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Old 12-29-2006, 08:18 AM   #16
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Quote:
Originally Posted by nexxus
I really don't get this "4-6 pinions higher" I tried that and the motor was simply too hot!

I gear a CO27 Stocker on my FK05 at 20/87

The SS13.5 I have settled at 19/87

That's one pinion LOWER
What was the temp of your 13.5? I just bought mine and will be running it tomorrow so I'm curious...

I do see the logic behind it though...the 13.5 is a lower RPM motor than the CO27 but is a much higher torque motor so you would have to gear it much higher to get the same speed. And with that torque it should be able to handle the lower FDR...
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Old 12-29-2006, 08:31 AM   #17
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Quote:
Originally Posted by nexxus
I really don't get this "4-6 pinions higher" I tried that and the motor was simply too hot!

I gear a CO27 Stocker on my FK05 at 20/87

The SS13.5 I have settled at 19/87

That's one pinion LOWER
Your car will be way slow and the motor will be hot due to the rev.....
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Old 12-29-2006, 11:33 PM   #18
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At one pinion lower, the car was slightly quicker than the brushed stockers down the straight, and came off at 120 degrees.
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Old 12-30-2006, 12:22 AM   #19
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By the time you get it just perfect. They'll change the track to a real open fast lay out. then it starts all over.
I found the same or 1 tooth taller to work pretty good. I dont run one but that is pretty good at our track. I ran 1 one night. And geared 1 tooth taller.
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Old 12-30-2006, 12:30 AM   #20
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nexxus 1 tooth lower was faster because most stock racers are over geared.
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Old 12-30-2006, 09:56 AM   #21
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I have the sintered rotor so dose that mean i go up 8 teeth or more from my brushed motor?I have a 112 spur and a 28 pinion on a t1fk05 and i am still new so i dont know what really to do.
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Old 12-30-2006, 10:06 AM   #22
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Watch your lap time, try and gear it so that your laps start and finish the same.
Now your close to the perfect efficiency, for that lay out. More technical, gear down, more flowing gear up. I would never go more than 1 tooth.
Be carefull its easy to over gear if the motor is slower than the track.
I'd try and stay around 120 degrees. With a 13.5. I hope that helps. I like to ask the fast guys at my track there roll out. then I gear down a tooth or two and go from there.
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Old 12-30-2006, 10:15 AM   #23
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ok thx
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Old 12-30-2006, 10:20 AM   #24
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Do i use the #3 program on the speed control?
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Old 12-30-2006, 11:28 AM   #25
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If its novak use any. Trial and error there. I use #4 in a 4300 class. Sintered rotor. The drag brake can be allittle much, but nothing alittle forwad throttle adjustment cant fix.
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Old 12-30-2006, 11:29 AM   #26
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If its LRP then yes #3.
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Old 12-30-2006, 12:03 PM   #27
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for me and yok bd, the 13.5 likes a tall spur gear 112, pinion is a 40 final ratio is a 5.6, i have the upgrade rotor installed. temp is 125 degrees, but we are running 8 minute heats and mains. i did try higher ratios, lap times were the same but the temp went up. hope this helps.
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Old 12-30-2006, 12:47 PM   #28
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Quote:
Originally Posted by Racingfreak6
Do i use the #3 program on the speed control?
yes #3
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Old 12-30-2006, 12:53 PM   #29
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I ran mine at a 34mm roll out on a medium/small tight track. It came off at 125F. Was slower than the C027's on the straight but it looked like someone was kicking the car off every corner it had so much bottom end.
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Old 12-30-2006, 12:55 PM   #30
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Quote:
Originally Posted by wvince
I ran mine at a 34mm roll out on a medium/small tight track. It came off at 125F. Was slower than the C027's on the straight but it looked like someone was kicking the car off every corner it had so much bottom end.
go up about 2 more teeth , that motor likes alot of gear!
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