Boost creep?

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03-31-2004, 05:21 PM

y49crxsi

1.5 BAR

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Join Date: Feb 2003

Posts: 728

Boost creep?

Well, i searched and check teh faq's, but what exactly is, and what causes boost creep. and is it any different than boost spike. After reading how a guy blew his motor becuase of a boost spike, im trying to avoid any situations where this might happen. Any info is appreciated, thanx.

03-31-2004, 05:22 PM

turboboy

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Re:Boost creep?

creep is when the wastegate cant flow enough to keep the boost down. happens a lot with big turbos and small internal gates.

03-31-2004, 05:33 PM

y49crxsi

1.5 BAR

Thread Starter

Join Date: Feb 2003

Posts: 728

Re:Boost creep?

Ahhhh, so i really shouldnt worry about it on an internally wastgated ihi, where the stock exhaust size is like 1.75", lol. ITs tiny.

03-31-2004, 05:42 PM

turboboy

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Re:Boost creep?

you never know, talk to others with them, it matters more how well the wg flows

03-31-2004, 06:22 PM

Chacko

1.5 BAR

Join Date: Dec 2002

Posts: 1,495

Re:Boost creep?

Porting out the wastegate helps a little but as far as I thought, boost creep was the reverse of a spike isn't it? Its where the turbo can't hold a consistent pressure and slowly "leaks" boost away. Because of how sensitive the actuators are on the internal wastegates?