Was out autoXing today and had a b it of an incident.
This is the front turbo. For the most part this is what it's supposed to look like. Minus the clipped corners
Here's the rear turbo. See any problems?
These were upgraded turbo's. They start as stock WRX turbo's (13T) and from there the the 3000GT exhaust housing is machined to fit the WRX turbo. Then the compressor wheel is swapped out. The compressor housing is machined as well. I've also seen mention of machining the backside of the compressor wheel to make them fit in the WRX housing. (the 19T compressor wheel is used on Volvo's in some stock applications). I'm wondering if that machining was done to these, and if it made them weak and prone to doing this. Havn't heard of this happening to any other 3S guys though.
My current thought is to get a pair of 13T's rounded up and put them on. They will be a "downgrade" from what was on there, but still a big step up from stock. I wasn't getting all I could out of what was on there, so I will probably only gain power in the lower RPM, and not lose anything up top. Better for autoX.
Hopefully the motor should be ok. Might have some witness marks from the little bits of aluminum going through it, but I think it might be OK. My initial reason for thinking it was the motor that blew up, was that it was running rough, on 5 cylinders. I've had experience with that, I KNOW what it's like. I'm betting some little bits of AL where holding a valve open, as the last time I started it, it was running on all 6.
Till next time I have some good death pics to post, Happy boosting!
Yeti Long Shot: Porpoheus Champion!
Threaded Mode