YellowFvr

I've got a 94 automatic with about 65k miles on it.....I've been looking at a package from http://www.motorsporttech.com/corvette/packages.html that gives ya 400-415 hp. I'd like to run about 12.7's in the 1/4 on my stock gsc's will this do it? (I also plan on a jacobs ignition system).....anyone have suggestions as the most reliable and cheapest way to do this N/A???

YLO Z06

Welcome to the Forum! I have a '94 also; sure do like yellow (that was my second choice behind black). Now, MTI has good stuff, but they are VERY expensive. You could build a 383 or 396 for half of their cost. Do you live in Houston? Try http://www.internetracerssupply.com , http://www.agistino-racing.com , or talk to Chris at http://www.speeddemonmotorsports.com (he is a member here). I'm sure some people have better info on this than me (my engine is stock)...

Jimmy69

I'm not saying it cant be done, but without some sort of sticky tire, its gonna be difficult. For a high 12 second auto, I would look at getting a convertor, 3.73 gear, exhaust, and some drag radials. That should get ya pretty close. Throw in a cam, and now we are talking.

Jimmy

J Z06

I've said it a thousand times, now it's 1001 Dup Mackey and Panuzzo's combo and it's an easy 12 second car.

1. Drag Radials
2. 2600(2800) Stall Convertor(be it Vigilante or Pro Torque)
3.HPP to firm up the shifts and I think a little later in the band.
4. Free Flow Exhaust(Mack had SLPHeaders JP had Muff Elims No Headers)
5. 3.73 gears. If you plan on pounding this thing at the track.. you might want to go to a Dana 44.BUT another funny thing, Mack got three years out of a 36/3.73 Panuzzo popped His on the line in the latter part of the season. It's hit or miss on the 36. If you plan on a lot of racing with DR's go to a 44.
6. Not for everyone, try yanking the front sway bar. If you're a corner carver, you'll need it. As long as you drive easy..you won't miss it.

Hope this was helpful. Mackey or Panuzzo.... chime in if I'd left anything out. :cool:


[Modified by JD 90 383, 1:52 PM 9/4/2001]

YellowFvr

I'd like to run about 12.7's in the 1/4 on my stock gsc's will this do it?


[Modified by YellowFvr, 8:12 PM 9/4/2001]

SPD DMN

It would be close. With normal track conditions here in the Dallas area you need about 375 rwhp to see those kind of numbers on street tires.


(Bolded the street tire comment)


[Modified by Vette92, 8:05 AM 9/5/2001]

TNTC4VETTE

I'm currently at 12.9's with my current mods...including my beloved 2.59 rear...I'm in the pro-cess of changing rears thanks to the group purchase on 3.54's and hope to have the converter in soon as well.

YellowFvr

I'm pretty sure that with 375 rwhp you'd be running low 12's on street tires. I should've been more specific and told you gusy that I want to keep my stock gearing. I guess I'm thinking about headers/cat-back, pulleys, iginition system, k&n and modified airbox stuff, hypertech programmer, 52mm throttle body, cnc heads, adj FPR, and 1.6 rockers and maybe a cam.....but the thing is....that's not gunna be too cheap.


[Modified by YellowFvr, 10:47 PM 9/4/2001]

ralph

don't leave a high quality converter off your list. like jd said we have several examples of stock engine 12 sec LT1s at etown with just converter, gears and drag radials. If you don't want gears, the converter may even be more important. I'd suggest a protorque or vigilante with between 2600 & 3000 stall depending on how much you can live with. btw, why are you against changing the gears???


[Modified by ralph, 5:12 PM 9/4/2001]

95CYC4

Just spend the money on an NOS nitrous kit and call it a day. You'll be in the 12's with no problem. Of course getting a shift kit, new converter, drag radials...etc would be great too, but if you want to do one thing to your car and make the most difference that's what I would do, and I plan on doing it anyway. Have fun and good luck. :cheers:

mackeyred96

12.46 @108.95 with a stock motor and 3.73 gears, vigilante 2600, and drag radials. No problems. Panuzzo is still running this combo.
I'm still running the stock bottom end with 95,000 miles on it with a Cartek top end package and have run 11.71 at 116 in bad air.
It all in the combination.

