fastbarry

i just finished building a junkyard 5.3 with a ebay gt45 for my sand rail. i have had it out on the sand one time for about 3 hours of tuning. the oil seal in the compressor housing is leaking now.

i am running 12 lbs of boost non intercooled. i did not have a bov in the system and the turbo would bark pretty bad when you chop the throttle under full boost. now i am fighting this oil leak from this compressor.


is it possible that running without a bov knocked the seal out?

thank you

Beanslsxnova

iTrader: (1)

Not saying it's not possible, but highly unlikely. Every time I've had turbos push out seals it's from poor oil return or to much oil being fed. I have a .080 oil restricter on my gt45 I got right around 1000miles on it with no blow off valve and so far no issues.

denmah

iTrader: (2)

ive never had one go bad same as beans said.

is the drain large enough, is it below oil level? is there a restrictor?

etc etc

fastbarry

the drain line is a -10 hose and fittings. the feed is a -4 with out a restrictor.

the turbo is mounted over the transaxle and does not provide a nice path for a drain. the return line has about a 5 inch drop over about 28 inches of length. i have a fitting welded into the side of a f body oil pan about 1.75 inches down from the pan rail. i believe it is right about oil level.



when i have the car sitting and idling for 10-15 minutes while working on my tune is when i really start to notice it as oil starts to puddle in the intake.