Project: "BTA" Boosted Trans Am.....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Project: "BTA" Boosted Trans Am.....
Okay guys, I'll be updating this thread in the coming days/weeks, but basically we're building a '92 Pontiac F-Body in which originally came equipped with a 3.1 automatic (manual pending, if unable to get the stall that we need). We just now received the GT66 turbo charger through UPS, and was initially waiting for this very thing before we began embellishing on this journey. Why, "journey", you ask (smile), well, let's just say that twelves has already been done, and elevens, well, is kinda boring..... 
I'll be posting pictures of the process so far later on tonight. Noah, I didn't forget about you buddy, the pictures will also include Dave's STB as well. Just recently finished installing both a vacuum/psi gauge, along with an AFR gauge (carbon fiber units), and Grant GT steering wheel. Ram Air 1 hood was also just added, with the notchback being installed either later on today, or tomorrow. ECM control is still up in the air, but that's later on. All engine work will be greatly detailed as well, absolutely no secrets.....
Stay tuned.....

I'll be posting pictures of the process so far later on tonight. Noah, I didn't forget about you buddy, the pictures will also include Dave's STB as well. Just recently finished installing both a vacuum/psi gauge, along with an AFR gauge (carbon fiber units), and Grant GT steering wheel. Ram Air 1 hood was also just added, with the notchback being installed either later on today, or tomorrow. ECM control is still up in the air, but that's later on. All engine work will be greatly detailed as well, absolutely no secrets.....

Stay tuned.....
Re: Project: "BTA" Boosted Trans Am.....
was wondering when u were gonna finally post up the project.
but anyways this car will be the fastest turbo 3.1 f-body to date.This car will have many advantages over what mine did and will be sure to turn heads everywere.
but anyways this car will be the fastest turbo 3.1 f-body to date.This car will have many advantages over what mine did and will be sure to turn heads everywere.
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From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: Project: "BTA" Boosted Trans Am.....
Sounds cool. I will have my friend watch this thread because he has a v6.
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Just to give you an idea of what we are originally working with, here is a pic of the car in it's bone stock form. Nothing has been added or removed since it's release in late '91 (save for the mileage). Bone stock 3.1 automatic, T-Tops and A/C.....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Just a few more, so you'll be able to see the differences later on.....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Update....
Here are a few more pics with some recent additions such as; a Ram Air One Hood, 16" Formula Rims w/255's out back, and 225's up front, Kenwood CD system, Grant "GT" steering wheel and dual gauge pod w/AutoMeter Boost/Vacuum & AFR gauges.....
Here are a few more pics with some recent additions such as; a Ram Air One Hood, 16" Formula Rims w/255's out back, and 225's up front, Kenwood CD system, Grant "GT" steering wheel and dual gauge pod w/AutoMeter Boost/Vacuum & AFR gauges.....
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Supreme Member
iTrader: (7)
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: Project: "BTA" Boosted Trans Am.....
Should look pretty cool when you are done with it. If my car wasn't a formula, I would get an aftermarket hood, and blackouts and get a custom paint. But, I want to leave my car the way it is as a sleeper. If I do repaint it, I will get it painted the same with the same decals and everything.
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
I hear ya Bullydawg, but the stock hood is way too heavy for the 3.1. This project is going to get quite the reduction in weight, lemme tell ya.... 
As for Formula's, that's my next project. In fact, this is where Project "BTA" received those rims from....

