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Old 05-02-2017, 12:04 AM
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Default Timing and gearing

Hi guys. I'm looking to find the right timing and gearing for my TSR the one 17.5. I will be using it for my touring car on a 90x45 indoor carpet track. Thanks in advance

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Old 05-02-2017, 04:19 AM
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Originally Posted by Yolks_r55 View Post
Hi guys. I'm looking to find the right timing and gearing for my TSR the one 17.5. I will be using it for my touring car on a 90x45 indoor carpet track. Thanks in advance
We typically start around 46* and a mid 4.2 FDR

If the track is technical go to a mid 4.3 FDR and 48 to 50*
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Old 05-02-2017, 05:11 AM
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Originally Posted by sg1 View Post
We typically start around 46* and a mid 4.2 FDR

If the track is technical go to a mid 4.3 FDR and 48 to 50*
Thanks Sg1 I will definitely try that. One more thing tho, what's the max temp should I expect with this setup?
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Old 05-02-2017, 05:21 AM
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Originally Posted by Yolks_r55 View Post
Thanks Sg1 I will definitely try that. One more thing tho, what's the max temp should I expect with this setup?
With a good fan we saw temps from 130 to 150*F depending on traction and driving style over the weekend.
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Old 05-02-2017, 06:06 AM
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Originally Posted by sg1 View Post
With a good fan we saw temps from 130 to 150*F depending on traction and driving style over the weekend.
Thanks!
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Old 05-02-2017, 06:17 AM
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Originally Posted by Yolks_r55 View Post
Thanks!
No problem!

Spot check temps after 2 minutes

If the car lunges way at the end of the straight and feels soft off the turn drop a gear.

If it lacks top end go up 1
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Old 05-02-2017, 06:01 PM
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Originally Posted by sg1 View Post
We typically start around 46* and a mid 4.2 FDR

If the track is technical go to a mid 4.3 FDR and 48 to 50*
Does this also apply to the 21.5 motor or does this motor need different gearing compared to the 17.5?

For an outdoor track that's about 180 x 80 ft what would be the recommended gearing to start with for for the 21.5 motor in a touring car?
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Old 05-03-2017, 04:20 AM
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Originally Posted by jdawg81 View Post
Does this also apply to the 21.5 motor or does this motor need different gearing compared to the 17.5?

For an outdoor track that's about 180 x 80 ft what would be the recommended gearing to start with for for the 21.5 motor in a touring car?
For 21.5's on larger outdoor tracks try starting at 46* on a motolyser and a 3.4 to 3.5 FDR.

I have feedback from some guys who have gone to a 3.1 to 3.3 FDR at 48*, but start off safe
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Old 05-03-2017, 04:36 AM
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Originally Posted by sg1 View Post
For 21.5's on larger outdoor tracks try starting at 46* on a motolyser and a 3.4 to 3.5 FDR.

I have feedback from some guys who have gone to a 3.1 to 3.3 FDR at 48*, but start off safe
Large outdoor track 3.39fdr at 51degrees it's a rocket with a r1 fan comes off the track about 138degrees that's in the Florida heat. Timing at 51 on a motolyzer
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Old 05-03-2017, 04:43 AM
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Originally Posted by Marcos.J View Post
Large outdoor track 3.39fdr at 51degrees it's a rocket with a r1 fan comes off the track about 138degrees that's in the Florida heat. Timing at 51 on a motolyzer
The TSR may generate a bit more heat at 51 then the R1.

If traction is down some you may get away with it
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Old 05-03-2017, 04:44 AM
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Originally Posted by sg1 View Post
The TSR may generate a bit more heat at 51 then the R1.

If traction is down some you may get away with it
It's a TSR motor with an R1 fan blowing on it traction was never down
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Old 05-03-2017, 04:58 AM
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Originally Posted by Marcos.J View Post
It's a TSR motor with an R1 fan blowing on it traction was never down
Gotcha! That's alot of gear and timing...lol...

You're chassis must be spot on!
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Old 05-03-2017, 05:03 AM
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Originally Posted by sg1 View Post
Gotcha! That's alot of gear and timing...lol...

You're chassis must be spot on!
For sure! my drivetrain is pretty free , zero drag brake
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Old 05-03-2017, 07:39 AM
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Is it best to leave timing where it is set at for 2wd buggy? Run on both medium sized and small track and the small track I drop 2 teeth in pinion. I ask as I've had other brand motors whose sensor board deviations jump when adjusting the timing board. Currently my motor is set at 44 degrees. Is there an optimum timing/or amp draw for 2wd applications or best served just leaving timing as is? Thx all

Originally Posted by Marcos.J View Post
Large outdoor track 3.39fdr at 51degrees it's a rocket with a r1 fan comes off the track about 138degrees that's in the Florida heat. Timing at 51 on a motolyzer
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Old 05-03-2017, 08:05 AM
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Originally Posted by JAE View Post
Is it best to leave timing where it is set at for 2wd buggy? Run on both medium sized and small track and the small track I drop 2 teeth in pinion. I ask as I've had other brand motors whose sensor board deviations jump when adjusting the timing board. Currently my motor is set at 44 degrees. Is there an optimum timing/or amp draw for 2wd applications or best served just leaving timing as is? Thx all
maybe but im running tc not 2wd buggy
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