The following warnings occurred:
Warning [2] Undefined property: MyLanguage::$archive_pages - Line: 2 - File: printthread.php(287) : eval()'d code PHP 8.1.31 (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
Choice of Rear Axle - 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: Choice of Rear Axle (/showthread.php?tid=1289)

Pages: 1 2

RE: Choice of Rear Axle - Jamie - 24-06-2018

(24-06-2018, 10:10 PM)Stuart Giles Wrote:
(24-06-2018, 03:30 PM)Jamie Wrote:
(05-06-2018, 05:48 PM)Phil Kingdom Wrote: .......... Also choice of wheel size will also make a difference as to how the car performs

Phil,

I have checked and found that they are 17" wheels.

Jamie.

Early Ruby rear axle ratio is 5.25:1 that works out at just under 15 MPH/1000 RPM in top gear with wheel/tyre @ 26" diameter. The OHV Reliant motor is much more free revving than a standard A7 motor, should be OK at a sustained 4000 RPM as long as there's reasonable airflow to the sump or have an an oil cooler installed if not.

Stuart,

Thank you: this is good to hear. I did not know whether the Reliant gearbox might have had completely different gear ratios, meaning that the Ruby axle ratio would have been excessively high or low for practical purposes. It sounds like that it should all work nicely together.

Jamie.