Jam-ehz

iTrader: (6)

Here's a posting at one of our local tracks, regarding the new X12's from Steve Bortolotti, our local Tamiya racer/rep.

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Now that the Reedy x12 13.5's have hit the shelves, I just want to notify everyone of the MAJOR gearing difference between these motors and the original x11's that some of you may already have. Since the TCS race is coming up on Sunday, I'd hate to see the GT1 guys blowing these up due to confusion as to what gear to run. The final drive ratio you should be shooting for with this motor is between 6-6.3. On the Tamiya 416 you will want to run something between 33-35t pinion with the stock timing on the motor. I am telling you this because I know I am (and a lot of others) are running between 44-47t pinion on the x11 motor.

Hope this helps some of you out so you don't over-heat your motors,

Steve
_________________
Tamiya | Reedy | LRP | XXX-Main
2008 Tamiya GT1 North American Champion

Original post: http://fastcats.ca/forum/viewtopic.php?t=5814

Sean Cochran

iTrader: (1)

In addition to what Steve said you should also turn down the timing in your SC.

We have been running our 13.5t at 6.30 or less final drive. Using box timing insert, which is oo dot, and a SPX on TP#6. Motor is very fast and runs 165F.

If you "have to" run more SC timing I would recommend going to a oooo dot insert and lowering the gear to around 7.00 to start, it might be necessary to go even lower. Motor will most likely run closer to 200F this way.

masterhit

iTrader: (16)

Do you have a recommended starting FDR for the 17.5 X-12 in rubber touring?

Thanks,

Mike Slaughter

Stein Tumert

The temp depends on the gearing and the setting in your esc. If you run esc with stock programs which advances the timing, expect to have to change the gearing...

or8ital

iTrader: (38)

Has this motor been tested with the black diamond?

dsyed1

any news on when the SXX StockSpec speed control is being released for the US market?

bazspencer

Hi,which would be the main differences between spx stock spec and sxx stock spec? Tnx!

JordanC

iTrader: (8)

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Robert_K

iTrader: (2)

Guy's

Has anyone tested these X12 10,5T motor's in a 1:12 scale?
What gearing should you use on a large track.

And wat timing insert do you recommend to use in the 1:12 scale? The oooo with SPX Profile 6? Or something different?

thanks for helping me out.

Best Regards

Robert

CarbonJoe

EA ran the X-12 17.5 with the BD ESC at the Indoor Champs.

Mike Blackstock

iTrader: (1)

Robert,

I would start with profile 6 with the speedo and 0000 dot timing and try something close to 40 /80 and go up from there. This should be a good starting point. When i ran the motor i used the SXX on profile 10 and ran a gear of 40/80 with 1.72 tires . run it like this and temp it and go up from there. some people where 3-5 teeth higher.

Hope this helps.

Mike

Robert_K

iTrader: (2)

Thanks Mike, I'm going to try it :-)

Greetings Robert

jag88

iTrader: (1)

+1

TommyBlazin

iTrader: (29)

SO I GUESS this sxx stockspec really isnt coming out any time soon..

burito

I had mentioned in the other thread about release date for SXX StockSpec: http://www.rctech.net/forum/6526945-post810.html

Obviously it is december now... but as I mentioned in my previous reply, there may be small delays due to component shortages!
As it looks right now we start shipping SXX StockSpec to distributors and shops in mid/late January.