geoguy1369

iTrader: (2)

Mine seized the bearing on exhaust side but did not hurt wheel or crack the housing.

roastin240

iTrader: (13)

This is the type of feedback I have been waiting for. I had my doubts with the 88mm BB units. I read somewhere else some ford guys were toasting them as well. I will stay away from it. I dont see it being a good choice with the small turbine combo on anything other than a 4.8, maybe 5.3 for big power. Nice numbers on that small turbine combo S480 though!

Forcefed86

iTrader: (4)

When you can get an S480 OR S488 clone for the same price range, I don’t know why anyone would gamble on an 0n3 non-rebuildable center section with questionable reliability?

I’d bet money a box stock $640 S475 T6 would outperform that on3 88.

ls13ater

iTrader: (3)

My main thing was I had a 78/75 on 3 with back pressure issues / braking up, bought a used 88 on 3 from here for a deal, it worked great and made decent power (I thought) so I hit them up asking if there was any benefits from the 88 standard to the billet, mostly because my turbo kit was already done I wanted more power, a quicker spool would not be a bad thing considering it's a stick car, they were real nice/ quick response, I was like f it worst comes to worst I will go to a borg in the end, and that's pretty much what happened,
I thought I had read on there site before I bought the 88 that all there turbo's are rebuildable(I may be wrong ) lol

SLOW SEDAN

iTrader: (13)

I went from a 76/75 to the 88/84. The 88 was physically larger and did go a little faster.


I would hope so, an 88/96 exhaust wheel should flow more.

Personally I got sick of messing with cheap turbos, not having compressor maps, not able to rebuild, no warranty, etc but was certainly fun for awhile! No complaints as they have a place in the market and many are satisfied with them.

ls13ater

iTrader: (3)

I need a like button option

Game ova

I had a precision that went bad, but couldn't rebuild it....as I couldn't source the parts.

SLOW SEDAN

iTrader: (13)

Precisions don't have maps either so they are a double fail to me.

That said Precision will rebuild turbos if you send them in, price varies but they will get it done. Friend just sent a pair off and received them back a few weeks later.

Game ova

The issue I had with precision was, they wouldn't give me a ballpark on a rebuild....i even told them what was wrong with it. Sounded like a damn robot, "just send it in, we'll take care of you". I cut off my nose to spite my face, but that's how I ended up with the on3. And to be clear, I wasn't looking for an exact dollar amount.

geoguy1369

iTrader: (2)

I made 720whp on a mustang Dino at 22 lb with a 5-3 at eight and a half to 1 compression. The Billet wheel definitely made more power but the ball bearing unit is where I kept having issues. I had a 76 mm on 3 on the same car for four and a half years and never had a single issue. If any of you guys can blink the other forums issues with the 88mm ball bearing unit I would appreciate it as I'm trying to find out what the cause is. I plan to cut the Center section in half tonight to look at the oil passages to see if that could be a possibility of a problem.

ls13ater

iTrader: (3)

The problem lies with them trying to make shift a bearing to fit the same journal bearing housing instead of doing like most company's and casting a different chra, I have a buddy with a iroc and there 76mm went 6.0@115 in the 1/8 making 550-600 and it's been a damn good turbo

geoguy1369

iTrader: (2)

geoguy1369

iTrader: (2)

so this is what I found. This is the exhaust side showing. A turbo shop that I asked about this told me that the brass journal is meant to spin in the housing half the speed of the shaft of the turbo. This makes absolutely no sense to me. Can anyone with a bit more turbo knowledge chime in?

kbracing96

iTrader: (25)

Yes, that shop is correct. The shaft spins in the bushing and the bushing spins in the housing. This divides the shaft to bushing speed buy about half. Makes it a manageable speed for the bearing to handle. 100,000+ rpm is a hell of a lot to ask out of an oiled bushing type bearing. Also why there is so much clearance in a journal bearing turbo.