turbo inspection

mikestir · 01-26-2010, 11:51 PM

Got an 05 r12x with about 160 hrs on it. 100hrs of racing,macs stage 2 kit pump work etc.have done a few races with the wgs disconnected,but other wise run around 16-18pd boost.All riding in salt, maintain this unit pretty well.want to inspect the turbo wheel after reading about the nightmares incounted by some guys hear.whats ya thoughts and is it just a matter of disconnecting the 2 oil lines intercooler hose..

SuperMAC · 01-27-2010, 05:18 AM

just have a look at the inducer on the intake side. pop the air filter off. if it looks good there, then the rest should be good.

mikestir · 01-27-2010, 06:02 AM

took uni filter off not long ago and intake side looked good.but was worried about the heat generated by higher than normal boost.Do you think its worth going further...

SuperMAC · 01-27-2010, 06:06 AM

there are no reasons to look further

thomasdjames1 · 01-27-2010, 09:25 AM

Mac knows what he is talking about and he is correct. The other way to look at is if the turbo is wearing out then about the only option you have is to replace it. With that being said, as long as it is making full boost then just run it till wears out. I do not think you are going to do anything that is going to improve the longevity of your turbo besides spraying it with CRC 6-56 or not running extreme amounts of boost. Also from what I have read I cannot see any really strong evidence showing that running boost levels up to about 20-22 PSI (and maybe higher) have any negative effects of the longevity on the turbo. What all this rambling equates to is just run it till you start losing boost and you may never start losing boost. You are not the only one out there running higher than normal boost levels and many people have never had a problem. It is a race machine, push it till it breaks and then let us know what the limit is! haha

mikestir · 01-27-2010, 03:24 PM

Sounds reassuring,I should have mentioned befor that boost has dropped from reading about 15-16 on the gauge to 5-6.wgs looks good I do pull it apart and clean it every 5-6 rides.No F1 lite

SuperMAC · 01-27-2010, 06:17 PM

looks and works are two different things. it sounds like a wastegate solenoid issue.

mikestir · 01-28-2010, 05:38 AM

Im thinking that now as i have pulled this one apart a few times now.
will get another one in it and c what happens.

JR IN JAX · 01-28-2010, 08:58 PM

I hate to disagree, but my turbo started losing boost and the compressor wheel was "pristine". I pulled out the cartridge and the turbine wheel/heat shield were shot.
Some Experts said it was overheated, some said it was mechanical damage.

When I repalced the cartridge it went to 20PSI with the WGS disconnected.

Shawn [Nitro] says the higher boost levels run the RPM far above the maximum safe RPM according to IHI.

01-28-2010, 09:02 PM

Quote:

Originally Posted by JR IN JAX

I hate to disagree, but my turbo started losing boost and the compressor wheel was "pristine". I pulled out the cartridge and the turbine wheel/heat shield were shot.
Some Experts said it was overheated, some said it was mechanical damage.

When I repalced the cartridge it went to 20PSI with the WGS disconnected.

Shawn [Nitro] says the higher boost levels run the RPM far above the maximum safe RPM according to IHI.

I with you on this one brother! But I know the ski will only boost to 7psi with a bad solonoid, but def agree about "looks"