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  1. #1

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    Supercharger coating to get more boost?

    Over on the PPG forum there was a post about a service that PPG offers. For $125 they have some type of 3-4 mm coating that they coat the inside of the supercharger with and it will help gain 1-3 lbs of boost? Says it also ends any corrosion in the SC housing and makes the impeller fit as tight as possible to get the most boost. Has anyone heard of this or have any info on it?


  2. #2
    GTXX's Avatar
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    one of our racer friends was doing this a few years ago before there were any big SC's available.

  3. #3

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    What exactly is the coating and how does it work?



    Quote Originally Posted by GTXX View Post
    one of our racer friends was doing this a few years ago before there were any big SC's available.

  4. #4
    lugnut's Avatar
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    The only coating I'm aware of is a "thermal dispersant".
    Had it applied to outside of my SC housing & discharge tube.
    It works.The coated units "shed" a substantial more amount of heat,I could tell as soon as I took the back seat off & noticed engine bay was "warmer" than usual,but.. SC cooled off ALOT quicker.
    The down side.. Too much cost($300 for TD & labor).Must be applied by a "knowledgable" pro who has worked with these coatings before.Specific steps must be adhered to for it to work & remain "coated".
    Also.. you must evacuate this "new found" heat being released in engine bay,bilge fan is a must...more $$.
    Performance gains..No hard data on temps just an increase in RPMs,on average,20 substained RPMs,@ the most & very negligable(if not any) heat fade on extended WOT runs.
    Here's a few links & I let you decied for yourself.
    http://www.cradin.com/thermal_dispersant.htm
    http://www.wolfeblasting.com/html/TH...ISPERSANT.html
    http://www.olycoatings.com/therm-101.html
    http://www.camcoat.com/main/thermal-dispersants/
    http://replikamaschinen.com/articles...oatings_1.html

  5. #5
    speedskixp's Avatar
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    The idea of the coating is to tighten the clearance between the wheel and front housing. With the coating the wheel basicly cuts its own clearance. I could imagine minor gains from it but highly doubt even 1lb of boost increase unless the clearance started out way out of spec to begin with.

  6. #6
    Whats that whistling noise? jtskier11's Avatar
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    TOUCHDOWN!!!

  7. #7
    JFizzleJR's Avatar
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    Quote Originally Posted by GTXX View Post
    one of our racer friends was doing this a few years ago before there were any big SC's available.
    +1. He told me it was good for 1 lb. of boost on the stock supercharger back then.

  8. #8

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    The coatings are also NOT legal for stock class racing.

  9. #9
    Richieb's Avatar
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    Is this not the black already on the parts of the engine etc tho?

  10. #10
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by Richieb View Post
    Is this not the black already on the parts of the engine etc tho?
    Inside the charger front housing!

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