As for Formula's, that's my next project. In fact, this is where Project "BTA" received those rims from....
Re: Project: "BTA" Boosted Trans Am.....
Street, those pics are really small
.
Give you props, but you have an unfair advantage over me...
YOU HAVE DAVE HELPING!!!
Fastest 3.1, but my 3.4/3400 hybrid is finally moving
What's your ETA on the BTA?
.Give you props, but you have an unfair advantage over me...
YOU HAVE DAVE HELPING!!!
Fastest 3.1, but my 3.4/3400 hybrid is finally moving

What's your ETA on the BTA?
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
The pictures above are captions from Streetfire.net. I had no other way to pull pics from one of my DVD's, so I had Streetfire host the very small video's for me, then pulled a caption to link for you guys here. The video's are only seconds long, but if you would like to check them out before I start posting larger pics, I'll provide ya's with some links. 
Ram Air One Hood
16" Formy's w/255's Out Back
Grant "GT" Steering Wheel, Kenwood Stereo System, Dual Gauge Pod w/AutoMeter Vac/Boost & AFR Gauges
GT66 Turbo Charger Lying in Wait, A/C System Completely Removed....
Again, these video's were never meant to be watched. I just wanted to try and "image grab" some pics for ya, just until my other cam is ready.....

Ram Air One Hood
16" Formy's w/255's Out Back
Grant "GT" Steering Wheel, Kenwood Stereo System, Dual Gauge Pod w/AutoMeter Vac/Boost & AFR Gauges
GT66 Turbo Charger Lying in Wait, A/C System Completely Removed....
Again, these video's were never meant to be watched. I just wanted to try and "image grab" some pics for ya, just until my other cam is ready.....
Last edited by Street Lethal; Jun 6, 2007 at 07:52 AM.
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by firstfirebird
What is the ETA? Are you going to be able to get some runs in this season?
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by firstfirebird
Give you props, but you have an unfair advantage over me. YOU HAVE DAVE HELPING!!!

I personally need to give props to my cousin Gaspar the tech guru, who's been modifying GM cars for years. Dave is pretty much building the custom turbo system for me, as well as the head work, UIM and LIM. Both guys are helping me out tremendously w/making Project BTA happen....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by noahTHEpurdy
Any pic's of Dave's STB yet? Lol.
Re: Project: "BTA" Boosted Trans Am.....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by daves12secV6
3.1/hybrid/3400 all the same this thing will be badass
Also, what people don't realize just yet is the tremendous amount of weight being eliminated from the vehicle. In terms of power-to-weight, cubic inch displacment soon becomes irrelevant when running a turbo. Yes, you'll make more power on the dynojet with more cubic inch displacement, but 9 or 10 seconds in the quarter mile is still 9 or 10 seconds in the quarter, either way you slice it.....

-G
Re: Project: "BTA" Boosted Trans Am.....
#1 expected weight of robs car is to be approx 1,200 pounds lighter then mine
#2 i made alot of compromises with my car on everything from tunning to suspension due to the fact i had to drive this car everyday.from what ive gone over with rob there wont be any compromises on anything
#3 this thing will be tuned the right way by way of ecm tuning
#4 robs turbo is suited more to all out hp/drag were mine was a street/strip setup,his is also capable of approx 725 hp =/-
#5 i learned form my mistakes on my setup which will be greatly improved apon with robs mainly the foward facing headers
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Here's a better shot of the wheels that I decided to go with. Coming from a stock '91 Formula, these 16" rims will do extremely well. Again, 255 out back, and 225 up front. However, in the coming weeks, 275's will definitely need to find their way on there very very soon. Also provided a close up of the carbon fiber Auto-Meter gauges that I went with.....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by noahTHEpurdy
Awesome! Can't wait bud!

