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Old 11-18-2012, 11:20 PM   #511
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I have a sonic 17.5, which I use for blinky, however here in Denmark we can only gear 4,0 this season.
I can turn the timing all the way to 50 without the motor even gets over 60`c.
Anyhave know what I have to do to get more rip out off the motor?
I have already tried 40 and 45 timing, but then the motor run even cooler.
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Old 11-19-2012, 12:41 AM   #512
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Originally Posted by Cp Grafix View Post
I have a sonic 17.5, which I use for blinky, however here in Denmark we can only gear 4,0 this season.
I can turn the timing all the way to 50 without the motor even gets over 60`c.
Anyhave know what I have to do to get more rip out off the motor?
I have already tried 40 and 45 timing, but then the motor run even cooler.
Run bigger tires?
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Old 11-19-2012, 01:07 AM   #513
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We run sorex 28 as a control tires this season
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Old 11-19-2012, 01:15 AM   #514
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Quote:
Originally Posted by Cp Grafix View Post
I have a sonic 17.5, which I use for blinky, however here in Denmark we can only gear 4,0 this season.
I can turn the timing all the way to 50 without the motor even gets over 60`c.
Anyhave know what I have to do to get more rip out off the motor?
I have already tried 40 and 45 timing, but then the motor run even cooler.
A smaller rotor will rev more so should be a good option if you're limited on gearing.
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Old 11-19-2012, 01:25 AM   #515
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A smaller rotor will rev more so should be a good option if you're limited on gearing.
Thanks I will look into it
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Old 11-19-2012, 04:46 PM   #516
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Thanks I will look into it
You're allowed to change rotors but not gearing?
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Old 11-19-2012, 08:54 PM   #517
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You're allowed to change rotors but not gearing?
I know right! different brand motors get geared differently to make use of its powerband. Unless everyone is running the same motor
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Old 11-19-2012, 11:06 PM   #518
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You're allowed to change rotors but not gearing?
we are allowed to change gearing, but 4.0 is minniuim we are allowed too
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Old 11-20-2012, 10:25 AM   #519
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we are allowed to change gearing, but 4.0 is minniuim we are allowed too
How big is the track you run on?

I'm currently geared 4.44 on a track 90' x 45' and my motor can get over 180F if I really drive hard.

Your track must be pretty big if your motor isn't getting hot geared 4.0 with max timing.
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Old 11-20-2012, 10:37 AM   #520
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How big is the track you run on?

I'm currently geared 4.44 on a track 90' x 45' and my motor can get over 180F if I really drive hard.

Your track must be pretty big if your motor isn't getting hot geared 4.0 with max timing.
I run a 3.84 FDR with this motor with 40 degrees of timing. When our track layout (80X45) is open (9.5 second laps) I get to about 160F with a fan. When it is a tighter layout (12 second laps) I can creep up to 175F.

-Kane
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Old 11-20-2012, 11:13 AM   #521
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reedy sonic motors work greagt highly recomend them !!!!
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Old 11-20-2012, 11:42 AM   #522
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Has anyone else had an issue with their sonic making a loud vibration noise? My 13.5 sonic was sounding like a freight train and after much inspection I realized that the stator was vibrating in the housing. It was not immediately apparent on how to fix it, so I just screwed some button heads into the endbell and jammed them against the stator. It has fixed the issue, but I'm not loving the solution. Anyone else have an issue similar to this with the sonic?
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Old 11-20-2012, 12:50 PM   #523
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Originally Posted by Kane-o View Post
I run a 3.84 FDR with this motor with 40 degrees of timing. When our track layout (80X45) is open (9.5 second laps) I get to about 160F with a fan. When it is a tighter layout (12 second laps) I can creep up to 175F.

-Kane
How do you find the torque with your setting?

I started with that gearing with less timing and found the motor really woke up when I increased the timing with less gearing.
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Old 11-20-2012, 11:12 PM   #524
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Hehe nope my track is 10x40 meters, so its kind small.
Here is a link of the track.
http://www.brc-racing.dk/viewpage.php?page_id=1
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Old 11-21-2012, 06:46 AM   #525
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I picked up a Sonic 13.5 for my CRC WGT at the end of last year's indoor season and I have been struggling to get this thing to keep up with everyone else. My car is slow down the straight and slow in the infield. I was running an LRP 13.5 before and it was faster. Can anyone recommend a good setup? I am running the following:

- LRP SXX V2 Stock
- ThunderPower 5400 65c
- 13.5 Sonic (stock rotor)

Track size is approximately 80x50 with the average lap times around around 10 to 11 second for WGT. This is for boosted class as well. I have tried some other suggestions from this forum but still haven't found the right setup. The guys running the LRP SXX V2 with the LRP x12 motors are killing me down the straight. They are running 55mm to 58mm rollout.
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