Is the FP kit a filter or a restrictor? seems like a restrictor to me.....

Supplying oil from the filter housing has been popular for yrs, especially on NA-to-turbo builds, before BB turbos were even so popular in aftermarket.

Many ppl using journal bearing turbos required oil restrictors, high oil pressure blew the seals.
On my 98 GTi, I use a -4AN hose off the oil filter housing, I see as much as 90psi off the housing on cold start, never had any issues, other's werent so fortunate.

Either way, if discovering oil pressure issues on turbo's that "you" sell is the truth to many many past blown FP turbos....than that's really sad to miss such an obvious design spec.

This is NOT AN FP TURBO PROBLEM. This is not even necessarily a mhi design problem. I would not even say that it is a problem. This oil line is a solution, for cars meeting certain criteria. Any of the stock, and stock appearing turbos being fed oil from the head, will more than likely live as expected when running the intended boost, not being used in any other extreme conditions such as road racing etc, and when you are not running larger oil clearances in your engine. This is racing people. You modify your car, and race it, things happen. The fact that they offer a warranty at all is brilliant. Generally the racing world does not have warranties. Certainly I am not implying that you are expected to go out and buy a red, and run 20psi to the grocery store and back. However, nobody said this is an oil line to make sure fp turbos live. Nobody in this thread has said thier fp turbo failed and fp didn't take care of it. In my op I did say there were some failures out there of stock/stk appearing turbos. And I'm sure in a hypathetical situation, fp did not get the reputation they have by screwing people over. Sorry to go on about this, but I have grown up in the racing business, and I am loyal to good people and good products. Supporting bad products/companies is of no use to me.

To recap, this oil line is probably a good piece of insurance for any journal bearing turbo on evos. For stock and stock appearing turbos you probably should have the line if you are running higher boost, in boost for extended period of times, running thinner oil, or running extra oil clearances.

GrocMax.. Sorry if I have taken any liberties, or spread mis info.

So is this saying it's not necessary for motors that aren't built? Also, is this "new" one required for FP to honor our warranty, even for people with the first line?

honestly...although i consider myself a fair and understanding person...this is bull**** from FP to come up a year after releasing their journal bearing turbos and say that they will not honor warranty if this line is not installed.
if so..
1) this means that this whole time all journal bearing turbo users from fp (red,green,white etc) have been exposing their turbos to dangers of oil salvation.
2) if this line is critical enough to void the warranty then this line should have been sold alongside the turbo as a "kit" even if at an extra cost.
3) where can i order...i guess that i will just bite the bullet to ensure that my turbo is run safely. hahahah

**Edit** tried to look and couldnt find it on forced performance website?!
p.s. Jimib..i like your explanation in post #47

my .002

moosa

Nobody can know everything the first time around. FP has identified a problem and offered a solution on how to keep an overworked turbo alive.

I believe the original part of not honoring the warrantee had to do with them discovering that the OEM line is poorly made and has problems with corrosion build up? They created a solution then and basically were saying Mitsubishi did a crappy job of making these lines, and if they are going to pay for any failures, they are going to eliminate a potential problem caused by poor quality OEM parts. FP will do you right, but they aren't going to put their name on the line without covering all the basics that would otherwise be out of their control.

I've got an "old" head feed line that's I'll be using and I have no worries. I also don't have B-shafts and I'm on stock bearings though... :D

Thank you. I actually had not looked at the thier site in the last couple days since someone said the install directions were up, so sorry if this is old news, but looks like the product is up on thier website now.

http://store.forcedperformance.net/m...Lancer-TurboHW

Copied right from thier site:

There ya go. With that being said, with this product being out thier, would you be wise to not spend $150 for this added insurance?

As far as them selling evo turbos for a while now and just coming out with this... Few things... They are not the only one. They are just the first (to my knowledge) to take this extra step. Also this goes back to this is racing. We take things to thier limit, and then we come up with solutions to take them even further. Like I said thier is nobody in this thread saying they had an fp turbo that was trashed. Let alone one that was not repaired by fp.

The MHI document is made by my colleague, it is just a recommendation, nothing more, the bearings build oil pressure themselves, we tested turbo's at 7 psi in normal conditions, the turbo did not fail or anything. If you can post some pictures of the failures I can do a recommendation, picture of bearings etc. 35 psi is more then enough for journal type bearings.

I might suggest you do this to your own vehicle(s) then post up the results.

I'm taking 30 minutes to 1 hr of normal operation in the death pool.

I never knew that stock Mitsubishi turbo bearings built pressure by themselves. Guess there's no need for supplied oil pressure at all :) How much pressure do they build by themselves, and how do they do it?

You need a little bit of oil pressure, that's all. not suggesting to run 7psi or anything, 35 psi is more then enough. You can't say the failures are related to oil pressure cause of running less then 45 psi, I would like to see some proof of that. Don't seem likely to me. I test turbo's all day every day.

Face palm... Read... They have actually recorded less than 25psi at the cylinder head. I am not really sure what you are doing in this thread. If you are being defensive about mhi turbos, nobody has said anything negative about them. With your experience in turbo testing are you really going to say this line will not offer any added benefits?

F this i just bought the damn install kit from them last week (142.00) which came with what was suppose to be everything needed to install this turbo
now your saying i should spend another 150.00 for a stupid as oil line
i wish i would have never bought this turbo i dont even have it on the car yet and its costing me money

So would it be a problem to run a stock IX turbo at 2+ bar with a stock oil line?

How many failures have been reported for Greens and Reds combined for the Evo? Versus how many sold? This type of info would let people know whether they should spend the extra money on the FP lines or keep the stock line.

Basically what I am asking is... how sure are you that the stock oil line is a problem? Seeing as how this is your second try at a new line, I'm wondering how sure you are that this will clear up the failures your seeing.

I started a thread on FP reliability several months ago and everyone told me they are very reliable. But isn't this threads existence proof FP's turbos have questionable reliability?

I have tried to stay fairly diplomatic here, but people please read.. How many reported fp turbo faiures are in this thread? None... if you started a thread on here about the reliability of fp turbos, and the evo community told you they were reliable, why are you asking again?

I think this will settle all of this. This is a e-mail message I got in response asking about this issue.

We recently got a PDF from MHI, it wasnt easy but we convinced them we needed something in writing. Anyway, MHI wants 45psi oil pressure at the turbo. Many motors never generate that much at the head.

The Gen2 line goes to the filter housing to tap into the 100+psi oil pressure source, that line uses a .070" restrictor to limit pressure to 70psi (in most cases, lots of variables here of course).

If you want to change to the Gen2 line, then give us a call to order it and I'll deduct what you paid for any other line you bought from us.

Al the engines we measured were a little different, but none of them met MHI requirement for 45psi at ful power, not even with the Gen1 line from the head to the turbo.

I recommend you update your line, we are pricing the gen2 line kit at cost, so it is as affordable as we can make it, and if you bought a previous line setup from us we can deduct that expense from the cost of the new line since the gen1 line kit is now a component of the Gen2 kit.