Not being too big a fan of da "bling bling" lol, I painted it black....
...it's also not installed yet, but it easily clears the hood.
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by daves12secV6
umm rob
u have it backwards 
u have it backwards 
Re: Project: "BTA" Boosted Trans Am.....
ohh lol i though u had it bolted on like that
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btw check ur pms on ls1.com
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btw check ur pms on ls1.com
Last edited by daves12secV6; Jun 10, 2007 at 05:45 PM. Reason: Automerged Doublepost
Thread Starter
Joined: Jul 2003
Posts: 10,521
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From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by daves12secV6
ohh lol i though u had it bolted on like that
Re: Project: "BTA" Boosted Trans Am.....
btw guys if u look at that pic u will see that u do not need an idler pulley to remove the ac,u can remove the bracket and compressor and just run a shorter belt.u can do the same with the idler/smog pump as well
Re: Project: "BTA" Boosted Trans Am.....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by daves12secV6
btw guys if u look at that pic u will see that u do not need an idler pulley to remove the ac,u can remove the bracket and compressor and just run a shorter belt. u can do the same with the idler/smog pump as well....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Well it's been solidified, we're going 4000 stall. Here's a pic of the 5-speed that may just find it's way onto the project later on, but for this particular season, no damn lag allowed....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Some more pictures of the turbo charger. She looks pretty damn lonely, don't ya think? Hehe, not for long though....
Re: Project: "BTA" Boosted Trans Am.....
My guage pod looks exactly like that
except my boost it on top.
I've been trying to tell people that all along, you would have to reverse the wrap on the waterpump/crank to get rid of the smog.
Man seeing that A/C gone makes lots of room for some turbo headers. If I didn't live in FL, I would ditch the A/C in a heartbeat (it's 1.5hrs to the track each way
)
except my boost it on top.
btw guys if u look at that pic u will see that u do not need an idler pulley to remove the ac,u can remove the bracket and compressor and just run a shorter belt.u can do the same with the idler/smog pump as well
Man seeing that A/C gone makes lots of room for some turbo headers. If I didn't live in FL, I would ditch the A/C in a heartbeat (it's 1.5hrs to the track each way
) Re: Project: "BTA" Boosted Trans Am.....
hey rob u shoudl add a link in the poweradder section to this thread as well im sure some of the guys from over there would enjoy the build proccess
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Last pic for the night, something that every 3.1 turbo builder needs to have. It's mandatory!!!! A "Precision Turbo" banner in their home garage. Yup, it's fun for the whole entire family. Yeah, and even the wife enjoys it, too.....

Before anyone asks, that's my spare 3.1 w/5-speed....

Before anyone asks, that's my spare 3.1 w/5-speed....
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Damn thing has been sitting in my trunk for weeks LOL. Finally decided to just put it up for crying out loud....
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From: Pittsburgh, PA
Car: 1992 Pontiac Firebird
Engine: 3.1
Transmission: 700R4
Axle/Gears: 3.42 Auburn Posi
Re: Project: "BTA" Boosted Trans Am.....
offhand i donno just yet, i need to check inventory at work to see if i have the materials/hiem joints in stock,if not ive got to get a price quote on said materials before i can give anyone a price
dam rob i figured u would have updated this by the time i got back home lmao
dam rob i figured u would have updated this by the time i got back home lmao
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by daves12secV6
dam rob i figured u would have updated this by the time i got back home lmao...
Re: Project: "BTA" Boosted Trans Am.....
ahhhhh oh btw remeber that porsche from e-town the video is online,lemme grab the link for ya
----------
http://media.putfile.com/EVOMS-967-1
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http://media.putfile.com/EVOMS-967-1
Last edited by daves12secV6; Jun 10, 2007 at 09:07 PM. Reason: Automerged Doublepost
Re: Project: "BTA" Boosted Trans Am.....
Looks like I'v got to get cracking again. One more bedroom to re-do the flooring in and...
Well anyway, I wish I had some "gearhead" friends that weren't miles away on the internet to work on stuff with me
. Can't wait to see what you are doing with this project!
The crank I just got delivered is shot...
Click Here
Well anyway, I wish I had some "gearhead" friends that weren't miles away on the internet to work on stuff with me
. Can't wait to see what you are doing with this project!The crank I just got delivered is shot...
Click Here
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by daves12secV6
ahhhhh oh btw remeber that porsche from e-town the video is online,lemme grab the link for ya
----------
http://media.putfile.com/EVOMS-967-1
----------
http://media.putfile.com/EVOMS-967-1
Thread Starter
Joined: Jul 2003
Posts: 10,521
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: Project: "BTA" Boosted Trans Am.....
Originally Posted by firstfirebird
The crank I just got delivered is shot...







