shouldn't be able to blow you off unless he's not stock or you are in the wrong gear.

Don't wait for the tranny to downshift, you need to preselect the proper gear to minimize his jump. You may need to consider some tranny upgrades to make better use of what you have.

Are you running an LS2 with an A4 or an LS3 with an A6? Makes a big difference.

Dano523

It's a V8 corvette motor (ls2 show below), and has plenty of low end torque.


The question you are asking is how do you get that torque from the motor to the ground instead in an auto.

The answer for that is a retune on the trans and engine, and even a higher stall converter if you want to slam the trans with even more torque (higher RPM) before the trans/wheels sees power.

08C6

Nice color of Corvette !!! More torque - get more power also... I did Magnuson S/C - Header package with the right tune car leaves like a rocket ...

jonesc6

My buddy's c5 z06 has exhaust an cold air intake I never shifted down I just pressed gas pedal to floor. Thought I would mess tranny up at 70mph by shifting it down

Boomer111

That is a auto for ya!

jonesc6

Yes I no the only reason I got auto I have a bad left knee lol

Guard Dad

Which motor do you have, an LS2 or LS3?

You are giving up a lot by not pre selecting the proper gear.

Don't forget that there are "horses for courses", if you are not starting at a speed that puts you at peak torque (about 4500 rpm) you are playing his game (with a 6 speed manual he has a much better opportunity to be in his ideal gear when the race starts). If the cars a close in power, getting the jump at the start is the whole race.

Guard Dad

Does "an exhaust" mean headers and a tune?

If he has a cold air induction, headers w/full exhaust and a tune and you have a stock LS2 with an A4 (still don't know which engine/tranny you have) he has better gearing and more power, you can't win that race.

jonesc6

I have ls2 so at 60-70mph I could shift down from over drive to 3?

ZR1Cat

One will probably never notice the theoretical loss of top end, but you will feel it in the loss of MPG. But 'gears' are the best bang for the buck on increasing TQ on a manual. Lastly, with 4.10s you will run through first gear faster than you can blink.