MAP EF-series Turbochargers results thread
#1681
Evolved Member
iTrader: (9)
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 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.
#1682
EvoM Guru
iTrader: (50)
...
mine was installed correctly, no boost leaks. i verified oil from the return line. oil feed was from the head, just as they advised (yes, i called). i've dealt with MAP for quite some time and we've been all over the turbo after it died both times. fact is, sometimes they just fail. in my case it wasn't user error. i've had no problems with any other turbos. of course, i can't speak for others. it's really good that yours is still working, but to say all failures are user error is a blanket statement that just isn't true.
mine was installed correctly, no boost leaks. i verified oil from the return line. oil feed was from the head, just as they advised (yes, i called). i've dealt with MAP for quite some time and we've been all over the turbo after it died both times. fact is, sometimes they just fail. in my case it wasn't user error. i've had no problems with any other turbos. of course, i can't speak for others. it's really good that yours is still working, but to say all failures are user error is a blanket statement that just isn't true.
#1684
EvoM Guru
iTrader: (3)
mine was installed correctly, no boost leaks. i verified oil from the return line. oil feed was from the head, just as they advised (yes, i called). i've dealt with MAP for quite some time and we've been all over the turbo after it died both times. fact is, sometimes they just fail. in my case it wasn't user error. i've had no problems with any other turbos. of course, i can't speak for others. it's really good that yours is still working, but to say all failures are user error is a blanket statement that just isn't true.
#1686
EvoM Guru
iTrader: (3)
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.
#1687
EvoM Community Team Leader
iTrader: (60)
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.
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.
#1688
Evolving Member
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 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
#1691
EvoM Guru
iTrader: (3)
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.
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 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.
#1692
EvoM Community Team Leader
iTrader: (60)
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.
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.
#1693
EvoM Guru
iTrader: (3)
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.
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.