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  1. #26

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    RE: ASP 15 diesel

    will try and get a run on the 12 ASP series A in the next few days will use the Black MAS 8x5 with only 0.03 cubic inchs less do not expect to see a big difference in RPMs


    MARTIN

  2. #27

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    RE: ASP 15 diesel

    Ray is that the push/pull compression screw setup???? martin

  3. #28

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    RE: ASP 15 diesel


    ORIGINAL: AMB

    Ray is that the push/pull compression screw setup???? martin

    Martin,

    yes it's just a standard Parra 15 Diesel push/pull head from Alberto for about 15 Euros.

    Bob and myself have been using them on a few other racing glows to convert them to diesel.

    Ray

  4. #29

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    RE: ASP 15 diesel

    at about $20 a bargain martin

  5. #30

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    RE: ASP 15 diesel

    Well the ASP 15 diesel conversion with the Parra 15 push/pull head did run rather well.

    On the APC 7 x 6 test prop it turned an honest best of around 16800 rpm, not spectacular compared with say a Parra 15D or a Fora 15D but good.

    In contrast another ASP 15 in glow format same prop, and venturi hole diameter and on 10% nitro turned 15500 rpm.

    The latter had a homemade piston with a high Silicon content alloy and it was sagging as it warmed up so it's not really a fair comparison.

    Pics follow.


    Ray




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  6. #31

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    RE: ASP 15 diesel

    very good numbers I say will try the same prop 7X6 on the 12 diesel of course
    martin

    this also the early series A maybe apples and oranges but will see how close on the revs my guess 2-2.5K less

  7. #32

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    RE: ASP 15 diesel

    'ow big's the 'ole then Ray?

    ffkiwi

  8. #33

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    RE: ASP 15 diesel

    well put on the mount in the garage just now found a 7x6 wood zinger just for kicks a few drops down the carb a couple of flicks whack whack on the finger nail prop quicker than me
    so used the chicken stick same thing it gets the sullivan 1/2A starter in the morning martin

    well setup ready to give it a shot in the AM (no room for muffler)
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  9. #34

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    RE: ASP 15 diesel


    ORIGINAL: ffkiwi

    'ow big's the 'ole then Ray?

    ffkiwi
    Chris,

    The hole's are both 4 mm.

    Ray

  10. #35

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    RE: ASP 15 diesel

    And tangential feed from the look of it...........now that I've sent fiery his 4mm thread spinner for the Elfin 149, I should turn my hand to making a few venturis...........does Alberto Parra have a website-I should invest in a couple of those heads............

    ChrisM
    'ffkiwi'

  11. #36

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    RE: ASP 15 diesel

    ORIGINAL: ffkiwi

    And tangential feed from the look of it...........now that I've sent fiery his 4mm thread spinner for the Elfin 149, I should turn my hand to making a few venturis...........does Alberto Parra have a website-I should invest in a couple of those heads............

    ChrisM
    'ffkiwi'

    Sure does!

    http://www.clubtamaran.com/material.htm

    Or:
    http://www.clubtamaran.com/PRECIOS%2...5%20INGLES.pdf

    For spares price list.

    Ray


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