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Author Topic: chain size  (Read 3080 times)
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toxic_j_2007
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« on: April 20, 2008, 09:31:49 PM »

what pitch chain do you guys usually run on your setups? I'm running a 40 pitch ag chain and am stretching the #$!@ out of it!! mad2 BTW this chain is from the centrifugal to the transaxle, not from the tranny to the live axle.
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Chris
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« Reply #1 on: April 21, 2008, 06:43:35 AM »

How new is the chain? I'm running 35 from my transmission to the axle.
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toxic_j_2007
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« Reply #2 on: April 21, 2008, 07:19:45 PM »

brand new, straight out of the box...

I thought a little stretch would be expected, but this is more like it's seizing up or something.
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Chris
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« Reply #3 on: April 21, 2008, 07:46:49 PM »

Yeah, some streach is expected with use, but if it's too much you have some sort of problem
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toxic_j_2007
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« Reply #4 on: April 21, 2008, 08:03:51 PM »

I just thought, I'm running a 12 tooth sprocket on the tranny and an 38 tooth on the engine. could this be causing it to bind. I know with a belt, the more surface the better, does this apply for teeth on a sprocket?
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« Reply #5 on: April 22, 2008, 01:44:32 PM »

Yes, the more surface the better, but it seems like you're a bit over-geared which could be putting to much stress on the chain
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toxic_j_2007
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« Reply #6 on: April 22, 2008, 10:03:35 PM »

from my math, it gives it a top speed (3600 rpm in 5th, 18" tires) of about 37 MPH... instead of counting revoluthins per input shaft, I wrote an excel worksheet and counted each sprocket inside the tranny. (had it apart anyways to lock the rear end)
Posted on: April 22, 2008, 03:12:48 PM
I double checked my math and was using the wrong #'s....

top speed is about 26MPH (5th @3600rpm, 18" tires)
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ryf
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« Reply #7 on: April 23, 2008, 06:31:04 AM »

that is theoretical speed, you may be off +/-5% due to belt slippage and tire inflation (over or under)  not a biggy, but you need to be aware
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