Technical Information

**floorman1** · 10-16-2009, 04:59 PM

When I drive my car hard, my oil pressure takes a dive. Any suggestions?

**Spaz** · 10-16-2009, 05:17 PM

i'll be kind and move this thread even though you didn't read the RULES!!!

**pajeff02** · 10-16-2009, 05:20 PM

Have you checked it with an aftermarket pressure gauge? What sort of numbers are you seeing on the gauge?

**0rion** · 10-16-2009, 05:39 PM

yeah, what kinda pressures are you seeing. Normally oil pressure should go up with rpm's and not down.

**SeVeReDiStOrTiOn** · 10-16-2009, 06:39 PM

probably a bad/leaking sending unit

**0rion** · 10-16-2009, 06:48 PM

Originally Posted by SeVeReDiStOrTiOn

probably a bad/leaking sending unit

very good place to start. I would be careful though with the 98's....there has been some oil pump issues with that year.

**floorman1** · 10-17-2009, 01:39 PM

the engine has been replaced with a 04 ls6 crate it now has 98k miles on it.the oil pressure gauge dips down to about 25 psi during desselaration after a hard run not during the run. oil pressure stays between 40 60psi during the run and normal driving

**Hi-Po** · 10-17-2009, 08:35 PM

Originally Posted by floorman1

the engine has been replaced with a 04 ls6 crate it now has 98k miles on it.the oil pressure gauge dips down to about 25 psi during desselaration after a hard run not during the run. oil pressure stays between 40 60psi during the run and normal driving

What is the guage reading at WOT?

**Mr. Luos** · 10-17-2009, 08:41 PM

Mine does this as well.

It is normally a little low on oil when it does.

**Hi-Po** · 10-17-2009, 08:46 PM

Originally Posted by Mr. Luos

Mine does this as well.

It is normally a little low on oil when it does.

Your not the guy that waits for the " Low Oil" Light to come are you

At WOT my guage is almost pegged out, and I like it that way

**floorman1** · 10-17-2009, 09:55 PM

the gauge reads 40 to 60 at wot pressure only dips when u come to a stop or almost stopped no noise or other problems stills hauls ass at 12.56 in the quarter

**Hi-Po** · 10-17-2009, 10:00 PM

Originally Posted by floorman1

the gauge reads 40 to 60 at wot pressure only dips when u come to a stop or almost stopped no noise or other problems stills hauls ass at 12.56 in the quarter

If its reading 40 PSI at 6000 RPM, I would be weary.

**floorman1** · 10-17-2009, 10:00 PM

the gauge reads 40 to 60 at wot pressure only dips when u come to a stop or almost stopped no noise or other problems stills hauls ass at 12.56 in the quarter

**pajeff02** · 10-18-2009, 05:37 AM

Originally Posted by floorman1

the gauge reads 40 to 60 at wot pressure only dips when u come to a stop or almost stopped no noise or other problems stills hauls ass at 12.56 in the quarter

As a general rule, you want 10 psi of oil pressure for every 1,000 rpm. Therefore, 40 psi at WOT does sound low and it is about 25-35 psi less than what our gauge reads when cranking on it (assuming it is accurate).