1993C4LT1

I figured traction would be a problem. Dumb question, do you feel ASR work with the power you're making?

GS977

the asr will get you killed!!! it's got to be the worst traction control ever created. it's like turning the engine off when it comes on. then seems like it takes forever to turn off. not good when trying to merge. I hate the asr. 1st thing I do after I start the engine, turn that junk off.

1993C4LT1

I'm not much of a driver to say it sucks, but I thought it's been helpful at times. Usually in the rain, or punching it from a stand still. Then again, how many cars had TC in 92? Turning it off as soon as the car starts,

856SPEED

Well, that kind of rwhp will have traction problems,

You are putting down a pile of beans with that C4! I am running mid to high 12's with street tires (Michelins) with the power levels I have and I am over 100 hp less than you at wheels, so......yea.....

luckydekko

Awesome! Well worth the drive obviously. Are you in North Texas? I also would love to be on the list for one of your spoilers!

5abivt

Great numbers ! I think there was easily another 1000 rpm in that motor on the dyno the curve was still climbing it seems. Also good looking spoiler ! hands down the best Ive seen for a c4 and I think it $$ in the bank should you make them.

GS977

thank you!!! I have been shifting at 7000. it pulls hard and never lays over but the dyno shows it peaks at @6000 so I will try it at 7000 and 6500 and 6000 at the track and see where it runs best. but it's good to know where the power stops. I'm definitely making the spoilers, I have enough supplies to make at least 25 but the winter weather is not cooperating. as soon as the weather warms i'll be making them.


thank you!!! yes I'm @ 20 mins nw of ft. worth. i'll let you know as soon as I have some made.

I'm curious what it will do now, we have the 1st test&tune of the year in 2 weeks at texas motorplex. if the weather cooperates i'll be there. only problem is I have to drive @ 1 1/2 hours and race on 315 sumo street tires. I hope they prep the track.

I'd like to see how yours works compared to mine. I've never been in another vette with t/c so maybe it's something wrong with mine.

1993C4LT1

Whenever we meet up at C&C or something, I'd take you for a ride in my car. If I still have it at the time. Getting ready to sell it and buy an Admiral Blue

5abivt

What's your budget ?

856SPEED

Oh and yes, add me to the list of "I'll take that spoiler too" if you make one as nice as yours for my ride.

I am normally the in the anti spoiler crowd but that is the only one I have ever seen that did not appear obnoxious.

I have the 91-96 year on my 85 (as you can see from my avatar so it would work nicely); actually its a 90 ZR1 replica rear to accommodate the early C4 beltline but is the proper width for the standard C4; not as wide as the ZR1.

Paul Workman

NOW you're havin' fun!!

I noticed the graph cuts off at 6000 rpm, yet HP has yet to peak. It looks like the operator(?) was cutting it off prematurely, or ?? Seems there's a little bit more left on the table above 6000.

GS977

thank you Paul, yes it's a blast to drive. it pulls hard and quick to 7200, I used to shift @7000 but the dyno shows it peaks @ 6000 and starts to drop. you can't see it in the pic. so i'll prob shift @6500 now

GS977

thanks, as soon as the weather warms up I will be making them. have enough materials to make @ 25 to start with. i'll let you know as soon as they are ready. can't wait to see one on your car with the reverse GS colors. it will look KILLER!!!

GS977

cool!!! you getting an auto or 6spd?

leadax

Include me on your list plz. Awesome!

Paul Workman

I thought so.

BTW, if you don't have a shift light, that would be much preferable to the tach, IMO. And as far as shift point goes, with the light you can easily set it anywhere you want it to go off.

By doing some rolling pulls through a shift or two with a stopwatch, you can identify the ideal shift point. However, you want to do the pulls with the engine temps and weather conditions as close as possible.

Also worth mentioning, the shift point is significantly lower if you power shift (don't let up between gears). For example, GM's Jim "Jingles" power shifts the LT5 at around 6300 which is just below the power peak on a stock motor. This is in contrast to the best times (in the quarter) when lifting between shifts - done closer to 7000 for best results. (Truly, 6300 is short-shifting the motor, but the energy is not lost as it is stored in the dual mass FW until dumped into the drive train once the clutch is lifted.)

Anyway... Sounds like you have a tiger by the tail there!!

1993C4LT1

I'm fine with either, but leaning towards a 6spd.

GS977

thank you. I will indeed.

Paul, I do have a shift lite but I can't really see it good. it's in the a/c vent. I'm going to move it. when I go to the track I will find out where it runs best.


I have a 700r4 with a 10 in. 3500 stall in my 82, it's fun but I prefer the 6spd.in my 96. I think it's just personal preference.

Hairy W Bush

wicked numbers...my car is already a blast and I'm not making as much and you so that would be even more exciting.

GS023

Great numbers. Think I will give them a call. Mine has a mail order tune so I would like to get it fine tuned and see where my numbers wind up on GS023.
Do you make the appointment through the shop or Moe? Also, what is the cost?

Thanks