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Which pinion for XXXT

Which pinion for XXXT

Old 03-06-2006, 02:33 PM
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Default Which pinion for XXXT

I have a XXXT MF2 and i am unsure on what pinion to use.
The reason i am asking this is because i have smoked a motor and i think it was because i was using the wrong pinion.
The setup was 27 turn stock pro Putnam motor with 20 tooth pinion.
I was running it on the road and the grass and then it started to smoke.
Any help will be appreciated.
Thanks
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Old 03-06-2006, 09:24 PM
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the gear sounds right, I would take a look at the motor, may be something shorted out.
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Old 03-07-2006, 12:30 AM
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Originally Posted by rusty_dagger
I was running it......the grass and then it started to smoke.

That's the problem right there. Grass is very harsh on motors, espescially in a smaller truck like that.
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Old 03-07-2006, 03:17 AM
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I have a couple of more motors on there way and some more gears so ill muck around a but more and see what happens.
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Old 03-23-2006, 05:18 AM
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This is getting very frustrating

I changed motor and put a 19 tooth pinion on, tested on the road checking to see if motor is getting hot. It was fine then on next pass i there was the smell of death.

Could my problem be the Nosram Tomohawk Reverse ESC????

Is there a setup on my XS3 that might help????

All i want to do is get the setup right so i can break my virgin status on the race track.
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Old 03-23-2006, 04:37 PM
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In order for me to help you I need to know what motor form the list is the one you have....The color of the can will work too.

http://www.putnampropulsion.com/putnam_stock.htm
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Old 03-23-2006, 07:58 PM
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What spur are you running? Try loosening the slipper, and checking the drivetrain for signs of binding.
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Old 03-23-2006, 08:40 PM
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Put it this way...

If you got the monster stock based one (teal can)

Your over-geard 3 teeth with a 86 spur....

In the grass your over geard like 4-5.

SO tell me what motor you have or I canot help...
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Old 03-24-2006, 12:47 AM
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The motor is a monster based stock.
The spur is 86 teeth.
There is no sticker left cause it melted off.
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Old 03-24-2006, 05:46 AM
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i run monster based motors in my mf2.with that motor i use no higher than 17 tooth pinion.cause of the monsters being a higher rpm motor.....with like a p2ke you can go up to like a 19 tooth pinion..that is both with a 86 spur.
esc is a maybe..electronics are wierd..if you are having the same probs gearing like this..try to swap out a esc.....

hope this helps.

matt
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Old 03-24-2006, 07:43 AM
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Corecto!

17 Would be MAX for a open, wide track.15-16 for the grass.Thats why you fryed your shit...
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Old 03-24-2006, 08:42 AM
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Is this a race truck or a basher truck? If it's just a basher truck (Which is kind of unusual to see, considering the MF2's reputation) then consider buying regular Monster Stock Pro's straight from Trinity. You don't ened a tuned motor for backyard bashing/grass running.
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Old 03-24-2006, 02:03 PM
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I will strip it down and put back together.
What setup is recommend for a smallish track with a combination of clay and gravel?

I think my best option will be to go to the track find someone with the same truck and then ask questions.

Thanks all for help and input.
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Old 03-24-2006, 03:01 PM
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A small technical track will benefit from lower gearing. Try to gear it so you top out about 3/4 of the way through the longest straightaway.

Keep the diff from slipping by ensuring it's properly tuned at all times. Set the slipper a bit loose if there is an abundance of loose soil and gravel, and find a line that your truck is comfortable running.

It is always best to find the local experts and ask them what you should do. The fast guys are always willing to lend a hand, and will give you pointers on the track and it's layout. It benefits them too, because if they have to dodge you everytime they go around the track, they can't go as fast. Most of the time they will spend some hands on time with you to make sure you're all set to hit the track.
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Old 03-24-2006, 07:00 PM
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I drove my stuff on grass and it never got warm. It really starts to get hot when you go from grass to pavement. The transition puts so much load on the motor. I burned a mod motor up in 2 accelerations and i had a 15/86 on a street because of the load.
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