The maximum gear ratio.....

[charliebrown]

Ok the maximum gear ratio (if you used the pinion, idler, and spur gears) would be 2:1. Now, if you count the number of teeth between the spur and idler gear, there is:

12:1.....24 spur teeth and 6 idler teeth
9.86:1....23 and 7
8.25:1......22 and 8
7:1.........21 and 9
6:1.........20 and 10
5.18:1......19 and 11
4.5:1......18 and 12
3.93:1......17 and 13
3.43:1........16 and 14 (This is not the KIT RACER gears, it is if you had ZZ gears with the amount of teeth)
3:1............15 and 15 (half and half, lol)
2.625:1.......14 and 16
2.3:1...........13 and 17
2:1.......12 and 18


Here is how to find out what gear ratio you have:

For ZZ and MS gears, the pinion gear has to turn 3 times to turn the idler gear once, because the pinion has 6 teeth and the idler has 18 teeth that touch the pinion gear.

Now, take the idler gear's teeth (inner teeth, in the center) and the spur teeth and divide the number of spur teeth by the idler teeth and multiply that number by three to find out your gear ratio. That's it!

[charliebrown]

Why hasn't anyone replyed? This thread has been collecting dust for over 2 months!!! Why Why WHY???

[CheeseWarfare]

Sorry I was in the bathroom...



But thanks for the insight!

[charliebrown]

Originally posted by CheeseWarfare
Sorry I was in the bathroom...



But thanks for the insight!

You were in the bathroom for 2 months????? Wow. what were you doi....

Is there something you want to tell us, Cheesey???

[frizzen]

Hey, it's his. he can wash it as much as he wants.
--

I like the idea for the other gear ratios, but I don't think you'll be able to find the gears you want.

KIT racers will let you go down to like 3:1. Beyond that, good luck.

But if you find a source for the gears, we'd really like to know

[charliebrown]

Yeah, take the 12 center teeth of the green KIT idler gear, and use that for a spur gear. For the idler gear, take two ZZ/Bit idler gears and shave off the center teeth, and the back of those idler gears so you have two even surfaced idler gear teeth. THEN, glue them together so that they are tooth to tooth. that will be your new idler gear.

for the spur gear above, you may have to drill the center hole out a bit so it fits on the axle. Is that good enough for you???

[charliebrown]

I have been doing some research, and came up with this:

The KIT racer gear ratios are:

Idler gear teeth: 16
pinion gear teeth: 7

Now, for the gearing sets differences:

3.43:1: Spur teeth=18, center idler teeth: 12
3.95:1: Spur teeth=19, center idler teeth: 11
4.57:1: Spur teeth=20, center ilder teeth: 10

Now, if you had a 6T pinion gear, then the gear ratios wold become:

3.43:1 to 4:1
3.95:1 to 4.61:1
4.57:1 to 5.33:1

I tested these ratios with my motors. See, a ZZ motor is kind of bigger than the KIT motors and thus, they need a smaller pinion gear, 6T, to turn the KIT gears. So, I used an NX motor with the 4:1 ratio and got a real 6.64 mph, where as if you used a 2.6 motor with the 3.43 set, it becomes a real 5.92 mph. You've heard this a million times from me, and I'll say it again. The yellow ZZ motor with the ZZ red gears can beat the NX motor with the blue gears, so use as low a gear ratio as you can and use as high a motor rpm as you can. the four things that help speed factor are the motor rpm, the gear ratio, the wheel circumference, and the weight the car is pushing.

[charliebrown]

Whew! Sorry for the rant. So, what do you guys think?

[GerG]

Originally posted by charliebrown
You were in the bathroom for 2 months????? Wow. what were you doi....

Is there something you want to tell us, Cheesey???

He was constipated

[charliebrown]

Originally posted by GerG
He was constipated

LMFAO
I just crapped in my pants from that one! Wooo!