aes 390, d1, someone help please
Dude, I'm running out of ideas.
Have you tried pulling the vacuum line to the bypass? Make that sucker stay closed or block it off altogether and do a WOT pass. I've had one hang open before and it limited boost to like 7 psi.
You've tested all the intake passages and not found anything. Have you tested the intake for leaks. Maybe you have a cracked intake? Are all the injectors properly seated?
Have you tried pulling the vacuum line to the bypass? Make that sucker stay closed or block it off altogether and do a WOT pass. I've had one hang open before and it limited boost to like 7 psi.
You've tested all the intake passages and not found anything. Have you tested the intake for leaks. Maybe you have a cracked intake? Are all the injectors properly seated?
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From: northwest La
Dude, I'm running out of ideas.
Have you tried pulling the vacuum line to the bypass? Make that sucker stay closed or block it off altogether and do a WOT pass. I've had one hang open before and it limited boost to like 7 psi.
You've tested all the intake passages and not found anything. Have you tested the intake for leaks. Maybe you have a cracked intake? Are all the injectors properly seated?
Have you tried pulling the vacuum line to the bypass? Make that sucker stay closed or block it off altogether and do a WOT pass. I've had one hang open before and it limited boost to like 7 psi.
You've tested all the intake passages and not found anything. Have you tested the intake for leaks. Maybe you have a cracked intake? Are all the injectors properly seated?
I bought a leak down tester today. But may just do a compression test 1st. I've never done a leak down and honestly have a few questions before I start it
Sounds like you have tried just about every thing on the blower end, I would get the compression test and leak down done to rule out that as a possibility. Hope you get it figured out. What are your Q's on the leak down test ?
Also do you run a catch can on your engine ?
Also do you run a catch can on your engine ?
At this stage, it's one of two general things, 1, the blower isn't moving enough air to make more than 11psi of boost, 2, something in your system is bleeding off boost.
Also, I don't think you're overspinning your blower either. (7.65" / 3.4)*4.10*6800rpm equals 62730 blower rpm, which is only 730 rpm over the rated 62,000 limit. 62,000 blower rpm would occur at 6720 rpm, so you're only overspinning it if you are consistently going over that engine rpm.
Is there anyone around you could swap over the blower to another one to test it? Hell, if you were close, I'd let you try mine since it's just sitting in a box in my garage right now. That way it'll at least eliminate the blower as the potential source of the issues.
Also, I don't think you're overspinning your blower either. (7.65" / 3.4)*4.10*6800rpm equals 62730 blower rpm, which is only 730 rpm over the rated 62,000 limit. 62,000 blower rpm would occur at 6720 rpm, so you're only overspinning it if you are consistently going over that engine rpm.
Is there anyone around you could swap over the blower to another one to test it? Hell, if you were close, I'd let you try mine since it's just sitting in a box in my garage right now. That way it'll at least eliminate the blower as the potential source of the issues.
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From: northwest La
I have -10 lines off both valve covers running to a vented can
At this stage, it's one of two general things, 1, the blower isn't moving enough air to make more than 11psi of boost, 2, something in your system is bleeding off boost.
Also, I don't think you're overspinning your blower either. (7.65" / 3.4)*4.10*6800rpm equals 62730 blower rpm, which is only 730 rpm over the rated 62,000 limit. 62,000 blower rpm would occur at 6720 rpm, so you're only overspinning it if you are consistently going over that engine rpm.
Is there anyone around you could swap over the blower to another one to test it? Hell, if you were close, I'd let you try mine since it's just sitting in a box in my garage right now. That way it'll at least eliminate the blower as the potential source of the issues.
Also, I don't think you're overspinning your blower either. (7.65" / 3.4)*4.10*6800rpm equals 62730 blower rpm, which is only 730 rpm over the rated 62,000 limit. 62,000 blower rpm would occur at 6720 rpm, so you're only overspinning it if you are consistently going over that engine rpm.
Is there anyone around you could swap over the blower to another one to test it? Hell, if you were close, I'd let you try mine since it's just sitting in a box in my garage right now. That way it'll at least eliminate the blower as the potential source of the issues.
Bout to hop outside and pull spark plugs I guess
You want the pistons at tdc. It is a pain in the *** by your self but this helped me...
Find TDC on #1 cylinder, you test the #1 hole and #6 at this time. Roll the engine over 90* and then #8 and #5 will be at TDC, check those 2 holes. Roll the engine over 90* this time #7 and #4 are TDC, check those. Roll another 90* and #2 and #3 are TDC.
Does your catch can have more **** in it than normal ?
Find TDC on #1 cylinder, you test the #1 hole and #6 at this time. Roll the engine over 90* and then #8 and #5 will be at TDC, check those 2 holes. Roll the engine over 90* this time #7 and #4 are TDC, check those. Roll another 90* and #2 and #3 are TDC.
Does your catch can have more **** in it than normal ?
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Brett Foote Thread Starter
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I was afraid you were gonna say that lol. Can looks normal. I'll get them to tdc. I am scared to see the results of this. But if they check out ok then i am even more confused. I am not ruling out belt slip, but damn i ran that belt a long time, when it came off it looked as good as the day i put it on, other than it being stretched pretty good, and it had tons of abuse on it. This is just a pita to do for it to not be the issue. I am just out of ideas
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From: northwest La
yes sir. Had to order a leak down tester. The one I bought wouldnt go over 20 psi, even though it said it went to 100. I'll post results when I can do the test
