My lifted 00 silverado Lq9 swap and turbo build
12-24-2014, 01:41 PM
#61
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Ok took waste gate off everything was working perfect I dropped the spring down to a 4psi spring and still spikes I hit 16psi at WOT here is my setup
12-26-2014, 09:19 AM
#65
I don't think those waste gates like being hooked to a vacuum source. I have mine referenced off of the compressor housing, which is only boost. The wastegate needs the boost pressure reference to help it open.
On the other hand, when I put my 4" down pipe and exhaust on, my 38mm wastegate had extreme boost creep. I now have a 60mm wastegate and can maintain 4lbs rock steady.
On the other hand, when I put my 4" down pipe and exhaust on, my 38mm wastegate had extreme boost creep. I now have a 60mm wastegate and can maintain 4lbs rock steady.
12-26-2014, 10:08 AM
#66
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I don't think those waste gates like being hooked to a vacuum source. I have mine referenced off of the compressor housing, which is only boost. The wastegate needs the boost pressure reference to help it open.
On the other hand, when I put my 4" down pipe and exhaust on, my 38mm wastegate had extreme boost creep. I now have a 60mm wastegate and can maintain 4lbs rock steady.
On the other hand, when I put my 4" down pipe and exhaust on, my 38mm wastegate had extreme boost creep. I now have a 60mm wastegate and can maintain 4lbs rock steady.
12-26-2014, 04:31 PM
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I'm just venting the valve covers right now and tired of the oil smell but I have never read so much back and forth between vented catch can or vacuum can and setup, it's making it hard to decide what's best for my setup
12-26-2014, 06:05 PM
#70
The oil smell was my main dilemma when the ac was on. The vented catch can will still smell inside, it will just eliminate the mess all over your engine. A vacuum catch can takes more to setup properly, but is the best setup imo.