Oil pump for Journal bearing turbo

[devilrmk]

Anyone running an electric pump besides the Greylor or Twisters pump that works?

Twister doesn't seem to have any, and the greylor just isn't up to the task pressure wise. Currently running the greylor 24v about 16psi when hot with 50w oil. The 12v pumps don't seem to last so I have heard.
Just not enough.

I run coolant through my turbo and have a 2qt oil capacity.

 

[Team Voodoo]

I did alot of searching when I started my turbo build and there is not much out there for pumps. I went with the 24v greylor, To me the pressure is on the low side alittle, how about running a lighter wieght synthetic oil like a 5 / 20
weight I'm sure that would bring up the pressure and the pump would not work as hard making it last longer. If a car can run on 5/20 I'm sure a turbo can.


Mike

 

[1200psi]

I had the same issue burned up 3 of twisters call push turbo and ask him he sells one that is cabable of 40 psi and works tits it is a little on the big side but worked great and is very reliable. They are about 350.00 thought.

 

[Jeff K]

Cutler uses a 12v pump. I am not sure the make/model, but you may want to call them as see what they use?

 

[devilrmk]

I did alot of searching when I started my turbo build and there is not much out there for pumps. I went with the 24v greylor, To me the pressure is on the low side alittle, how about running a lighter wieght synthetic oil like a 5 / 20
weight I'm sure that would bring up the pressure and the pump would not work as hard making it last longer. If a car can run on 5/20 I'm sure a turbo can.


Mike

Well with 10/30 I was at about 14psi hot and with 10/50w I am at 18. Lighter oil is just going to drop my pressure even more. Both of these are synthetic mobil1. The lighter oil flows through the bearings easier which increases flow that the pump can't push.

A turbo car has an engine driven pump that flows plenty of oil. Its not that the turbo won't live on 5/20 its that the turbo won't live on that low of pressure. The greylor pump just doesn't flow very well at any kind of Psi.

I think I am up against the flow capability on the greylor, at least at 12v. Thinking of building a voltage amp to push it up to 16v or so, until I source another pump.

 

[jlast]

greylor still the only pump ? update please

 

[devilrmk]

I ended up using the greylor 24v pump for an entire season. My original turbo had some seal issues so it didn't hold pressure well. Once i swapped the turbo i had 18-24psi pressure and my turbo held up.

I pulled the turbo off the next season.

 

[brycter]

Go to www.turboboyz.com and looking the oil pump section we have them. The biggest thing that we have a problem with in the journal bearing. Is the oil tank being able to flow that amount of oil and still be baffled when it is upside down.

 

[mattymac]

I had a CPI mechanical pump on one of my turbo builds years ago, mounted where the injection oil pump went (had to premix) pump worked great for the mitsu journal bearing setup I was running.

 

[turbo800]

I built a few of these for my Doo 800HO for the Mitsu turbo. It's driven off the crank and replaces the stock oil injection pump. It will make over 60psi(that's as high as my gauge reads), so a regulator needs to be used with it. This is the same gerotor design as all the modern 4 stroke bikes use.