Engine 96 Pi Heads And Bolt Ons..

arena314 · Sep 28, 2015

I have a 96 gt with pi heads catless pypes xpipe with magnaflow mufflers 373 gears in the rear I think. Tremic 3650 trans bama tune and cold air intake. I'm pretty sure that's all I have but not 100% because I bought the car like that but I was wondering if you guys would be able to give me a ball park rwhp number based on the mods I listed. Someone told me I'm looking at about 300 crank and between 260-280 wheel but I'm not sure so what do you guys think? Thanks

jeno_labanca · Sep 28, 2015

Sounds about right probably around 260 to the wheels though

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arena314 · Sep 28, 2015

Yeah I was thinking around there too. Soon I'm going to do a throttle body and I want to do cams but it'll be a while till I do that. I'm trying to get my car around 300 wheel

jeno_labanca · Sep 28, 2015

Cool let us know your progress

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arena314 · Sep 29, 2015

What other mods do you think would be good to gain some power on those 2v's?

97gtstang01 · Sep 29, 2015

I'm interested in this as well. I'm in the process of trying to locate parts for the pi swap. And wanting to know about more bolt ons

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arena314 · Sep 29, 2015

Well with the mods my car has done to it it really makes a huge difference compared to Even a stock pi motor. It really moves pretty good I'd say it's just as fast as my brothers 3v 4.6 but his only has a muffler delete. But I'm just trying to get some more from it

97gtstang01 · Sep 29, 2015

arena314 said:
Well with the mods my car has done to it it really makes a huge difference compared to Even a stock pi motor. It really moves pretty good I'd say it's just as fast as my brothers 3v 4.6 but his only has a muffler delete. But I'm just trying to get some more from it

Mine is in shop now getting headers installed with two cat delete and two resanators removed. Still looking for the pi swap parts.

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COramprat · Sep 29, 2015

My old 96 was at 235 rwhp with Comp 262 cams, PI Intake, catback exhaust, 75mm throttle body and a Trickflow plenum. All of those mods except the cams and intake I was at about 180HP at the wheels. Another 96 that dyno'd the same day was at 174. After the cams, intake and a tune it put me at 235.

The PI swap could have gotten you up to 260 but that is a stretch. A stock 99-04 GT had 260 at the crank and basically that is what you have. 225-230 is more realistic. My mods on my car now (see signature below) and I am at about 340 HP on a Dynojet. My tune was on a Mustang dyno which is why I show those numbers in my sig.

arena314 · Sep 29, 2015

If I'm keeping up with a pretty much stock 3v wouldn't you think I'm putting down more then that to the wheels?

COramprat · Sep 29, 2015

Not necessarily. Driver is a mod too. I used to beat Z28's at the track and beat an SS twice until he learned to shift. They all had 100+ more HP than me.

Don't underestimate the gears. That may put you in the powerband faster and out accelerate the other guy.

arena314 · Oct 3, 2015

And BTW this recently started happening as it got a little colder out. When my car is cold I guess the first 10-15 minutes of driving its hard to get it in gear. It doesn't grind or anything its just hard to get it in then once it warms up its fine. I have a tremic 3650

COramprat · Oct 3, 2015

Possibly taking a little longer for things to get lubed up. How cold is colder?

arena314 · Oct 3, 2015

Like from the high 60 low 70's on the morning to low 50's in the morning

COramprat · Oct 6, 2015

That temp shouldn't make a difference. Hard to get into gear is bearings. Sounds like they are not getting lubed up right away. Might try a different type of tranny fluid. I've had some luck with Lucas Oil transmission additive.

arena314 · Oct 6, 2015

Right now I'm not sure what brand I'm running but I know its mercon 5 fluid. Think the short shifter has anything to do with it

97gtstang01 · Oct 6, 2015

arena314 said:
Right now I'm not sure what brand I'm running but I know its mercon 5 fluid. Think the short shifter has anything to do with it

Mine has the short throw and reverse is a pain in the ass.

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arena314 · Oct 6, 2015

Yeah reverse is a bitch on them

97gtstang01 · Oct 6, 2015

arena314 said:
Yeah reverse is a **** on them

Mine pops out at times if I don't go into first gear then reverse .

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arena314 · Oct 6, 2015

Mine stays but sometimes I throw it in 4th by accident

Engine 96 Pi Heads And Bolt Ons..

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