TheWanderer
New member
- Joined
- Mar 24, 2010
- Messages
- 28
Not sure how else to word this, here's what happens, during a WOT run to 100mph, when the truck shifts into 4th (tcc engaged) the boost drops off from 38psi to 30psi and takes a few seconds to get back up.
I realize that the ratio drop from 3-4 is the largest between two taller ratios, but it seems odd that its not as prevalent in 5th.
My suspicions are either drive pressure has overcome boost pressure causing the wastegate to open momentarily or that its just normal?
I realize that the ratio drop from 3-4 is the largest between two taller ratios, but it seems odd that its not as prevalent in 5th.
My suspicions are either drive pressure has overcome boost pressure causing the wastegate to open momentarily or that its just normal?
