lsxmalibu

iTrader: (50)

i believe alot of turbos are made at the same factory, but the parts may be from a different supplier and different names put on them,,,,,Ive read the on3 ceramic ball bearing turbo is made at the same plant as the magnum so go figure...

BLWN1

iTrader: (6)

Ouch... Funny you mentioned that cause I hear the same thing...?

Maybe that's why he knows what china smells like?

b20forlife

iTrader: (4)

Lmfao

Mattsv8

iTrader: (7)

i plan on running low boost with the 100 percent stock motor then adding my 317 heads with springs and my own hand port work, with more boost, dyno that then put the 370 motor with forged internals in it with 18psi and hopefully make 700 to 750 whp. i know it can be done with these motors and may not evan need 18psi to do it. i deff will keep everyone posted on what i get.

Beaflag VonRathburg

iTrader: (176)

Anyone try / really push their 60mm wastegate? $200 is hard to argue with if it works well.

Mattsv8

iTrader: (7)

I don't know about the 60mm. But the car I told u that had the 67mm at 11 20s and 76mm at 10.29 133mph has the on 38mm wg and their bov. Runs a 9psi spring and a switchable manual boost controller at 14.5 psi cause its on a 2 bar map. That's the one with the stock heads and all stock suspension and 10 bolt.

lsxmalibu

iTrader: (50)

Your worried about a 200 wastegate. I run a super cheap 55 dollar unit. Lol.

kidcamaro98

iTrader: (8)

a waste-gate is a waste gate. Its a simple diaphragm and they are all the same.

ModularTurbo

iTrader: (14)

Magnum Turbos are not made in China they are made in South America.

There is no relation between On3 and Magnum.

Beaflag VonRathburg

iTrader: (176)

In design, not in components and / or assembly.

tripblackls1

iTrader: (11)

Even so I rather spend 300$ on a good wastegate now then 500-4000 on a motor when the cheapo gate overboost and blows your motor

ModularTurbo

iTrader: (14)

The turbo on my EVO is internally gated, the diaphram failed at 111,000 miles of abuse. My turbo then spun up 45psi and lifted the head, thank god I had stock head bolts still or it would have put a window in my block...

Use a quality gate it can cost you a motor.

killernoodle

So out of curiosity, I disassembled my on3 76mm ceramic ball bearing turbo to see what was inside. I know that a lot of cheap turbos advertise ball bearings and deliver journal bearings and other shortcuts. I wanted to see if the internals were well made. From what I can tell, they are.

Some things I noticed: there is a single ball bearing, the exhaust side is journal. There is a single thrust bearing.

There are machine marks on the compressor indicating they balanced it. There are grinding marks on the turbine too. The shaft tolerances seem very precise, as do the rest of the pieces. It doesn't look like they took any shortcuts making this turbo.

killernoodle

Continued

Note the ceramic ball bearing is thrust directional. Don't reinstall this backward!

killernoodle

Continued

killernoodle

Last set. Let me know if you guys want more pictures.

stangtrader

iTrader: (2)

Is it possible you can take some actual measurements of the wheels for comparison
To what they say they are? I hear ebay turbos often are smaller than specs provided

killernoodle

Already did that with some calipers. Their measurements are accurate.

tripblackls1

iTrader: (11)

Wow thanks killernoodle, I was thinking of trying on of the bb76, I think I just might have to now

Sarg

iTrader: (6)

My only concern with ebay wastegates is how long the wastegate will hold up. On an external style gate, the diaphram is what concerns me more than anything. I know in the Tial units they use a nomex diaphram. No clue what might be used in these ebay units. I don't think they would hold closed on a failure like an internal gate actuator might.