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Thread: Spec 20 gtp

  1. #1
    Join Date
    Oct 2004
    Location
    Ventura ,ca 93001
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    264

    Spec 20 gtp

    So I put together a really sweet flat track car for fun...and would be a hoot of a class too...
    C-can motor- any manufactor- any c-can magnet- ball bearings/shunt okay..
    C-can group 20 arm ( I used a champion .513 dia. ht 20 arm) min=.500 dia. max=.540 dia.
    Any slick 7 asp chassis ( ver. 1-2-3-4) (I used asp 3 modified and with bearings)
    Any GTP body...( I used a o/s 066 merc)
    Any gearing (I geared it 7-44 72 pitch)
    ***Talk about power and handleing- I think this could really be close to the c-1 class back in the day...
    ---At my local track its about 3-4 tenths slower than a euro and about 2-3 tenths faster than a gt-12, but the handleing with the gtp body just rocks and is alot of fun to drive...

    This would be really easy for rules too:gtp body- asp 1-4 chassis- any c-can- 20 arm, all else goes..."lets race"...

    Anyways just wanted to share it with you all !!!
    "MAY THE FORCE BE IN THE FINGER"
    "Theres no banks in heaven,spend it all on slotcars"
    "WINGS ARE FOR FAIRIES- GTP RACING RULES"

  2. #2
    Join Date
    Aug 2010
    Location
    Arizona
    Posts
    621
    Isn't that GT12 amateur now using those rules?

  3. #3
    Join Date
    Oct 2004
    Location
    Ventura ,ca 93001
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    264
    Its pretty close but "group 20" arm but no usra restrictions on magnets-endbell- chassis modification etc... The "spec" part is having to use the old school asp 1-4 chassis, but modify them anyway you want... No other chassis's manufactor's... I know for a fact that the "20" arm has way better power than the "12" arms..I have not tried but would like to try in future the 6-mag magnets or quads or even the t-5 bevelled(all illegal in usra gt-12/group12 motors).. ***IN gt12 amateur you are restricted to certain rules for the motor and only certain gtp bodies allow...
    "MAY THE FORCE BE IN THE FINGER"
    "Theres no banks in heaven,spend it all on slotcars"
    "WINGS ARE FOR FAIRIES- GTP RACING RULES"

  4. #4
    Join Date
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    Better let everyone know that those grp 20 motors will blow up inexpensive controllers
    Resident Curmudgeon
    "Manta" Ray Price

  5. #5
    Join Date
    Aug 2010
    Location
    Arizona
    Posts
    621
    drag motor's will pull a lot more amps then your road race controller can handle.

  6. #6
    Join Date
    Oct 2004
    Location
    Ventura ,ca 93001
    Posts
    264

    20 arms

    So back in the day when group 20 arms were wound, what were they used for from the start???The speed shop conversion controller I have handles the amps of all my euro motors...Are the amp's pulled from a 20 arm just a heavy or less than the euro open arms or the same???
    "MAY THE FORCE BE IN THE FINGER"
    "Theres no banks in heaven,spend it all on slotcars"
    "WINGS ARE FOR FAIRIES- GTP RACING RULES"

  7. #7
    Join Date
    Oct 2004
    Location
    Ventura ,ca 93001
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    264
    It's not really a drag motor...It's a kelly 3 hole set up with kelly mags and a champion arm with champion springs and golddust brushes!!!
    "MAY THE FORCE BE IN THE FINGER"
    "Theres no banks in heaven,spend it all on slotcars"
    "WINGS ARE FOR FAIRIES- GTP RACING RULES"

  8. #8
    Join Date
    Jun 2002
    Location
    Robertsdale, Alabama / S.C.C.S.A.
    Posts
    524
    Jason,
    Your controller will be fine. I used to rece GP 20 & what we called "open group", also called GP 22 with a PARMA Tiger with a ceramic resistor. You remember those. We call em rental car controllers now. As far as I know a GP 20 is 38 turns of 27 wire. Mild by our standards. It's what I've been running in !/32 F-1 Euro.

    Greg G.
    Last edited by Slidergreg; 04-19-2012 at 01:00 PM. Reason: addition
    How Sweet It Is!!!!!

  9. #9
    Join Date
    Jul 2003
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    In the Middle
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    Re: Controller............I was not talking about yours............You mentioned you were trying to start a new class...........not EVERYONE has heavy duty or electronic controllers...........Smoking controllers OR Arms may be "Good for Business" but make very unhappy customers
    Resident Curmudgeon
    "Manta" Ray Price

  10. #10
    Join Date
    Oct 2004
    Location
    Ventura ,ca 93001
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    Thanks everybody for all your feedback on this....!
    "MAY THE FORCE BE IN THE FINGER"
    "Theres no banks in heaven,spend it all on slotcars"
    "WINGS ARE FOR FAIRIES- GTP RACING RULES"

  11. #11
    Join Date
    May 2003
    Location
    Great Valley,NY
    Posts
    1,227
    Out my way they compare Falcon 7`s and Sealed ProSlot 16D`s to Eurosports.

  12. #12
    Join Date
    Jun 2002
    Posts
    1,931
    Quote Originally Posted by La Cucaracha View Post
    Out my way they compare Falcon 7`s and Sealed ProSlot 16D`s to Eurosports.
    Eurosports are much quicker! When Lou Pirro first started CASRA, about 10-12 years ago, in the first couple years it was not uncommon to see Grp. 20 arms being used in 1/24 scale eurosports. The wide variety that's available today for eurosport arms didn't exist back then.
    Last edited by Bill from NH; 04-20-2012 at 07:02 AM.
    I like long walks, especially when they're taken by people who annoy me.

  13. #13
    Join Date
    Aug 2010
    Location
    Arizona
    Posts
    621
    So what do we call this class?
    Dyno-Soar?
    Old stuff class?
    BarnYard?
    Look What I found?

    Can't you just throw that old stuff out? I know it's hard to do but we all have mounds of parts and pieces that we save for some reason.

  14. #14
    Join Date
    Oct 2004
    Location
    Ventura ,ca 93001
    Posts
    264
    Quote Originally Posted by EdC View Post
    So what do we call this class? Spec 20 GTP
    Dyno-Soar? Have not dyno the car, but it feels good/powerful on the track
    Old stuff class? Not that old..all stuff is still all available.
    BarnYard? Not invented in a barn, in a garage.
    Look What I found? Got to keep better track of slotcar parts.

    Can't you just throw that old stuff out? (NOPE) I know it's hard to do but we all have mounds of parts and pieces that we save for some reason.
    Try to answer all the questions....
    "MAY THE FORCE BE IN THE FINGER"
    "Theres no banks in heaven,spend it all on slotcars"
    "WINGS ARE FOR FAIRIES- GTP RACING RULES"

  15. #15
    Join Date
    Dec 2007
    Posts
    426
    It is hard enough for most ISRA regions to attract enough racers to have two heats in the classes we now have...

    Do we REALLY need yet another class to muddy the waters?

    If anything, scale series should be looking at creating inexpensive motor classes that encourage cross over racers... IE: B-Production cars/rules using Falcon motors.

    People racing other series may give flat track racing a try. Worth a shot...

    LM

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