Broke my PTE GT47-88 (pics added)
10-08-2008, 10:57 AM
#81
10-08-2008, 11:05 AM
#82
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I'm running a 50mm Tial BOV, no backfires. No problem, I'm over it. I know it killed itself when I dialed up more boost, I'm moving forward. Can't seem to find a good deal on a PT 88/98 so I'm looking at a slightly used Innovative 88/98 that I would then send to Jose for a inspection and freshen if necessary.
why not go with one of the FI-X units?...should be easier to fit unless you planning on redoing everything?
10-08-2008, 11:48 AM
#83
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Brian, there is a local class (8.20 cap) that requires an 88mm inlet, so an 88/___ hybrid is the way to go per Jose.
I can't fit a bigger turbo with my current setup, that wasn't my plan a couple of years when I had the kit built.
I can't fit a bigger turbo with my current setup, that wasn't my plan a couple of years when I had the kit built.
10-08-2008, 04:33 PM
#87
https://ls1tech.com/forums/showthrea...=697142&page=2
That is the 98mm version
They are made in 88,91, 94, 98mm.....all extended tip Borg Warner comp wheels.
That is the 98mm version
They are made in 88,91, 94, 98mm.....all extended tip Borg Warner comp wheels.
10-08-2008, 09:19 PM
#88
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I'd buy a 88/xx hybrid if you would make one but it didn't sound like Jose makes those.
I'm turning sour grapes into wine at this point. My 25.5 conversion has been going for the last week a lot of it's done. I'm looking forward to checking all the cool drag radial cars and other FI cars at the shootout, and learning from the guys who are going fast regarding a/w intercoolers and all that good stuff.
I'm turning sour grapes into wine at this point. My 25.5 conversion has been going for the last week a lot of it's done. I'm looking forward to checking all the cool drag radial cars and other FI cars at the shootout, and learning from the guys who are going fast regarding a/w intercoolers and all that good stuff.
10-18-2008, 03:21 PM
#89
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Wow, I just noticed this thread. I'm going to check mine, but I'm pretty sure I have the old version. I'm pushing it a lot harder than you were John, no issues yet. Exact same size motor, 348cid (4.035x3.40).
Too bad we never got our race off
Too bad we never got our race off
10-18-2008, 05:19 PM
#90
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No idea why it broke, backpressure was raised as a concern but not worth speculating about anymore I'm not going to run that combo anymore.
As for racing, drag your junk here I'm not that interested in going there except for a UofM game.
As for racing, drag your junk here I'm not that interested in going there except for a UofM game.
06-30-2009, 01:23 PM
#91
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I know I'm opening the tomb, but I just had my pte88 die on me and it was only six months old with less than 20 miles on it. It never saw over 6 pounds of boost and just died all of a sudden. I haven't been able to figure out why it locked up cause it was getting plenty of oil. It has a -4 feed line and a -10 return. I removed it and it still looks brand new. It sucks because I waited six months to get this thing installed and then it dies within a couple of weeks, wtf 
very wierd.
very wierd.
06-30-2009, 01:32 PM
#92
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Well, I think the pervading opinion is that I had a GT47-88 with the small shaft. I've been told there are many different GT47-88's. I sold my kit and the guy I sold it to is running fine.
I sold my broken turbo to Josh as a mockup so maybe he will post up what he thinks broke.
I got out of the big power turbo game because I don't have the time to keep up with a combo like this anymore but I still greatly enjoy the turbo and blower scene, and will probably do a new blower combo on a car or two.
I sold my broken turbo to Josh as a mockup so maybe he will post up what he thinks broke.
I got out of the big power turbo game because I don't have the time to keep up with a combo like this anymore but I still greatly enjoy the turbo and blower scene, and will probably do a new blower combo on a car or two.
06-30-2009, 02:58 PM
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My 47-88 has held up great so far, mine is the older shaft version. 1000hp with ease on the old motor, we are going to crank it up on the new one.
We had a similar problem with a PT88 a couple of months ago. Brand new and it wasted itself. Looked like the nut came off, and beat the hell out of the impeller.
Precision did warranty it.
We had a similar problem with a PT88 a couple of months ago. Brand new and it wasted itself. Looked like the nut came off, and beat the hell out of the impeller.
Precision did warranty it.
06-30-2009, 03:24 PM
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Well I'm hoping to get the same warranty, this was a brand new unit purchased from forced inductions (great guys). I shipped it out to them yesterday, so hopefully once they get it they can shed some light on what the problem was.
06-30-2009, 05:37 PM
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C) I hadn't thought there could be backpressure issues. I ran the car at 16psi and went 138, and then I put the boost controller at 22 psi on the next pass. On that pass it pulled good at one point but then blew off before the 1/8th and I ran 115mph. Could backpressure be an issue?
Kurt U. and Don B. (tuner) point to oil draining issues, I'm curious if anyone has some more thoughts on this.
Hey Neil, if you see the thread and are around, can you describe what the damage is in the turbo?
Kurt U. and Don B. (tuner) point to oil draining issues, I'm curious if anyone has some more thoughts on this.
Hey Neil, if you see the thread and are around, can you describe what the damage is in the turbo?
*edit* Sheit... I didnt notice the date on this old thread till now... sorry!
06-30-2009, 07:10 PM
#96
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John, I didnt see anyone answer up to this thread and I know I am not a builder.. but you are familiar with my setup, a PT-88 midframe behind a 408 rearmounted... Backpressure isnt killing us (yet), so I would find it difficult to think that it would be your issue with cubes and a large frame turbo.
*edit* Sheit... I didnt notice the date on this old thread till now... sorry!
*edit* Sheit... I didnt notice the date on this old thread till now... sorry!
06-30-2009, 09:04 PM
#98
Great!!! This is starting to get me spooked!! I bought a PT76GTS as sugested for a rear mount on a 346 that was going to go to a 427. Wound up building a 408 and was told the 76 would not work!? So now I sold it (for a loss) and bought a GT88 (was instructed would be perfect) and now I see these issues!!! WTF!!! So have I been scammed?
06-30-2009, 09:40 PM
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Great!!! This is starting to get me spooked!! I bought a PT76GTS as sugested for a rear mount on a 346 that was going to go to a 427. Wound up building a 408 and was told the 76 would not work!? So now I sold it (for a loss) and bought a GT88 (was instructed would be perfect) and now I see these issues!!! WTF!!! So have I been scammed?
Hahah nah... I am running a smaller frame PT88 on a 408 Rearmount... unless 887RWHP isnt close to enough for you... youre fine!
06-30-2009, 10:02 PM
#100
800 rwhp is the target. What ar do you have? How fast does it spool for you? What size piping are you running for the air going up front? I am running 2.5" to the front mount intercooler then 3" out of the intercooler. I have a 38mm blowoff, I am thinking of upsizing it.