91 rs t76 build!
91 rs t76 build!
So i have been planning on doing a turbo build for some time. I started buying all the parts a while back. And started last thursday with the build.
Most of the motor was already done but now i want more power
Parts im using:
355
eagle cast crank
reconditioned rods
forged two valve relief pistons
Custom grind comp cam 230 duration and .540" lift hydro roller
brodix ik200 heads
victor jr. intkae
homebrewed blow throu 750 hp carb
mallory 4309 regulator
weldon 1100A fuel pump
custom intank pickup
bought my hot side setup from turboiroc off theturboforums cuz hes going ls turbo
Car im starting with

The hotside i bought

Fueling system stuff



My turbo, Master power t76 1.00AR t4

more parts


Goofing around when i got my intercooler
Most of the motor was already done but now i want more power
Parts im using:
355
eagle cast crank
reconditioned rods
forged two valve relief pistons
Custom grind comp cam 230 duration and .540" lift hydro roller
brodix ik200 heads
victor jr. intkae
homebrewed blow throu 750 hp carb
mallory 4309 regulator
weldon 1100A fuel pump
custom intank pickup
bought my hot side setup from turboiroc off theturboforums cuz hes going ls turbo
Car im starting with

The hotside i bought

Fueling system stuff



My turbo, Master power t76 1.00AR t4

more parts


Goofing around when i got my intercooler
Last edited by pajama sam; Sep 11, 2010 at 10:48 AM.
Re: 91 rs t76 build!
Now for the build
Alright finally got started
Thursday: Disconnected everything and pulled motor.

Friday: Replaced valve springs, Cam, lifters, oil pan, intake gaskets. Also mounted intercooler.


Saturday: Motor Back In connected a couple things back up

Tuesday: mounted up trans and trans lines.
Wednesday: Got all accesiories on radiaor in. distributor in and put to TDC. and adjusted rocker arms.
Today: Mounted up headers and crossover pipe and TURBO! OMG lol so excited


Still got a bunch to do but ill keep updating this.
Alright finally got started
Thursday: Disconnected everything and pulled motor.

Friday: Replaced valve springs, Cam, lifters, oil pan, intake gaskets. Also mounted intercooler.


Saturday: Motor Back In connected a couple things back up

Tuesday: mounted up trans and trans lines.
Wednesday: Got all accesiories on radiaor in. distributor in and put to TDC. and adjusted rocker arms.
Today: Mounted up headers and crossover pipe and TURBO! OMG lol so excited


Still got a bunch to do but ill keep updating this.
Supreme Member

Joined: Jul 1999
Posts: 1,773
Likes: 7
From: Panama City FL
Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: 91 rs t76 build!
Looking great... glad to see another build, this forum has been a bit sleepy lately in terms of new projects!
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: 91 rs t76 build!
def keep up the good work..im thinking of doing the same thing...........
Re: 91 rs t76 build!
Put oil feed and return onto turbo.
Found out my 3" down pipe isnt going to work. the actual outlet of a mp t76 q trim is 3.25 so the v band i had isnt going to work. So im going to a 3.5" while i still have the chance.
working on all the intercooler plumbing got a little done on that.
got to still move battery to the back too
Joined: Nov 2007
Posts: 715
Likes: 0
From: Mechanicsville Virginia
Car: 1989 Turbo Trans Am gta
Engine: 383 78mm turbo
Transmission: Th350 rmvb with brake
Axle/Gears: 9 bolt 3.45s
Re: 91 rs t76 build!
i was following this thread on the other website but this one keeps me updated with emails.
Whats the brand and specs of the pistons? if i may ask
Whats the brand and specs of the pistons? if i may ask
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Re: 91 rs t76 build!
Well i got them with the motor(bought the block, pistons, and my old heads from a guy and had my machince shop guy clean everything up and machince all of it) but my machine shop guy said that they were trw forged pistons when he cleaned them all up for me. they are 2 valve relief pistons but im not exactally sure on full specs. but i should be between 9:1 to 9.5:1 compression
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: 91 rs t76 build!
Looks good, going to be a nice setup! May make a suggestion on moving that MSD unit off the firewall when the downpipe is going right underneath it.... thats going to be a LOT of heat and may kill that unit
Re: 91 rs t76 build!
Its actually got a lot of room between the two. ill show a pic once i get my new down pipe there and the down pipe will be wrapped so it should help a little. but yea ill be moving it if it gets too hot but we will see for now
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: 91 rs t76 build!
Heat shield it well. My downpipes and manifolds radiate alot of heat and have started to melt wires up to about a foot away
Definately wrap the pipes and shield off the unit.
Good luck with the project
Definately wrap the pipes and shield off the unit.Good luck with the project
Supreme Member

