1987 Supercharged TPI w/ megasquirt/complete repaint build thread
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From: Cleveland, Ohio
Car: 89' IROC-Z
Engine: LO3
Transmission: 700R4
Axle/Gears: 10-Bolt/2.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Member
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From: St.Amant, La.
Car: 1989 IROC
Engine: L98
Transmission: 700R4
Axle/Gears: 3.42 Auburn
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Yea uh drool x infinity. By far my favorite camaro ever built. Mainly cuz it's exactly what I wana do to my car.
Joined: Nov 1999
Posts: 1,790
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From: Monroe,NC
Car: 90 Formula
Engine: 305
Transmission: 700R4
Axle/Gears: 9 bolt/3.27
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Any chance you making it to the show at Hendrick Motorsports on Saturday? Can't wait to see this car in person.
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Here is a teaser pic(not washed good yet
) from our Toys for Tots Drive. I'm just happy to see it on the road!!!!
More build pics coming soon!!!
) from our Toys for Tots Drive. I'm just happy to see it on the road!!!!More build pics coming soon!!!
Joined: Aug 2009
Posts: 2,098
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From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
did you touch on those ttops, like how those rails were atttached or anything?
Supreme Member
Joined: Nov 2010
Posts: 1,074
Likes: 9
From: VA
Car: 88 camaro irocz
Engine: l98 tpi
Transmission: 700r4
Axle/Gears: 2.77
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Joined: Aug 2009
Posts: 2,098
Likes: 8
From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
custom made. everything on that car is custom made that isnt original to a thirdgen, appearance wise
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Joined: Mar 2009
Posts: 865
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From: simi valley, southern cali
Car: 92 Camaro Rs.R
Transmission: wc t-5
Axle/Gears: 3.42
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
picture that but in white with black wheels and it perty much my goal
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Thanks guys...
The roof rails are simply riveted to the t-tops. Earlier in the thread there are detailed pics of the front splitter. All custom made!
The roof rails are simply riveted to the t-tops. Earlier in the thread there are detailed pics of the front splitter. All custom made!
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
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Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread

<---Procharged L98 in the works.
Joined: Feb 2001
Posts: 752
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From: Westminster, MD USA
Car: 91 Firebird 'vert, 91 Formula
Engine: 5.7, 5.0
Transmission: T56, T5
Axle/Gears: Auburn w/ 3.73's, 3.42
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Awesome ride!
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Thanks...I PROMISE to update the thread in the next few days. Just been busy tied up with work
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Sorry for the lack of updates! I have gotten a few more things done, the body is 99% done(emblems and paint touch ups left) and have been working on bracing the Supercharger. It's not quite as firmly mounted as I would like, so we are working for solutions on that. Then I have to get the tune worked on some more and paint touch-ups from dentfix. Hope to do a 9" and custom gauges over the winter....
Anyway, here are some pictures of recent activity!
Installing the body work after getting it back from paint....





Anyway, here are some pictures of recent activity!
Installing the body work after getting it back from paint....





Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
After getting the normal stuff back on I moved to the wings and flaps!
Rear diffuser installed

Front splitter on(Has 5-6 brackets behind it that hold it on....)


Installing the side skirts. they were riveted on before, BUT I didn't like that so we installed some riveted in threaded inserts that allow both sides to be easily installed or removed if need be.


Done


Overall on the lift, but done shot...
Rear diffuser installed

Front splitter on(Has 5-6 brackets behind it that hold it on....)


Installing the side skirts. they were riveted on before, BUT I didn't like that so we installed some riveted in threaded inserts that allow both sides to be easily installed or removed if need be.


Done


Overall on the lift, but done shot...
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Coy(bananaman's son) and I made a bracket to bolt onto the supercharger and then bolt it to the Vortech to try and cut down on Supercharger movement. It helped, but we are looking at another option to add just a little more support. We also have a plate to put on the front of the blower pulley to try and keep it from walking off the front(even though we don't THINK it is....
Sorry for a couple blackberry pictures(Bracket is just installed. It will be removed for powder coating/paint soon
)......


Couple updated shots from the Toys for Tots cruise-in.



Sorry for a couple blackberry pictures(Bracket is just installed. It will be removed for powder coating/paint soon
)......

Couple updated shots from the Toys for Tots cruise-in.



