CC01 Flex issue?

[BruiseWayn]

Hi guys. So i inherited a built box stock CC01, which i been told only ran once, and i have another CC01 BNIB (Because it a pajero, and i am a sucker for mitsubishis. Oh, also it only cost what, 81 pounds? ) 

now i have a question. i have an ocd towards symmetry, and the fact that the rear axle has the diff towards 1 side irks the badword out of me. 

I want to know of anyone has had their CC01 "twist" under acceleration. Is it the position of the rear diff; having 1 short and 1 long dog bone, or totally something else? 

Because thats what my friend's fully loaded CC01 does. He has a brushless setup, articulating suspension mounts, big and long shocks, and that the suspension just twist to 1 side when the thing moves off. I simply can't stand it. Wish i have pics but i didnt take any. 

That's also partly why i have yet to build mine; i don't want to build a car like that. 

[TWINSET]

The twist is a downfall of shaft-drive trucks - it's the chassis being rotated around the driveshaft under acceleration.

It can be tuned out to a degree, but usually at the expense of either articulation or symmetry of the suspension action.

A lot of modern rigs (GMade GS02 BOM, Traxxas TRX 4 etc.) deal with this by having the front and rear driveshafts rotating in opposing directions so the twist from one shaft is countered by the other.
Unfortunately, I don't know of any aftermarket solutiuons for the CC01 as far as driveline goes, but you might be able to find anti-roll bars (sway bars)

 

GMade's solution;

 

As for your OCD regarding the offset axle; do the rear upper shock mounts set it off too? (one faces forward, the other.... doesn't)

 

[BruiseWayn]

9 hours ago, TWINSET said:

As for your OCD regarding the offset axle; do the rear upper shock mounts set it off too? (one faces forward, the other.... doesn't)

Now that u mention it, i think it does. I only had a brief look @ it, in the car park. So the rear upper shock mounts make it worse?

 

[TWINSET]

4 hours ago, BruiseWayn said:

 So the rear upper shock mounts make it worse?

Only from an OCD point of view - the holes are in the same place but the moulded part is rotated on opposing sides of the chassis.
Torque twist is usually most noticeable under hard acceleration or when the tyres grip or jam on terrain whislt crawling - normal bimbling about with a stock or crawlng motor shouldn't show it so much.

You can reduce it with harder springs on the rear corner which dips, but that will also then affect the suspension compressing on that corner too.
 

[markbt73]

Whatever you do, then, don't look under the back of a 1:1 pickup truck, then. Most of them have one shock in front of the axle and one behind, to help counteract this twist. Visual symmetry isn't always the best thing for performance.

As for the diff being offset, again, it's not uncommon in the full-size world. Nearly all Jeeps, Blazers, Broncos, and other 4x4s with solid axles have the diff "pumpkin" offset to one side to help clear the oil pan and steering gear, and I believe a lot of old Land Rovers/Range Rovers have an offset rear diff as well.

[BruiseWayn]

6 hours ago, TWINSET said:

Only from an OCD point of view - the holes are in the same place but the moulded part is rotated on opposing sides of the chassis.
Torque twist is usually most noticeable under hard acceleration or when the tyres grip or jam on terrain whislt crawling - normal bimbling about with a stock or crawlng motor shouldn't show it so much.

You can reduce it with harder springs on the rear corner which dips, but that will also then affect the suspension compressing on that corner too.
 

Ah!!! its abit hazy, but i think i kindda get an idea of what ur saying. Many thanks

[BruiseWayn]

1 hour ago, markbt73 said:

Whatever you do, then, don't look under the back of a 1:1 pickup truck, then. Most of them have one shock in front of the axle and one behind, to help counteract this twist. Visual symmetry isn't always the best thing for performance.

As for the diff being offset, again, it's not uncommon in the full-size world. Nearly all Jeeps, Blazers, Broncos, and other 4x4s with solid axles have the diff "pumpkin" offset to one side to help clear the oil pan and steering gear, and I believe a lot of old Land Rovers/Range Rovers have an offset rear diff as well.

i used to get upset as a kid, when i see car exhaust mufflers on 1 side of the car. I outgrew that phase in the 90s when i thought that big fat mufflers poking out of 1 side @ an angle on japanese cars were really cool. 

But yes i agree. Visual symmetry isnt always the best thing for performance. 

[markbt73]

9 minutes ago, BruiseWayn said:

i used to get upset as a kid, when i see car exhaust mufflers on 1 side of the car. I outgrew that phase in the 90s when i thought that big fat mufflers poking out of 1 side @ an angle on japanese cars were really cool. 

But yes i agree. Visual symmetry isnt always the best thing for performance. 

The ones that always used to annoy me were the BMWs with exhaust pipes juuuust slightly off-center.

[BruiseWayn]

35 minutes ago, markbt73 said:

The ones that always used to annoy me were the BMWs with exhaust pipes juuuust slightly off-center.

DUDE I KNOW RIGHT?! LOLOLOLOL Those pesky BMW E28 5 series. Don't you just want to strangle the guy that designed these.

On a more serious note, i have now grown to appreciate them. These cars were simpler, more robust and built like tanks back in the 80s. 

M5... simply glorious.