How to size Tial wastegates?

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veovius
Posts: 32
Joined: Mon Nov 21, 2005 3:57 pm
Car: Black '95 240sx

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I keep hearing of 38mm, 41mm, etc wastegates from Tial. How do you figure out which sizes you need? How do you decide on a wastegate at all?


frsh13
Posts: 959
Joined: Sun Jan 16, 2005 8:31 am
Car: 1991 240sx coupe

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Depends on the type of manifold and amount of boost you will be running. For most setups I would say the TIAL 38mm wastegate is one of the best options. You also need to decide what strength boost spring to gate in the wastegate.

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nismofly
Posts: 12505
Joined: Sat Sep 04, 2004 3:16 pm
Car: 89 Nissan 240SX Hatch

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most setups use a 38 yeah

for the corresponding spring pressures, at tials website you go to the size your looking for, and theres a pdf with all the color-pressure ratings

veovius
Posts: 32
Joined: Mon Nov 21, 2005 3:57 pm
Car: Black '95 240sx

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thanks, one more piece of info to file away


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