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View Full Version : Power Mods Y8 Oil pump issues


TheChosenOne
10-28-2009, 11:31 AM
After a solid month or so, after I spun a rod bearing on a freshly tuned motor, I did some research, and it looks like alot of folks have issues with Y series oil pumps at high RPMs. I was on another forum and there were a few options.

1. Shim my Y8, or Z6 oil pump for a high flow rate
2. Use a Z6 oil pump

Now, as far as the shimming goes, has anyone heard of this? and do you think it's a good fix for the issue? Should a Z6 oil pump do the trick? Some people even went as far as using a Z6 oil pump, and oil pick up, and pan, but they said it wouldn't allow for a dip stick, and that doesnt sound like a solid move for me.

Any positive advice would help. thanks in advance! :cheers:
punkr6
10-28-2009, 11:35 AM
lots of people shim the pump, but I would just buy an aftermarket high volume pump. here is a link http://www.importperformanceparts.net/imports/toga_oilpumpsmitsu.html
TheChosenOne
10-28-2009, 12:40 PM
Awesome. I read up on the TOGA, and there were mixed reviews, but it's look like my first option so far. Reps.
TheChosenOne
10-28-2009, 12:56 PM
I found this on another forum, and i'm very interested in how this could possibly turn out if it's done right... http://www.turbod16.com/viewtopic.php?f=3&t=36600&st=0&sk=t&sd=a&start=0
jadakid88
10-28-2009, 03:07 PM
how about putting in a z6 since it seems y8's dont like you...
JJSPEC Racing
10-28-2009, 03:54 PM
I dont usually shim them. More pressure = more drag on engine which causes hp loss which increases at rpm. Even on my Hot Rod I never shimmed the pump. You can do it but check the oil pressure first to see what you have.
TheChosenOne
10-28-2009, 07:48 PM
how about putting in a z6 since it seems y8's dont like you...Lol, that's probably what I'm gunna do, cause shimming would be the move, but I don't have the porting equipment. Plus, that TOGA is a little too much money for my budget.
Black4DrEK
10-28-2009, 10:45 PM
GL homie! when i had the ole Y8 my oil pump went out also.. That when i did my swap!
TheChosenOne
10-29-2009, 12:32 PM
I wish I had the money to do a swap... well, nahhh... I'm hell-bent on this sohc shyit! Throw some DEEZ on dat bitsch!
punkr6
11-04-2009, 08:53 PM
i run the stock y7 pump, but i have a oil pressure gauge I monitor very close...