My machinist gave me a little "tip" and told me how to boost oil pressure on the stock oil pump. Basicly instering a .4mm washer into the relief valve assemble to increase spring tension there by increasing the point when the valve opens and increase pressure. My question is do I even need to do this on a n/a gsr with just a 10.8ish ratio and stock cams? Also will increasing the pressure this way cause the oil pump to fail? especially at high rpm? My pump has 90k on it, not sure if that extra stress will increase the chances of failure. The pump specs out with a feeler gauge well within oem service limits.

 

Higher oil pressure will cost you Hp

 

okay, but is it going to cost me an oil pump too?

 

i wish i knew what your talking about,i wanna raise my oil pressure..any pics of the procedure?

 

why do you want to raisy your oil pressure,, unless your feeding a turbo, your stock oil pressure is just fine.

 

Don't waste your time. If you're concerned about lubrication, consider an oil cooler. The early G3 Integras had them.

 

how much hp roughly?? i have a shimmed ls oil pump that peaks out at 92psi.. that high of a pressure certainly does a number on my oil seals =o(

 

when you shim your oil pump, you pre load the spring. that will cause the crank to use more force to move the piston, that will cause you a loss in Hp.

 

the hp loss will be negligible, and oil keeps engines happy, i considered that mod as well but went with a new higher flowing pump instead. If youre already at 90k its about time for a timing belt change, id change your water pump and oil pump, maybe get a higher flowing pump if thats what tickles your goose. Im sure your bearings wouldnt mind a bit more lub.
good luck holmes

 

I got two words for you guys that want higher oil pressure "Crank Windage"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by infinatenexus &raquo;</TD></TR><TR><TD CLASS="quote">I got two words for you guys that want higher oil pressure "Crank Windage"</TD></TR></TABLE>

i wish you can explain in more detail..

 

i dont mind a little crank windage..i want more oil pressure..someone said higher flow oil pump,what is it?where can i check it out?and would a type-r pump help out?

 

speedbump

 

depending on what kind of year your pump is, you could upgrade to a 96-up pump spring.shimming is pointless on and street na car

 

Once again, unless your having to cool a turbo,, higher oil pressure will do nothing but cost you Hp.

As for windage, thats what you call oil on your crank, as in excess oil on your crank. The higher your oil pressure, the more excess oil your crank has to shed. That will cost you Hp that could otherwise be used to spin your tires.