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Old 07-31-2013, 03:59 PM   #1
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Default X-ray T3r VTA gearing

I have a T3r that I'm running VTA, I know nothing about the car. We race in a parking lot on a medium size track. We have one straight about 75 feet long, the rest is road course. I'm seeking help with FDR's that will keep the pace, without over heating. The chassis is all stock, and I have no ides what pitch gears it has. Any help is greatly appreciated!!
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Old 07-31-2013, 05:35 PM   #2
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I run my VTA on asphalt at 4.2 with my 21.5 motor and going to try 3.3 or 3.6 with my 25.5 motor. I run a TC6 but FDR should be relevant. Try something in those ranges to start with and go up or down from there checking temps.
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Old 07-31-2013, 06:03 PM   #3
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I run a 64p 47t pinion 96t spur on carpet and it works well. Somewhere between 3.8 and 4.1 is where I prefer to stay on the carpet. I've never run on asphalt though.
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