Fitting a Roll Centre and Bump Steer Correction Kit with ACS Motorsport

[@nathanlee2660]

Thanks guys, I learnt plenty and great to see the install as well!

[@TrackItYT]

Cheers matey! Glad it was useful. The weather was a bit different then to the heat now!

[@marcelzenmedia]

Did I miss it or was there never a video following up on the difference with or without kit to see the difference on body roll?

[@TrackItYT]

Marc Elzen - VRL Performance no specific follow up video but the brands hatch video immediately after this one has it in use. The silver car in the video also has the kit. Yep definite reduction in roll but primarily due to the spring rates being unchanged. It did make the tail end a little happy so a stiffer rear ARB was required.

[@mas921]

Great explanation man!

[@Needforspeed84]

Fantastic video!

[@TrackItYT]

Thanks Stevo :)

[@jemmett50]

Would this rid my 172 of bump steer? It's on cooksport springs and te tracking is spot on... No wear on any suspension components.. Tanks

[@TrackItYT]

It certainly should do. I recall this was designed for cars which have a similar drop to cooksport springs but do be aware these kits tend to make the rear end very lively in the wet so I wouldn't recommend for a road car.

[@onneb007]

Any problems with the set so far? Cheers Btw love your content!

[@Tguedes98]

Hi dude! I'd like tocknow where did you buy this bump steer and roll center kit? Was it at acs motorsport? Do they still exist? I'd very much like to purchase one for my 306! But it's bee proving veru difficult to find anyone that still makes it! Would love to chat a bit! Much love from Portugal

[@TrackItYT]

Yeah it was ACS but they don’t exist anymore. There is a firm called pro-am racing which make them but only for the mk2 clio.

[@LeoZanardi]

For last, were the top mounts + strut brace a big improvement? Thanks! Wish you the best

[@TrackItYT]

I fitted these a while ago but from what I remember they reduced the slack feel in the front end. For me it was just another mod to increase steering precision. I would say it’s a track car modification and wouldn’t be good on a road car due to the solid nature of the mounts and poor corrosion protection on the parts.

[@Sparkplugsteve]

great video. i wish i could edit my videos like you have.

[@TrackItYT]

Thanks Steve, you don’t! It takes far too many late nights 💤 really enjoyed the tyre softener vid, particular the ARB drilling tip, had never seen that done before.

[@Sparkplugsteve]

Thank you very much. Look forward to your future vids. The overlay of the roll centre was very impressive.

[@wattahouz100]

Nice video. Does it make the front of the car higher?

[@TrackItYT]

Thanks! No it doesn’t because the hub remains in the same space, it’s only the wishbone and track rod which are lowered back into their position. The wishbone is lowered a touch closer to the road but very little.

[@wattahouz100]

@@TrackItYT Oh oh I follow what you are saying. Thanks.

[@LeoZanardi]

Also, what do you think about the pure Motorsport/whiteline rear antiroll bar?

[@TrackItYT]

The Anti-Roll bar I’ve got was part of a limited run with 5 or 7 adjustment points (I forget). It was sold by balance motorsport a number of years ago.It makes a noticeable difference and stiffens up the rear end considerably.

[@LeoZanardi]

TrackIt for last, i have the Option of taking the 19mm or 22mm. It’s a 1.6 16v non-RS clio, since we don’t have them in Brazil. What would you recommend? Thanks

[@TrackItYT]

I have never tried the PMS rear roll bar but 19mm should be better for a road car and 22mm for a stiffer track car :)

[@LeoZanardi]

Hi! Nice video! How were the results on Track? Cheers from Brazil

[@TrackItYT]

Hi Leonardo, I haven’t really driven the car much since fitting it but signs are it makes the front end much more precise when cornering. The back end has been a bit light and twitchy but the car needs to have a full geometry set up as my rear beam is quite off!

[@LeoZanardi]

TrackIt thank you for answering all my questions! Cheers, wish you the best!

[@alexrenault3620]

Coool content Dont u have to use laguna hub?

[@TrackItYT]

Thanks Alex, not with this kit. The Laguna hubs were used only on the factory cup racer variants but this kit is designed to work with standard hubs.

[@alexrenault3620]

@@TrackItYT niceone Im looking into how to buy one. Im gonna message them on fb. How much are the kits normally mate? Love the clio content...... Keep it coming 😊

[@harmol75]

Direct link to where i can buy this please??

[@TrackItYT]

Hi, I don't think ACS are making them at the moment but they do occasionally come up on cliosport.net and Facebook: ClioSport Owners Club

[@richardwallinger1683]

accepted technology HAS moved on Move with it .good luck .

[@TrackItYT]

I’m not here to battle dude, just to share a bit of joy about cars and hopefully be educational along the way so thank you. It hugely improved turn in and restores it to unlowered factory feel. A little too much oversteer in the wet for me so I run standard bottom ball joints with a larger rear ARB now.

