03-08-2021, 05:19 AM
Replies appreciated!
Air filter looks good, under 8k miles . Throttle moves to max , at least in static test .
Pyrometer was 600 at 80 mph , 2400 rpm .
Appeared as slight grade . Max boost at lower rpm under load .
I want all available power for pulling trailer , also concerned about possibility that turbo could be losing vane material , particularly on intake side .
Suspect fuel rack adjustment needs attention as there is exhaust temp imbalance between banks at idle .
Thanks , Chris
Image
Air filter looks good, under 8k miles . Throttle moves to max , at least in static test .
Pyrometer was 600 at 80 mph , 2400 rpm .
Appeared as slight grade . Max boost at lower rpm under load .
I want all available power for pulling trailer , also concerned about possibility that turbo could be losing vane material , particularly on intake side .
Suspect fuel rack adjustment needs attention as there is exhaust temp imbalance between banks at idle .
Thanks , Chris
Image
1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed
Chris and Sharon Hand