L89 turbo build... Opinions please
05-06-2013, 01:34 PM
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Car: 1988 Iroc-Z
Engine: 350 TPI; Stock internals
Transmission: 700r4; TCI-CPVB; BW Hi-Frition
Axle/Gears: 4th gen 7.5 w/ 3:42 gear
L89 turbo build... Opinions please
Stock L89 bottom (will be upgrading to a splay capped, roller, 96 Vortec block w/ some flavor of mild alum heads... that'll be my project for down time)
L89 heads w/ springs & a good port job
LT1 intake
Rollin Thunder, Camshaft, Hyd, 1500-6500rpm,Adv Dur 296 Int/300 Exh, Valve Lift 0.539 Int/0.548 Exh, Lobe Angle 112deg,
Single Borg Warner turbo (rear mount in place of muffler) (still deciding on which turbo, suggestions are welcome)
I'm thinking 6-9lbs of boost will be fine.
What are your thoughts on power?
L89 heads w/ springs & a good port job
LT1 intake
Rollin Thunder, Camshaft, Hyd, 1500-6500rpm,Adv Dur 296 Int/300 Exh, Valve Lift 0.539 Int/0.548 Exh, Lobe Angle 112deg,
Single Borg Warner turbo (rear mount in place of muffler) (still deciding on which turbo, suggestions are welcome)
I'm thinking 6-9lbs of boost will be fine.
What are your thoughts on power?
05-06-2013, 01:52 PM
#2
Re: L89 turbo build... Opinions please
Definately no on the camshaft. I run similar duration in my near race only 400" motor. Go much smaller. Advertised around 268-276.
Borg warner would only work as rear mount if you get the smaller T4 flanged types with small housing. If thinking popular s400, s475, s480 those are all T6 and too large to spool at rear.
Borg warner would only work as rear mount if you get the smaller T4 flanged types with small housing. If thinking popular s400, s475, s480 those are all T6 and too large to spool at rear.
05-06-2013, 07:00 PM
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Join Date: Sep 2011
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Car: 1988 Iroc-Z
Engine: 350 TPI; Stock internals
Transmission: 700r4; TCI-CPVB; BW Hi-Frition
Axle/Gears: 4th gen 7.5 w/ 3:42 gear
Re: L89 turbo build... Opinions please
Humm... This would be my 1st gas turbo build so I'm still learning lol
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