Quote:
Originally Posted by 1slow370
there is a tiny regulator in the pump that attempts to keep the oil pressure from getting to high, can't remember which team it was but one of the HR race cars was noting over 110psi at 8000rpm.it's to bad the pump is located on the crank snout or it would be a great pump for a wet sump system, unfortunately high rpm's still effect it similar to the issues the old rb26's had when the crank nose vibrates it puts a huge strain on the tight clearances in the pump, imo this is what most likely killed megan370's motor not the vvel. the pickup has a screen in it so it is unlikely that a pin from the vvel got sucked into the pump and more likely that the pump blew cuz his rev limiter was raised, which lead to his vvel roasting and blowing.
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I agree. VQ pumps have been notorious for failure. But our VHR's 7500rpm redline was enough to grenade the classic DE pump. So we are better off than the VQ was around 2003. I believe that the VR38 took the pump off the crank and put it down on a chain. But, the Toyota 2JZ seemed to have no problems with the oil pump drive gear interfacing directly on the crankshaft... so there is hope in working with it.