99gstang

I was wondering what i should run? 1999 GT
Mods
4.6 stroked to 5.0
Stage 2 heads 2v
Comp Cams 102700
Victor Jr intake
75mm throttle Bod
4:10 gears
3100 lbs w/driver
MT ET 275/50-15 & skinnies
Mail order tune
Does anyone know what kind a 1/4 mile times i should run with these mods?
Any and all help would be appreciated.

kugzgt

12.3@109

ctgreddy

that intakes prolly gonna hurt you without some forced induction. I'd say kugz is right on.

mrtstang

I agree with these guys, although with your weight reduction it might do a little better than i think.

99gstang

I choose the Vic jr because i had a Vortec Super charger on the stock motor, i plan on installing it on this motor next year. I argee, i'm convinced its lacks low rpm torque.

99gstang

Well as much as i hate to admit it, i ran the car without a custom dyno tune, only a custom mail order tune, i was i little disapointed with a 12.119 @ 111.44 considering the weight of the car, tires & suspension and a 1.647 60 ft. i thought it would run 0.1-0.3 tenths quicker. I realize i should've waited to have it tuned on the dyno, hopefully its not too late. I was wondering if the tune is hurting the car, it doesn't run that well under 2500 rpm and i've had a couple of codes. Does anyone know if i can cut 0.1-0.3tenths off the 12.119 time with a custom duno tune?
Update
Now I feel like sh!d, I installed the cams and ran this car for 4 months and made 5 1/4 miles passes with the left cam installed 180* off. It seems like nothings wrong with the motor. I took everything apart to reinstall the cams. Will this make a big difference? ?

mrtstang

Actually that might make a big difference. Back when i was just bolt ons only (no cams, headers, or nitrous) and had a mail order tune, i put down 260 rwhp. Well when i did the nitrous i decided to get a custom dyno tune, and even though my n/a numbers were still the same 260 rwhp at the time., the car ran noticeably better. It was faster at WOT, had better throttle response, etc...

So my point is, in your case (having a full HCI setup) you should benefit from one far more than i did at the time with just bolt ons.

That's just my opinion.

97stanger

stock suspension? stock tranny? whats your 60'?

99gstang

Thanks
I hope it does make a significant difference.

99gstang

Thanks
I almost forgot to mention i have a SCT tuner, the tune i have has 20 degrees of timing at WOT, seems a way too low for a built motor. I hope it does make a difference, i sure hate to spin $500. in get minimal gain.