E85 Fueling Problem
Dec 22, 2011, 01:31 PM
#18
try switching the dv from push to pull mode (flip the dv position so the dv piston face is pointing to the intake pipe) to determine if dv cracking is the cause. setting it to pull mode will 100% keep it shut under boost. doing this with the stock valve its a bit rough on the turbo during throttle lift, but ok to try briefly.
Dec 30, 2011, 12:12 AM
#20
My boost leak test showed that the stock IX BOV cracked at 25 psi. I crushed it 1/8" in a vice until the nipple was almost touching the top. It now holds 32 psi and I have no flutter at part throttle.
After reinstallation the mad rich dip in the AFR is gone, and the same goes for the lean peak immediately after max boost. I have not made any other changes to my set up so I know that a leaky IX BOV was the source of the problem.
After reinstallation the mad rich dip in the AFR is gone, and the same goes for the lean peak immediately after max boost. I have not made any other changes to my set up so I know that a leaky IX BOV was the source of the problem.
Dec 30, 2011, 07:59 AM
#21
My boost leak test showed that the stock IX BOV cracked at 25 psi. I crushed it 1/8" in a vice until the nipple was almost touching the top. It now holds 32 psi and I have no flutter at part throttle.
After reinstallation the mad rich dip in the AFR is gone, and the same goes for the lean peak immediately after max boost. I have not made any other changes to my set up so I know that a leaky IX BOV was the source of the problem.
After reinstallation the mad rich dip in the AFR is gone, and the same goes for the lean peak immediately after max boost. I have not made any other changes to my set up so I know that a leaky IX BOV was the source of the problem.
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