SC10 4x4 Thread
Tech Master
iTrader: (120)
Joined: Apr 2011
Posts: 1,076
From: SoCal - Chillin in the LBC
Is this the consensus? I have only run on my pinned mod once on a good sized indoor clay track. It ran pretty good. I guess I'll try a few more times pinned and then decouple and see how it goes that way.
I had it pinned on a indoor small clay track. worked ok. Unpinned and front 19T pulley was much faster and handled better.
Tech Master
iTrader: (120)
Joined: Apr 2011
Posts: 1,076
From: SoCal - Chillin in the LBC
What the stock setup does is allow the belt to slip independently from the rear, so while slipping the rear will always turn as long as the plates are moving since it's keyed to the shaft, but then the front pulley plate can slip to the point where no power is going to the front wheels especially during the first moments of acceleration when there is weight on the wheels. which is often the opposite of what you want to happen.
The pin mod locks that inner plate to the shaft just like the outer plate so that any time the shaft turns both front and rear will turn instead of letting the rear slip faster.
This is why people recommend the 19t up front with no pin mod, this will make the front wheels turn faster with the limited amount of power given by the slipper, where the pin mod accomplishes this by locking down front and rear.
Speaking of which, does anyone know what the front/rear bias actually is when using 20t for both pulleys and the pin mod? Does it make it true 50/50 (or 100/100 forget what the notation is) ?
Very nice, did you hand airbrush the flames and watermark or did you use a stencil? I've got a buddy who is into tattooing and is handy with the airbrush, I was thinking of letting him do a body for me then offering custom paint jobs as a side business if it turns out well. Seeing as how AE charges like $60 for their custom bodies I think we could do pretty well selling pre-painted custom bodies.
Until the exotech came out I was thinking about going down to my local machine shop and getting some steel plates cutout that I could then screw to the bottom of the center chassis with different weights via different thicknesses. I don't think it would reduce the flex the the exotech would, but should help a little if done right, then you could tune the weight to the track.
I used the 19 tooth outdoors on loamy and it felt like it overdrove the front wheels too much. I can see how it might work on a very tight technical course.
Why are idler gears breaking because of the pinning? Is there a metal replacement available?
Why are idler gears breaking because of the pinning? Is there a metal replacement available?



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