HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
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Posts: 262
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From: Des Moines, Iowa
Car: 89 Formula
Engine: Nada - v4.0
Transmission: Nada - v3.0
Axle/Gears: Nada - v3.0
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
So Bruce, am I close with my assumption?
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
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Posts: 857
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
I gotta know where to get those rear end brackets!
Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Looks like the braketry that Detroit speed using on their rear suspensions, cant link the pictures though
http://detroitspeed.com/1970-1981-F-...ADRALink.html#
http://detroitspeed.com/1970-1981-F-...ADRALink.html#
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Posts: 268
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Car: 86 Turbo Camaro
Engine: 427LSX
Transmission: 4L80E
Axle/Gears: 9" 3:25
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
The engine bay and header/turbo placement is great... Very nice work..
The intercooler pipes and layout for the cold side could have been thought out a bit better... A lot could change and be better for room and over all air flow through the system.....
Love the color.. it'll be sharp!
The intercooler pipes and layout for the cold side could have been thought out a bit better... A lot could change and be better for room and over all air flow through the system.....
Love the color.. it'll be sharp!
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Posts: 857
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From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Senior Member
iTrader: (4)
Joined: Oct 2008
Posts: 857
Likes: 5
From: Niles, IL
Car: '91 LS6/T56/9"
Engine: LS6
Transmission: T56
Axle/Gears: Currie 9"/4.11, detroit truetrac
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Looks like the braketry that Detroit speed using on their rear suspensions, cant link the pictures though
http://detroitspeed.com/1970-1981-F-...ADRALink.html#
http://detroitspeed.com/1970-1981-F-...ADRALink.html#

Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Senior Member



Joined: Jun 2005
Posts: 691
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From: Owasso, OK
Car: 87 iroc
Engine: 410 sbc
Transmission: tremec 3550
Axle/Gears: 30 spline 3.73
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
oh how this makes me want to go out and change/work on my car.
Joined: Jan 2002
Posts: 757
Likes: 10
From: Middle of MI
Car: 1989 Trans Am GTA
Engine: Stock LS1
Transmission: T56
Axle/Gears: 3.70 9 bolt
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
huh, thought I subscribed to this last time I saw it. Anyways, love the craftsmanship, wish that either I could do this, or afford to have someone do it to my car.
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From: Waxahachie Texas
Car: 88 IROC Z/28-under re-construction
Engine: 5.7 Tuned Port
Transmission: It's in there....
Axle/Gears: 9 bolt Borg-Warner
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
SUB......
Senior Member

Joined: Apr 2001
Posts: 798
Likes: 3
From: Powder Springs, Georgia, USA
Car: 1992 Black Z28 Hardtop
Axle/Gears: 2002 10 bolt w/3:23
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Oh yeah, but that black '89 Formula 350 with the S/C LS in the COTM column set the guy back over $50,000. Too much for my pocket. But none the less it is one gorgeous 'bird. Would I do it if I could afford it, in a New York minute I would. Too much is only dictated by what you can and are willing to afford. Yep I'd love to give the guys my "Z" and a blank check and say do it. Oh well, I love this stuff, and Bruce what you and your guys and gals are doing is awesome. Keep bringing us this level of custom work and we will keep following you.
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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: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Updates?
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From: Edmonton, Alberta.
Car: 1988 Pontiac Trans Am GTA.
Engine: 385 stroker sbc
Transmission: TKO600
Axle/Gears: Moser 9" 3.70 Wavetrac
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
So slick!
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Is this rear end combonation going to be available through Hawks to narrow your suspension or is that just a one off deal?
Joined: Oct 2001
Posts: 12,211
Likes: 1,135
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
I would have kept it black buuut that wouldnt have set off the jewelry under the hood as well.
Also like the original front bumper but it will look killer when ur done!
Cant wait to see it.
Also like the original front bumper but it will look killer when ur done!
Cant wait to see it.
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From: Mason, Michigan
Car: 1990 GTA
Engine: 5.7L TPI SLP Runners Accel 24lb Inj
Transmission: 700R4 Upgraded Internals, Shift Kit
Axle/Gears: Borg Warner 9 Bolt, 3.27 Ratio
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
this is a sick build. curious where Bruce came up with the green color for the plumbing, never seen it before
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Poss. this. I use it on pistons , valves , turbo stuff also.
http://www.cerakotehightemp.com/fini...oat-oven-cure/
Usually black but have dome some green
Joined: Jul 2006
Posts: 1,278
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From: Rochester NY
Car: 1984 TA (1 stock / 1 custom)
Engine: LG4 / turbo LQ4
Transmission: 700R4 / 4L80E
Axle/Gears: Stock / 3:50 Moser 9"
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
More updates please - it's been a couple months.
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Posts: 1,237
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From: Apopka, Florida
Car: 1989 Pontiac Trans Am GTA
Engine: cammed LS1
Transmission: Monster SS 4L65E
Axle/Gears: 9 bolt posi w/ 3.70 gears
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Mock up of the suspension & brakes. The wheels are for mock up, we will do a forged BOZE or Forgeline wheel, haven't decided yet. It will have 335 or 345 tires on the back though for sure, thoughts on the stance?
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Attachment 344325
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Joined: Jan 2009
Posts: 887
Likes: 17
From: Golden, CO
Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: HAWKS 408ci LSX Twin Turbo Convertible Formula Build w/ Pics
Not sure on the wheel width, but the tires are 335, so the wheel is likely 12.5", perhaps wider.
No, those are not the stock wheel tubs. Typically 285-295 is the widest tire in the factory tub. Also note: 1) how skinny the left frame rail is. 2) they are using coil overs in the stock shock location. 3) coil over springs are smaller diameter than factory springs. 4) A larger diameter springs nothing to sit on, 5) because the factory spring perch was removed along with the "outer frame rail" / layers of steel that normally run between the factory spring and tire, and supports the bumpstop.
No, those are not the stock wheel tubs. Typically 285-295 is the widest tire in the factory tub. Also note: 1) how skinny the left frame rail is. 2) they are using coil overs in the stock shock location. 3) coil over springs are smaller diameter than factory springs. 4) A larger diameter springs nothing to sit on, 5) because the factory spring perch was removed along with the "outer frame rail" / layers of steel that normally run between the factory spring and tire, and supports the bumpstop.
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