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GT12-RT

Old 03-02-2022, 04:07 AM
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I thought I would start a new thread dedicated to the surging GT12 with SJT tires class.
Feel free to fire away.
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Old 03-02-2022, 05:19 AM
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Does the gate run open gearing?
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Old 03-02-2022, 06:06 AM
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Very cool.
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Old 03-02-2022, 08:00 AM
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Originally Posted by mrreet2001
Does the gate run open gearing?
yes. Had to so that some platforms could run.
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Old 03-04-2022, 03:30 PM
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Default GT12r

At my club (CTSR) we also have this class. We are six racers and still grow. CTSR 1/12 GT12r class official rule : Motor Reedy 17.5 fix timing / SJT rubber tires / Gear: 72/48 / Lipo 1s roar (max 4.22v) / Weight: 780g / Body: gt12

Picture of my car: Xray X12 2022 ball diff with a Agata body

.
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Old 03-04-2022, 05:02 PM
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Is there a way of reducing the rear axle width of an AE R12 5.2? Seems like the older bodies specifically for GT12 are 165mm or less. Thanks in advance

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Last edited by stubaxle; 03-04-2022 at 05:15 PM.
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Old 03-05-2022, 04:18 AM
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Originally Posted by stubaxle
Is there a way of reducing the rear axle width of an AE R12 5.2? Seems like the older bodies specifically for GT12 are 165mm or less. Thanks in advance
I know the body doesn't mean much in performance (some are clunkers though). Look for bodies that are wider. like the Akura or PF C8. That lets you run the car at 172 without tires sticking out.
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Old 03-06-2022, 07:21 PM
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The Seven20 is a nice body to toss into the mix too.
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Old 03-07-2022, 03:32 AM
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Originally Posted by Red5Ltr
The Seven20 is a nice body to toss into the mix too.
If you could find one!
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Old 03-07-2022, 10:49 AM
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Got my on the track yesterday for first runs. Got 3 weeks till it’s gets raced at the track in the video. I’m about 2 seconds off the previous race winner time. About a second off most of the pack.

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Old 03-17-2022, 07:04 PM
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For those of you running USGT fixed timing motors, do you have a suggestion for a starting point for gearing/rollout? We've been running open motor. Not sure where to start with the fixed timing stuff. Thanks.
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Old 03-17-2022, 07:52 PM
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Originally Posted by MC Hamilton
For those of you running USGT fixed timing motors, do you have a suggestion for a starting point for gearing/rollout? We've been running open motor. Not sure where to start with the fixed timing stuff. Thanks.
In the video I posted. I was running an 80t spur. Was told need to be in lower 70s. With the 80T high 40s/low 50s is what was trying.
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Old 03-17-2022, 08:30 PM
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Default GT12r gear

I use in my GT12r: spur 72t & pinion 48t.
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Old 03-17-2022, 08:31 PM
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Seems pretty close to where we are with open motor... maybe a tooth higher.
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Old 03-17-2022, 09:24 PM
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Originally Posted by MC Hamilton
For those of you running USGT fixed timing motors, do you have a suggestion for a starting point for gearing/rollout? We've been running open motor. Not sure where to start with the fixed timing stuff. Thanks.
In Omaha we run the usgt motor and around 100 mm roll out
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