Senior Member
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From: oklahoma
Car: 02wrx/88 rs
Engine: 2.0L turbo/nothing yet!
Transmission: 4eat/waiting on a t56
Axle/Gears: 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Any measurements of the hook yet? Lookin good!
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
No, but I will soon. Just been tied up a lot lately!
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From: oklahoma
Car: 02wrx/88 rs
Engine: 2.0L turbo/nothing yet!
Transmission: 4eat/waiting on a t56
Axle/Gears: 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
I know how that is. Thank you!
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Here ya go...
It's 11" long, 4.5" wide with a 2 3/4" hole in it. The hole is 1" from the front of the hook. It's attached by 3 bolts at the rear. Holes for these three bolts are drilled directly in the subframe(which required the front lip of it to be shaved away). I hope that helps.
BTW, your Forza car looks a LOT like mine. I am getting Froza for Christmas. Any way you can post some pictures of it or get it to me when I get my game set up?
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From: oklahoma
Car: 02wrx/88 rs
Engine: 2.0L turbo/nothing yet!
Transmission: 4eat/waiting on a t56
Axle/Gears: 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Here ya go...
It's 11" long, 4.5" wide with a 2 3/4" hole in it. The hole is 1" from the front of the hook. It's attached by 3 bolts at the rear. Holes for these three bolts are drilled directly in the subframe(which required the front lip of it to be shaved away). I hope that helps.
BTW, your Forza car looks a LOT like mine. I am getting Froza for Christmas. Any way you can post some pictures of it or get it to me when I get my game set up?
It's 11" long, 4.5" wide with a 2 3/4" hole in it. The hole is 1" from the front of the hook. It's attached by 3 bolts at the rear. Holes for these three bolts are drilled directly in the subframe(which required the front lip of it to be shaved away). I hope that helps.
BTW, your Forza car looks a LOT like mine. I am getting Froza for Christmas. Any way you can post some pictures of it or get it to me when I get my game set up?
Yeah I'm trying to make it how I want mine. Even down to the azure blue paint. I however don't want trim and other little things. As far as pictures go, I have lots on my phone that I can email you. Or I could try and put them on photobucket just pm me. I could next time I'm on, try and build your car on forza. Front splitter, 19s and maybe even the power. Maybe even tune it and send you the file when you get the game.
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From: oklahoma
Car: 02wrx/88 rs
Engine: 2.0L turbo/nothing yet!
Transmission: 4eat/waiting on a t56
Axle/Gears: 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
How thick is that plate?
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Thanks man....
Its 1/2" thick.
I'm a newbie at the game, so I'm sure my car would stink pretty badly. I'd love to have some pics and such.
pm sent with my email as well...
Its 1/2" thick.
I'm a newbie at the game, so I'm sure my car would stink pretty badly. I'd love to have some pics and such.
pm sent with my email as well...
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Joined: Sep 2009
Posts: 516
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From: Downers Grove, IL
Car: 91 Z28 / 04 GTO
Engine: GMPP 350 TPI / LS1
Transmission: WC T5 / T56
Axle/Gears: 3.23 / 3.46
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
I'll be on vacation until after the new year but you can pm me and I'll make/tune you a car if you want.
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Updating the thread with all of the wheel specs since I've had a few emails on them.
Front:
19x8 Auto Art 3 piece VY design front
1 3/4" lip
4" backspacing
fender height is 26 1/4"
275/35ZR19 Bridgestone Pontenza RE050
Rear:
19x10 Auto Art 3 piece VY design rear
3" lip
5.5" backspacing
fender height is 27"
295/35ZR19 Bridgestone Pontenza RE050
Front:
19x8 Auto Art 3 piece VY design front
1 3/4" lip
4" backspacing
fender height is 26 1/4"
275/35ZR19 Bridgestone Pontenza RE050
Rear:
19x10 Auto Art 3 piece VY design rear
3" lip
5.5" backspacing
fender height is 27"
295/35ZR19 Bridgestone Pontenza RE050
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Got the car back from Mayhem and have been working on the tune myself and it's going pretty well. I bad O2 was part of the reason I as having so much trouble with it! So, I'm going to do a little more then get it back to Mayhem and get it dialed in at WOT. Also, before that I want to make another brace. The one we have seems to be helping, but it still moves a little, so we are going to try and fab something from the bottom of the supercharger as well.
In other news for the Iroc I just picked up this COMPLETE LT1 T/A with a 6-speed. The 6-speed will be going in the Iroc along with a 9" rear!
I almost hate to take this car apart. Its a hard-top 93 T/A with 160k. It is original down to the airbox/exhaust/radio! Paint and drivers seat are a little rough, but besides a small skip sometimes(LT1s came with those from the factory) it runs GREAT!
In other news for the Iroc I just picked up this COMPLETE LT1 T/A with a 6-speed. The 6-speed will be going in the Iroc along with a 9" rear!
I almost hate to take this car apart. Its a hard-top 93 T/A with 160k. It is original down to the airbox/exhaust/radio! Paint and drivers seat are a little rough, but besides a small skip sometimes(LT1s came with those from the factory) it runs GREAT!
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From: St.Amant, La.
Car: 1989 IROC
Engine: L98
Transmission: 700R4
Axle/Gears: 3.42 Auburn
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
U might not want to use the 93 t56, I've heard they have some quirks to them. It could just be hearsay but id do my research before I tore the 93 apart.
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
They have different gear ratios(lower which is OK) and thus the reason they were rated at a lower horsepower than the 94 and later. Other than that they are the exact same. Since I am staying with low(numerically) gearing I won't mind the slightly lower geared 6th gear.
IF anyone has any other input that is great, but I'm 99% sure I'm correct!
IF anyone has any other input that is great, but I'm 99% sure I'm correct!
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Posts: 315
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From: St.Amant, La.
Car: 1989 IROC
Engine: L98
Transmission: 700R4
Axle/Gears: 3.42 Auburn
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Buddy told me they were weaker and were different in ways, guess its bs.
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From: Cleveland, Ohio
Car: 89' IROC-Z
Engine: LO3
Transmission: 700R4
Axle/Gears: 10-Bolt/2.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
LS1Tech, Tech Addict (and the masses)
"The gear ratio is the only difference and that is what makes the later version stronger."
It seems the 93 gear ratio's are much more desirable though. From the quick search I did I've seen comments of a Caprice pushing 450-500 having no problems with the 93 T56.
"The gear ratio is the only difference and that is what makes the later version stronger."
It seems the 93 gear ratio's are much more desirable though. From the quick search I did I've seen comments of a Caprice pushing 450-500 having no problems with the 93 T56.
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Yes, basically ONLY the gear ratios are different and they are actually geared closer together than the later ones... Now I need a conversion flywheel 
Thanks man

