hi guys, need quick help from the guru's over here. I have found this turbo put up for sale.Looks to be in good condition, question is I cant seem to find details about the 15g housing from the first page sticky
It is from a evo9 GSR MR from what I can find. Is this worth an upgrade over my stock evo8 MR turbo? for about 400USD?From what I understand it is similar to a 16g6 except with a smaller compressor housing?Does this mean it will be responsive but ultimately lack in the good HP that the 16g6 will be able to provide(350ish)?I have also heard that the TI-alloy blade for the turbo is known to have reliability issues or prone to failing..anybody care to dispel this rumour? Any help is very much appreciated.THANKS!

PS: Hope this is the correct section. and yes I have used the search method.

 

The Ti-Al turbine has an rpm limit. That limit is not well known. I would try to find a 16g6 IX turbo.

 

I would avoid Magnesium alloy compressor wheel used at JDM EVO IX turbines. (code ending with C like 155G6C)

Before TiAl turbine wheel becomes unreliable, Mag compressor wheel is known to be broken at high boost, and as you can imagine, compressor wheel failure means engine damage also.

I have been using my so called TME RS2 turbo (EVO 8 turbo size with TiAl turbine wheel) for years without any problem, now making about 370WHP (dynojet @ RON 100 pump gas).

 

Thank you for that info, the more I know...haha.
Will be staying away from that. I guess for now I'll just keep my stock e8mr turbo (gotta find out what code it is when I take a peek in the engine).
car only has basic bolt ons hence not looking for crazy power just yet. Will be swapping turbos out to something more worthwhile in the long run.

 

If budget is not too tight, I wouldn't consider used stock turbines if current one needs repair. You can get various billet compressor wheel size / turbine size combination fitted to stock EVO IX stock frame at around 1K USD (journal bearing types, maybe a bit more depending on added options and overseas shipping). I have tested multiple turbines sourced from Snail turbo (Taiwanese manufacturer), and they survived at least 2 years of abuse at local EVO race cars. Some people might say Taiwanese turbines are garbage, but I am pretty sure multiple US / Australian aftermarket turbine sellers either buy whole turbines from Taiwan or extensively use their parts, so if you choose a reliable manufacturer, they have pretty much same quality as most brand-name stock frame turbines. Of course, this applies to most cost-effective journal bearing type bolt-ons, but that is what I might get for quick repair anyway.

 

I get what you're saying. But I don't think my turbo has any issues. the problem with my car feeling exceptionally slow and sluggish is probably to do a boost leak somewhere or the stock ecu messed up due to major de-kitting by the previous owner before selling to to me. I'm going to get the stock ecu reflashed next week and check for leaks as well. Hopefully that solves the issue. Also I dont think its financially viable to buy turbos from US due to the high cost of shipping haha.

I'll probably stick to stock turbo before fully changing to a proper ball bearing turbo in the far future. So it isn't a case of urgently needing a turbo replacement (:

 

they spoll quicker but less top end power