MTC3
#976
Tech Addict
Joined: Jan 2003
Posts: 569
From: Montréal, Qc
A few weeks ago, Coelho posted regarding uses more or less rear castor. Last week at our club race I played with it on my car e.g increasing rear castor and felt it improved the car’s rotation, on a layout that had continuous direction change. It’s definitely something to test out
Martin Paradis
#977
R/C Tech Elite Member
iTrader: (8)
Joined: Aug 2008
Posts: 1,179
From: CT
Looking at your setup, you run 5 degree caster in the rear? Also, you run bypass shocks in the rear. What made you go in that direction? We usually see it in the front only. The hub thing is quite intriguing, definitely something to try. How did you set up the caster with the hub upside down? Set it up with the hub the normal way and then flipping it?
Martin Paradis
Martin Paradis
I remove the 1mm shim ... slide the Caster plate on and tighten upper link down.
I learned a lot last summer about using rear caster for rotation.
5 has been the sweet spot for me on high grip black carpet.
If Im a little loose on a new lay out or lower bite I can pull it back to 3.5/4* and settle it down.
To be honest I never tried the bypass on just the front. I took a shot at the wall of ideas.
My theory ... as pressure is applied to the tire, traction increases.
So mid corner to exit when Im throttling up Im not really applying as much pressure. But on exit I might gain forward grip.
And on entry the shock would extend quicker giving me better entry.
Really just outside of the box thinking that works for me.
A few of the other locals asked me the same question but after trying they felt it made their rear feel stable and gained forward grip.
#979
Been running the car for the past few months on high bite black carpet.
Still testing and trying different things but so far this has been my fastest setup.
I did mod the rear hubs by flipping them upside down.
I have 2 identical setups on both cars - one normal rear hubs and one flipped.
Flipping them gave me the same rotational feel I always felt on Mi9's
Picked up 2tenths on my average and the rear is very stable.
Need a 12mm countersunk screw for the hub side and a 8mm grub screw loctite into the steering arm.
Flip them and use the same shims - I started with 2.5mm shims on the steering knuckle.
Still testing and trying different things but so far this has been my fastest setup.
I did mod the rear hubs by flipping them upside down.
I have 2 identical setups on both cars - one normal rear hubs and one flipped.
Flipping them gave me the same rotational feel I always felt on Mi9's
Picked up 2tenths on my average and the rear is very stable.
Need a 12mm countersunk screw for the hub side and a 8mm grub screw loctite into the steering arm.
Flip them and use the same shims - I started with 2.5mm shims on the steering knuckle.
do you have a picture of the real hubs flipped upside now
#980
Tech Rookie
Joined: Feb 2023
Posts: 4
I need some help. I am trying to understand the point of the pin that supports the movement of the shock tower to the bulkhead. There is a screw and based on instructions it looks like I am suppose to screw it so the shock tower doesn't move. What is the point of the pin to allow for movement? There is also a reference for 'setup' is the screw used for another purpose? To limit the travel to the shock tower to the bulk head? Also 2x6 seems short to secure the shock tower to bulkhead. Any help would be helpful.
I am referring to page 5 of the manual. Part A2556R (shock tower) to A2171A (Bulkhead) with SiG2x6 screw.
My account is too new to attached photos or share public hosting links.. Thank you.
I am referring to page 5 of the manual. Part A2556R (shock tower) to A2171A (Bulkhead) with SiG2x6 screw.
My account is too new to attached photos or share public hosting links.. Thank you.
Last edited by WashedUp; 05-10-2026 at 09:06 AM.
#981
Joined: Dec 2004
Posts: 2,856
From: Marietta, Ga
#982
Tech Initiate
Joined: Mar 2026
Posts: 37
Hello, has anyone got any advice on organizing and hiding wires? In particular the motor sensor cable and the ESC BEC cable?
my sensor cable is long-ish but wondering what to do with it, and the ESC cable, is this going under the ESC and then under the motor?
my sensor cable is long-ish but wondering what to do with it, and the ESC cable, is this going under the ESC and then under the motor?
#984
Tech Adept
Joined: Oct 2017
Posts: 219
From: Harrisburg

Regarding sensor cable, is separate the wires and twist it.
#985
Tech Initiate
Joined: Mar 2026
Posts: 37
Thanks for showing. So I twisted it like that too, have you stuck it down to the chassis with tape or it’s just free flowing? I guess I’m curious if it’s close to touching the belts?
and with the ESC cable, lots of people say go under the ESC and then through or against the motor mount, but there doesn’t seem enough room to me.
cheers
and with the ESC cable, lots of people say go under the ESC and then through or against the motor mount, but there doesn’t seem enough room to me.
cheers
#986
Tech Adept
Joined: Oct 2017
Posts: 219
From: Harrisburg
I don't tape down the sensor cable. My sensor cable loops one time to take up slack. Physics seems to keep it in place. If you look at that motor mount on the motor side, and just below the lower motor screw holes, you'll see that the mount has a cutout where your ESC wire can flow through under the motor. All assembled, your ESC wire should move somewhat freely through that groove in the motor mount. It shouldn't be pinched.
#987
Tech Initiate
Joined: Mar 2026
Posts: 37
I don't tape down the sensor cable. My sensor cable loops one time to take up slack. Physics seems to keep it in place. If you look at that motor mount on the motor side, and just below the lower motor screw holes, you'll see that the mount has a cutout where your ESC wire can flow through under the motor. All assembled, your ESC wire should move somewhat freely through that groove in the motor mount. It shouldn't be pinched.
#988
Tech Initiate
Joined: Mar 2026
Posts: 37
I don't tape down the sensor cable. My sensor cable loops one time to take up slack. Physics seems to keep it in place. If you look at that motor mount on the motor side, and just below the lower motor screw holes, you'll see that the mount has a cutout where your ESC wire can flow through under the motor. All assembled, your ESC wire should move somewhat freely through that groove in the motor mount. It shouldn't be pinched.



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