4 Pots >>>> Standard Brakes

[fmp_]

After having a quick flick through the forums, i thought i would throw my opinion into the mix.

I recently got rid of my 182 cup, i couldnt sell it as it was so returned it to standard.

During this process i changed the brakes from our CompBrake 4 pot kit on 295mm disc, back to the standard setup.

All i can say is WOW!!!! the standard renault stoppers are pony and trap!

Alot of people on here claim that 4 pots are overkill without actually trying a set (maybe brain washed by the 'wise' words of a few individuals), but from actually changing from standard to 4pots to standard, i can confirm, in my opinion that they are the best choice you can make.

Pedal feel is far far improved, not to mention the excellent stopping power they provide, especially at high speeds. Add the complete lack of fade, even on track days.

Throw into the mix the fact they weigh far less than standard setup, discs included, which reduces unsprung weight.

And all in all you have a very good upgrade to your clio, even if it does cost a bit more than a set of fast road disks and pads.

So if anyone is thinking about it, but being put off by other people's opinion, dont be fooled, they are totally worth it!!

Cheers for reading!

carry on...

 

[PYE21]

Agree with everything!!!!

I was never happy with the standard setup, pedal always felt soft (3 different companies bled the system to try and aleviate this) and even with 'performance' pads the braking performance left alot to be desired.

I fitted a Compbrake kit, of fmp's cup, onto my 182 around 3 weeks ago, and the difference is huge. Pedal has consistancy and feel, there is always guranteed stopping power, and when really warm and pushed the ultimate braking performance is huge.

I would highly recomend!!!!!!

 

[Fred@BTM]

disagree, sorry! cup racers don't use them, why?

 

[MarkCup]

Cost perhaps Fred?

Anyone taking a 4-pot equipped Clio to an RS trackday this year I could have a go in?

 

[fmp_]

disagree, sorry! cup racers don't use them, why?

Could be any number of reasons, cost, trying to keep the cars as close to production as possible, rules, no one actualyl seems to know.

But you do honestly beleive that a Cup race car on 4 pots would not lap any quicker than one on standard brakes?

You do realise that a Cup race car is NOT the most ultimate clio ever? and could be improved on?

 

[BenR]

whats the difference in total piston area between stock and your setup?

 

[PYE21]

disagree, sorry! cup racers don't use them, why?

Regulations, same reasons they dont run 250bhp throttle bodied engines. Have you ever seen any of the Clio's 172/182 that run in the VLN series at the ring? They ALL run AP's race setup, different regulations = they fit them. Simple as that.

 

[BenR]

its a single make series, regulations dont mean anything.

They heavily modified the front subframe, the shockers have nothing to do with the stock suspension setup, the rear beam is different, the vehicle loom and ECU is complete overkill for a stock engine, so i fail to see how a set of 4 pots would be a cost factor.

They didnt need them because..............................they werent fast or heavy enough.

The ring is completely different to any circut.......you'd need 4 pots in a citroen AX.

 

[GordonD]

1. 4-pot calipers are going to feel different. They are going to reduce the line/pedal pressure required to get any given amount of retardation.

2. the previous arguments I saw were about the merits of 4-pot calipers and standard-sized disks. People were suggesting that that would give them reduced fade. It doesn't. 4-pot calipers involve different pads, and they very well could, but you don't need to go to 4-pot calipers to put in put in pads that are more-fade resistant and also improve feel.

3. you are talking about 4-pot calipers AND different pads AND significantly larger disks ... 295 mm instead of the standard 280 mm. Of course that combination reduces fade in conditions extreme enough conditions that fade occurs. The question is not whether they do, but whether conditions that extreme would ever be encountered by any more that a minuscule few of those who read this forum. Its not a racing a forum. Its a forum of enthusiastic road users of an already fairly well-engineered and well-developed road car that because of that can only be developed a relatively small amount further in power and performance.

4. readers should note that this is a product you are in the business of selling and your comments about the efficacy of the product and the value they'd receive from it should be judged accordingly.

5. the people who write the race rules and the people who race aren't idiots. The one thing they don't want more than anything else is crashes. If the cup cars were getting brake fade they'd pretty soon upgrade the brake spec for the class to whatever was required to prevent it. The fact that the rules are what they are says that's what's needed, and all that's needed, for those conditions.

6, in race conditions the brakes you need are dictated by the power of your engine. The amount of energy it puts into the car down the straight is the amount they've got to take back out at the end, and then they've got to do it again. In road conditions its dictated by the weight of the car plus load. A lap of the 'Ring is an extreme condition of a road car which is heavier than a cup car and may also be more powerful being driven under race conditions. It would require better brakes than a cup car.

