ChipTuner on Nostr: Ehh, possibly with the billet wheels, but on 6.4s pedal response is mostly in your ...
Ehh, possibly with the billet wheels, but on 6.4s pedal response is mostly in your tuning, especially with a tiny little VGT. You will usually see lower average EGT though when going to billet wheels.
Blow off valves are for useful for throttled engines (gas engines) because when the throttle snaps shut all of that energy stored in the charge air needs a place to escape, so it goes back out the compressor side causing a large pulse of shear force on the shaft or even causing the wheels to spin in reverse, then another huge spike in the positive direction after that column of charge air escapes.
In diesel engines without throttles (yeah I know the cali emissions 6.4s had "throttle" blades but they aren't used for throttling) that charge air just gets stuffed into the cylinder and doesn't do anything, just raised AFR which again is just fine for a diesel engine. So you turbo and your engine will be fine, a blow-off valve is pretty much useless!
Because diesel engines are fuel metered, you can stuff as much air as you want into the cylinder and it will only make as much horsepower as fuel is available in the cylinder. (horsepower is a function of cylinder pressure btw)
Blow off valves are for useful for throttled engines (gas engines) because when the throttle snaps shut all of that energy stored in the charge air needs a place to escape, so it goes back out the compressor side causing a large pulse of shear force on the shaft or even causing the wheels to spin in reverse, then another huge spike in the positive direction after that column of charge air escapes.
In diesel engines without throttles (yeah I know the cali emissions 6.4s had "throttle" blades but they aren't used for throttling) that charge air just gets stuffed into the cylinder and doesn't do anything, just raised AFR which again is just fine for a diesel engine. So you turbo and your engine will be fine, a blow-off valve is pretty much useless!
Because diesel engines are fuel metered, you can stuff as much air as you want into the cylinder and it will only make as much horsepower as fuel is available in the cylinder. (horsepower is a function of cylinder pressure btw)