TryHard

iTrader: (4)

Different numbers of shims on the two positions of the upper arm. Image below shows this on some cars from ETS, with more rear castor to shorten wheelbase.

MKAH

Ah, I think I get it.
If you do a little more or less Shimms on one than on the other, you change the caster.
Doing the same amount of Shimms on both will change your camber.

Its a litle bit Like Awesomatix only without Turnbuckles.
Correct?



So correct?

OVA

iTrader: (86)

yes

rccartips

iTrader: (3)

Power delivery to the rear seems to be via 1 belt, while power to the front will have to go via 2 belts (and a very loose center belt). Still possible to have the front pull the car on power instead of the rear pushing the car (i.e. belt tension to front tighter than rear)? Thanks.

glennhl

iTrader: (16)

I've never bought into a tighter front belt making the front pull more than the rear pushes. Both belts drive the same, doesn't matter on the tension (unless it's so loose that it starts to skip or so tight that it binds up the bearings). I've always considered it to be just another urban legend of RC racing. And don't get me started on chassis flex being your friend!

disaster999

iTrader: (1)

There might be some truth to it, but we arent sensitive enough to feel the difference between a slack belt and taut belt. A slack belt needs to be pulled taut then stretched before power is transmitted. This problem will only be exacerbated by this car as there is an extra pully in the equation. as you also need to take up the slop/play between the pulley and shaft before transmitting power to the second belt, go through the pulling taut and stretching of the belt before transmitting to the front wheels. Again, all this comes down to if you can actually notice the difference on the track.

bertrandsv87

iTrader: (2)

Wow......What a design !!!

WayneKerr

iTrader: (2)

you guys know there are papers on this topic right?
belt tension vs efficiency isn't voodoo magic

gwhiz

iTrader: (1)

Please share

Lonestar

iTrader: (14)

and btw as you start adding asymetric camber shims, i.e.nonzero caster, the upper ball joints will start binding.... minor binding. but binding anyway....

Isaac

iTrader: (5)

Not seeing it binding much if at all.

glennhl

iTrader: (16)

Why would it bind? It's three ball joints, should be fine.

EDIT: Actually I am wrong and Lonestar is correct. Slight binding from the two ball joints being at an angle creating a longer distance between the balls. But probably very slight like he said.

OVA

iTrader: (86)

I over look So I reinstated ,it should works just fine

Isaac

iTrader: (5)

https://www.ets.racing/2022/11/26/un...mids-iris-one/

ChrisP

iTrader: (11)

After looking at the manual and the pictures from the ETS, I'm still trying to decipher what the purpose of the M2.5 screw in the middle of the bulkhead is for? It looks like 3 screws per bulkhead to attach them to the chassis (but why 3?) and then 3 grubscrews per insert/hingepin (2 to hold the insert, 1 to lock the pin)?