May 2017 COTM **Winner**
Thread Starter
COTM Editor (Retired)
Joined: Aug 2009
Posts: 1,884
Likes: 83
From: Washington
Car: 89 Formula 350, TTA
May 2017 COTM **Winner**
"One-off", "originality", and "f-ing killer" are terms that get thrown around...
but this car defines those terms. And although I don't think I've ever personally used it, the word "gnarly" also comes to mind.
Congratulations, Twin_Turbo! I'm proud to announce that your uniquely one-off, killer '87 IROC-Z is TGO's May 2017 Car of the Month.
BTW, i love the seemingly bare metal finish on the supercharger and suspension parts.
Mine is a complete ground up rebuild. Nothing has been left as is. In fact it's an all new car almost and has a new speedo with only a couple miles on it now.
The idea behind this one was to build a semi 80s correct car with a lot of upgrades. That's why it has 80s super rare jongbloed aero 3 pc wheels. An 80s prototype mcfarland intake (only a couple exist. I have the complete test mule) 80s black interior (original was ugly cloth) etc. The supercharged engine had to fit under the stock hood. It took quite a bit of fiddling to get everything crammed in there.
The brakes are j55... 80s
I have a detailed build thread describing most of what has been done.
https://www.thirdgen.org/forums/memb...t-my-87-a.html (Pulling apart my 87 IROC)
Engine is a 355 wuth tfs g1 heads custom pushrods and crane rockers. Custom valve covers. Mcfarland short ram. Custom fuel setup using mostly aeromotive parts. Ati damper. Modified hedman headers. Custom built serpentine drive with home made brackets. Custom p600b mounting.
Runs on modified code 33 with intercooler pump control has backup control via hobbs switch.
a lot of stuff was modified or hand built. Custom stuff includes the exhaust, subframe connectors, engine intercooling etc.
recently had a full down to metal repaint using only spies hecker for quality and durability.
The idea behind this one was to build a semi 80s correct car with a lot of upgrades. That's why it has 80s super rare jongbloed aero 3 pc wheels. An 80s prototype mcfarland intake (only a couple exist. I have the complete test mule) 80s black interior (original was ugly cloth) etc. The supercharged engine had to fit under the stock hood. It took quite a bit of fiddling to get everything crammed in there.
The brakes are j55... 80s
I have a detailed build thread describing most of what has been done.
https://www.thirdgen.org/forums/memb...t-my-87-a.html (Pulling apart my 87 IROC)
Engine is a 355 wuth tfs g1 heads custom pushrods and crane rockers. Custom valve covers. Mcfarland short ram. Custom fuel setup using mostly aeromotive parts. Ati damper. Modified hedman headers. Custom built serpentine drive with home made brackets. Custom p600b mounting.
Runs on modified code 33 with intercooler pump control has backup control via hobbs switch.
a lot of stuff was modified or hand built. Custom stuff includes the exhaust, subframe connectors, engine intercooling etc.
recently had a full down to metal repaint using only spies hecker for quality and durability.
Joined: Dec 2001
Posts: 9,937
Likes: 636
From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: May 2017 COTM **Winner**
Congrats Twin_Turbo! Your cars are so well crafted. Way past due!
Trending Topics
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: May 2017 COTM **Winner**
Thanks guys
I'm really honored that my build is so well received even with choices that I know most others wouldn't choose or do differently.
I'm really honored that my build is so well received even with choices that I know most others wouldn't choose or do differently.
COTM Editor
iTrader: (11)
Joined: Mar 2006
Posts: 4,098
Likes: 13
From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: May 2017 COTM **Winner**
Congrats man!
Joined: Jun 2006
Posts: 2,444
Likes: 75
From: Plant City, FL
Car: 1991 Firebird
Engine: 3.1L V6
Re: May 2017 COTM **Winner**
- Jim
Joined: Mar 2014
Posts: 4,553
Likes: 806
From: South Ms
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: May 2017 COTM **Winner**
Well deserved. You can tell a lot of hard work went into it and it shows.
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: May 2017 COTM **Winner**
A little overview vid
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: May 2017 COTM **Winner**
