8.5T motor gearing in a B4
 

I've just got an 8.5T motor as a 6.5T is too quick for my poor driving style. ??/?? seems about the most popular! there are just so many different combo's. But what do you run? I'll be outdoors on Astroturf. So can you give a good starting point or recommend gearing for spur gears. Ta

This website might help you mate.

http://www.comeseethis.com/gearing/Default.aspx


Carl

I'm using a 23T pinion with the standard spur gear (81T??) -that's using an 8.5T Losi motor.

is that in a T4 or a B4 cos the roll length of the wheels affects it, Ta though

Ooh that gear chart is nerd porn............. gonna go crack one out ( is that the expression) to the sums on there. :woot:

Shame they don't list Speed Passion v3 motors...

It's in a B4, my sig's not been updated sorry! Think I was using a 17T or so in the T4.

OK, Ta

thanks for posting that carl.
will come in handy :thumbsup:

yeah cool site. What's the most similar motor to a speed passion on this site?

25t on a Tekin 8.5

None!

They all rev different, have different torque and like to run at different temps.

Not sure how that site helps really.

Mike, check your PM

Matt

i run 24t with an 81t spur on a lrp x12 8.5 and it seems great, although i'm pretty crap.

:thumbsup::thumbsup::thumbsup::thumbsup:

I agree now about the gearing site, I bought a robitronics 8.5 which is about the same KV's as a 7.5 speed passion and £20 cheaper. Didn't bother with the gear site, just asked Keith at Microtech for a good starting point. Advice from a quality racer with amazing knowledge was better than a lot of numbers. The pinion I am running at the mo is 4 over what was recommended by the site, But was 1 away from what keith told me and is sweet as a nut.

From my experience then i've posted up requests to the guy who runs this site to add motors and things and he's done it within days....I like!:thumbsup: