10.5 ( 19 turn ) Gearing for 2wd

[gazoff]

Hi
Can anybody give me some advice on gearing a 10.5 (19turn) in a B4 ?
I am running the car at Worksop this weekend with a 10.5 sintered speed passion and lipo ( electrics from touring car ).
Would appreciate advice on 19 turn gearing also.
Thanks.

[danDanEFC]

I ran a 23 pinion and the 81 spur in my B4 when i used my novak 10.5 indoors. Like the book says.

speedo never even got warm so you could probably go lower.

[RogerM]

I run my Speed Passion 9.5T indoors on 24/76 in my RB5 (same internal ratio as a B4). That is for a VERY small and tight track, on a bigger track I think it could go 1 or 2 teeth higher and would probably start with something along the lines of 26/78.