Club126UK

Fiat 126 Chat => Tuning & Customising 126 Models => Topic started by: Gadge on November 24, 2007, 03:42:48 PM

Title: gear ratios
Post by: Gadge on November 24, 2007, 03:42:48 PM

just looking on the axel gersil site and they do two crown and pinion sets one at 9/39 and one at 8/39, i'm a muppet when it comes to stuff like this but what would be the differance?

Title: gear ratios
Post by: Maddog on November 24, 2007, 04:31:49 PM

8/39 is 4.975/1  and 9/39 is 4.33/1 so about 12% higher

50-mph with 8/39 will become 56mph with 9/39 at same rpm

however there is also a 41 tooth crown gear in the earliest aircooled.

my FSM did 82mph with the 9/39 gearing downhill and screaming its tits off

Title: gear ratios
Post by: MaLi on November 24, 2007, 04:35:01 PM

Quote from: "Maddog"

8/39 is 4.875/1  

 :D

Title: gear ratios
Post by: Maddog on November 24, 2007, 10:12:12 PM

Quote from: "MaLi"

Maddog wrote:
8/39 is 4.875/1


:D

did your mother never tell you it was impolite to point out other peoples mistakes :D

Richie