1991 GTP 5 Speed Turbo DONE!!

[grandprixgtp_91]

OK finally, it was a nightmare lol but well worth it, my GTP Turbo is done! here is some pics!

Jake

[1988GTU]

Looks fun. Run it against anything yet?

[SappySE107]

cool, so I will be seeing you this weekend then?

[grandprixgtp_91]

Ill have to get back to you on that, work booked me to work this saturday, so as long as i have sunday free then i can make it.

Jake

[Joseph Upson]

You better wrap that coolant hose or the turbine housing will cook it. I would put some kind of shield around the turbine housing also. Looks good and bet it sounds good to.

[RedZMonte]

Hell yeah! looks good. Its good to see another DOHC turbo out there. what are you doing for fuel/tuning? what turbo are you running? I would highly advise you to use some serious heat wrap on the fuel lines and new the wiring. i used some heat sleaves over my fuel lines and you already have the piping wrapped. I got a turbo jacket for the exhaust housing for mine for i think Titan motorsports (Toyota Supra specialy shop) and it helped a TON. Looks good tho.

http://store.titanmotorsports.com/bolotubl.html

http://www.forcedinductions.com/product7.htm

S

[grandprixgtp_91]

Well here is a list of specs on the car , instead of typing it all out ill just copy and paste it lol.

1991 Pontiac Grand Prix GTP
5 Speed Manual Transmission
3.4L DOHC V-6 4 Cam Engine
Heavy ported upper intake plenum
Heavy ported lower intake
Heavy ported heads
Heads Machined .010"
Intake cams advanced 6 degrees
Exhaust cams retarded 6 degrees
Underdrive pulley
Billet aluminum engine strut with poly bushings
Magnaflow high flow catalytic converter
Flowmaster 40's series original flow mufflers
Spec Stage 3+ race clutch
Turbonetics 62-1 - 62mm turbo, stage 5, vband, .58 a/r
Turbonetics Evolution Wastegate
Turbonetics Raptor Blow off valve
X02 Racing Intercooler
Polished Aluminum pipe kit for intercooler piping
Ford Racing 42.5 Lb/Hr injectors
GM 2 Bar Map sensor
Battery relocation to the trunk
Autometer Phantom Boost gauge
AEM Wideband 02 sensor
Custom computer tuning
17 x 9 Saleen mustang rims
P255/40Z R17 BFGoodrich GeForce KDW tires




So basically the turbo is a Turbonetics 62-1 stage 5 turbo ,62mm, .58a/r , v-band (this thing spools fast!)

as for computer tuning im messing with the TGP code to get it running right, having the autoprom emulator makes this alot easier.

and for fuel im running 42.5 Lb/Hr Ford racing injectors

i did wrap up the fuel lines with heat wrap and i bent them up outta the way so there not so close to the downpipe , and i also wrapped the end of the master cylinder for the brakes because it was close to the downpipe at the end.

im definatly going to look into that exhust housing wrap though, it looks like it would really lower under hood temps.

as for speed, lets just say, it hauls ass. right now its only boosting to 7 psi, when im all done tuning ill turn it to 9psi.

but last night me and my neighbour were emulating going down the road and we did a 0-60 test, and with a crappy launch and it running at 10.5:1 a/f under boost we pulled a 0-60 off in 5.5 seconds so when it bring the a/f ratio to about 11.5:1 and raise the boost , this thing should really haul.

Jake

[Barry]

Thats a turbo done right!

Very nice work, thats actualy the first boosted dohc ive seen.

Looking forward to a timeslip after a good tune.

[gpchris]

Amazing! Did you do this on the striped one?

[grandprixgtp_91]

Yep its the white one with black stripes, the exact one in the pic.

Jake

[gpchris]

sweet, that thing is sweet! Wana make me a turbo crossover? lol

[grandprixgtp_91]

Haha, lol the the turbo crossover pipe was the easiest thing to make.

Jake

[gpchris]

How much would you want? I wouldnt need it until next year but I def do need one.. And you need to get some more pics of that thing!

[grandprixgtp_91]

more pics of what, i have lots of pics of the pipes

Jake

[gpchris]

Of everything. I want to see more of the car, turbo, etc.