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Changing Wastegates

Old 02-09-2004, 08:43 AM
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This goes along with my last post about modifing or replacing my wastegate.

My Apexi single setup came with a 52 mm racing wastegate. Does anybody know what changes I'm looking at in performance by going to a 46mm wastegate. I've been told that too small of a gate will cause boost creep and too large of one will cause lag. The problem is, I don't know what's too big or too small for my setup.



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Old 02-09-2004, 10:06 AM
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I don't think too big will cause lag. (Did you get a reason why?) It potentially could be hard on the wastegate itself, as it will have to cycle open and closed more frequently.
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Old 02-09-2004, 10:18 AM
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Yeah lag isn't really related to the size of the wastegate, but you can get boost creap with a wastegate thats too small.



Edit: just re-read your original post. Really my best opionion is just don't drive it hard in bad weather if you want more control of the car and boost. Easier way and I talk from experience with that turbo and others, use the gas pedal to control boost.
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Old 02-09-2004, 11:54 AM
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Where I got the turbo lag from was an article on the net from one of the makers on how to choose the correct wastegate. I didn't think that the lag would be increased by the wastegate.



One of the big reasons I also wanted to lower the boost for normal driving is I have a problem with "right foot control". My foot is too heavy and I like the power. My wife is with 1/2 the time while driving. I get a lot of grief over my speed from her if you know what I mean.



Thanks!
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