ST G20 vs. G21

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  • #41208
    Scott Lapraik
    Participant

    Can anyone tell me what the performance difference is between the G20 and the G21 Super Tygres?

    Thks, Scott

    #47896
    Scott Lapraik
    Participant

    Ok, of all you engine experts out there, no one can tell me what the difference is between an ST G20 vs a G21!!!!! Or can someone point in a direction to find out.

    Thks, Scott

    #47897
    Anonymous
    Inactive

    OK here goes;
    The G20 was a front induction engine that came in a number of capacities – 15, 19 and 23 I think. Thus a G20/15 is 2.5cc. There is currently on eBay, a very early G20/15, with a separate bearing housing (similar to K&B and ETA racing engines), but the most common G20 has a one piece crankcase.
    The G21 was a rear induction racing engine that also came in at least 2 capacities – 29 and 40. The G21/29 is 5cc.

    John

    #47898
    Ed Hardin
    Participant

    Hey Scott,
    I have a ST G20/23 with 1965 stamped on the crankcase. I don’t know if it’s any good or not, been 20 years since I ran it. If you want it let me know and I’ll send it to you.
    Ed

    #47899
    Scott Lapraik
    Participant

    Ed, yes I’d love to have the engine. I sent you a PM this morning.

    Scott

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