[stangballer]

Alright its a 1994 gt.
List of mods
Y302 svo aluminum heads(according to him basically the same as gt40's) w/ crane 1.72 roller rockers, upgraded springs w/ Ford Racing M-6051-A50 high performance engine gaskets kit
cobra intake upper and lower w/ Ford Racing M-9439-A50 Gaskets
bbk 70mm throttlebody
steeda 19 cam /w ford racing timing chain, and a pro race balancer.
msd coil
egr delete
smog delete
a/c delete
spec stage 1 clutch
flowmaster 40 exhaust
ORX
ford racing shorty headers
eibach pro kit lowering springs
manaul fan switch
bbk short shifter

How much wheel hp would it make? its through a 5 speed too. Also what would i be looking for in the 1/4 with street tires and an average driver.

[G.T. Rags]

4

[Haseeb718]

probably around 270 rwhp and 340 rwtq. and a low 13 second car hopefully.

[Garrett]

With collecting all the facts I must say you have ATLEST 348rwh.


















































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. Kidding.

[2002BLGT]

if you are not going to get a tune id say 250rwhp , with a tune 265-270rwhp is possible

[M L Struck]

crank hp around 300-325

[Bowers]

Originally Posted by 2002BLGT if you are not going to get a tune id say 250rwhp , with a tune 265-270rwhp is possible

Agreed!

[96gtponyred]

you guys are giving him low numbers i'd say at least 275 with a tune

[Bullitt95]

290-300rwhp with a tune.

[Bowers]

Not going to happen with the GT40 heads. I had AFR 185's, Edelbrock Performer Intake, BBK 70mm TB and 75mm MAF, 24lb injectors, MSD dist w/ coil, MSD wires, 1.7 crane rockers, E303 cam, BBK longtubes w/ 2.5" o/r H and flows. No a/c no smog....Tuned with Diablosport on our MD dyno @ 326whp.

A similar setup using the AFR 165's yielded about the same results making 306whp, the GT40 heads flow better than OEM heads but not as good as a good set of CNC'd aftermarket heads.

[Bowers]

SVO GT-40 Y302 Valve Size Intake - 1.94, Intake Ports Flow @ 160cc
SVO GT-40 Y302 Valve Size Exhaust - 1.54, Exhaust Ports Flow @ 53cc
64cc Chambers

AFR Street 165cc Stud Mount Valve Size Intake - 1.90, Intake Ports Flow @ 165cc
Street 165cc Stud Mount Valve Size Exhaust - 1.60, Exhaust Ports Flow @ 69cc
58/60/61cc Chambers

AFR Street 185cc Stud Mount Valve Size Intake - 2.02, Intake Ports Flow @ 185cc
Street 185cc Stud Mount Valve Size Exhaust - 1.60, Exhaust Ports Flow @ 69cc
58/61cc Chambers

[Bullitt95]

Originally Posted by Bowers Not going to happen with the GT40 heads. I had AFR 185's, Edelbrock Performer Intake, BBK 70mm TB and 75mm MAF, 24lb injectors, MSD dist w/ coil, MSD wires, 1.7 crane rockers, E303 cam, BBK longtubes w/ 2.5" o/r H and flows. No a/c no smog....Tuned with Diablosport on our MD dyno @ 326whp. A similar setup using the AFR 165's yielded about the same results making 306whp, the GT40 heads flow better than OEM heads but not as good as a good set of CNC'd aftermarket heads.

The Edelbrock Performer intake only flows about 215cfm per runner so even if you have bigger heads that flow 250+cfm, they'll be restricted by the intake. Therefore your AFR 185's won't have performed to their full potential and that's why you managed only 326rwhp. I'm sure you'd have at least 20rwhp more if you went for the RPM II intake.

[Haseeb718]

three fiddy