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Engine basics => Engine set up tips => Topic started by: Bill Barber on December 09, 2009, 08:34:57 PM
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Randy , I have an old chrome sleeve double ring St.60 that's just been rebuilt by Tom Lay . I am planning to use it in a T-Rex ARF .What props do you recommend ?
Bill Barber
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Randy , I have an old chrome sleeve double ring St.60 that's just been rebuilt by Tom Lay . I am planning to use it in a T-Rex ARF .What props do you recommend ?
Bill Barber
Hi Bill
I would first try a 13 x 6, The double rings like to run a little deeper into a 4 cycle and do not like to be pushed hard in a 4/2,
We used Bolly 13 x 6, Rev up 13 x 6 and BYO 13 x 6, the Pro Zinger 13 x 6 would be a great prop kit for you
Also the 12 x 6.5 3 blades work well
start with 50 50 castor synth mix fuel 10% nitro, please don;t use all castor as it WILL burn in the ring groove and stick the rings up, when that happens you will loose some compression and wear uneven spots on the stuck ring
Randy
Randy
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Randy I am using this motor in in a T-Rex ARF using a strap-on tube muffler . The cowl is so wide the muffler will not extend outside of it . Do you have extented strap-on muffler for ST .60 ? I would prefer using a tube muffler over a tongue , just like the sound of a tube muffler on a St.60 .
Bill
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Randy I am using this motor in in a T-Rex ARF using a strap-on tube muffler . The cowl is so wide the muffler will not extend outside of it . Do you have extented strap-on muffler for ST .60 ? I would prefer using a tube muffler over a tongue , just like the sound of a tube muffler on a St.60 .
Bill
Hi Bill
No Sorry I do not make an extention for the tube mufflers
However you may find an old Dubro meffler pack at a hobby store and make one pretty quickly
Randy