Dr. Doom

I will be impressed if you can do it on street tires. Even with the package that MTI offers(top end only-heads and cam- and some bolt ons, I believe), without some kind of tires, it will be tough to do. Just say you are making their advertised 400-420hp minus ~20% for driveline loss and you are looking at 320-340 rwhp. That is pretty good, but you still have to be able to apply it to the asphalt. I suggest finding a used set of rims- either 17" and use drag radials or 15-16" and use Mickey Thompsons' ET Streets and you will have no problems.

nickd

I agree with JD, alot of people make it harder and more $$ than it needs to be.
I ran a 13.25@105.91 on GSC's with the BPP Rammer, 160° Tstat & reprogrammed fans, 3.54 gear, and muffler elims.
I spent around $1500 for the above mods.
I have since added drag radials and the B&B catback, going back to the track this weekend.
My next mod is the PI converter and gutted cats.

Dr. Doom

nickd,

I don't know if I would recommend the gutted cats. I just put them on my '94 and didn't pick anything up at the track. Granted that weather conditions were not as favorable as the previous time to the track and the track wasn't biting as well either, but I actually ran a slower time(1.8xx 60' was the best I could do- with ET Streets). I haven't been able to do another dyno run as of yet, so I don't know the actual numbers(if I picked up anything or not). In all honesty, I wish that I would've just bought the Hooker ceramic long tube headers instead of the shorty headers and gutted cats. Also, you will get a very noticable exhaust/gas smell. Just my opinion.

89'Bowtie

All this talk makes me wanna go racing :nono:


[Modified by 89'Bowtie, 5:27 PM 9/5/2001]

Chris@SD

He has now said twice he would like to do it with the GSC's. Most of you are offering solutions with the aid of drag radials. For whatever reason, he does not want to use them, so I am going to have to go along with Vette92(PS your parts are on the way! ). You will need more HP to get down the track in 12.7 on GSC's. A converter would be good if you get sticky tires, but ith the GSC's, I think it is just going to leave you on the line going up in smoke. I would hold off on that for now.
Heads and cam are almost going to be essential to achieve these goals on motor only, but I think it will be quite doable! I would suggest Stage II heads and a pretty sizable cam, something like out SDM-4 cam which specs out at 226/236 .535/.560 with 1.6 rockers. Now, here is the delima. With a cam like this, you will more or less need a stall converter. I would suggest the Vigilante 2600(maybe 2800). These are some of the best converters on the market in efficiency and durability!
You will need programming and a few other little parts and a little practice at the tree trying to get a good launch with the Vig, but you should be able to get there.
If you would like me to work you up a quote, I would be more than happy to. Email me at ChrisK@SpeedDemonMotorsports.Com if you are interested.

Thanks,

jpee

Chris..

Quote:

>and a little practice at the tree trying to get a good launch with the Vig, but you should be able to get there.<


I agree with what you are saying for the motor.. however you are trying to get him there using GSCs.. (as he asked) but with that converter he'll never get off the line..

I was blowing my BFG Drag radials off 50% of the time at a well prepped track (Englishtown) using that EXACT converter Vig. 2800 w/3.73s

I dont think a hot converter will help, I think if he wanted to stay on STREET tires, your motor set up is great.. he should stay away from any high stall converter.. or he'll just be sitting & spinning..

I had to go to BFGs 325/50x15s they are 28" tall and killed some ET & my 60' went from 1.70 to 1.76 (average) but with the big tires, I have NEVER varied more than .02 in my 60' since I've put them on the car.

In 26 runs over 4 days of racing, my 60' ranged from 1.764 - 1.782

the point is How will a 2800 converter help with street tires ?

AquaMetallic94LT1

You can get a complete LT1 to LT4 conversion kit from http://www.paceparts.com for 2095. It includes the LT4 hot cam which will necessitate a programing change.

RichS

With my 95 I ran 12.5 on street tires. The basic mods were Ported stock heads, Hot cam kit, 52 mm TB,4:10 gears and some other simple bolt ons. This was with a M6 car not a auto.

Chris@SD

Hence why I said it brings up a dilema.

To get the car to idle correctly with the cam, the converter is needed. To get off the line without going up in smoke, you better stay away from the Vig withough drag radials.
With the heads and cam setup, his race is not going to be the first 60'. He is going to have to use brute force after he gets going though.
I still say he can learn to get off the line well enough with the Vig to get in the 12's though. He surely will not get any 1.7's, 1.8's or even 1.9's though....

Good Luck,