Oil pressure on small block mopar

jmcarter · 01-07-2009, 03:51 PM

Fairly new to board, just getting back into racing after a sabatical. I've noted how many folks are ready to help with advice on any number of issues and thought I'd throw mine out there for feedback. Have a Moroso pan (full length of pan approx. 6 inches deep, three chambers seperated by two 3 inch barriers, each with operating trap doors) and I've put two runs on a new motor. Both passes resulted in zero oil pressure when I hit the brakes at end of the run. I have good (not excessive) oil pressure, the pickup is matched to the pan and everything else seems to be in order when running Valvoline 20-50 for the sake of safety.

Also, want to get a backup motor together and I'm new to the east coast (Savannah, GA), any recommendations for both a class motor as well as fast brackets that is close?

bobby · 01-07-2009, 06:22 PM

My Pontiac used to do the same thing with the stock pan, I modified it with a baffle that runs front to rear,parallel with the block. Helps keep the oil around the pickup. Also put one in the real like Moroso sells for the sbc. Fixed about 90% of the problem.

art leong · 01-07-2009, 07:10 PM

[QUOTE=jmcarter;98748]Fairly new to board, just getting back into racing after a sabatical. I've noted how many folks are ready to help with advice on any number of issues and thought I'd throw mine out there for feedback. Have a Moroso pan (full length of pan approx. 6 inches deep, three chambers seperated by two 3 inch barriers, each with operating trap doors) and I've put two runs on a new motor. Both passes resulted in zero oil pressure when I hit the brakes at end of the run. I have good (not excessive) oil pressure, the pickup is matched to the pan and everything else seems to be in order when running Valvoline 20-50 for the sake of safety.

Also, want to get a backup motor together and I'm new to the east coast (Savannah, GA), any recommendations for both a class motor as well as fast brackets that is close?[/QUOTE

Hi. Wecome to "sunny" Georgia. I moved here 2 years ago (the same year they closed Savannah Dragway) PM me or email me at ArtLeong@earthlink.net

George Mirza · 01-07-2009, 10:02 PM

Sounds like you don't have enough oil in the motor. If you have a high volume pump you are probably sucking most of the oil out of the pan and whats left is getting away from the pick up when you hit the brakes. Try adding another quart and see how it is. If you are running a high volume pump, you may need a standard volume pump. Thats what most of the stockers use and they all turn 7000+ with a stock volume pan. Shutting it off at the finish line is just asking for trouble!

Jim Storms · 01-07-2009, 10:51 PM

Jim, it runs, how cool call me 425 941-8765 Jim Storms

Jim Storms · 01-07-2009, 11:49 PM

Jim, if you are running the aluminum pan i sold you with the car? that pan needs 7-8 quarts of oil, its a wide pan, i had the same problem, once i added about 1-1/2 more it went away...well hopfully thing's are going good. Jim

01-07-2009, 03:51 PM	#1
jmcarter VIP Member Join Date: Dec 2008 Location: Richmond Hill GA (and Port Ludlow WA) Posts: 4,202 Likes: 2,148 Liked 2,934 Times in 901 Posts	Oil pressure on small block mopar Fairly new to board, just getting back into racing after a sabatical. I've noted how many folks are ready to help with advice on any number of issues and thought I'd throw mine out there for feedback. Have a Moroso pan (full length of pan approx. 6 inches deep, three chambers seperated by two 3 inch barriers, each with operating trap doors) and I've put two runs on a new motor. Both passes resulted in zero oil pressure when I hit the brakes at end of the run. I have good (not excessive) oil pressure, the pickup is matched to the pan and everything else seems to be in order when running Valvoline 20-50 for the sake of safety. Also, want to get a backup motor together and I'm new to the east coast (Savannah, GA), any recommendations for both a class motor as well as fast brackets that is close?

01-07-2009, 06:22 PM	#2
bobby Member Join Date: Jun 2008 Location: League City, Texas Posts: 243 Likes: 0 Liked 0 Times in 0 Posts	Re: Oil pressure on small block mopar My Pontiac used to do the same thing with the stock pan, I modified it with a baffle that runs front to rear,parallel with the block. Helps keep the oil around the pickup. Also put one in the real like Moroso sells for the sbc. Fixed about 90% of the problem. __________________ Next time wave all of your fingers at me.

01-07-2009, 07:10 PM	#3
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	Re: Oil pressure on small block mopar [QUOTE=jmcarter;98748]Fairly new to board, just getting back into racing after a sabatical. I've noted how many folks are ready to help with advice on any number of issues and thought I'd throw mine out there for feedback. Have a Moroso pan (full length of pan approx. 6 inches deep, three chambers seperated by two 3 inch barriers, each with operating trap doors) and I've put two runs on a new motor. Both passes resulted in zero oil pressure when I hit the brakes at end of the run. I have good (not excessive) oil pressure, the pickup is matched to the pan and everything else seems to be in order when running Valvoline 20-50 for the sake of safety. Also, want to get a backup motor together and I'm new to the east coast (Savannah, GA), any recommendations for both a class motor as well as fast brackets that is close?[/QUOTE Hi. Wecome to "sunny" Georgia. I moved here 2 years ago (the same year they closed Savannah Dragway) PM me or email me at ArtLeong@earthlink.net __________________ Art Leong 2095 SS

01-07-2009, 10:02 PM	#4
George Mirza Senior Member Join Date: Jan 2002 Location: North Attleborough Ma. Posts: 522 Likes: 0 Liked 0 Times in 0 Posts	Re: Oil pressure on small block mopar Sounds like you don't have enough oil in the motor. If you have a high volume pump you are probably sucking most of the oil out of the pan and whats left is getting away from the pick up when you hit the brakes. Try adding another quart and see how it is. If you are running a high volume pump, you may need a standard volume pump. Thats what most of the stockers use and they all turn 7000+ with a stock volume pan. Shutting it off at the finish line is just asking for trouble!

01-07-2009, 10:51 PM	#5
Jim Storms Member Join Date: Aug 2005 Location: Renton, Washington Posts: 320 Likes: 0 Liked 4 Times in 2 Posts	Re: Oil pressure on small block mopar Jim, it runs, how cool call me 425 941-8765 Jim Storms

01-07-2009, 11:49 PM	#6
Jim Storms Member Join Date: Aug 2005 Location: Renton, Washington Posts: 320 Likes: 0 Liked 4 Times in 2 Posts	Re: Oil pressure on small block mopar Jim, if you are running the aluminum pan i sold you with the car? that pan needs 7-8 quarts of oil, its a wide pan, i had the same problem, once i added about 1-1/2 more it went away...well hopfully thing's are going good. Jim