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Which prop.
http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=41&t=33953
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Author:  nitromag887 [ Sat Nov 03, 2012 10:03 am ]
Post subject:  Which prop.

Have the 212 cc predator with a 6x4 prop now. Get about 7-8 mph two guys no gear 1436 riveted. Going to get the nr racing stage 2 hop up kit which says it will then be a solid 10 Hp. Will an 8x4 or 8x5 be big enough. And on the pitch does bigger give your more low end or speed.? Thanks in advanced.

Author:  rudyeng [ Sun Nov 04, 2012 12:38 pm ]
Post subject:  Re: Which prop.

You need to look a the tach and play with the prop. Every inch of pitch can increase/decrease speed. The rpm’s will also increase/decrease 200-400 rpm’s per inch

You may not have the power to go up in pitch. Also the gear ratio is important.

I would change out the top pulley and play with that first.

good luck.

Author:  nitromag887 [ Sun Nov 04, 2012 8:27 pm ]
Post subject:  Re: Which prop.

It's a long tail motor. My first m m just built it this year. And when I built it I heard so many different prop sizes to use I didn't know where to start. That's y I was wondering which one to get when I jump up the Hp.

Author:  nitromag887 [ Sun Nov 04, 2012 8:28 pm ]
Post subject:  Re: Which prop.

Also I don't have my tach on yet. Does anybody know what the stock 212cc rpm run at? I'm gonna try and get it on this week sometime.

Author:  kazzer [ Fri May 24, 2013 4:15 pm ]
Post subject:  Re: Which prop.


Author:  birdysportsman [ Sat Sep 13, 2014 10:30 pm ]
Post subject:  Re: Which prop.

I m

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