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T-REX 450 › Wich pinion for a Scorpion 2221-6
02-07-2008 06:24 AM  10 years agoPost 1
Kevin Dalrymple

rrKey Veteran

Indianapolis

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Hey guys
what pinions are people running in there Trex 450 with a Scorpion 2221-6 on 3S? Thanks

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02-07-2008 07:39 AM  10 years agoPost 2
Brovic777

rrElite Veteran

Los Angeles, CA

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Most people who get this motor is because they want insane headspeed at 3500rpms using an 11t pinion.

If you want 3100rpms, get a 10t.

Killer Beam E4 450
Check out my HD Gallery

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02-07-2008 12:55 PM  10 years agoPost 3
Learn to Fly

rrKey Veteran

Yalesville Connecticut

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IT IS INSANE AT 11T!!

My day off today, and I just got her all back together. New FP packs too.

Scorpion 2221-6


Jeff
Believe nothing you hear, and half of what you see...

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02-07-2008 04:12 PM  10 years agoPost 4
Darren Lee

rrElite Veteran

Woodstock, GA

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11T on 3S gets you around 3400 rpm. 10T pinions don't typically come in 3.2mm shaft size.

Team Synergy / Rail Blades / Morgan Fuel

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02-07-2008 11:08 PM  10 years agoPost 5
Tony Whiteside

rrKey Veteran

Shepherdsville, KY US

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you can get the 10 tooth at www.rchover.com
but you have to use the crazy green lock tite because there is no set screw,but the 11 is what i would be running.i have to go ahead and get one of these babies they sound like an great motor.

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02-08-2008 03:20 AM  10 years agoPost 6
Kevin Dalrymple

rrKey Veteran

Indianapolis

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What speed control are you guys rnning with this motor?

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02-08-2008 03:25 AM  10 years agoPost 7
Brovic777

rrElite Veteran

Los Angeles, CA

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I used both the Align 35amp ESC and the Scorpion 55amp ESC. They both worked the same.

Killer Beam E4 450
Check out my HD Gallery

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02-08-2008 11:40 PM  10 years agoPost 8
Learn to Fly

rrKey Veteran

Yalesville Connecticut

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Im using an Align 75 amp, just cause it was laying around.

I thought this motor pulls more than 40 amps? I will FDR it tomorrow at the shop. Im loving this setup though.


Jeff
Believe nothing you hear, and half of what you see...

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02-14-2008 04:05 AM  10 years agoPost 9
Kevin Dalrymple

rrKey Veteran

Indianapolis

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I put the 11 tooth pinion in and now the tail belt slips a little under full power. I will change the belt as it has bee in my Trex for a long time and some teath are missing. Has anyone stripped teeth off of there belts wi this motor? Thanks

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02-14-2008 07:36 AM  10 years agoPost 10
DMehalko(DM)

rrVeteran

Colorado

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i kinda just want to try one of these out just because, i have the 2221-8v2 and it is awesome power, im just afriad with the -6 flight times will be sooo short

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02-14-2008 10:14 AM  10 years agoPost 11
TomRex

rrElite Veteran

West Palm Beach Join Date: 12-28-2005

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beef its the 9t that doesn't come in 2.3. There are a ton of 3.2 hard pinions from Revco dealers. One of which is right down the road from me. http://www.readyheli.com/RevCo_Pinions_s/109.htm

Ignorance is the absence of facts.Stupid is lacking the intellectual capacity to comprehend the fact

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02-14-2008 03:53 PM  10 years agoPost 12
Richardmid1

rrProfessor

Leeds, England

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Innov8tivedesigns.com do a 10T for 3.17 shaft with a grub screw apparently! Ive ordered one with a Scorpion 2221-6 to help keep the amp draw down so its easier on the batteries. Also 3100rpm is plenty! I was actually happy with 2800rpm from my 2221-8 V1 on a 12T pinion.

60% of the time, it works every time!

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