ripplefct said:
The wastegate only kicks in at 14 PSI on this turbo. Im only making 10 PSI. A tractor is unlike a car where you are constantly in and out of the turbo. Tractor tend to be set at an RPM and left to work. So you want 100 percent boost all the time. The turbo spools pretty quick both up and down so very little chance of needing a BOV. It's a pretty simple system.
And Yes it does make more power... Like ALLOT!!!!!!. Im going to need to get bigger tires for it.
Rip
Diesel engines dont have a throttle plate so there is no need for a BOV at all. The purpose of a blow off valve is to relieve pressure build up and impeller strain when a throttle plate is closed quickly on a gasoline application.
As for the wastegate- Diesel engines rarely "need" wastegates. It really depends on the turbo/engine combo. If a turbo is sized to provide more CFM of air flow than the engine can consume, a wastegate is needed. If an engine can handle up to 1000cfm and the turbo is only capable of 900cfm...no wastegate is needed. It seems like is see alot more diesel turbos W/wastegates these days. I think its because they size the turbos to produce more air flow in the lower RPM range, but not overboost at WOT.