Thanks man
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Joined: Nov 1999
Posts: 1,790
Likes: 22
From: Monroe,NC
Car: 90 Formula
Engine: 305
Transmission: 700R4
Axle/Gears: 9 bolt/3.27
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Maybe in the LT1, how much you asking?
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
No idea honestly. The car is still running and driving now. I may drive it for a little while, who knows.
If I part it you will be first in line for the LT1. Need wiring, ECM, or just the engine itself?
If I part it you will be first in line for the LT1. Need wiring, ECM, or just the engine itself?
Joined: Nov 1999
Posts: 1,790
Likes: 22
From: Monroe,NC
Car: 90 Formula
Engine: 305
Transmission: 700R4
Axle/Gears: 9 bolt/3.27
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
I'll be looking for everything needed to perform a swap on a third gen if I go the LT1 route... let me know
Joined: Aug 2009
Posts: 2,098
Likes: 8
From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
it runs on gas
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From: Cleveland, Ohio
Car: 89' IROC-Z
Engine: LO3
Transmission: 700R4
Axle/Gears: 10-Bolt/2.73
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
runs well on 93!!
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Thread Starter
Joined: Dec 2000
Posts: 1,954
Likes: 68
From: NC
Car: 1987 Iroc
Engine: 357 Single plane and a Ysi vortech
Transmission: T56
Axle/Gears: 3.50 9"
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Yeah, but honestly I havent put a tank through it yet without kicking it or tuning it yet. I will let you know though!
Member
Joined: Feb 2010
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From: rittman,ohio
Car: 82 camaro berlinetta (z28clone)
Engine: gmpp 350,edelbrock,msd,k&n
Transmission: stage 2 maddog 700r4
Axle/Gears: motive gear 4.10/ eaton posi
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
man i haven't been on tgo for a while. very nice build man...i love the racing/road course style...something different. nasty motor...would be sweet to see a video of this car in action. great job again
Joined: Aug 2009
Posts: 2,098
Likes: 8
From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
Member
iTrader: (10)
Joined: Dec 2010
Posts: 335
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From: nc
Car: 92 firebird
Engine: 305 tpi "stock"
Transmission: slipping
Axle/Gears: 3.42 posi disk brakes!
Re: 1987 Supercharged TPI w/ megasquirt/complete repaint build thread
got a kick out of it myself although a propane 700 hp motor would be cool lol









