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I have an '03 CC D/A LB with a Hot Juice, stock exhaust, K&N filter with homemade 4" PCV intake from stock filter box to turbo, stock Allison, approx 12K miles.
Regular mode on the Allison is set to level 3, T/H mode set to level 4. Have EGT and Boost guages, wastegate signal is currently blocked off.
When in T/H mode, I see appprox 31-32 psi in 2-4th gear and from 1250-1350* F EGT, but going into 5th it makes slightly less boost and EGT backs down as low as 1000* F. The Allison has never been limped. I assume it's defueling slightly, but why? Is it just something the HJ does, or is the HJ detecting slippage?
Regular mode on the Allison is set to level 3, T/H mode set to level 4. Have EGT and Boost guages, wastegate signal is currently blocked off.
When in T/H mode, I see appprox 31-32 psi in 2-4th gear and from 1250-1350* F EGT, but going into 5th it makes slightly less boost and EGT backs down as low as 1000* F. The Allison has never been limped. I assume it's defueling slightly, but why? Is it just something the HJ does, or is the HJ detecting slippage?