1/8th scale engine displacement pros/cons
12-22-2011, 11:43 AM
#1
1/8th scale engine displacement pros/cons
.21/.28/.32...Are there any others for 1/8th? Getting back in to the hobby, and wondering what the differences are in terms of power/revs/fuel consumption, etc. Anyone have some insight? I know the .21's are required for certain race classes.. Thanks!
12-22-2011, 11:57 AM
#2
O.S makes a .19 now too 
O.S Speed .19 xzb. apparently great runtime, lighter than a .21, more usuable power due to less wheelspin. alot of people are running .21's in truggies now since they have more than enough punch even for a heavier truggy. the limit for buggy is .21 though...nothing bigger allowed at most sanctioned events. Over here at clubraces people are allowed to run .28 RTR engines in buggies too, with the condition that it has a pull/roto start. the larger you go doesnt necessarily mean more power, or usable power for that matter. maybe less runtime. i think the current range of .21 race spec engines have the best power to weight to consumption ratio.
O.S Speed .19 xzb. apparently great runtime, lighter than a .21, more usuable power due to less wheelspin. alot of people are running .21's in truggies now since they have more than enough punch even for a heavier truggy. the limit for buggy is .21 though...nothing bigger allowed at most sanctioned events. Over here at clubraces people are allowed to run .28 RTR engines in buggies too, with the condition that it has a pull/roto start. the larger you go doesnt necessarily mean more power, or usable power for that matter. maybe less runtime. i think the current range of .21 race spec engines have the best power to weight to consumption ratio.
12-22-2011, 12:58 PM
#3
Great info, Thanks Bob!
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