Oil pressure problem
08-07-11, 05:31 PM
#1
Oil pressure problem
Ok My problem I'm tryin to sort out now is oil pressure at idle is 30-45 when nder a loud it drops ti 15-30 psi. It bucks like crazy and looses power clutch in it craps and spits. On the freeway it is halfway decent having to stay in 4th gear wasting fuel. It's a monster street port TII engine(S4) stock S5 turbo with stock oil feed lime and a AN-10 oil return line until I get get the rest of the stuff I need to upgrade my turbo. I'm runnin a Microtech MTX-8. The idle jumps up to 2k when warm and trys to stall out. It did a little better when I vented the oil filler neck off of the coal canister. I just routed the middle plate breather line to the coal canister till I can get a oil catch can. When driving I can clutch it and rev it to about 3-4k and it pops like crazy!!! I'll get a video later if what I did didnt fix the problem. I'm still waiting for my Microtech Dongle cause the one I have I was told it may be a LTX-8, cause it can be tuned via laptop software.
08-07-11, 06:54 PM
#2
A little more elaboration would help matters, but I think I understand enough of it to help a little.
It seems like you may have 2 separate issues. Monster street port... probably your bucking issue. Someone else chime in here that knows more about ported engines, but I think they favor more spark advance. Don't quote me on that, it's enough to get the ball rolling on a discussion at least
The oil pressure issue, that could be a lot of problems. One major common issue is the o-ring behind the front cover getting knocked off during installation. Poor bearing clearances or a clogged strainer could be other possibilities.
It seems like you may have 2 separate issues. Monster street port... probably your bucking issue. Someone else chime in here that knows more about ported engines, but I think they favor more spark advance. Don't quote me on that, it's enough to get the ball rolling on a discussion at least
The oil pressure issue, that could be a lot of problems. One major common issue is the o-ring behind the front cover getting knocked off during installation. Poor bearing clearances or a clogged strainer could be other possibilities.
08-07-11, 10:38 PM
#4
I'm using a AN-10 oil return line on my stock S5 turbo. Can that be the problem??? I need to know I have the videos here...
http://youtu.be/H5yhY98YC_o
http://youtu.be/tNwBiKmZpg8
http://youtu.be/H5yhY98YC_o
http://youtu.be/tNwBiKmZpg8
08-08-11, 10:16 AM
#5
No, the return line size has no bearing on oil pressure. It's the supply pressure that you're worried about.
here's what I was talking about:
http://mazdatrix.com/faq/oring.htm
here's what I was talking about:
http://mazdatrix.com/faq/oring.htm
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