Possible to use a FPR to regulate oil pressure?

[Teflon]

The thread topic pretty much sums it up, If I hook a FPR up to my oil system will it help regulate the pressure to the turbo?

 

[Calan]

I kind of doubt it...at least not in a predictable way due to the difference in viscosity between fuel and oil(s).

Besides that, I don't think you would want to.

 

[Friend-O]

Sadly no, The AFPR is based on rpm specific and boost specific feedback. under boost the AFPR matches the fuel 1 psi to 1 which would cause your oil pressure to rise correctly in theory but not to the cars needs. When you first start a cold car the oil pressure is in the 80-100 psi range and when its warmed up its in the 0-20 range. The problem you will hit is before the car hits boost levels to raise the oil pressure your oil demand will be higher than supply and the engine wont be happy.

 

[OEM]

I'm just assuming from the question that you have oil pressure problems? What's going on?

 

[Teflon]

Ahh thanks. No oil pressure problems yet just doing my research for the track car. I have heard of oiling problems in a lot of the larger turbos and just looking for ways to combat it.

 

[bastarddsm]

It could totally be done, however you will probably have to make some custom parts. A fpr is not a bad idea, but you are over complicating the system. You don't really need it to be boost referenced. However, it could be and it does represent some interesting ideas as far as turbo life and spool time are concerned. Actually getting it to work would be quite a task.

what i would consider is a chain like this:

(OFH) - (0.100" restrictor) - (-4an line) - (T fitting) - (pressure relief valve ~ 75psi) - (line to oilpan)
|
(turbo) - (adaquately sized drain line) - (oilpan)


A system like this will acomplish a few things:
1. Turbo gets an adaqute supply of oil, even when engine oil pressures are low (because of the larger restrictor)
2. Turbo is not over pressured by oil (because of the high pressure bypass)
3. Engine oil system is not overtaxed ( because of the restrictor.)

I will probably try somthing like this with my WH1C

 

[jrohner]

This would probably work good with a cheapo aftermarket AFPR. You could get rock solid consistent oil pressure.

 

[rarest_90_DsM]

you could try running a separate oil system just for the turbo. oil reservoir electric pump oil cooler and just block off the oil feed from the engine to the turbo.route it like reservoir to pump to turbo to cooler back to reservoir the only problem would be getting the oil warm right after start up. think that would be better then running a fpr in line to the turbo