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sikeston34m
RC-Monster Brushless
 
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Join Date: Sep 2007
12.23.2007, 01:22 AM

Hey Linc,

I'm Brain Storming again. LOL

Correct me if I'm wrong, but since the new E maxx has a Revo Style Slipper, won't the Revo Mod 1 Spur fit this?

Let's go with the 40 tooth Mod 1 Revo Spur. I notice Mike has those in stock. While we're ordering, let's get us a 25 tooth Mod 1 Pinion gear and maybe a 20 tooth Mod 1 as well.

Then let's turn to AXI for a 2826/10 Outrunner motor. The motor shaft length is exactly 20mm! Perfect for this. Let's get a motor cooling fan too.

I know this is a bigger heavier truck than the Redcat but now we've got gears AND a good slipper.

Here's some gear figures that I put together.

Stock E maxx

68 tooth spur 19 tooth motor pinion 3.58:1 gear ratio

If the motor spins 20,000rpm, the tranny input shaft is spinning 5587rpm

Revo

AXI 2826/10 GOLD LINE 920kv 3-5 Lipoly current capacity=42amps/60s

40 tooth Mod 1 spur 25 tooth pinion 1.6:1 gear ratio

4S Lipo = 14 volts under a load 12,600rpm @ 900kv

7875 input shaft rpm with a 25 tooth pinion.

6300 input shaft rpm with a 20 tooth pinion

I'm really tempted to try this setup.

I wonder what the gear ratio is inside the tranny from input shaft to output shaft?

I'm thinking gearing it high like this will be best because the outrunner will make so much more torque than both the Titans. Then add the 2 speed kit to the equation. We've got Gears!

What do you think Linc?
   
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