Need help choosing correct wastegate springs
#1
Major RX-7 Withdrawals
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Need help choosing correct wastegate springs
I just ordered a fully divided turbo manifold with dual wastegate runners. I'll be running dual Tial 38mm's, but I am a little confused on which springs I need to run in both. Will both wastegates see the total amount of boost (~23 psi), therefore needing the larger springs, or will both wastegates see only half the boost (~12 psi), needing only the smaller spring?
#3
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Originally Posted by Turbo_Rotary
I just ordered a fully divided turbo manifold with dual wastegate runners. I'll be running dual Tial 38mm's, but I am a little confused on which springs I need to run in both. Will both wastegates see the total amount of boost (~23 psi), therefore needing the larger springs, or will both wastegates see only half the boost (~12 psi), needing only the smaller spring?
Most select a spring based on the stiffest one they can run while stiff being able to run the lowest setting of boost desired. i.e. if you want to run 16-23psi of boost then get a 13-15psi spring. Assuming you are using a boost controller. Or, if not, just get a 20-22psi spring and use the adjustment screw on the top to tune it in.
Justin
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07-17-19 02:20 PM