Garry

I have a bravo xz drive with 1.50 gears right now.
What ratio would you use in a Imco lower to get a final ratio of 1.36 with out changing the upper gear set?

formula31

I might be wrong on this, but I think the only way to get to 1.36 is to change the upper gears.

Raypanic

Yep uppers

CigDaze

I think that is also the case...If I remember correctly, the lower unit gears are 1:1(equal), so there's no reduction there.

sterndrivespec

there are gear sets available from merc that will change your xr into a 1.36 or a 1.25.these are for the lower,[gearcase]i have them in stock if you need them

cobra marty

The XR 1.5 has upper gears of 19/16 teeth and lower gears of 19/15 teeth. By changing the lower gears you can get the different ratios. New lower gears of 17/15 will give 1.3458 and new lowers of 16/15 will give 1.266.

formula31

Cool, learned something new today. Thats only the XR though right?

CigDaze

you and me both f31

sterndrivespec

that will work on the xz also.if you have a 1.36 xz you can end up with a 1.12 ratio

Garry

So with the Imco lower can you order it with the correct ratio to get me to 1.36 or is this a merc deal only?