Dub-Se7en
Lifer
after forging the engine everything has been running sweet as a nut, even the little CT9 is coping with 1.2 bar ok (so far )
but the one thing that has bothered me is the car has always suffered from low oil pressure on idle.
if the engine is cold or i am driving along the oil pressure is fine, when cold it's almost 100psi and when warm and driving about it's around 50 psi.
but when up to temp and idling the oil pressure drops to as low as 14 psi. which can't be good. it's never been low enough to bring the oil warning light on (well once it did, but the engine was ticking over about 400rpm) but i see that warning light is a 'whoops too late, your engines fucked' light.
this engine has had a lot of work internally, oil galleries have been opened out and de-burred. the oil pump area has also been slightly ported out and de-burred. i was wondering if this has something to do with it? or maybe a weak pressure relief valve but surely the pressure would be low accross the board? (except when cold, obviously)
was thinking of changing oil grade to something thicker like 20w50 but wanted peoples thoughts first
Cheers
Ian
but the one thing that has bothered me is the car has always suffered from low oil pressure on idle.
if the engine is cold or i am driving along the oil pressure is fine, when cold it's almost 100psi and when warm and driving about it's around 50 psi.
but when up to temp and idling the oil pressure drops to as low as 14 psi. which can't be good. it's never been low enough to bring the oil warning light on (well once it did, but the engine was ticking over about 400rpm) but i see that warning light is a 'whoops too late, your engines fucked' light.
this engine has had a lot of work internally, oil galleries have been opened out and de-burred. the oil pump area has also been slightly ported out and de-burred. i was wondering if this has something to do with it? or maybe a weak pressure relief valve but surely the pressure would be low accross the board? (except when cold, obviously)
was thinking of changing oil grade to something thicker like 20w50 but wanted peoples thoughts first
Cheers
Ian