Axle Ratios Gmade/Wraith

[Muddydisco]

Hi Guy's I'm thinking of putting a pair of Gmade Portals under my wraith. But I'm struggling to find info if they'll need different gearing?
My wraith is running full stock diffs and transmission on 2s and 35t and I'm not quite happy with speed not much top end. So thinking of a 2 speed Transmission aswell. And now I'm completely lost in ratios, gear choices and teeth.

Only if there was an app where you just punch in teeth on each section and overall tyre diameter to work out a speed would be majic

Can some one point me to a configuration or the overall axle ratios and transmission ratios and I can look for the maths.

Thanks Nick

[John82601]

R1 R&P - 32/17=1.88:1
R1 Portal - 16/14=1.14:1
R1 Axle ratio - 1.88 * 1.14 = 2.14:1

Stock Wraith - 38/13=2.92:1

Looks like you're going to gain some wheelspeed with the R1 axles.

[Muddydisco]

Oh I would of guessed the other way around! So a 2 speed transmission will be great on stock 80/20.

[lilbp12369]

I know this thread is old but here is a link to something that might help you that you asked for in your first post. An R/C calculations conversion web page
R/C Calculations

[Wacki]

Originally Posted by lilbp12369

R/C Calculations

Definitely sticky material!