Calling Harlan...Turbo Question
TECH Fanatic
Joined: Nov 2001
Posts: 1,190
Likes: 0
From: Las Cruces, NM
Re: Calling Harlan...Turbo Question The stock Incon stage I and stage II are Garrett gt2535 turbos. The CHRA part number is 446179-0032. Harlan had his modified so hopefully he will post what has been changed from stock (probably exhaust housings).
Compressor wheel data (not sure on compressor housing dont have any yet): Compressor housing inlet diameter 2.75" outlet diameter 2.25"
Wheel Trim = 56
Wheel diameter = 2.09/2.80
Maximum compressor flow = 44 lb/m (each)
Turbine/housing data:
Turbine trim =76
Turbine housing A/R = .86
Turbine diameter = 1.85/2.12
Housing size corresponds to a T28 5 bolt design with integral wastegate
Hope that helps some, Gary
Compressor wheel data (not sure on compressor housing dont have any yet): Compressor housing inlet diameter 2.75" outlet diameter 2.25"
Wheel Trim = 56
Wheel diameter = 2.09/2.80
Maximum compressor flow = 44 lb/m (each)
Turbine/housing data:
Turbine trim =76
Turbine housing A/R = .86
Turbine diameter = 1.85/2.12
Housing size corresponds to a T28 5 bolt design with integral wastegate
Hope that helps some, Gary
Re: Calling Harlan...Turbo Question Gary beat me to it <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
That's them. I actually didn't have them modified. Just rebuilt. I was not comfortable with the amount of "wobble" that had developed in the bearings.
You gotta pick another turbo before we can compare <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
That's them. I actually didn't have them modified. Just rebuilt. I was not comfortable with the amount of "wobble" that had developed in the bearings.
You gotta pick another turbo before we can compare <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
TECH Fanatic
Joined: Nov 2001
Posts: 1,190
Likes: 0
From: Las Cruces, NM
Re: Calling Harlan...Turbo Question Harlan, I had thought you were in the process upgrading to a larger turbine and housings. Since you were going for what 800 hp I think the t28 based turbine is a little small, but what the heck it will just have spin a littler fast and cut down on its life. So what do think wore the bearings out, my guess would be a little compressor slam?
Pick a turbonetics any turbonetics, actually they have some nice stuff. You can even get ball bearing turbos from them now and prices arent to bad.
Gary
Pick a turbonetics any turbonetics, actually they have some nice stuff. You can even get ball bearing turbos from them now and prices arent to bad.
Gary
Re: Calling Harlan...Turbo Question That's the plan.
Push them for all thier worth <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The guys that cored my old CHRA's had a few pairs from Lingenfelter that they were experimenting with at the time. Seeing how much wheel they could get in them. They said by the time i needed more they'd have a handle on it.
I know for sure i had sufficient oil supply, so my guess is too much abuse from compressor stall. They had a little more than normal axial play in the shaft, but alot of wobble as far as i was concerned. any is too much, and i wasn't about to send compressor wheel into my new motor.
If it comes to it, i may step up to a pair of t60's. Compressor housing is about the same size externally, but the exaust side more what i'm after.
but then again, the 2535's are just perfect for a certain truck i know and a t88 would fit nicely in the car.
decisions, decisions <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
Push them for all thier worth <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The guys that cored my old CHRA's had a few pairs from Lingenfelter that they were experimenting with at the time. Seeing how much wheel they could get in them. They said by the time i needed more they'd have a handle on it.
I know for sure i had sufficient oil supply, so my guess is too much abuse from compressor stall. They had a little more than normal axial play in the shaft, but alot of wobble as far as i was concerned. any is too much, and i wasn't about to send compressor wheel into my new motor.
If it comes to it, i may step up to a pair of t60's. Compressor housing is about the same size externally, but the exaust side more what i'm after.
but then again, the 2535's are just perfect for a certain truck i know and a t88 would fit nicely in the car.
decisions, decisions <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
