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Old 04-22-2009, 01:02 PM   #1
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Default best .21 engine with roto-start...

looking for the best engine that use's a roto-strat backplate, (looking for the best output hp & rpm's).....lets see what people come up with....
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Old 04-22-2009, 01:41 PM   #2
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looking for the best engine that use's a roto-strat backplate, (looking for the best output hp & rpm's).....lets see what people come up with....
none - lose the roto start you will spend a ton in one way bearings
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Old 04-22-2009, 02:07 PM   #3
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Nova 2001bf comes with a roto start.
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Old 04-22-2009, 03:27 PM   #4
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OS .21VG(P)ES. that's what I have on my 8ight now. I send it to AB Mods for stage-2 modifly, much better after!

http://osengines.com/engines/osmg2073.html
http://www.abmods.com/
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Old 04-22-2009, 04:46 PM   #5
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thats the best you can do....how about engines that roto-starts can be added to....I know what you guys are gonna say almost any engine with a pull start...
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Old 04-22-2009, 05:59 PM   #6
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thats the best you can do....how about engines that roto-starts can be added to....I know what you guys are gonna say almost any engine with a pull start...
a pull start or rotostart system will easily rob 10-15% of the power of your engine plus there are more places for air leaks , get a killer race application engine . unless you are using in savage or similar vehicle ......lose the roto start .


novarossi offers many mills with roto start
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Old 04-22-2009, 06:51 PM   #7
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THANKS, but I'm not to sure that I ready to dump the ROTO just yet...
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Old 04-22-2009, 07:04 PM   #8
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a pull start or rotostart system will easily rob 10-15% of the power of your engine plus there are more places for air leaks , get a killer race application engine . unless you are using in savage or similar vehicle ......lose the roto start .
I didnt know it robbed 15% of your power, I thought it was more like 5% but I can easily see how it is more. Besdies the power (my engine is already uncontrollable) I have absolutiely zero problems with my spin start. When I raced electric, I bought $75 factory matched cells (best cells available) so it really so the spin start really goes compared to people with their 1700nicads. I actually havent had 1 time where it wouldnt start on the first spin.
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