What is the difference between a turbo oil pump and a standard one that has been retrofitted with the stiffer springs? Is there somethng else that needs to be done to the standard pump?

steve77

Hi Steve:

Now, this is what I was told. I don't know it for a fact myself.

I was told that the stiffer springs installed in a Stock Oil Pump change the point where the pressure relief valve opens. ONLY. So you get standard volumn of oil at a higher pressure.

The Turbo Oil Pump actually has a larger (taller height, not diameter) rotor so that it pumps a greater volumn of oil at the standard oil pressure.

FWIW,

Carl

Yup, that's the way I understand it too...

I used the high volume pump from MSA(which is nothing more than a ZX Turbo pump) on the old IT car as I was using an oil cooler and wanted as much volume as possible through the cooler. It will up your pressure slightly due to the inherent restrictions in the engine but not much more than 10lbs. Where my engine ran 50lbs at WOT before, it ran 60 or so after at WOT... hard to remember back that far. After 5 year of track time and 8 years of sitting, it's now back on the track and still running the same pressure as it was when new.

I'd always go for volume over pressure.

Yes, I have the turbo pump on my green car and love the way the needle stays planted up there above half-way most of the time.

But....I have a PILE of standard pumps laying here and was thinking of retrofitting one for this new car.

Is there any identifying marks on the outside of the pump that would indicate it was a 'turbo' pump?

steve77