Ok, ok, I'll get grip and a conv next!

 

Ok guys. I got 3.73's in my car. When tax season rolls around im gonna have the QTP headers and a 4000 Yank Converter because im gonna get the Heads and cam package and thats what Yank recommends. If I put it in before I get the H&C what can I expect out of my car with 3.73's LT's and that 4000 stall? Will it be streetable? Im pretty sure it will scoot on down the road but im mainly worried about how streetable it will be.

 

It'll be streetable but your tires will hate you.

 

I too have 3.73 gears, and a word of caution, I would NOT go over a 3200 stall 2.2 STR, unless you want some serious traction problems.

I have a Y3000 2.0 STR coupled to my 3.73's, and with full rear suspension upgrade using BMR components, WITH sub frame connectors, it still gets a little wild.

JMHO

SteveC

 

what do you mean wild? You mean, when starting from a stop light or sign if you accidently give it to much gas it will squeal tires or it will do it all the time? Or just no traction when you punch it?

 

From a dead stop, @ 3/4 throttle, the rearend will want to come around on me, and this is with 35MM front, 25MM rear, solid sway bars.

I drove in a friends vehicle that had the stock 3.23's with a Vig 2800 2.5 STR, and he was going sidways from a dead stop. This looks impressive, however you are going no where, and wasting E.T.

I would get the gears, and match the converter to them.

Good luck.

SteveC

 

Have you ever driven a 6 speed ls1? They will get sideways at just about any speed in 1st gear-- which is good for 46-47mph. 30 mph will certainly get sideways, especially with our higher 3.42 gears.

 

I have driven a bone stock 99 Z28 M6. At 30mph it would not go sideways by just nailing the gas because there is enough traction at that speed to prevent such a violent outcome. I'm not saying you can't chirp the tires, I'm saying with bone stock power, stock gears and stock tires your not going "sideways" by punching the gas at 30mph.

Ok maybe in real cold weather you could but I'm talking a 75-80 degree day, sun shining and a dry street.

 

so then how do you launch your car with your mods and set up without spinning alot? whats the best way that you launch your car off the line?

 

If you just lightly press on the gas your car will drive like normal. It's only when you lay into the gas pedal that the stall comes alive. If you were to get in my car you couldn't even tell I had a different stall unil you punched it. I have a Yank 3200 stall with a 2.5 (or 2.0 can't remember) STR.

 

This is my next mod. I cant believe I almost spent the money on a hood. Good thing I found this thread again.

 

my m6 will go way sideways in 1st and kick back in 2nd and in 3rd. I have quite a few mods though.

 

A stall will help you as long as its bringing you into peak torque band. WHen it pushes you beyond that, i.e. higher rpms, then for that bit of time its hurting you. For most of the rev range, its helping, so overall, it will improve performance at just about any speed.

 

Or he can just learn how to handle it ....

<-------- 3.73s w/3800 stall, 2.85 STR hooked to 403 rwhp H/C

 

Mine does that too! Bone stock it would chirp from a 20 punch. With the lid it would start to lose traction at the top of 1st, with the headers/ory it would demolish the tires in first at any speed, now with the big cam.....well lets just say i don't get any traction till third right now. I've got new tires on the way though along with some new rims!