oil pressure issue
Thread Starter
Launching!
Joined: Oct 2011
Posts: 280
Likes: 0
From: Phenix, AZ
oil pressure issue i have a ls1 with a ms4 cam and milled 243 heads. it has a slp oil pump and im haveing a little problem. when i cold start the car it has good oil pressure (idles 60psi) but when it gets warm and ive been driving it around for a while it idles at 20psi and drives around at 25-30 psi and when i go WOT it only gets up to 40psi all the way up to 7k rpms. any ideas? is my oil pump messed up?
On The Tree
Joined: Aug 2011
Posts: 118
Likes: 0
From: Raleigh, NC
Is there a chance one of the cam lobes got scratched in the install? That can kill oil pressure in a hurry. You could also try a simple volt meter test on the pump to see if it is a power issue if you think its the pump. (just try the simple things before stuff starts flying out of the engine bay and onto the workbench...) 
Thread Starter
Launching!
Joined: Oct 2011
Posts: 280
Likes: 0
From: Phenix, AZ
Is there a chance one of the cam lobes got scratched in the install? That can kill oil pressure in a hurry. You could also try a simple volt meter test on the pump to see if it is a power issue if you think its the pump. (just try the simple things before stuff starts flying out of the engine bay and onto the workbench...)
On The Tree
Joined: Aug 2011
Posts: 118
Likes: 0
From: Raleigh, NC
If you put a heavy oil in, you will see an overall increase in oil pressure 5-10 psi above what you have right now. Now with this fix the issues you are having?: Im not sure. You can try it and see because thats only $20 to narrow down your problem...
Thread Starter
Launching!
Joined: Oct 2011
Posts: 280
Likes: 0
From: Phenix, AZ
well hopefully that fixes the problem. ive heard that with the slp oil pumps they are higher velocity than stock so they tend to drop a little oil pressure because the hole is bigger. is this true?
