compressor outlet

[Fuelie600]

Has anyone bellmouthed the compressor outlet? Going from a smaller to larger opening, I don't feel there is any need, but I wanted to pose this question while the turbo is on the bench. Thank you, Brian

 

[turbo2nr]

I own a Dental Lab, and get all my car parts sent here first. I usually take apart any new turbo for many reasons. First, to remove burrs, bumps, and bubbles from casting, then I fill holes inside compressor cover where they poke thru from outside, while leaving room for the screw to hold on cover. I bellmouth the compressor outlet, and the back side of the wastegate hole. Look over turbo for anything funny. Sometimes you find a small flaw on a wheel, maybe a chip of metal ready to flake off. Then to the back side of turbine cover. I bellmouth the exit of the main turbine area just past the tip of the blades. You can only do 50% of the area around the turbine on big turbos because of the downpipe sealing surface is tight on the turbine exit. This helps allow a smoother transition from turbine to downpipe. Sometimes a lot of grinding is needed here!

 

[disco stu]

Do you use your dental tools to do this?

 

[Fuelie600]

I just performed my turbo check up. Cleaned things up a bit ( didn't need much ), and bell mouthed the compressor outlet and blended the waste gate hole. Also trimmed up the THDP to accomidate the Q trim exh housing.

 

[turbo2nr]

Originally posted by disco stu
Do you use your dental tools to do this?

Of course. I use big lathes to polish parts, like compressor covers. I use small drills to port/polish/clean-up small areas. I have ultra-sonic cleaners, and a couple of blast cabnets. My equiptment is never used on people.