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Old 03-27-2014, 04:41 PM   #481
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'Drift' means nothing in the rc world. If all you plan on doing is drifting, just pick up cheap electronics.
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Old 03-27-2014, 05:39 PM   #482
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I just picked up my first Orca TX 17.5. Im gonna be running it in blinky stock buggy. With my current D3.5 set up I run between 29-32/70 with 35 degrees on the can. I tune my current motor to pull about 8.6 amps on my inline watt meter. Im just looking for a starting point with this motor. The timing marks on the can dont go up as high so how are you determining timing if you go past the marks? What are the characteristics of this motor? Is it more of a torquey motor where you gear it on the higher end? Any input is much appreciated.
Um it isnt really torquey or really rpm based its more of a neutral motor in my opinion
In 17.5 we are running about a 3.75fdr with 1mm timing past the last timing mark. You get good speed and good rpm. We run the stock rotor. I have not ran it in my buggy yet so I cannot advise anything there but you can try the same gearing as your d3.5 check temps regularly. Um start with 1 notch less on timing until you get the gearing right.
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Old 03-27-2014, 09:30 PM   #483
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Um it isnt really torquey or really rpm based its more of a neutral motor in my opinion
In 17.5 we are running about a 3.75fdr with 1mm timing past the last timing mark. You get good speed and good rpm. We run the stock rotor. I have not ran it in my buggy yet so I cannot advise anything there but you can try the same gearing as your d3.5 check temps regularly. Um start with 1 notch less on timing until you get the gearing right.
I would agree. I run my 17.5 at 3.72 FDR and 1.5mm past the last timing mark. It has great speed and torque.
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Old 03-30-2014, 06:58 PM   #484
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1/8 scale ESC coming out any time soon? I love their stuff and would like to try it in an 1/8th scale setup.

Saw this -

http://quantumracing-rc.blogspot.com...froad-and.html



and just haven't seen/heard updates
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Old 03-31-2014, 01:02 AM   #485
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is there a trick to remove the bearing from the sensor housing? taking a look at it looks like it going to be hard with out damaging the sensor
Did anyone answer this question? I suspect I have that bearing going bad too and would like to replace it and/or the entire senor housing (Or upgrade to ceramic bearings if the motor doesn't already have them). Is there somewhere in the USA that sells those parts for ORCA motors?
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Old 04-06-2014, 08:48 PM   #486
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I did a few tests with my ORCA TX 21.5 in my 1/12.

Great motor, a lot of rip in the infield and down the straight.

Motor settings, 3.50 mm past the timing marks.
Outside motor temped at 140 degrees, inside (as best as I temp it) 176. Mind you the ambient temperatures were around 20 degrees Celsius.
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Old 04-07-2014, 06:52 AM   #487
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Did anyone answer this question? I suspect I have that bearing going bad too and would like to replace it and/or the entire senor housing (Or upgrade to ceramic bearings if the motor doesn't already have them). Is there somewhere in the USA that sells those parts for ORCA motors?
You do not have to replace the sensor housing. Just simply remove it and the bearing will push out of the housing easily with any tip of a wrench. I use a bigger size (3mm) so it doesnt damage the bearing. Going back in I push them in with an eraser on the end of pencil.

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Originally Posted by EDWARD2003 View Post
I did a few tests with my ORCA TX 21.5 in my 1/12.

Great motor, a lot of rip in the infield and down the straight.

Motor settings, 3.50 mm past the timing marks.
Outside motor temped at 140 degrees, inside (as best as I temp it) 176. Mind you the ambient temperatures were around 20 degrees Celsius.
You dont have to worry about motor temp with the orca. Ive never seen one blow up and seen them up to 240F. Just gear so the lap times are fast and it doesnt fall off bad at the end. Generally once you hit this sweet spot it will be in the 160 range in a tc. 12th I have only ran 13.5 and they are in the 170 range in those.

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Old 04-07-2014, 07:38 AM   #488
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Default Orca 17.5

What would be a good starting point for gearing.Car is a Tamiya ta05 Ifsr medium size parking lot.
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Old 04-07-2014, 08:53 AM   #489
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12th I have only ran 13.5 and they are in the 170 range in those.
Eric, how much timing were you running when the motor came off @ 170F?

When I tested the 13.5 ORCA in WGT prior to Vegas this past fall, I had trouble getting it above 130F... And my WGT typically runs ~10F hotter than my 13.5 12th, given the same motor.
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Old 04-07-2014, 08:55 AM   #490
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The orcas have a sweet spot, it took me forever to find it but once I found it. I could run the car HARD and it would come off at 130-140 17.5 sedan. Really every motor has this sweet spot.
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Old 04-07-2014, 09:07 AM   #491
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Originally Posted by JamesL_71 View Post
Eric, how much timing were you running when the motor came off @ 170F?

When I tested the 13.5 ORCA in WGT prior to Vegas this past fall, I had trouble getting it above 130F... And my WGT typically runs ~10F hotter than my 13.5 12th, given the same motor.
At Vegas it was 2.5mm past the last timing notch and 84mm roll out. This is on super high bite so the motors will run hotter there over running at a club race with medium traction.

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Old 04-07-2014, 11:25 AM   #492
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U have a pm eric .
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Old 04-09-2014, 09:54 AM   #493
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ARE THE 17.5 AND 13.5 TX MOTORS ROAR APPROVED?
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Old 04-09-2014, 10:32 AM   #494
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ARE THE 17.5 AND 13.5 TX MOTORS ROAR APPROVED?
yes, they have been for a while now. Should be able to be found at roarracing.com under approvals.
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Old 04-09-2014, 10:49 AM   #495
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Tried looking it up on the approved list and only saw the rx2 motors listed.

Thnx
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