Critical Oil Pressure

[adam 32]

yeh well this oil pressure bull**** has put me off boosting my car.

it went in for a service last thursday and was supposed to have boost controller fitted but i bailed. now i need to buy an oil pressure guage instead... dont want to have to replace the engine AGAIN

ill definately be down, will probably race.... not looking so good on times though i dont think:D

[adam 32]

can someone please explain to me this main bearing thing?

and if theres any othe ways of testing the problem?

thanks

[Cubes]

Main bearing as in Big End Bearing?!?!

Basically I think what they mean is if the bearing is worn then the oil will leak out the sides and will possibly not allow the oil to coat the entire bearing instead just leaking out near the oil hole that is within the bearing?!?

I'm not 100% sure though.

T04e doesn't sound laggy at all if it comes on full boost at 3500-4000rpm.

Around the same as a HKS 2530 BB Turbo but can make more power?!?! Is that right? .

How much did the engine rebuild cost approx?

Also maybe speak to WDRacing on SDU as he has a T04e and I think is running Alcohol Injection, he has been running it like this for some time now and it seems to be reliable.

[adam 32]

im running 9psi and making around 210rwhp

i didnt rebuild the engine, i just bought a new one as the RB20s are so cheap these days

i still dont understand why sometimes the oil pressure is fine and sometimes its really low... does this sound like a worn bearing or could it be a dodgey guage?

[Cubes]

So did your old engine have the same pressure fluctuations?

If not well try to swap the oil pressure sender that is located near your oil filter.

It looks like a little screw in plug that you connect a wire to.

Mine does fluctuate quite a bit also and some times it is down just above the 0.

[adam 32]

yeh mine too

so youre getting the same sort of problem?? (only just noticed your cars the same as mine)

is this what you did? is it a common thing in R32s?

[Cubes]

I still havn't fixed mine.

But yer it is apparently common with the RB Motors.

Could be wrong though.

My motor could also be ready to die, who knows.

[adam 32]

well unless my motor was ****ty to start with then mine could blow, but ive only ever run it at 9psi which is tuned to 11:1 so it cant be leaning out or anything

if it does blow then i can replace it on warranty (3month) but the wreckers will be bastards cos of the aftermarket turbo thing...

[adam 32]

ok ive done a bit of epxerimenting recently, the oil pressure only dips into it critical area (les than 2kg cm2) when i have less than 1/4 tank of fuel!!!!!

what the f*ck is going on?!

does anyone have ANY ideas? this is getting weirder, i know an aftermarket oil pressure guage will tell the story but im a bit out of pocket at the moment so any suggestions would be greatly appreciated!

[macka]

Yes!!!!!!! Ive heard of this..

Oil Gremlins blow into your pressure sender then suck to give you a stressful readin and when your tank is over 1/4 full they are in your fuel tank and messing around with A/F Ratios

I have to lie down now...

[adam 32]

when the fuel light comes on do they get caught in the wheels cos last night my rear wheels both fell off going down the freeway.... got a little messy

bloody gremlins

[kabab]

Originally posted by adam 32

ok ive done a bit of epxerimenting recently, the oil pressure only dips into it critical area (les than 2kg cm2) when i have less than 1/4 tank of fuel!!!!!

what the f*ck is going on?!

does anyone have ANY ideas? this is getting weirder, i know an aftermarket oil pressure guage will tell the story but im a bit out of pocket at the moment so any suggestions would be greatly appreciated!

Mine does the exact same !!!!

I did it a while ago as well then just fixed it self i think if you get a mechanical oil pressure gauge it will read correctly.

The oil pressure sensor must be farked !

[Cubes]

I have noticed since I put the Puraoil PureONE Oil Filter (the best one they have) that my oil pressure is more consistant and doesn't seem to really drop at all under the first 1/4 line.

Then again it could be just the sender working for a little bit?!?!

Doesn't matter as long as she doesn't tic.

[adam 32]

so theres no relationship between amount of fuel and oil pressure? (there cant be!?)

its the sensor?

[kabab]

Well i noticed tonight when comming home just after filling up the pressure didn't drop as low.

Where as the other day comming home near empty tank it was low as.

hrmmmmmmmmmmmm