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Old 06-21-2014, 12:06 PM   #211
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I appreciate your position. I would liked to have done the same, but in oval, it was run a D3.5 or never have a shot at winning. I personally am glad they are finally being declared illegal and removed from ROAR's approval list. Everyone had a box of motors that the D3.5 unfairly made obsolete.
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Old 06-22-2014, 02:14 PM   #212
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Ran the very same R1 17.5 that I did not like in my 1/12 today in my TC and I loved it so there is nothing wrong with it in two cell but it was a just ok in my 1 cell cars.

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Old 06-22-2014, 03:21 PM   #213
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that makes sense. these motors love to rev, rev's need voltage.
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Old 06-22-2014, 09:16 PM   #214
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Picked up an R1 21.5 for 1/12 / 2 cell racing here in Japan. I'll be debuting this motor at the Japan Nationals in two weeks. I won't be able to do any testing and wondering what roll out, and timing I should use for this bad boy.
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Old 06-28-2014, 01:44 AM   #215
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Anybody had any insight yet on how much timing this motor has built in?

I did some testing using a tachometer following the theory that when you surpass the maximum of 60 degrees within a phase you start to move onto the next phase and performance would drop (using RPM as a measure). I tested 10, 20, 30, 40 and maximum (45) degrees on the endbell and continued to increase rpm each time. Biggest gains were at 20 degrees while each time after this was approximately same rpm gained. Would lead me to assume there's approximately 15 degrees built in timing with 45 possible on the end bell.
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Old 06-29-2014, 01:25 PM   #216
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Josh n ya suggested to me last night I need to post on the forum my USGT motor setup. My R1 21.5 was very fast qualified 3rd in a 15 car USGT expert class. We had some of the fastest cars in Norcal going at it last night.
I had 38 of timing geared 4.0 the car was very quick and was smooth through the whole power band. The track is 135' x 70 outdoor asphalt surface with high bite. The motor was 125 at the end of the race with air temp of 80 and track temp of 90.
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Old 06-29-2014, 11:02 PM   #217
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Great run vivo, I have seen a lot of questions concerning 21.5 timing and gearing for this motor. Getting the chance to see vivo's car scream around the track I knew he had to post up his sweet spot he found. He was using his batman super night vision senses driving in an almost invisible track at night. LOL I got second in 17.5 expert and qualified 7th. Car and motor was fantastic. I just happened to hit a few dots in prior quals.
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Old 06-30-2014, 12:41 AM   #218
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What was your timing and fdr? Thanks!
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Old 06-30-2014, 01:42 AM   #219
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Quote:
Originally Posted by J-PaP View Post
Anybody had any insight yet on how much timing this motor has built in?

I did some testing using a tachometer following the theory that when you surpass the maximum of 60 degrees within a phase you start to move onto the next phase and performance would drop (using RPM as a measure). I tested 10, 20, 30, 40 and maximum (45) degrees on the endbell and continued to increase rpm each time. Biggest gains were at 20 degrees while each time after this was approximately same rpm gained. Would lead me to assume there's approximately 15 degrees built in timing with 45 possible on the end bell.
I'm traveling on business and haven't had a chance to play with my R1 21.5 on my dyno, but my KillShots have run as much as 70* end bell timing on the dyno before the amp draw starts climbing dramatically, but still no sign of performance decline in either Power or RPM.
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Old 06-30-2014, 02:03 PM   #220
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Quote:
Originally Posted by John Wallace2 View Post
I'm traveling on business and haven't had a chance to play with my R1 21.5 on my dyno, but my KillShots have run as much as 70* end bell timing on the dyno before the amp draw starts climbing dramatically, but still no sign of performance decline in either Power or RPM.
John at what point (timing) does the amp draw and rpm gain cancel each other out?
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Old 07-01-2014, 05:53 PM   #221
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Should I just follow RedBullFixX's roll out for 21.5 2 cell? I haven't and wont be able to test this motor out until I attend the All Japan Nationals. If someone could give me a relatively decent roll out and timing range that would be just peachy . I want to turn some heads with this R1 21.5 and show them what a beast it is
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Old 07-01-2014, 06:40 PM   #222
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Quote:
Originally Posted by EDWARD2003 View Post
Should I just follow RedBullFixX's roll out for 21.5 2 cell? I haven't and wont be able to test this motor out until I attend the All Japan Nationals. If someone could give me a relatively decent roll out and timing range that would be just peachy . I want to turn some heads with this R1 21.5 and show them what a beast it is
Post #216 Vivo stated his timing was 38* at a 4.0 rollout. Start there. His car was fast.
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Old 07-01-2014, 06:48 PM   #223
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Ah crumbs.. It's for a 1/12.

Sorry.
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Old 07-02-2014, 11:31 PM   #224
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I'll be running the my brand new R1 17.5T in blinky TC this Sunday at TFTR (Vic, AU).

Done 10min testing and so far think it's much better than my Thunder Power 17.5 Z3R. I'm actually scared at how hi the revs go. Went from 10-20* timing and the rpm hit 32,000rpm (no load)! Temp was around 50-55*C. Air temp was 14*C.

Should I use a higher FDR (eg. 3.6 or 3.7 FDR)?

TFTR is a fairly open, medium size, low-mid grip, outdoor asphalt track so thinking of running 3.50 FDR (36/70) in my Mi5. Will start conservatively at 20* timing as well and see where I stack up against the top guys in qualifying who generally run Revtech Killshots.

The rest is down to driver skill... Wish me luck.
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Old 07-02-2014, 11:42 PM   #225
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Quote:
Originally Posted by Stray monkey View Post
I'll be running the my brand new R1 17.5T in blinky this Sunday at TFTR (Vic, AU). Done 10min testing and so far think it's much better than my Thunder Power 17.5 Z3R. I'm actually scared at how hi the revs go. Went from 10-20* timing and the rpm hit 32,000rpm (no load)! Temp was around 50-55*C. Air temp was 14*C.

Should I use a higher FDR (eg. 3.6 or 3.7 FDR)?

TFTR is a fairly open, medium size, low-mid grip, outdoor asphalt track so thinking of running 3.50 FDR (36/70) in my Mi5. Will start conservatively at 20* timing as well and see where I stack up against the top guys in qualifying who generally run Revtech Killshots.

The rest is down to driver skill... Wish me luck.
Don't be afraid to use this motor with multiple fdr and timing. If in the 3.5 to 3.7fdr use timing up to 35*. If at 3.8 and 4.0fdr go up to 40* timing. I wouldn't use timing at 20*. Start at 30*. Oh and good luck! lol Keep in mind that this motor can take some heat if need be. Your safe at 180*.
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