Rb20 Oil Pump

[boostn32]

Im just wondering if it is possible to increase the pressure the oil pump puts out in a RB20 oil pump.

if i change the releife spring to a harder one will this increase pressure. im only talking a slightly stiffer spring maybe for an extra 1 or 2 psi.

will this cause problems on the oil pump.

Thanks Luke

Edited November 2, 2005 by boostn32

[B0oStEr]

Why do you want more pressure? Is it reading low?

The factory gauge is notorious for playing up.

[GTRgeoff]

Assuming some similarities with the R33/GTR pump, it is common enough for the screws to come loose in the back, resulting in some pressure loss. Reassemble using loctite on the screws.

If/when you remove it make sure you dismantle the pump and inspect tolerances. Once apart you will learn why you can't increase pressure other than by increasing the relief spring tension. It should be ok following that but GTR32 pumps are notorious for failing due to short drive flats, a concern possibly shared with R32 GTSt but I have never bothered to check that specifically.

[RB240Dav]

Does the GTR pump push out more psi than the GTS-T? I hooked up the stock GTS-T gauge to my GTR motor and it pegged out above 8 kg/cm^2