Comet Reverse gearbox

[Getsome]

OK, so I'm in the build off and I decided to deviate away from the original plans I bought and stretch the frame and go up to 11 gauge steel instead of the 14 gauge speced. Now I'm worried about the additional weight. I'm thinking I need to add a reverse. I've searched the web and the only thing I can find to handle the 420cc Predator engine is the Comet gearbox. Has anyone installed this unit? does it last? Good? Bad? any input would be greatly appreciated.

This is the one I'm thinking about: http://www.bmikarts.com/Comet-Forward-Reverse-Gearbox-_p_991.html

 

[Hellion]

Since there's apparently no 'yea or nay' on your inquiry, I think you need to be the Guinea Pig on this one, take one for the team, and try it out for all of us.

With an established name like Comet, I wouldn't be too worried.

 

[SkidooTNT]

You could design your own gear system. Just have to get off to shift.

 

[chancer]

I have heard of guys on here using that box before.
Not current users. But search the Forum and it may come up.
Here is another potion 189$
http://www.ebay.com/itm/Go-Kart-For...985421d:g:I40AAOSw0HVWDezJ&vxp=mtr&rmvSB=true
and
the Comet http://www.ebay.com/itm/Comet-Forwa...34a677f:g:cEYAAOSwcu5UUPgP&vxp=mtr&rmvSB=true

 

[Getsome]

Thanks for the link but that one is rated for up to 13hp. With the upgrades I'm installing, I'll be pushing 18hp. I bought the Comet. I'll keep everyone posted on performance. Check my thread in the build off. Florida Redneck is the title.