22lbs from PT88 too much?
 

I have a forged 370 with a PT88. Made good power, 840-ish to the wheels at 22lbs.

Turbo locked up in about two weeks of driving. Send it back to precision, they are saying the motor is too big for the turbo, thrust bearing on the turbo went bad, and we should back the boost down to like 17 lbs..

does this sound right? :(

sounds like precision.......


and why I wont own one.

My first turbo was a precision......after two rebuilds and about 2200 total, sent it to another company. They said it should have never been built and was doomed to failure.
That was my last precision turbo. Funny thing is, I have never had any other "mysterious" failures ever since. Just my experience though.

i have heard people running that much boost on that size engine with no problem.

Subscribed. Interested in how this shakes out. I have pretty much the same setup and intend to crank up the boost once I get my bottom end forged.

Look at MIGHTYMOUSE's car. Similar boost levels with an 88 on a 364 and running 8.7's.....

Sounds fishy to me

He's not running a PT88 if I remember correctly. Atleast not a regular one.

Yes he is... Just texted him to confirm

I believe MM is around 24 psi with that turbo about maxed out.
I have heard of a string of PT88 failures lately.

Hmm seems like a Bullshit response from Prescision... subscibing.. Ive got an 88 now and plan on 25lbs...

ive run mine to 22psi and about 2 days later on the street it just locked up. they said the thrust went out. they upgraded to the new 360* thrust and larger bearing. I just got it back and will start it up tonight. 6 week turnaround. also they said it needed more oil. so i upgraded to a -4 feed. i was running a -3 no restrictor. i have a 370 also. i know the turbo has more in it. my boost controller was on 57% i would think 30psi is possible with it set on 100.

I could have sworn that he told me it was modified/upgraded somehow. I may have gotten him mixed up with someone else.

i have had the only upgrade available done to mine. 360 thrust b4eariung

:sack:BS from percision IMO.... I am running 20+lbs of boost with a 408ci on my PT88... no problems... yet :D

I hurt several t4 pt 88's with a 408, like 4 of them. They kept telling me it was an oiling problem even after I told the 8th person my combo. On the 9th time they told me I was pushing it too hard/overspinning it.

my friend had a pt88 failure as well. They told him it was a oil issue.

Its the famous line.....oil issue....just like a trans guy saying its the convertor....

I had a pt88, ran 24-25psi for 7 years with a 383.

Sorry to hear that I have been thinking about a upgrading to a PT 88 and this is bad news.... Do you have a good blow off valve?

ah its a cheap 88mm, if you want a bada$$ 88mm, get a t6 airwerks 88,youll pay more but it will be better.

Better off dealing with Jose @ Forced Inductions.