Sir 51D3WAYS

I reckon it'll be stiff longitudinally, but it will be torsionally flexible.

kentech

iTrader: (6)

Posted the full product description on the TB Evo 8 now, containing all details of the kit:
https://kentech.wordpress.com/2022/0...o-8-full-info/

Nerobro

iTrader: (2)

Wonderful, as usual.

mac853

I think this chassis is good to run if converted to FF configuration.
Unfortunately nowadays the International race rules of FF disallowed to run "self-made" chassis, and the other problem is the gear ratio is limited until 5.0 or 4.5 fdr, the weak point of shaft cars of they would have disadvantage in case they run same gear ration as belt drive cars.

foampervert

iTrader: (5)

Considering the awesomatix a700 ffg/rfg and xpress at1 ffg/rfg systems to counter torque steer. Will the tb evo 8 have issues with torque steer?

For that matter, why is torque steer not an issue with 4wd buggies? How is it an issue only for onroad shaft drive cars?

gigaplex

iTrader: (2)

Buggies are generally heavier, their wheels have a larger gyro effect, so are less susceptible to the inertia of the rotor.

I'd expect the Evo 8 to have mild torque steer with a powerful motor.

Sparrow99

iTrader: (-1)

Spoiler 🚨

Speed Chaser

iTrader: (5)

I want one.

Sir 51D3WAYS

They do torque steer, it's just not easily perceptible as the surface is moving about underneath them. Try a 4wd shafty on high grip astro with a mod motor, it'll torque steer.

NutDriver

iTrader: (26)

Can someone tell me the transmission ratio for the Evo 8?

disaster999

iTrader: (1)

99.99% 2.5

NutDriver

iTrader: (26)

That's disappointing. I wish that Tamiya would move into the brushless era and adjust to 2.0 or numerically lower.

fat500

iTrader: (48)

diff gears would be too big.....to be efficient.....car would be slow.....

gigaplex

iTrader: (2)

To get the lower IR number, the diffs need to get smaller or the input gear needs to get bigger.

Papi

Ironically, Tamiya used to have lower gear ratios in the brushed era. Evo4 gears had 2.2 ratio and they could be fitted into Evo5/TB03 gearbox (which moved to 2.43), with some mods. But I'm not sure if they worked with gear diffs, plus they are getting harder to find.

But I think there was a reason behind the slower gear ratio - reducing torque transmitted through the shaft to reduce twisting of the chassis.