Joined: Jul 1999
Posts: 1,773
Likes: 7
From: Panama City FL
Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: 91 rs t76 build!
OMG Orr is sooo right on this one. That is an incredibly hot area on a single turbo car... maybe if you have a cowl hood not so bad, but on a sealed stock hood that area is a definite hot spot.
Re: 91 rs t76 build!
wow, yea ill def sheild everything good. didnt no they got that ****ing hot. My cowl hood should help a little too
Joined: Nov 2007
Posts: 715
Likes: 0
From: Mechanicsville Virginia
Car: 1989 Turbo Trans Am gta
Engine: 383 78mm turbo
Transmission: Th350 rmvb with brake
Axle/Gears: 9 bolt 3.45s
Re: 91 rs t76 build!
Hey ur gonna wanna get at least a 4" hood specialy if you're using an ev hat and spacer. The ev hat might clear a 2" cowl but with the spacer it won't.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: 91 rs t76 build!
I thought the same thing until I got my setup running. it does get hot. Wrap really helps. Double layer if you can but that gets very thick and not sure if a 3.5" with alot of wrap will fit down that location.
Senior Member
iTrader: (3)
Joined: Oct 2004
Posts: 805
Likes: 3
From: Charleston, SC
Car: '85 TA
Engine: 350 turbo
Transmission: T56
Axle/Gears: 3.70 posi 9bolt
Re: 91 rs t76 build!
You've done a good job so far. My TA is the same color and I love it. How much boost/hp are you planning for? With the cast crank/rods I might be a little worried. How are you controlling timing?
Re: 91 rs t76 build!
start with 5 psi to get used to tuning and ****, then 10 psi after. Ill be worried when they break lol. Im doing a msd BTM unit.
Re: 91 rs t76 build!
OMG it runs! so far so good. going to start tuning tomorrow! so far my idle is at 13.0 which is rich i know. Sounds mean as hell! Also got to adjust my rocker arms a little more.
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: 91 rs t76 build!
any more pics of it finished? or install pics???
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: 91 rs t76 build!
intercooled? how much boost so far?
Member
Joined: Jul 2003
Posts: 141
Likes: 0
From: sw michigan
Car: 90 gta
Engine: 5.slow turbo
Transmission: tremec tko
Re: 91 rs t76 build!
i just got my turbo on and runing tonight. same thing, got it running but need to tune tomorrow, i still have my regular o2 sensor on it, i'm going to put the wide band on tomorrow and see if i can get some boost out of it.. i'll post more in my old post,, 305 turbo gta.
good luck to you!
good luck to you!
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: 91 rs t76 build!
i would like to see some more clearer pics of this setup..im working on a t76 .96 a/r single turbo setup as we speak...it will take some time before its done..........i already removed the roots blower, installed a new intake manifold and picked up the turbo.waiting on the rest of my parts to get here.
Re: 91 rs t76 build!
Umm i bought them off "turbo iroc" And i think he said that they were originally the ebay ones but he had to shorten them way down and modify a lot of stuff.
And yes ill be getting way more pics up and a video but tuning is very tough right now so im just working on that, soo they will be up soon
And yes ill be getting way more pics up and a video but tuning is very tough right now so im just working on that, soo they will be up soon
Supreme Member
Joined: Mar 2005
Posts: 1,665
Likes: 3
From: Benzie, MI
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: 91 rs t76 build!
Beautiful man. Got any better video? How's the low end torque off idle?
Supreme Member

Joined: Jul 1999
Posts: 1,773
Likes: 7
From: Panama City FL
Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: 91 rs t76 build!
Looking good... let's see some cruising videos asap! I'm trying to talk my friend into selling his centrifugal blower and doing the same thing to his 79 T/A. I think he's just about sold on the turbo idea! I'll show him your vids for motivation.
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: 91 rs t76 build!
looking good so far....reading all these threads inspired me to do this..........

btw im not trying to hijack your thread lol

btw im not trying to hijack your thread lol
Joined: May 2005
Posts: 972
Likes: 11
From: Winnipeg, Manitoba. Canada
Car: 1989 T-Top GTA
Engine: 5.7L TPI> 6.2L
Transmission: 700R-4
Axle/Gears: 3.27
Re: 91 rs t76 build!
Good job!!! You have bigger B*lls than most!!!!
Can't wait to see more videos....
Keep up the good work....
and don't hurt yourself in the meantime
Can't wait to see more videos....
Keep up the good work....
and don't hurt yourself in the meantime
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