Quote: Originally Posted by
duster360 
Just a couple ????s
What Turbine modifications do you plan on performing?
Cutting too close to the turbine wheel has shown be a lose/lose. It will reduce Mass Flow AND Efficiency.
Don't you think that inhibiting heat transfer via Ceramic Coating is completely counterproductive to the goals of porting a Turbine?
Do you think the coating thickness(.006-.012") will completly negate any metal that was removed?
Will you be willing to share the manufacturer and part # of the ceramic coating you'll be using?
We currently used a lot of Henkel and Dupont products
Will you be testing every combination of ported/non-ported/coated/non-coated ?
It would be most interesting to see the results of just a ported compressor housing over the baseline.
For your first Q please reread this entire thread. No, I will not be doing anything to ramps, or exducer bores in this testing.
If I were to use a thermal dispersant on the turbine housing it would pull heat out of the exhaust stream and make it loose velocity thus hurting spool and power.... it's a good thing that I am using ceramics that are thermally reflective/insulating. It has been tested before that coatings alone can add up to 2-6% more power in turbocharged applications. This is one thing that we are verifying in these tests as well.
Before you start with tolerances and GUESSING what my thicknesses of porting and/or coatings do you think that you should wait for the results? All measurements before and after will be disclosed. FWIW, porting can remove anywhere from a few thou to .100" depending on the application. The ceramics normally are applied from .0005"-.004" depending on which one I am using. So based on this, no I don't think the ceramics will negate any of my porting.
for your last question, again please reread the thread (look at the first post) and you will have your answer.
