Brettus turbo 11
07-30-2013, 05:57 PM
#552
Got hold of a Racing Beat 3" rear pipe so getting that adapted to the FEED muffler . In meantime I put stock muffler back on and ................. get better flow from that than what I had before . Never realised the rear pipe I had on was smaller than stock (2.25 vs 2.5)- grrrrrrr.
Mazdaedit can now tune to over 200% loads (up to 400%) so no barriers there anymore .
Only worry now is my maf tube which is 3% less x-sectional area than stock . May see if I can get it bored out or just buy a new one . Reaching 4.94v so think i need a little headroom.
Mazdaedit can now tune to over 200% loads (up to 400%) so no barriers there anymore .
Only worry now is my maf tube which is 3% less x-sectional area than stock . May see if I can get it bored out or just buy a new one . Reaching 4.94v so think i need a little headroom.
Last edited by Brettus; 07-30-2013 at 05:59 PM.
07-30-2013, 10:15 PM
#554
I get your point and hope you are wrong . I actually think it only started happening when i upped the oil pressure .
I can also machine a couple of mm out of my existing tube an get and extra 20-30 g/s of headroom. Will be easier to calibrate than a much bigger tube.
I can also machine a couple of mm out of my existing tube an get and extra 20-30 g/s of headroom. Will be easier to calibrate than a much bigger tube.
Last edited by Brettus; 07-30-2013 at 10:19 PM.
07-31-2013, 03:54 AM
#560
Un-Registered User
08-01-2013, 08:50 PM
#562
Without boost - I'm pretty damn sure this wouldn't be happening . I'm more inclined to think it's air leaking past the turbo seals blowing air into the sump combined with the extra oil pressure sloshing oil around more violently than previously causing it all.
BTW : I'll happily accept your ideas on this but I really don't think you have earned the right to take a sarcastic tone with me , given your complete lack of experience with this scenario on these engines.
Last edited by Brettus; 08-01-2013 at 10:06 PM.
08-01-2013, 10:25 PM
#566
Unless of course they reused the springs and control rings and just replaced the orings in the oil control rings.
08-02-2013, 12:03 AM
#570
A journal bearing turbo should only see 10psi (Idle) to 66psi (WOT) , without having a gauge attached to your oil feed line its impossible to know how effective the restrictor is.
Turbo oil pressure - Bulletins - TurboMaster
Turbo oil pressure - Bulletins - TurboMaster
08-02-2013, 12:16 AM
#571
SARX Legend
iTrader: (46)
I am having the same issue. I am going to install a restrictor and use a properly sized catch can and lines (mine is small). I can hit well over 100psi at redline so that is way too much. I also ordered a turbo oil pressure regulator from Freelance Motorsports, it is designed specifically fro rotary use. I will install it inline on the -4AN feed line. We shall see if I need both it and the restrictor. But the oil pressure at the turbo is way too much either way. I'm not sure why the stock Greddy turbo guys are not having the issue.
08-02-2013, 01:18 AM
#573
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Join Date: Apr 2013
Location: Chicago
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Well looks like I am off buying something for the Oil PSI. Good info 9K and shady! I just installed the REmedy OIL PSI mod...
At stock I never really seen my PSI go over 65, then again it may be different for each car.
At stock I never really seen my PSI go over 65, then again it may be different for each car.
Last edited by Mercatis; 08-02-2013 at 01:25 AM.
08-02-2013, 09:24 AM
#575
SARX Legend
iTrader: (46)
Yeah mine smokes. Mainly at idle after a hard run. If I drive casually and keep oil pressures low then it doesn't happen. The issue is exacerbated when the oil level is at max, if I keep at the middle of the dipstick it doesn't do it as much.