CAT SX steel idle gear final drive radio chart
 

Final drive ratio chart for new (U3794) Layshaft with steel pinion setup.

http://i937.photobucket.com/albums/a...riveratios.png

Sticky? :thumbsup:

Excel File in Zip

cheers mate i have downloaded it for then i order my steel idle gear set.

but i dont quite get the chart is it possible to highlight then so they show which ones are idea and which ones aren't?

like this:

http://www.comeseethis.com/gearing/V...TransRatio=2.5

hope this helps

lewis

Is 10.4 the ideal FDR? I've been running 9.1 comfortably for a while now without overheating motors... Surely your FDR will vary between track layout, conditions and motor choice..?

If you know you want a 10.4 FDR just look around the chart :)

i have used this website a few times now and i think they are quite accurate.

i was just curious if you could highlight the chart you made like in the link?

lewis

I could, but not everyone uses a 10.4 FDR...

It would make is easy for you to read if you always stick to 10.4, but harder for everyone else who doesn't. You can edit the attached Excel spreadsheet for your own use if you require :)

just looking at some of the setup sheets posted by the team and FDRs are, 9.89, 10.30, 9.37, 9.80, 10.67, 9.80...

i guess your right, i'm a bit of a noob with cat it is still new to me. but it does depend with what motor your using, i'm using a 10.5t motor and the FDR is 8.2 so it will vary.

but hats off to you for creating the chart

lewis