Oil pressure?

[TrickFlowd]

Whats good oil pressure on stock bottom with trick flow top end? mine is around 50 lbs at idle and seems to drop some at WOT. Could this be caused from thin oil? I'm running Purple Power full synthetic with Fram filter. I would like to change to Mobil 1 synthetic since purple power is so expensive and harder to find than Mobil. What u guys think?

 

[N02-87FOX]

I use nothing but royal purple you can pick it up at any napa parts store. Mobil 1 changed there synthetic to semi-synthetic and still label it as synthetic.

 

[TrickFlowd]

how often do you change your oil? I just bought the car so I'm not sure.

 

[DMAN302]

oil pressure should NOT be dropping under throttle...I'd be curious to find the cause of that for sure.

 

[Fox8950]

Same here pressure should only raise slightly with more rpm, that is odd to have it drop. Are you using stock gauge? I use nothing but the mobil 1 extended performance (15,000 mile stuff) and have nothing but good things to say ... in fact it majorly saved my bearings on my old stang even after it was drivin a few miles after the oil pump shaft turned into a twizzler.

 

[TrickFlowd]

autometer gauge. I just bought the car last night...for a steal price. It has somewhat of a leak on the timing chain cover...could this help with the drop in pressure?

 

[Fox8950]

Little leak shouldn't really effect your pressure much and at least your not relying on the good ole craptastic factory gauges afraid I think I'm just about as stumped as you atm. I'd go investigate how the previous owner hooked up his gauge and stuff and if the gauge all looks good keep a close eye on oil level/pressure for a while and see what happens if you don't feel like digging in quite yet.

 

[TrickFlowd]

false alarm! I found a small crack in the gauge line. fixed that, and shes back to normal. about 51psi at WOT and stays around 30 at idle. I think thats pretty much perfect?

 

[bentley429]

false alarm! I found a small crack in the gauge line. fixed that, and shes back to normal. about 51psi at WOT and stays around 30 at idle. I think thats pretty much perfect?

Sounds good to me! Rule of thumb is 10 psi for every 1k rpm, though I wouldnt want my car idling at 10 psi....

 

[TrickFlowd]

Thanks! Hopefully things stay that way.

 

[86bluecobra]

oil pressure should NOT be dropping under throttle...I'd be curious to find the cause of that for sure.

It could if you had a high volume pump and didn't have a 7 quart pan on the car. You can pump a sump dry at WOT thus loosing all oil pressure. Atually even with my 7 quart pan I do notice a drop in my oil pressure while at the track and on the bottle.