need Help with turbo setup
Thread Starter
Teching In
Joined: Sep 2007
Posts: 7
Likes: 0
From: South East MI
need Help with turbo setup Hi guys all my specks are in my old sig I just dont remember my password. so i have a 99 Z28 with the sts setup with a 76mm turbo. I'm having problems with the oiling system. I have a slp oil pump on the car and at idel the car is at 50 to 55 oil presser, the problem is I dont think my scavage pump is pumping the oil back good enough an it blew the seals out of the turbo. do those pumps get weak over time? is anyone using an aftermarket pumps or are there any other options I could go with?
Thread Starter
Teching In
Joined: Sep 2007
Posts: 7
Likes: 0
From: South East MI
The shop I have it at now we talked an that was an option to go with that pump. so we called weldon an they told us that the continus use that the pump would haft to handel. they dont think there pump will hold up. how dose he have his setup? did he haft to put a 1 gal cell in the back an run the oil to that?
The car only had like 75 street miles and some dyno pulls. The tuner destroyed the motor and then it got taken apart to go to a front-mount setup.
It ran fine for him though for the limited time he drove it.
It ran fine for him though for the limited time he drove it.
Joined: Jun 2004
Posts: 1,501
Likes: 7
From: Ft. Irwin, California (But Virginia is home)
Hi guys all my specks are in my old sig I just dont remember my password. so i have a 99 Z28 with the sts setup with a 76mm turbo. I'm having problems with the oiling system. I have a slp oil pump on the car and at idel the car is at 50 to 55 oil presser, the problem is I dont think my scavage pump is pumping the oil back good enough an it blew the seals out of the turbo. do those pumps get weak over time? is anyone using an aftermarket pumps or are there any other options I could go with?
Concerning seals, unless the 76 differs from the 60 and 67 there are no seals for the oil. Rings similiar to whats on a piston are mounted to the impeller shafts and hold the oil in the casing. Too much pressure and the oil gets pushed past the rings.....thus oil in the intake and exhaust. Which brings up the final point. If the oil pressure is too high you should be seeing it in the exhaust AND the intake pipes.
Once you get the prob fixed you'll have to clean the intake piping w/ a rag (which is a PITA....done it 2x myself). If you don't, oil vapor will get on the MAF and IAT and screw the readings up. PCM then overcompensates for the jacked up values resulting in the car runing weak.
Good luck
