Twin Turbo 400 Buildup- '89 Iroc-Z
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Joined: Dec 2005
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From: 53.0907° N, 113.4695° W
Thread Starter
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: Twin Turbo 400 Buildup- '89 Iroc-Z
No need to lock i guess if ppl have questions on the old setup or what not.
Joined: Feb 2000
Posts: 1,855
Likes: 13
From: St. Augustine, FL
Car: 89 GTA
Engine: 383
Transmission: 4L80E
Axle/Gears: 12 bolt-3.73
Re: Twin Turbo 400 Buildup- '89 Iroc-Z
So what is the max power you can put to the SHP block? For the price it looks like a good option for me, and i won't have to change cams since i can use the oem roller cam set-up.
Did the block die because of the power you pushed thru it or the damage from the turbo pieces or both? What if you had bought the SHP Pro which has billet caps and some other stuff.
Did the block die because of the power you pushed thru it or the damage from the turbo pieces or both? What if you had bought the SHP Pro which has billet caps and some other stuff.
Thread Starter
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: Twin Turbo 400 Buildup- '89 Iroc-Z
Imo since i found my reluctor wheel loose, it may have been detonating a tiny bit which walked the caps. Dead cylinder didnt help. I was on vp110 gas which also is low octane for the power. But bearings looked ok to me and not like detonation. Charlie made 1200+ whp and his caps moved alittle but mine on the dead cylinder moved alot
That said, and i believe charlie will confirm, 1000whp is very comfortable with turbo and safe tune with good internals
Bill cap pro block i would say 1200 max
That said, and i believe charlie will confirm, 1000whp is very comfortable with turbo and safe tune with good internals
Bill cap pro block i would say 1200 max
Last edited by Orr89RocZ; May 11, 2016 at 07:44 PM.
Thread Starter
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: Twin Turbo 400 Buildup- '89 Iroc-Z
lol likely. If i dont stop doing other things. Just no desire to finish car. I made alot of progress early then quit when fishing season started and summer ball. Will be out next yr for sure but could be out this fall winter all motor. Fuel system pieces and exhaust is whats holding me up i guess, then gotta wire car
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