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Reedy Sonic

Old 08-11-2012, 01:32 PM
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Yes they will work but are illegal.
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Old 08-11-2012, 03:09 PM
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I running with a Speedpassion V3 4.5T and i am thinking to change it with reedy sonic 4.5 .
Will i see any change ?
(hobbywing v2.1 120A)
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Old 08-14-2012, 11:39 PM
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I'm looking to replace my d3.5 with a reedy, I was wondering if anyone had run both and had any opinions? I'm also wondering what to start at timing and fdr wise for a 17.5 sedan 100 foot straight.
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Old 08-15-2012, 05:47 AM
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Originally Posted by Akita View Post
I running with a Speedpassion V3 4.5T and i am thinking to change it with reedy sonic 4.5 .
Will i see any change ?
(hobbywing v2.1 120A)
Yes, your motor will be black

But seriously, probably more torque and power - depends on your settings
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Old 08-15-2012, 06:24 AM
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Originally Posted by B00t13g View Post
I'm looking to replace my d3.5 with a reedy, I was wondering if anyone had run both and had any opinions? I'm also wondering what to start at timing and fdr wise for a 17.5 sedan 100 foot straight.
PMed
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Old 08-15-2012, 09:37 AM
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Originally Posted by JamesL_71 View Post
PMed
Thank you! You're message was very helpful and I'll be ordering my reedy today!
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Old 08-15-2012, 02:36 PM
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Did someone ever notice the strange noise the motor makes? Maybe just mine... On track it sounds like a mix of a combustion and electric motor. I checked everything: ball bearings are ok, gear mesh and pinion are ok, too. If I change the motor the car sounds like every other 1/10 TC. Power and temperature are ok. Maybe there is a resonance with the 7.5t sonic just with the TC6?
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Old 08-15-2012, 02:39 PM
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Originally Posted by wtcc View Post
Did someone ever notice the strange noise the motor makes? Maybe just mine... On track it sounds like a mix of a combustion and electric motor. I checked everything: ball bearings are ok, gear mesh and pinion are ok, too. If I change the motor the car sounds like every other 1/10 TC. Power and temperature are ok. Maybe there is a resonance with the 7.5t sonic just with the TC6?
Yes I know what you mean...one of the local racers has one that is kinda loud. I have five or six Reedy motors and none of them sound like his. Not sure what it is, but his certainly sounds different then mine. Still performs fine, but it is kinda loud.
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Old 08-15-2012, 02:51 PM
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Sounds like the cogging you can get off corners when running too much timing. It will run fine but make weird noises. Back off the timing a bit and see if it continues.
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Old 08-15-2012, 03:19 PM
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Originally Posted by Sean Cochran View Post
TC
Reedy Sonic 17.5t used standard rotor, 12.5mm
36 degrees timing, 3.84 gearing
Sean, or any....Just picked up the 17.5 Reedy to run in 1/10 TC in blinky mode. Is this still a good starting point or has more testing been done? If so, where should we start? Thanks in advance.

Originally Posted by wingracer View Post
I'm a different Sean but I would say that sounds in the ballpark. As I was discussing earlier, you might want to measure your rotor to see what you actually have.
Originally Posted by geeunit1014 View Post
Thats fine to start. I like to run a little more timing (40*) on that same gear though.
Update, I ran my TC 6 17.5 blinky this weekend. I had 3.89 FDR and started out at 36 degrees in practice and first heat. I didnt get a chance to temp it because of tech impound. Felt a little slow so I went ahead and bumped it up to 40 degrees for the next heat. Yes it was fast, but it came off the track after 6 minutes at 212F Backed it down to 38 degrees and it ran cooler, but not as fast as I wanted. Will find the sweetspot at some point.
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Old 08-15-2012, 03:42 PM
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Last weekend I had mine at 3.9 and 40*, motor ran 175*. Do you have a fan on the motor?
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Old 08-15-2012, 03:44 PM
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Originally Posted by wtcc View Post
Did someone ever notice the strange noise the motor makes? Maybe just mine... On track it sounds like a mix of a combustion and electric motor. I checked everything: ball bearings are ok, gear mesh and pinion are ok, too. If I change the motor the car sounds like every other 1/10 TC. Power and temperature are ok. Maybe there is a resonance with the 7.5t sonic just with the TC6?
Check to see if either the rear bearing housing or the rotor is tweaked. Loosen the 3 screws that hold the motor together slightly and roll the motor, you will see the can wobble if this is the case
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Old 08-15-2012, 04:00 PM
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Originally Posted by Rockin G View Post
Update, I ran my TC 6 17.5 blinky this weekend. I had 3.89 FDR and started out at 36 degrees in practice and first heat. I didnt get a chance to temp it because of tech impound. Felt a little slow so I went ahead and bumped it up to 40 degrees for the next heat. Yes it was fast, but it came off the track after 6 minutes at 212F Backed it down to 38 degrees and it ran cooler, but not as fast as I wanted. Will find the sweetspot at some point.
Last weekend was appallingly hot. Our motors were coming off the track @ 180F in 12th scale(17.5 non-timing). For reference, I have never had my 17.5 Reedy above 135F in 12th before.

I would have been very surprised to see any of the competitive 17.5 Sedans come off the track under 200F out there, fan or no fan. When the track temp is 150F+, the motors get toasty.
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Old 08-15-2012, 05:17 PM
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Originally Posted by Rockin G View Post
Sean, or any....Just picked up the 17.5 Reedy to run in 1/10 TC in blinky mode. Is this still a good starting point or has more testing been done? If so, where should we start? Thanks in advance.





Update, I ran my TC 6 17.5 blinky this weekend. I had 3.89 FDR and started out at 36 degrees in practice and first heat. I didnt get a chance to temp it because of tech impound. Felt a little slow so I went ahead and bumped it up to 40 degrees for the next heat. Yes it was fast, but it came off the track after 6 minutes at 212F Backed it down to 38 degrees and it ran cooler, but not as fast as I wanted. Will find the sweetspot at some point.
Yes, and as James said, it was hot out, that day. Ambient 102, track between 140-150. Yes fans on both ESC and motor.
Attached Thumbnails Reedy Sonic-imag0742.jpg  
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Old 08-15-2012, 05:32 PM
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A better fan will get you another 10-20* off the motor, integy fan/heatsink combos aren't really that effective, and that heatsink may be hurting you. I would suggest a side piece racing seis fan. If you can, try to get a baseline in more ideal conditions, as james said there's pretty much no way your gonna be under 200 with those conditions. If you have a setup that runs 170-180 when its more ideal, then its not such a big issue if you get over 200 when the conditions get hot.
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