Turbo Issue, Plan to replace/upgrade advice please

[gottadiesel]

In the process of doing some routine maintenance on a supra that I bought recently, I noticed damaged to the impeller/compressor fins... Has anyone seen this happen outside of FOD, as that is what it looks like (see pic below) It seems to spin clean and smooth on the shaft, but I plan to replace, as it has to be imbalanced and certainly not efficient. Have not pulled, so not sure of the condition of the turbine fins...

So here is the deal, I am not really ready to try and push a lot more HP out of this stock motor, but over time there are several upgrades that I have planned:

hard-piped IC
3" EX
some fuel management and injectors
AF head gasket
and a few others...

but in the mean time I need to replace turbo, I also need to pull ex man, it is leaking, possibly from stud issue.

So is there any reason not to replace with aftermarket, turbo, ex man, bov and a boost controller. As long as I am careful too not push, I assume I can wait on the remaining upgrades, but do not want to waste my money on a bunch of OEM products that I will want to replace anyway.

Any thoughts would be appreciated.

Also, I assume converting to oil cooling vs coolant is not a major project? when going to a T4 type turbo.

Any thoughts would be appreciated.

 

[IwantMKIII]

Based on your questions, you have no idea what you are getting yourself into.

Replace the turbo immediately. Have your engine checked immediately as that excess metal has to go somewhere. Obviously this turbo was run with no air filter at one point or has enormous amounts of shaft play. Clean out your entire intake system, mostly the intercooler as you don't know where that metal piece went or when it happened.

 

[Supracentral]

That's foreign object damage, I'll just about guarantee it. I'll bet you can find most of the bits inside your intercooler. Unfortunately, anything that made it past that point went through the motor, out the exhaust and through the turbine side of that turbo as well.

If you're feeling lucky, just replace the turbo & clean out the IC as mentioned. Personally I'd want to get the head off, mainly to inspect valves, piston tops and cylinder bores. Remember sharp edges get hot faster, so if anything has been "roughed up" inside the motor, your chances of detonation go up quite a bit.

It may not have been run without a filter, I've seen more than one person "lose" a bolt or nut only to have it show up in the turbo later. (I even knew a guy who lost a 10mm wrench down the fender pipe. That wound up jamming the throttle open during a 4th gear pull.)

If you're feeling lucky, just replace the turbo and hope for the best.

Unfortunately, an upgraded turbo really needs supporting mods, not the other way around. Everything listed on your future mod list would work well with a stock turbo.

Just replace the turbo with a stock one. You can always sell it off later, they go fast in our classifieds section.

 

[AjWit]

dude im getting a new ct26 next week and now you have me scared to look at my 200k turbo. that looks rough as hell. Does anyone know anything anout a J-Spec ct-26? Kid claims his turbo was bought directly from japan and shipped here, are the turbo's from the japanese cars better, should i put it on my car if it's legit? He said the WG is set at like 10psi? IDK!?

 

[gottadiesel]

Thanks for the thoughts.... yeah I will plan to put a new CT26 on order. Thanks