alto red wide band

[jimski]

Has anyone had these bands slip. I had the drum machined and all, billet servo the whole nine yards. Still will not hold at high rpm .Low rpm the shifts are extremly firm. The pump is 100% working perfect and everything is healthy. Just for shits and gigles I switched to a regular sized kevlar band and now it will cause whiplash at any rpm when it shifts. Weird.

I also noticed that the wide band hangs over the drum a little on 3 different rebuilds, does anyone know why? is there a wider drum for that band

 

[quickt]

I stopped using them years ago. I do a 6061 aluminum drum that's a little wider but still would not use a alto band on it.

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[bison]

What was the outside diameter of the drum?

 

[jimski]

That's a good question. The machinist would have to answer that. I did explain to them the concept and they understood. They just skimmed the surface and made it completely flat.
When I installed it I made sure I had the band as tight as possible without having it burn up.

Why does it overhang the drum a tad. How can I completely make it cover the entire surface of the drum, I think this is where my problem lies. The whole inside of the trans would have to come forward toward the pump for it to completely cover the drum

 

[quickt]

You stated that you only changed the band and the slip problem went away. Is this correct?

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[jimski]

You stated that you only changed the band and the slip problem went away. Is this correct?

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Yes i switched to a kevlar band and now the shifts will cause whiplash.

 

[Steve V]

Kevlar is very hard on the drum. Carbon band is currently the best.

 

[jimski]

Kevlar is very hard on the drum. Carbon band is currently the best.

carbon fiber? Sounds pretty promising. I always like to try something different, i really like the way the kevlar holds. Would you say the the holding power of the carbon is the same.

 

[SSedan64]

Carbon has more/better holding power, Kevlar has more longevity.

 

[Steve V]

I would ask Lonnie or Dave H both use them so my bet is there isn't an issue with carbon materials. Theirs is specifically made for them.

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