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Other › Headspeed?
02-10-2006 06:26 PM  12 years agoPost 1
JeepRubicon2k3

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I'm having trouble with getting heedspeed right, using a Globee tach I got 60% = +/-2400RPM. That doesnt make sence and I made sure it was the tip of the blade being hit and there was no lights around "outside". The tach was set to 2 blades. Also whats max effecency of the 420LF 95%?

Set-up 325mm pros, 420LF W/13 tooth, Jazz, TP2100 Gen3

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02-10-2006 06:53 PM  12 years agoPost 2
steph

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Hampshire England

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Hi JeepRubicon2k3

With the 13t on the 420lf motor @ 3200kv @ 100% throttle you are going to get 2972 rpm on the head approx
Depending on the headspeed you are after is dependant on the pinion size lets say you are after the headspeed of 2400 rpm and to run the throttle range on your tx @ 90/95% then you need a 11t pinion

The world is round you can run but you will always end up where you started from

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02-12-2006 04:39 PM  12 years agoPost 3
JeepRubicon2k3

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So I should go back to the 11 tooth and then set heaadspeed. I had the 11T on but was only getting around 50-60% power.

Thanks

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02-12-2006 08:46 PM  12 years agoPost 4
steph

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Hampshire England

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What do yo mean 50/60% power are you talking about your throttle curve on your tx ?
If you put the 11t pinion on then run the throttle @ 90/95% straight line in gov mode or something like 10-95-90-95-100 v curve if you are not using gov mode this should then give you the required hs

The world is round you can run but you will always end up where you started from

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02-12-2006 10:16 PM  12 years agoPost 5
JeepRubicon2k3

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Yeah I use governer and the tach was saying 2400@50-60% if i run 90-100% it would read way over 2400rpm.

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