sts turbo and heads HELP!!
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Staging Lane
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Joined: Oct 2006
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From: Azusa, California
sts turbo and heads HELP!! Hi, I'm gonna install a sts turbo on my car, currently i have patriot stage two heads on my car. I was wondering would the increase of the compression from 10.1 to 10.5 increase the chances of me blowing up my engine? also only gonna run 6psi max.
Head specs
Combustion Chamber: 64cc
Intake Runner: 227cc
Exhaust Runner: 70cc
Intake Valve: 2.02"
Exhaust Valve: 1.57"
Max. Valve Spring Lift: 0.650"
Spring Pressure Closed: 135 lbs. @ 1.800"
Spring Pressure Open: 375 lbs. @ 1.090"
Retainer Material: Titanium
Valve Seal Material: Viton
Valve Guide Material: Manganese Bronze
Valve Job: 5-angle
Head specs
Combustion Chamber: 64cc
Intake Runner: 227cc
Exhaust Runner: 70cc
Intake Valve: 2.02"
Exhaust Valve: 1.57"
Max. Valve Spring Lift: 0.650"
Spring Pressure Closed: 135 lbs. @ 1.800"
Spring Pressure Open: 375 lbs. @ 1.090"
Retainer Material: Titanium
Valve Seal Material: Viton
Valve Guide Material: Manganese Bronze
Valve Job: 5-angle
Hi, I'm gonna install a sts turbo on my car, currently i have patriot stage two heads on my car. I was wondering would the increase of the compression from 10.1 to 10.5 increase the chances of me blowing up my engine? also only gonna run 6psi max.
Head specs
Combustion Chamber: 64cc
Intake Runner: 227cc
Exhaust Runner: 70cc
Intake Valve: 2.02"
Exhaust Valve: 1.57"
Max. Valve Spring Lift: 0.650"
Spring Pressure Closed: 135 lbs. @ 1.800"
Spring Pressure Open: 375 lbs. @ 1.090"
Retainer Material: Titanium
Valve Seal Material: Viton
Valve Guide Material: Manganese Bronze
Valve Job: 5-angle
Head specs
Combustion Chamber: 64cc
Intake Runner: 227cc
Exhaust Runner: 70cc
Intake Valve: 2.02"
Exhaust Valve: 1.57"
Max. Valve Spring Lift: 0.650"
Spring Pressure Closed: 135 lbs. @ 1.800"
Spring Pressure Open: 375 lbs. @ 1.090"
Retainer Material: Titanium
Valve Seal Material: Viton
Valve Guide Material: Manganese Bronze
Valve Job: 5-angle
The increase in compression will help the rear mount to spool. Wrapping your entire exhaust system ahead of the turbo with header/exhaust wrap will help the turbo to spool sooner too. Bob
running lower compression for higher boost is kind of miss leading... Rather, pick a HP goal, and run as high compression as you can to achieve that number without detonating. That being said, you should be okay at 6psi. But the tune will be key
There is a twin turbo stock LS6 making 700rwhp @13lbs running a very conservative tune that has lasted multiple race seasons. When I mean stock I mean never had a valve cover off. He runs methanol injection, very conservative timing and a AFR in the 10.5 range.
Not recommending you shoot for 700rwhp but just an example of 10.5 compression and forced induction being compatible.
Not recommending you shoot for 700rwhp but just an example of 10.5 compression and forced induction being compatible.
There is a twin turbo stock LS6 making 700rwhp @13lbs running a very conservative tune that has lasted multiple race seasons. When I mean stock I mean never had a valve cover off. He runs methanol injection, very conservative timing and a AFR in the 10.5 range.
Not recommending you shoot for 700rwhp but just an example of 10.5 compression and forced induction being compatible.
Not recommending you shoot for 700rwhp but just an example of 10.5 compression and forced induction being compatible.
Trending Topics
http://www.turbotechnologyinc.com/site/?page_id=7
Chris Stewart
TTiX @ 13psi, Bone Stock LS6
717rwhp/677rwtq, Dyno Video, 9.76@142.76, 1.51 60'
9.7@142 In-Car Video
He's on this forum username chris stewart.
Last edited by mike13; Feb 22, 2010 at 11:04 PM.
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Verdad Gallardo elias 799 I know the guy with the stock LS6 and if I didn't see it for myself I wouldn't have believed it. He runs his car on dyno days, races through out the season, I'm amazed.
i have also seen people floating valve springs at 8 psi on 10.25:1 CR
so you tell me how this guy is boosting his 10.25:1 CR motor at 13 psi and not floating anything
did you see the stock springs with your own eyes ?
so you tell me how this guy is boosting his 10.25:1 CR motor at 13 psi and not floating anything
did you see the stock springs with your own eyes ?
Believe what you want.
