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RX8 2014 internal ratio
http://forum.teamxray.com/viewtopic.php?f=47&t=18975
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Author:  lynx75 [ Sat Feb 07, 2015 13:46:14 ]
Post subject:  RX8 2014 internal ratio

Hi Guys,

Which is the internal ratio for the rx8 2014 please?

Drivetrain ratio if you prefer.

Thank you

Author:  brano [ Mon Feb 09, 2015 08:57:23 ]
Post subject:  Re: RX8 2014 internal ratio

Final drive ratio (FDR): 2-speed: 1st 7.86; 2nd 5.74

Author:  Roelof [ Mon Feb 09, 2015 17:12:56 ]
Post subject:  Re: RX8 2014 internal ratio

The internal ratio is set by the 2 pulleys on the rear belt.

Author:  lynx75 [ Mon Feb 09, 2015 23:17:04 ]
Post subject:  Re: RX8 2014 internal ratio

brano wrote:
Final drive ratio (FDR): 2-speed: 1st 7.86; 2nd 5.74



Many thanks. I am just wondering how you can calculate this please?

Author:  Roelof [ Tue Feb 10, 2015 16:48:41 ]
Post subject:  Re: RX8 2014 internal ratio

lynx75 wrote:
brano wrote:
Final drive ratio (FDR): 2-speed: 1st 7.86; 2nd 5.74



Many thanks. I am just wondering how you can calculate this please?

Rear pulleys are 48/20 = 2.4 (internal ratio)

Total ratio = (spur/pinion) x internal ratio

1st gear: (59/18) x 2.4 = 7.866
2nd gear: (55/23) x 2.4 = 5.736

Author:  lynx75 [ Thu Feb 12, 2015 21:55:12 ]
Post subject:  Re: RX8 2014 internal ratio

Roelof wrote:
lynx75 wrote:
brano wrote:
Final drive ratio (FDR): 2-speed: 1st 7.86; 2nd 5.74



Many thanks. I am just wondering how you can calculate this please?

Rear pulleys are 48/20 = 2.4 (internal ratio)

Total ratio = (spur/pinion) x internal ratio

1st gear: (59/18) x 2.4 = 7.866
2nd gear: (55/23) x 2.4 = 5.736


Thank you.

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