Man, I hope all the folks who have had bad experiences start coming out of the woodwork. These two experiences above are enough for me to cross any Pumaspeed product right off my list.
I guess I’m down to the Revo turbo from Ron. Hopefully none of those blow up in the next 6 months..
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Hundreds of people are using Puma turbos in our cars. There are a few failures. It's the way it is. After we see a few hundred Revos installed and putting in some serious mileage there are going to be just as many failures. It's just the way it is.
The pumaspeed turbos are perfectly fine if you don't run them too hard. People trying to chase that magic "300 HP" number are inadvertantly severely overspinning the turbo the get that kind of flow out of them. I'd say they are perfectly reliable at a few PSI lower boost, pusing about 260-280 HP (guesstimate).
It is a lot like running nitrous. Sure the 100 HP shot is fine, but is chasing that last few extra HP and stepping up to the 150 HP shot if where you messup. When you are at 8/10 or at 9/10, you are fine. It is that last tenth that always kills you.
You are correct this is the reason for some of the Puma failures but some of the newer ones aren't failing because of overspinning them, they are brand new and failing. Kind of like my Ford OEM A/C compressor failed at 4,000 miles and had to be replaced. It happens.
You are right that This is the Problem..... they are run to hard and everyone is chasing the infamous 300whp. This is something I am not doing with my Garrett....im perfectly fine with anything between 250-275whp.
Again I don't think this is the only reason they are failing....brand new out of the box failing is different from spinning it too fast failing. Sucks either way. Sorry for all who are having these issues.
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All that is to say that you can't throw the baby out with the bathwater folks...we're still in single digits percentage-wise of failures. That is normal and standard margin for pretty much any product. I wouldn't go banking on MRX or Revo or any other turbo until we've seen the kind of mileage and abuse put on them that the X47s have, not to mention the volume sold.