 

[Fred@BTM]

cup racers didn't have them due to cost???? LOL the gearbox is £7K!

enduro racing then yes, but track day! overkill

 

[rustybolt]

i know nothing about the cup racers but im sure as fred says it wouldnt be down to cost that they wouldnt have them, itll be down to the fact that they arent needed.

Myself personally would love 4 pots as i have on many occasion experienced fade on my 172, even on Brembo discs and Greenstuff pads.

Just to know that i WILL stop at the end of a blat would be enough for me to part with the cash. The more sensible drivers should be satisfied with the standard setup as its up to the job.

jog on..

 

[RacerStu]

Do you guys have any comparisons between uprated discs and pads to 4-pots, as opposed to just between standard and 4-pots?

 

[PYE21]

its a single make series, regulations dont mean anything. QUOTE]

Of course it does, if the manufacturers are running the car's as 'production spec', which the clios are, same suspension mounting positions, same engine location and angle, sealed engine spec that is only mildly modified. The cost is regardless its the regulations/group N/production spec that dictates many of the final components. The choice to go with the sequential box could have been for many other reasons, but i would quess that the main ones were reliablity and most of all publicitie!!!!!!

 

[Pep]

how much do they improve stopping distances?

 

[PYE21]

whats the difference in total piston area between stock and your setup?

These are the calipers in the kit im using.

http://www.compbrake.co.uk/compb43.htm

And this is the kit, but im using DS2500 pads for now.

http://www.compbrake.co.uk/Renault Clio.htm

 

[Ross M]

how much do they improve stopping distances?

has any tests been carried out to prove the theory that there better ?

all fair enough on the fade part but i would like to know actual stopping distance fact ?

 

[PYE21]

I haven't done a test, but seat of the pants is good enough for me and they stop a lot shorted than standard. The brake 'dive' has to be watched in certain situations, because the rear of the car now skips around and i have had to catch it a few times after it has swung out while braking hard over a rise/through a slight bend.

 

[BenR]

its a single make series, regulations dont mean anything. QUOTE]

Of course it does, if the manufacturers are running the car's as 'production spec', which the clios are, same suspension mounting positions, same engine location and angle, sealed engine spec that is only mildly modified. The cost is regardless its the regulations/group N/production spec that dictates many of the final components. The choice to go with the sequential box could have been for many other reasons, but i would quess that the main ones were reliablity and most of all publicitie!!!!!!

Sorry, regulations, not matter what they are have absolutely nothing to do with the reason behind the brake setup. If it was needed, they would run it. The regulations just state the cars have to be the same spec, they are not the reason they run what they do. Despite looks they are far removed from porduction/grpn/production.

You seen the spec of the new leon single make series?

 

[Peperami]

If he likes them, and he thinks they stop him faster, with better pedal feel, i dont see what the problem is?

 

[BenR]

whats the difference in total piston area between stock and your setup?

These are the calipers in the kit im using.

http://www.compbrake.co.uk/compb43.htm

And this is the kit, but im using DS2500 pads for now.

http://www.compbrake.co.uk/Renault Clio.htm

Thanks but it doesnt have any info on that link, i was hoping someone running or who part developed the kit would be able to tell me the change in area since the master cylinder is the same size.

Of all the 4pot kits i've tested, the cheap calipers perform poorly, they plain dont work well, or pedal feel is compromised when running the stock master cylinder.

I've not tried the B4 kit, and i'm not argueing what is better, i was only simply talking about the cup racers use of brakes.......and tbh, i've never experienced brake fade on the clios.......only time i have is when the previous driver comprehensively fucked them because he couldnt drive for s**t, and that was the PF97's which are stonking.

 

[matty w]

it doesnt really matter does it?you could say theres no need for throttle bodies or theres no need for coilovers but people still have them fitted

 

[Fred@BTM]

These are the calipers in the kit im using.

http://www.compbrake.co.uk/compb43.htm

And this is the kit, but im using DS2500 pads for now.

http://www.compbrake.co.uk/Renault Clio.htm

Thanks but it doesnt have any info on that link, i was hoping someone running or who part developed the kit would be able to tell me the change in area since the master cylinder is the same size.

Of all the 4pot kits i've tested, the cheap calipers perform poorly, they plain dont work well, or pedal feel is compromised when running the stock master cylinder.

I've not tried the B4 kit, and i'm not argueing what is better, i was only simply talking about the cup racers use of brakes.......and tbh, i've never experienced brake fade on the clios.......only time i have is when the previous driver comprehensively f**ked them because he couldnt drive for s**t, and that was the PF97's which are stonking.

LOL!!!

 

[Peperami]

They look pretty. If someone can spend £1000's on a bodykit, a few hundred on some lush looking brakes is nothing, especially if they make you happy

No doubt they'll stop you quicker, whether or not you need it i dont know, but if they make you feel a little safer in that you can stop quicker, then money well spent.