Oil pressure light comes on when drifting

kokkolanpoika · Post by **kokkolanpoika** » Thu Jul 19, 2012 9:50 pm

Hi.

I have got Rover SD1 V8 witch is heavy car, approx 1650Kg measured. Tyres are 245/45-17 so get some grip vs 205/60-15.

I just do an nice powerslide +180deg U-turn in traffic circle.

I notice that my oil pressure light is flashin/burn just when my revs are lay down to idle. +4000rpm hole time and tyres squel like mad...
I slightly add gas and light goes away, pressure gauge also pump up when light goes away..

How many possibility fault spot i have?
In straight road i don´t have got any problems anymore when i replace my Mahle oil filter to another manufacturer.. Oil pressure stay there where it should be.
But in powersliding it will flash.
I have got STD SD1/RRC oil pump and SD1 sump, Tadpole + hi pressure oil pump spring (adjustable spring base)

I estimate that my oil SUMP is not suitable for drifting anymore, bacause RV8 5.2litre ~400hp engine revs very quickly up to 6000rpm even in straight road.. So is my oil escaping sideways + then pump is sucking air when drifting?
Or cold it be some other problem? Bearings? Oil pump? Some oil pick up pipe gasket?

Thanks..

Boosted LS1 · Post by **Boosted LS1** » Thu Jul 19, 2012 9:59 pm

Sounds like oil surge to me. The oils going sideways. Do you get a puff of smoke as if it's passing the piston rings? Easy fix, weld a horizontal baffle in the sump so the oil stays underneath.

kokkolanpoika · Post by **kokkolanpoika** » Fri Jul 20, 2012 7:24 am

Hard to say if there is a smoke.. Tyres will make too mutch..

I just made slightly milder +360deg burnout turn.. And i notice pressure is dropping slightly down, but not that mutch than oil pressure light go on..
And this time i didin´t notice any sign of oil smoke.. Revs are approx 3000rpm and pumping gas..

stevieturbo · Post by **stevieturbo** » Sat Jul 21, 2012 8:25 pm

Baffle your sump so the oil cannot move away from the pickup so easily.

SimpleSimon · Post by **SimpleSimon** » Sun Jul 22, 2012 8:56 pm

If you know this is happening don't continue to do what causes the oil surge otherwise you will ruin your engine or at least wreck the crankshaft bearings

kokkolanpoika · Post by **kokkolanpoika** » Mon Jul 23, 2012 7:33 am

I made this drifting test 1 time and made small doughnut couple of time without proplem..
I have to add baffle plate next winter. And if i get 4.2l serpentine engine with my friend in Sweden, i also want to take serpentine oil pump in my engine..

I also want to check my engine bearing´s next winter and replace them if they are worn out.. Hope not..