Forced Performance's Newest Turbo Oil Feed Line
This is not the case. DSMs fed the turbo from the head from the factory.
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Grocmax has forgotten more about turbos than I ever knew, but I think that the stock oiling system (from the head) will have lower than needed oil pressure with or without replacement bearings. In other words, oiling from the head with bigger (or higher spinning) turbos is likely to put you into problems, and this change to oiling from the filter housing is a great solution for all of the above...
I would love it if Forced Performance would open up and discuss with the forum how they ended up with these different oil feeding strategies and why. What type of failures and how many did they see. Does this feed line need to be used with an HTA 35R like I have? If so, does that mean they have seen a significant number of HTA 35R failures?
I don't like all this mystery.
I don't like all this mystery.
Ccrain.. This is for journal bearing turbos. An HTA 35R is a ball bearing turbo that requires less oil.. In fact too much oil pressure is a lare problem with bb turbos. Also again, this is not a problem with fp turbos. It is an issue with the mhi evo (7 thru 9 I believe) turbos and modified versions of thos turbos. Othe journal bearing turbos most likely will benefit from this line. Also obviously I am an FP fan, but with any company, you should check with that company, before making comments about something being bs. This particular company imo is eager to help there loyal customers out.
Last edited by jimib; Jun 16, 2009 at 10:41 AM.
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Dude I feel the same way. I spoke to Rob back in April and they didn't mension anything about changing the design nor have they mensioned it here on this site probably the best place to do it. I used the version 1 line and inline .100 orfice now I wonder if I'm getting pressure.
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I think this is what people are concerned with, note exact wording;
BALL BEARING TURBOS DO NOT APPLY TO THIS CONDITION
There have been some isolated incidences of repeat oil supply related failures on high boost (high shaft speed and high load) 'built' engine cars. An oil supply related failure is rather easy for us to diagnose, but difficult for the car owner to verify, very few of you have the equipment and/or instrumentation to monitor oil pressure and temp AT the turbo. An investigation into causes was performed, this included high-load overspeeding of turbos at various minimum oil supply pressures, oil viscosities from 0W-30 to 20W-50, and doing a post-mortem on partial brg failures and at what point they occur, we discovered that in some instances there is not adequate oil pressure available at the head outlet. We can't tell you what your particular car has for outlet pressure at the head if it has been modified. Repeat oil supply related failures suck for everyone involved, heres the solution.
Recommended for: Engines with 'X' series main/rod bearings or engines that have higher than factory brg clearances, road race where high oil temps and high boost pressures are in use continuously, very high shaft speeds/loads.
Using the turbocharger for higher boost race gas applications requires the use of the full flow oil feed line to supply adequate oil to the thrust bearing of the turbocharger. As of June 1, 2009 we will no longer offer free repair service to Reds run at high boost with the factory oil feed line. See the related link at the bottom of the page for the recommended oil supply solution for high boost (25psi or more) applications.
There have been some isolated incidences of repeat oil supply related failures on high boost (high shaft speed and high load) 'built' engine cars. An oil supply related failure is rather easy for us to diagnose, but difficult for the car owner to verify, very few of you have the equipment and/or instrumentation to monitor oil pressure and temp AT the turbo. An investigation into causes was performed, this included high-load overspeeding of turbos at various minimum oil supply pressures, oil viscosities from 0W-30 to 20W-50, and doing a post-mortem on partial brg failures and at what point they occur, we discovered that in some instances there is not adequate oil pressure available at the head outlet. We can't tell you what your particular car has for outlet pressure at the head if it has been modified. Repeat oil supply related failures suck for everyone involved, heres the solution.
Recommended for: Engines with 'X' series main/rod bearings or engines that have higher than factory brg clearances, road race where high oil temps and high boost pressures are in use continuously, very high shaft speeds/loads.



