boost problem
10-01-2007, 08:18 AM
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boost problem
ok i have a built b18b block fully built b16 head ...bla bla bla ...etc..my turbo set up is a drag manifold tail waste gate s300 etc..the turbo is a bull$h*t turbo but brand new its a ar/70 intake and a ar/85 exaust ..what could be the reason that it doesnt produce boost ...the turbo will only make 5 pounds nothing more.tryed running on just the gate 10 pound spring wont go passed 5 ..no vac leaks ..boost controller is daul stage and brand new ..what could be the problem ...turbo or motor..thanks...
10-01-2007, 08:26 PM
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Re: boost problem (jlows923d)
I suggest getting a map for your turbo and checking your BSFC and doing the math to see what your main problem, sounds like too big to me. Try adding a 60 shop, it will spool.
10-01-2007, 10:10 PM
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Re: boost problem (JaredKaragen)
i would think it was the turbo ar/85 exaust i think is way to big i was thinking my self go with a ar/70 intake and a ar/60 exaust ...i dunno never had this problem before anything else it could be...
10-02-2007, 07:33 AM
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Re: boost problem (jlows923d)
I suggest getting a map for your turbo and checking your BSFC and doing the math to see what your main problem, sounds like too big to me. Try adding a 60 shop, it will spool.
expalin what ya mean bye map.and checking my bsfc....thanks
expalin what ya mean bye map.and checking my bsfc....thanks
10-02-2007, 08:37 AM
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Re: boost problem (jlows923d)
he menas get a flow map of the turbo and find what rpm range it fully spools up in. I think the turbine might be too big and requires more exhaust gas to flow properly(ex. probably a turbo meant for a supra or 6 cylinder vehicle).
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