Boost spike
I get on it, boost spikes to around 8psi, runs lean (almost 13.0), as the pressure drops everything normalizes to 5psi (10.5-11.0). Have to keep my foot out of it to keep from running lean.
Can I just adjust the wastegate preload to fix this? |
Originally Posted by whinin
(Post 1166818)
I get on it, boost spikes to around 8psi, runs lean (almost 13.0), as the pressure drops everything normalizes to 5psi (10.5-11.0). Have to keep my foot out of it to keep from running lean.
Can I just adjust the wastegate preload to fix this? What engine? What downpipe and exhaust size? What fuel management? With the lack of information, my answer is "possibly" Keith |
td04h
1.6l stock downpipe, stock exhaust (no cat) bandaids |
Originally Posted by whinin
(Post 1166825)
td04h
1.6l stock downpipe, stock exhaust (no cat) bandaids Anyway, best advice is to try reducing the pre-load on the actuator and see if it helps. It seems to control fine after it finally cracks open. Where is your boost source for the wastegate signal? Keith |
Stock downpipe as in the one that came with the greddy kit. Sorry lol.
Source is the stock line from the turbo outlet. I had it on the intake manifold and found out that was bad, since you could be at part throttle and getting 5psi but the turbo is pushing 20psi to get that 5 in the manifold. Had that for about a week, I knew something was wrong when the turbo was louder at part throttle. I know I need to get my source from the intake plumbing right after the intercooler. That will be in due time. Thanks! I figured the best/easiest option to to reduce the pre-load a bit. Just wasn't 100% sure. |
Originally Posted by whinin
(Post 1167016)
Stock downpipe as in the one that came with the greddy kit. Sorry lol.
Source is the stock line from the turbo outlet. I had it on the intake manifold and found out that was bad, since you could be at part throttle and getting 5psi but the turbo is pushing 20psi to get that 5 in the manifold. Had that for about a week, I knew something was wrong when the turbo was louder at part throttle. I know I need to get my source from the intake plumbing right after the intercooler. That will be in due time. Thanks! I figured the best/easiest option to to reduce the pre-load a bit. Just wasn't 100% sure. |
Originally Posted by Girz0r
(Post 1167171)
try to source on the intake piping right before the throttle, minimize having lag and get the 'right' boost source.
Keith |
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