2ZR Turbo Yaris

[tmontague]

great to hear the FT's smoothed out. I'm really surprised as to how a potential fuel leak could have caused this issue as it should have run rich not lean, but either way glad it seems settled.

I guess the issue with your turbo oiling wasn't too much oil going in but not going out at a fast enough rate? That said, is it possible you had too much oil supplied to the turbo where you need such a large drain tube? I can't see too much oil being a problem as long as you can drain it adequately, it just seems like a much larger diameter drain tube than I have ever seen before.

After following your in depth turbo build I fully understand why long time track rats tend to say that an all engine build is superior to a boosted set up for a track car. This is by no means knocking your turbo build - I think it is awesome and will be a completely original and fun DDer - I just mean from a track car point of view. Many more fittings for potential oil leaks and therefore dangerous and costly fires (which happen a fair amount at the track). More heat to have to cool and many more fittings and parts to have to constantly check to ensure it is all working fine.

Obviously this is a bigger chore in a car that was NA form the factory, but I can see why people talk about turbo'd Miatas constantly needing work and they tend to be down more than they're running.

Good work thus far, I'm excited to hear about your thoughts on driving it once it is fully functional.

Side note - I would recommend you purchase a fire extinguisher to have in your car once it is fully operational. All it takes is a small oil leak to cause a fire that can write off your car, vs a small mess to clean up and some wire to repair.