I was hoping you guys might be able to help me out. I just bought an unfinished projectfrom a friend. It's a 1jz 86.5 supra. He really didn't know alot about the build as he didn't do any of the work, the work is flawles though.
As for the turbo. He said it is a garret gt30r. I just want to know if you guys can help me with the specs and what kind power it's capable of.
Casting numbers are
vin tag JEM020721
714 568 5003
Also
m24
.70a/r
55mm

Turbo is T4 flanged. exteranlly gated and pretty huge compared to my 15g on my civic. thanks guys

 

The 55m GT30R is good for just over 500hp. A bit more can be eeked out of it, but you'll need some serious support to run that kind of power. I didn't know there was such thing as an M24 GT30r but I guess you learn something every day. GT series Garrett ftmfw though, that's a good turbo for a decently high hp set-up.

 

should spool rearl fast on a 1jz supra

 

wil this turbo have an "R" somewhere on it to let me know it's ball bearing?

 

I've seen Garrett DBB turbos that didn't have an R on the compressor housing. Actually, I think it's really common. From my experience with DBB (the only one I've ever owned was a Forced Performance 3065) is that they have what would be considered a lot of shaft play compared to a standard bushing turbo even when they're brand new, and that the compressor and turbine wheels are incredibly easy to spin, definitly noticeable over an S.B. turbo.

If all else fails and you can't identify it by the numbers, pop the compressor housing off, loosen the shaft nut and you'll have your answer as soon as you take a peak in the center section. If you're running the turbo it's really easy to tell when it's dbb. It sounds like a semi truck when it spools and even after you shut off the motor and the car is parked you can still hear the compressor wheel spinning. DBB FTMFW!

 

http://www.optionimports.com/garrettgt30r.html

Also many evo's are running this turbo...

Here is a vid of a civic with a 30r--

http://videos.streetfire.net/v...6.htm

 

thanks guys. I don't think I need to open it. I bought the car from a good friend.