Chaincase whine with different gears

[Brett]

I currently changed gears to 20-42 team gears and they seem to whine with stock chain. Tried a different combo to 21-41 Polaris gears with still a whine. There is some dog leg in these combos. I thought possibly a bearing gone, so I switched back to original gears I had in 22-41 with hardly any dog leg. No noise. Anyone else have the problem with noise while changing gearing combos?

 

[Brock]

the 20/42 is a 2.10 ratio with 3/4" side slop
the 21/41 is a that's not even in the gearing chart but is a 1.95
the 22/41 is a 1.86 ratio with 1/2" side slop

looks like you had a ton of slop with what you tried to me?/
what gear ratio do you want for the axys??

 

[Brett]

It's an Indy 600. I was told by northstar Rick to start with 20-42 with his clutching for 660'

 

[Brock]

Ahh ok. That makes sense .
I thought you were talking about an axys chain case center to center.

 

[racerdave]

Did you also change to the IQR tensioner? That also causes some whine over the oem vespel one.

 

[Brett]

No still stock tensioner