Cyclone roll center.

[Trund]

Can anyone explain how adding or removing shims on the upper links will change the car? For example i started with 2.5 on the front and 1.5 on the rear, i changed the front to 1.5 later and the car felt better.
Is there a general rule of thumb, say if the car is over steering you take some off?

Any advice would be a big help!:D

[Mark Stiles]

Lowering the inner ball stud increases the angle of the camber link relative to the lower wishbone. This should give this end of the car a bit more grip mid-corner, as the angled link will give more camber change through the suspension travel, and also lower the roll centre.

There isnt really a rule of thumb with it (in my opinion), but its another one of the dozens of setup options available on the car! Mine is set at 1.5mm rear and 2.5mm front, and its something I rarely change to be honest. If I do it +/- 1mm maximum.

I think that's right... usually I just run with what I've got and ask Andy for advice! :D

[nismo]

I run a tamiya so i cant give you a good setting point.

But if you reduce at one end (less shims under the camber link) you will gain grip at that end of the car.

so by doing what you mentioned you would have gained some steering on your car but because its not affecting your (camber or toe or width) it won't feel 'twitchy'

[Trund]

Im thinking of trying the andy moore carpet wars setup, on the sheet from hb europe it says olly ran 1mm roll centres and 60w oil, anyone got any ideas how this will change the car? also is the 1mm roll centres under the bulk heads or the upper liks? Thanks!

[mr4man]

have you got a standard or WCE edition cyclone terry, as the shock towers are different.
Where do you race not WKRCC by a chance?
I have been running that setup at Carpet Wars and RR with superb results.

its 1mm under the wishbone blocks and the thicker oil stop the car reacting so quick.
Ive been running 45wt all round with 1.2mm pistons, pink front blue rear springs.
I run a spool and have added 1mm under the front inner camber link to raise to 4mm and this seems to calm down the front end.
The 1.5deg pivot block on the front makes the most difference TBH.
I love this car

[Trund]

have you got a standard or WCE edition cyclone terry, as the shock towers are different.
Where do you race not WKRCC by a chance?
I have been running that setup at Carpet Wars and RR with superb results.

its 1mm under the wishbone blocks and the thicker oil stop the car reacting so quick.
Ive been running 45wt all round with 1.2mm pistons, pink front blue rear springs.
I run a spool and have added 1mm under the front inner camber link to raise to 4mm and this seems to calm down the front end.
The 1.5deg pivot block on the front makes the most difference TBH.
I love this car

I have the wce car, yeah im doing the wkrcc winter series. My current setup has been good, but seems to understeer mid corner, so i wanted try a different one. Im running 50w oil with three hole pistons, 1.5 front and 3 degree toe blocks, spool, 1.5 under all wishbone blocks, 1.4 front roll bar and 1.2 rear. 2.5 upper front link and 1.5 rear. pink and silver springs.

[mr4man]

Hi i work @ the LHS in Maidstone pop up and have a chat.
Raising the rear link will give make the rear rotate better and give more steering mid corner.
are you running outer hole on front wishbones, and middle hole rear?
it could be the car is pushing due to too much steering lock.

[Trund]

Hi i work @ the LHS in Maidstone pop up and have a chat.
Raising the rear link will give make the rear rotate better and give more steering mid corner.
are you running outer hole on front wishbones, and middle hole rear?
it could be the car is pushing due to too much steering lock.

Hi, Yeah im running the outer hole on the front and middle rear, i will give it a go aswell as lowering the front ball stud. Whats the LHS in Maidstone, im in Eastbourne so quite far away. Thanks.

[stueyR]

Im thinking of trying the andy moore carpet wars setup, on the sheet from hb europe it says olly ran 1mm roll centres and 60w oil, anyone got any ideas how this will change the car? also is the 1mm roll centres under the bulk heads or the upper liks? Thanks!

hey terry under the bulkhaeds it was basicly olly was allowing the chassis to roll more on its axis but used a stiffer oil to compsate the roll you may find this was done purly for driving style. also dont forget andy ran the hpi pro 4 shocks that day which i think you use anyway. the setup works pretty well.

[stueyR]

Hi i work @ the LHS in Maidstone pop up and have a chat.
Raising the rear link will give make the rear rotate better and give more steering mid corner.
are you running outer hole on front wishbones, and middle hole rear?
it could be the car is pushing due to too much steering lock.

hey rich

raising the rear link will make the car difficult to drive and on edge terry only has a problem mid corner i would start looking at the shocks maybe give the car a little more droop all round so the car can roll a little more you could also soften the front springs lay the front shocks down a hole or half to keep the front of the car genarating some front traction.

[stueyR]

terry

i will be at wkrcc on the 6th if i get book in on reserve list at the moment im dying to give you guys a run running lipos and brushless againts my nihms and brushed motors the corally is pretty handy on carpet be very affraid. he he

[Trund]

terry

i will be at wkrcc on the 6th if i get book in on reserve list at the moment im dying to give you guys a run running lipos and brushless againts my nihms and brushed motors the corally is pretty handy on carpet be very affraid. he he

Hi stu, im not using the pc shocks now as i got a new car. Im still using nimh too, they seem to have a little more punch at the start than lipo's. You'd better hope for a tight track then mate, the 10.5 has a lot more power:).
Thanks mate.

[stueyR]

we shall see bud see ya soon

[Trund]

Bring it on lol.

[TryHard]

Lowering the inner ball stud increases the angle of the camber link relative to the lower wishbone. This should give this end of the car a bit more grip mid-corner, as the angled link will give more camber change through the suspension travel, and also lower the roll centre.

There isnt really a rule of thumb with it (in my opinion), but its another one of the dozens of setup options available on the car! Mine is set at 1.5mm rear and 2.5mm front, and its something I rarely change to be honest. If I do it +/- 1mm maximum.

I think that's right... usually I just run with what I've got and ask Andy for advice! :D

Actually Marks got that slightly wrong... lowering the inner ballstud actually raises the roll centre, not lower it. Lowering the outer ballstud lowers the RC, and them same happens with respect to shims under toe blocks (more shims = higher RC).

In going from 2.5 to 1.5 under the front link, you've raised your front RC a bit (probably by ~0.8mm), meaning the front end will react a bit sharper, as the car behaves a like it's stiffer. The increase in front end camber gain will make up for any lose in grip due to the higher RC, hence why it probably feels better. :)

HiH
Ed