The following warnings occurred:
Warning [2] Undefined property: MyLanguage::$archive_pages - Line: 2 - File: printthread.php(287) : eval()'d code PHP 8.1.28 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/printthread.php(287) : eval()'d code 2 errorHandler->error_callback
/printthread.php 287 eval
/printthread.php 117 printthread_multipage



Austinsevenfriends
gearbox/axle combination AND wheel size table? - Printable Version

+- Austinsevenfriends (https://www.austinsevenfriends.co.uk/forum)
+-- Forum: Austin Seven Friends Forum (https://www.austinsevenfriends.co.uk/forum/forumdisplay.php?fid=1)
+--- Forum: Forum chat... (https://www.austinsevenfriends.co.uk/forum/forumdisplay.php?fid=14)
+--- Thread: gearbox/axle combination AND wheel size table? (/showthread.php?tid=6030)

Pages: 1 2


gearbox/axle combination AND wheel size table? - JonE - 28-04-2021

I know the common standard and aftermarket gearbox/ gear cluster choice tables posted on the forum in the past... and I know the Williams book has the wheel factors for 15" up to 19" in all tyre sizes.
I just wonder has anyone already produced a table for comparing ALL the variables? Or at least some combinations?


RE: gearbox/axle combination AND wheel size table? - Renaud - 28-04-2021

Hi Jon,
Would you mean an Excel, or other, file with gearboxes and tyres combinations? giving speed versus rpms?


RE: gearbox/axle combination AND wheel size table? - JonE - 28-04-2021

yes - that sort of stuff..!
excel even better because presumably I could then alter it for adding back axle ratios...


RE: gearbox/axle combination AND wheel size table? - Renaud - 28-04-2021

I'll be pleased to do that. I need only to collect datas.


RE: gearbox/axle combination AND wheel size table? - Charles P - 28-04-2021

Try this

https://www.dropbox.com/s/43ct6fxe9no5skr/gearbox%20ratios.xls?dl=0
Hopefully the link works


RE: gearbox/axle combination AND wheel size table? - Renaud - 28-04-2021

Oh I WOULD of course include back axle ratio!
I believe I can find everything in Bill Williams?
If you have more data available just direct me please.


RE: gearbox/axle combination AND wheel size table? - JonE - 28-04-2021

Renaud - thank you for enthusiasm but check out Charles' post - it may already all be done!!
Thanks all - will get reading....


RE: gearbox/axle combination AND wheel size table? - David Stepney - 28-04-2021

Try appendix 2 of Bill Williams book “Austin Seven Specials. This contains everything you would want to know on the subject.


RE: gearbox/axle combination AND wheel size table? - Ian Williams - 28-04-2021

There was a good section on the Speedex site relating to gear ratios, wheel sizes and engine revs. worth looking at if its still there.


RE: gearbox/axle combination AND wheel size table? - Chris KC - 28-04-2021

There was Ian, though if memory serves me well it contained an error in the ratios for the crash 4-speed box, might be worth double checking the numbers.