[@richardwallinger1683]

@@TrackItYT Oversteer in the wet. a blade rear anti roll bar would allow you to soften the rear end . what roll axis are you running . It sounds like your nervous / loose rear end could be a roll axis issue . Old school seat of pants will point you / your driver in the right direction . Your observations back up a lower front roll center which would lead to a roll oversteer issue . Good luck keep up the excellent fabrication and support for your chosen sport .

[@AwdSeth_]

So this adds a tad bit more camber?

[@TrackItYT]

A smidge due to the ball joint being mildly extended over standard. Perfect for a track car.

[@reallyhappenings5597]

But why is CG not also lower on a lowered car?

[@TrackItYT]

By lowering the car you haven’t moved the weight further down in the shell so the CG stays the same. The point in the car which the weight acts from in relation to the roll centre is unchanged. Hope that helps :)

[@raceface3441]

How do you find the AP coilovers bud?

[@TrackItYT]

Bit soft for my driving style but I’m aiming for absolute perfection. They’ve served me very well for over 2 years and are actually made by KW. With that said I’m changing to ASTs this weekend!

[@jin5632]

But that adjustable tie rods end is not available for every car.

[@TrackItYT]

Indeed they aren’t but other similar solutions are available. These parts are custom machined for the Clio.

[@MRMAN-wb1tv]

On a 2nd Gen gs300 there's 15mm 22mm 30mm thick vertical plate that goes between the balljoint and knuckle to correct roll center after lowering the car.

[@peternofx]

Hi, will this rollcentre correction kit fit a Clio williams?

[@TrackItYT]

Honestly I’m not sure but I know it does fit a mk1 with 172 front running gear. Best to contact Ant at ACS. His details are in the video description.

[@peternofx]

TrackIt thanks, i will contact Anthony...

[@peternofx]

It's Dutch but here you can see that the original part numbers are the same. So I think it will fit..... www.autopartsonline.nl/p/renault/clio/clio-ii-bb012_-cb012_/2-0-16v-sport-19813/fuseekogel-220230

[@TheAussiefrog]

Where can I get this from mate?

[@TrackItYT]

From company called ACS motorsport, I’ve popped the link to their Facebook page in the description. It’s a very high quality bit of kit!

[@alexrenault3620]

How much is the kit

[@TrackItYT]

It was about £500 but they aren’t available any more. They fetch about the same when one rarely comes up for sale.

[@alexrenault3620]

@@TrackItYT f*ck that lol Pms one is 250 amd doesnt snap

[@pballer2005]

damn i wish it was that simple on my mustang

[@TrackItYT]

Double wishbone set up???

[@pballer2005]

TrackIt well that and the modular lower control arm like that. Our lower ball joints are pressed and you need a hydronic press to get them in/out

[@salvadorverduzco7631]

👍MEXICO"

[@zendigital]

I'm sorry but if there is anything that watching Swiss hillclimb racing has taught me, is that there is no technology on this entire planet that will prevent a Renault Clio from hitting the wall. They must be magnetic or some shit.

[@TrackItYT]

This will make you turn into the wall faster though! Exactly what all clio owners have hunger for.

[@jeancharlesrabaux5658]

Please sir just the cars is collector yeeer the gt turbo 💸💷 big moneys the futur cars is moneys moneys ok one swap ok mais garde le motors d origine pour la remettre stoc the jour ho is for sale tomorrow the cars is one collector in swap escuse mie yes hoo yeee motors megane rs 1 RS 2 RS 3 turbo one big bomb the cars yeee mais un cars swaper ce vend difficilement sauf si tu lui remonte just motors Renault SPORT . Renault SPORT is the M the bmw ok thancs boys bye eux sir sorie

[@richardwallinger1683]

disgusting con .. the leverage on the various parts is something someone has overlooked . I would never bother to drive that potential killing machine . I bet the insurance companies would throw a dizzy fit if they saw the cobbled up lash up you guys are up to .

[@TrackItYT]

Richard Wallinger what a strange, naive and unjustified comment. This has been designed by qualified motorsport engineers from world leading automotive engineering universities, been computer modelled to ensure stress remains transmitted in the correct plane and assembled with aerospace grade metals. I assure you these kits are not anything you’ve described and run in many different race series, on the Nurburgring and at some of the worlds harshest tracks.

[@richardwallinger1683]

@@TrackItYT good luck . more ways than one to achieve a result .. the poor steering arm with all of that twisting moment on it .. there are cowboys in all trades .Shame really. 75 year old 1980 donnington gt championship outright winner . own fabricated ground effects aerodynamics Porpoising sorted . without computers and wind tunnels ., which BMW, Bratenstein copied. on their M3 venturi cars. which Alan Jones drove . 12 lap races and once almost lapped the whole field of 30 plus strong racers . well made goodies.. Amazing how the CG failed to come down when the car was lowered . Just a thought .. chill out guys . Just observations on your add on.kit.

[@TrackItYT]

Richard Wallinger technology has moved on a long way since then and modem modelling proves your intentionally inflammatory points are wrong 😂