Jump to content
SAU Community

Recommended Posts

Well i just say if the rear is damaged - why/how? Something must virtually have gone through the engine for that. Comp wheel a bit more common but turbine isn't.

Cartridge might be damaged, totally depends on what is actually stuffed and how :)

Cost - depends on the above.

Actually Ash I'm not so sure about the turbine being the harder part to get , the GT compressor wheels are actually modified spec big center section diesel turbo parts . By modified I mean they have a smaller bore hole through their centers so its not like you can top and tail a truck one and bolt it in .

I went through this years ago with Brett - trying to find ways of getting smaller trim comp wheels into GT3076R's and GT3582R's . Some of the truck turbos have the wheels I wanted but no one wanted to bush back the bore size to suit the GT25BB sized turbine shaft . In other words the appropriate wheels are unique to these BB cartridges .

If you can get in good with someone that mixes and matches BB turbo bits you stand a reasonable chance of getting some of their components .

The thing is that if the turbine has had a big lose it may have struck the inner bore of the cartridges bearing housing and damaged the section that the turbine end piston ring seal runs on . You really need someone who assesses these things to pull it down and say yay or nay . Once the turbine housing is off gutting the cartridge is a reasonably quick and simple operation - in other words not much labour time .

The trouble with damaged turbos is that you can end up with something that owes you nearly as much and sometimes more than a new cartridge or unit .

A .

Actually Ash I'm not so sure about the turbine being the harder part to get , the GT compressor wheels are actually modified spec big center section diesel turbo parts . By modified I mean they have a smaller bore hole through their centers so its not like you can top and tail a truck one and bolt it in .

I went through this years ago with Brett - trying to find ways of getting smaller trim comp wheels into GT3076R's and GT3582R's . Some of the truck turbos have the wheels I wanted but no one wanted to bush back the bore size to suit the GT25BB sized turbine shaft . In other words the appropriate wheels are unique to these BB cartridges .

If you can get in good with someone that mixes and matches BB turbo bits you stand a reasonable chance of getting some of their components .

The thing is that if the turbine has had a big lose it may have struck the inner bore of the cartridges bearing housing and damaged the section that the turbine end piston ring seal runs on . You really need someone who assesses these things to pull it down and say yay or nay . Once the turbine housing is off gutting the cartridge is a reasonably quick and simple operation - in other words not much labour time .

The trouble with damaged turbos is that you can end up with something that owes you nearly as much and sometimes more than a new cartridge or unit .

A .

I more-so meant the turbine was harder to kill.

Being you have

1. Air filter

2. Comp Wheel

3. I/C

4. T/B

5. Motor body

And whatever else in the way - to mince a turbine wheel just raises questions in my book :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Um. No. Since Matt introduced the TIM it has become a lot easier to deal with the consequences of changing K for AFM and injector swaps. Then, tuning is a f**king doddle. No-one needs to know or care how many grams of air are flowing or any other bullshit. Need more fuel in a cell? Add more fuel. Need more timing in a cell. Add more timing. Need to adjust any of the other tables for warm up and so on? No harder than anything else. Sure - it's not an ECU system for starting from scratch on an arbitrary engine. But then.....it was never supposed to be, not recommended for, and almost never used that way. So.... On your engine, in particular, Nistune/Nissan OEM is about as sophisticated and difficult as banging 2 rocks together. Those ECUs are primitive and simple. There is nothing difficult there. I learnt Nistune from scratch, created new maps with extended axes, interpolated/extrapolated the original maps onto them and tuned my RB20 (basically the same ECU as your 26 ECU) all by myself, more than 20 years ago. And that was long before even TIM.
    • Set of knee pads for a R34. Will fit every model I think. Comes with everything except the rubber covers for the bolt holes. Still in great condition. You will need to drill holes to mount these or use double sided tape. I can do free shipping and will be shipping from the Netherlands with tracking.
    • Nistune needs something like an entire excel spreadsheet in which you build an abstraction layer that converts everything from real units you can actually measure into all of the various tables. The number of unexpected dependencies hiding in how the Nissan ECUs do math is a pretty impressive optimization trick for 8-bit MCUs but good god is it awful to actually work with in practice. 
×
×
  • Create New...