nitrousfox91

hi im kinda new to racing mustangs in the quarter and just asking for a little advice so.......

i have a 91 mustang gt with the following

gt40p heads

msd 6al

msd superconductor wires

mac long tube headers

bbk offroad x pipe........no cats

flowmaster american thunder mufflers

holly fuel pressure regulator

victor jr intake

holly 750 carb........double pump

trick flow stage 1 cam

150 shot nitrous......edelbrock...24 pound bottle

msd distributor

aluminum underdrive pullys

all ac and smog delete

electric fan

walbro fuel pump

3 core aluminum radiator

king cobra clutch

stock t5

stock rearend with 355s

ten holes with 10 inch drag radials

all on roller motor

my question is what should i launch it at and sould i ride the clutch out of the hole....

also any guesses on what it will run is appreciated

thanks.......jim

ctgreddy

on motor id guess in the 13's somewhere.
on the bottle id say high 12 area.
not sure about the launch but if it were me id just rev it up to about 2500 or 3000 rpm and pop the clutch out as soon as the 3rd yellow bulb lights up.
you may red light the first time but thats what the practice rounds are for, to see what your car reacts best to.

mjr46

well honestly the victor intake for your combo is all wrong...gauranteed that motor is loosin' some bottom end and runnin' out of it on the top end....A rpm intake and 650 carb would be better suited and probably perform better with that combo.....but with the NOS my guess is low 12's high 11's maybe

jtmustang

id say that your intake is too big too , along with a 750 on that motor too much 650-675 is enough.

as for launching i cant help u there as i have never raced at the track yet either , only screwing around on the backroads and streets. but i will be visiting the track this year for sure after i get a few miles on the new motor and install my rear suspension that i have and then a set of drag radials out back.as i am a stick car too so i am not sure but im lookin at installing a hurst line loc on my car before i go

shawnk007

+1 on the victor jr. I highly doubt your powerband is 3500-7500 rpm. I agree with mjr46 bout the rpm, but I would recommend the rpm air-gap and a 650 carb.

5.0stanger

When I launch on DR's, I have found poping the clutch is a little too harsh. I rev to around 4000and let the clutch out quickly and matting the gas at the same time. I was getting 1.7 60' all day long on stock cut springs. With my new coil over I bet I will be getting 1.6's in the 60' doing the same thing.

92GreyGT

I don't howyournitrous comes in, (full thottle switch, button on shifter etc.) but make sure that clutch is fully engaged before the nitrous comes in. I don't care how good a clutch you have, the shockof nitrous on a clutch when your foot isn't off that pedal will burn that disc up quick. 5.0stanger is exactly right about the launch. Nitrousfox, what kind of suspension do you have now?

WhiteWindsor

It's already been said but i will say it again. The vic jr and 750 carb are overkill. I have a 357 with 11.1 compression, custom grind with 588/622 lift and dur@ .050 is 246/259 and i run the vic jr and Holley HP 750. As far as what it will run, that depends alot on the driver. You could have a 12 second car but a 14 second driver. Just run it and see. If it's your first time at the track dont expect to get the most out of the car's potential. Practice-Practice-Practice

rust_stang

right^ my first time down the track was in a 12.5 second car. I ran only 13.1 then 13.7 witha missed shift.

DrmZero

if you are running stock rubber then definately dont just dump the clutch. it will kill your 60 ft time something fierce... i like to go around 1800 rpms and feather it out... gets me a 1.9 60 on low profile street tires... as for running the stock t-5, i wouldnt powershift too much because it wont hold up too long... as stated before, you intake is too big, but your n2o will help pick up that slack... nice setup man and good luck!