4x4dually
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- Joined
- Jan 22, 2007
- Messages
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What I "think" I'm seeing on my logger is the drive pressure causing the wastegate to flutter back and forth. I would assume this may be detremental to the turbo or not? I've heard the optimal boost to drive pressure ratio is 1:1, but if I lower the drive pressure by reducing the pressure at which the wastegate opens, at what point will I suffer boost pressure?
Can someone put this into perspective for me so I can understand it?
This is what my latest plot looks like. The drive pressure maxes out at 58.52. At this point, the boost pressure is 43.64, a difference of 14.9 psi.
I'm pretty sure my WG is set to open at 40 psi from II. It appears that once it pops above 40 and goes to dancing, I lose my top end boost. That plot is of 5th gear and then shifted into 6th gear.
Can someone smart tell me some good info?
Can someone put this into perspective for me so I can understand it?
This is what my latest plot looks like. The drive pressure maxes out at 58.52. At this point, the boost pressure is 43.64, a difference of 14.9 psi.
I'm pretty sure my WG is set to open at 40 psi from II. It appears that once it pops above 40 and goes to dancing, I lose my top end boost. That plot is of 5th gear and then shifted into 6th gear.
Can someone smart tell me some good info?
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