The design wasn't the issue.

I believe the suppliers MAP was using (which I think they tried quite a few) had inconsistent product. meaning some were great and others were not great. They had enough trouble trying to source good/reliable and quality parts that they discontinued the line as it wasn't profitable anymore.

I am sure in order for them to go to market with a product at the price point that they thought made sense and the market could bare that they just couldn't make any money, simple business really. In order to guarantee product reliably they would probably end up charging FP type prices which isn't what they wanted and didn't make sense. I think they are now working on bundling pre-existing turbos from big manufacturers which to me makes more sense anyway.

 

I'd have to agree that there were enough unexplained failures to indicate that there was an issue with these turbos.

 

Agreed! I have almost 40k miles at ~30psi on mine and its in perfect condition.

 

Where was your feed line from the head or the oil filter housing and did you use the restrictor or no?

 

i believe it was Ian i spoke to. told me to run it from the head with no restrictor. i was told to use the OEM oil feed/return setup. this was all on a IX.

 

Ahh ok well that was your problem then, not enough oil to the bearing I would say. Mine is off the oil filter housing with the restrictor. I guess it doesn't matter but was wondering being all of the ones I saw fail were fed from the head which makes me believe it was an oiling issue.

 

that all may have been part of the suspected quality control issue. i'm 99% sure i was told the turbos were meant to run off the stock oil feed. i vaguely remember a thread about a batch that got sent out with bad oil feed lines. i think those were MAP turbos. they were still stock location, but the I.D. was smaller or something crazy. after reading that is when i called them. i wanted to ask about proper oiling before i installed mine. i think that was before my rebuild.
if they were meant to run from the head, but weren't built that way, that would explain a lot. i wonder if the few people that have surviving MAP turbos all ran lines from the filter housing. hm...
if not, then it really would seem to be random (assuming all were installed correctly, of course).

to this day, however, i will stand by their customer service. they rebuilt my turbo quickly, upgraded to the anti-surge housing for free, and gave me credit when the second one died, since they weren't selling them any more.

bottom line is they aren't selling them any more. i'm pretty sure we all know why; i doubt it was from too many install errors. for anyone that has one still functioning, that is the luck of the draw. enjoy it and get every mile you can. i was very happy with mine.

 

I agree with you 100%
I had 3 failures, each within 3-4 WOT pulls, but they did not hesitate to give me credit in the end, for a GTX35. I still deal with MAP for all my purchases

 

I've had my EF2 since not long after they came out and haven't had any issues with it, for what it's worth.

 

i've noticed that. it seems the OLDER ones are holding up fine. i'm not sure what changed or when, but the later stuff seemed to be hit-or-miss.

 

I find that odd being I was told as a beta tester to run off the oil filter housing. They supplied me the fittings, the line and never had an issue to this day. This is why I am asking being why I say "installed correctly." I was told by Chris Carey to install from the oil filter housing and that's how they were doing them. Maybe things got lost in transition and or maybe the sales reps could have misunderstood idk I don't have that answer but all I do know is it seems that all the issues were coming from the guys who an off the head. I find it interesting that they did have failures being I never had an issue and if that was the case why change designs or whatever that may have happened.

 

i'm not sure. either. like i said, i was going to run a line from the oil filter housing but was told not to. i don't remember the exact conversation. i don't remember being told, "you don't have to run a line from the housing". for some reason i thought i was told not to. doesn't seem to make sense for a journal bearing, IMO. i wouldn't imagine the filter housing pushing out so much pressure that it was too much.

again, it's been over a year, so the details are fuzzy. i did it all by phone, so have no emails to reference. bleh.

 

That's ok what is done is done, but yeah to much oil will never hurt a bearing in any way shape or form. And please don't think I am trying to bust your ***** or nothing I am trying to figure out what went wrong that's all.

 

Not a problem! Maybe it's not too late to save others from a similar fate.

 

Hopefully we can as a group, being isn't that what we are all here for? One big support group?