3sgte knock and boosting |
3sgte knock and boosting |
Jul 1, 2011 - 3:42 AM |
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Enthusiast Joined Aug 13, '08 From Australia Currently Offline Reputation: 7 (100%) |
Alright so im boosting with my right foot not throttling off. At times in 4th gear i can remember maybe also 3rd it sounds like its throttling off and releasing the air through the BOV. Im not sure why, my foot isnt all the way down and the rpm is probably at a constant 4000rpm. I feel the turbo is throttling off thats all.
And knock gets up to high 50s when this does happen... -------------------- |
Jul 10, 2011 - 1:27 AM |
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Enthusiast Joined Dec 15, '02 From Tasmania(Australia) Currently Offline Reputation: 0 (0%) |
the chop noise im reasonably sure is the compressor surge. If you have an aftermarket ecu you can help get rid of it with tuning (taking some ign timing out in that part of the map)
as far as the knock goes, well you fan fix that with tuning too. Its possible you got a bad batch of fuel. most knock does happen in the mid/low range because some tuners spend all the time in the top end and not worry about the mid and low range. in any car its not wise to load it up with low revs and high throttle openings. -------------------- ST205 Group A Rallye GT-Four, #61 of 77............600hp GT3582r
GRX133 Toyota Mark X 350s |
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