4 Pots fitted......

[PYE21]

I got these on friday off FMP. Really nice piece of kit, and deffinately worth the money!!!!!

Fitted them today. All went well until it came to bleeding them, loads of issues with trapped air in the calipers, and one of the bleed nipples snapped off :angry:

Started the day as this.

First side on.

And fully finished.

So in the last 2 weeks thats new suspension (H&R coilovers) and brakes sorted, end of the month im changing the wheels to 15's (in white!!!!) and will probably order a bucket seat at the same time :thumb:

 

[Peperami]

Lush

Any pics of the whole car mate?

 

[Nebdingo]

ahhhh, behold the "endow" 'ing Clio!!

 

[PYE21]

Not since i fitted the H&R's and brakes heres the last one's when it was on eibach pro's.

 

[Christopher]

nice!

 

[Leeshez]

Shweet

 

[LegoHead]

Now get some wider tyres.

 

[makavelli]

will the 15's fit with the four pots?

they look mint by the way

 

[Peperami]

will the 15's fit with the four pots?

they look mint by the way

Should do, as fmp had these under his 15" th3's

 

[The Hoff]

Question is though, and not to offend you. But why the hell is there a need for 4-pot brakes on a car weighing little over a ton?

Standard calipers are more than sufficient with some HC discs, and decent pads.

Maybe I missed something?

 

[makavelli]

will the 15's fit with the four pots?

they look mint by the way

Should do, as fmp had these under his 15" th3's

oh rite cool

 

[Peperami]

Hoff - you can get 4 pots on a mountain bike. Mountain bikes weigh 10 kgs.

 

[The Hoff]

Hoff - you can get 4 pots on a mountain bike. Mountain bikes weigh 10 kgs.

When you have a rider that weighs 100kg sat on it that changes significantly, also check out the size of the calipers. Oh and show me a MTB that weighs 10kg and i'll show you my bare arse.

I'm just wondering why someone would see that they need 4-pot for road use when the OE setup is pretty s**t hot anyway that's all.

Looks like lovely kit and all btw

 

[Peperami]

So 100kg + 10kg is, erm, still not quite a ton mate.

(My last bike was 19lbs, pics of your ass to my hotmail addy please)

 

[blue nose]

very nice matey

 

[dazc]

When you have a rider that weighs 100kg sat on it that changes significantly, also check out the size of the calipers. Oh and show me a MTB that weighs 10kg and i'll show you my bare arse.



http://weightweenies.starbike.com/articles.php?category=htbikes

But keep it to yourself my friend.

Daz

 

[The Hoff]

So 100kg + 10kg is, erm, still not quite a ton mate.

(My last bike was 19lbs, pics of your ass to my hotmail addy please)

So discs and calipers you get on an MTB are the same size as the Clio then? Completely different stopping power for completely different use.

Bare arse for show, PM me email addys for pics

 

[Peperami]

When you have a rider that weighs 100kg sat on it that changes significantly, also check out the size of the calipers. Oh and show me a MTB that weighs 10kg and i'll show you my bare arse.



http://weightweenies.starbike.com/articles.php?category=htbikes

But keep it to yourself my friend.

Daz

Ha ha ha. Nice

What do you ride daz?

Hoff - Echo es4r. Had a 22lb trek slr, and currently on a 24lb spesh m4 (10.9kg's, lol) so 10kgs is more than doable.

 

[Pep]

So 100kg + 10kg is, erm, still not quite a ton mate.

(My last bike was 19lbs, pics of your ass to my hotmail addy please)

get your rat out!!!

 

[haitch]

sure the rs in standard form doesnt need them, but if you can why not, nice kit.

 

[jon_r]

Question is though, and not to offend you. But why the hell is there a need for 4-pot brakes on a car weighing little over a ton?

Standard calipers are more than sufficient with some HC discs, and decent pads.

Maybe I missed something?

This car from memory is used on track a bit? And the standard Sport brakes are next to useless In my experience.

 

[The Hoff]

Hm maybe on standard pads/discs, but im sure that decent pads and some Brembo HC/Max are more than sufficient for most applications.

Just wondered why the extra stopping power is needed, in a car like the Clio the stopping power limitations is the tyre i'd have thought.

 

[dazc]

Ha ha ha. Nice

What do you ride daz?

Hoff - Echo es4r. Had a 22lb trek slr, and currently on a 24lb spesh m4 (10.9kg's, lol) so 10kgs is more than doable.[/quote]



Currently riding a Carbon Scott Genius Rc10, a Genius Mc50 with ritchey carbon bits but mostly into roadbikes these days.

Have 2 Scott CR1's the lightest being 15.3lb or just under 7kg, the other being my winter trainer LOL.

They climb like a pair of scalded monkeys.

Daz

 

[walkie86]

brakes look hot mate... not too sure bout the black wheels though

white will be better!

 

[GordonD]

A question.

If you just put them on the front, and they actually work better than the standard calipers - ie, more retardation for the same pressure because they've got two sets of pistons applying twice the pressure to the pads - doesn't that wreck the front-rear brake balance and cause the fronts to be doing all the work instead of it being spread around all four disks?

And if you've put them all round how do you do the handbrake?

 

[jon_r]

Hm maybe on standard pads/discs, but im sure that decent pads and some Brembo HC/Max are more than sufficient for most applications.

For most yes, but not all. They will still fade.

 

[PYE21]

Hm maybe on standard pads/discs, but im sure that decent pads and some Brembo HC/Max are more than sufficient for most applications.

Just wondered why the extra stopping power is needed, in a car like the Clio the stopping power limitations is the tyre i'd have thought.

I have been using a uprated setup for 12 months, they are still not good enough. They fade and i have never had 'confidance' in the pedal. I have done 40 laps of the ring on ds2500 and goodridge hoses etc and the fade after one lap wasn't nice at all (i like to do 2 laps at once and it just isn't possible in the dry). This setup, along with my brake ducts and the heatshielding i have done should help improve the brakes emensly.

The rear brakes don't need to be adjusted at all. These are just on the front and have been m,atched to the master cylinder to ensure that the pedal effort isn't too much. The rear brakes don't do a great deal anyway, and with around 60% of the weight over the front when static (more when braking) the better/bigger brakes on the front make much more sense.

 

[Englebert]

I think it is remarkable that people write off 4 pots without clearly trying a car with them on, how can you be the judge of it?

I think the standard brakes are terrible, i've never felt comfortable with them. I would have bought the same kit, if it wasn't for the lack of dust seals.

 

[Tom]

You can kill fade with PF97's and HC brembos/braided Lines.

But the sheer amount of dust is incredible.

Nice kit, big buggers arent they!

 

[PYE21]

I didn't want to try the the PF97's. I know that they would probably have been an improvement over the ds2500, but i just wasn't prepared to put up with the dust destroying paint and wheels etc.

 

[Tom]

Yup. Understandable.

 

[Fred@BTM]

for the 100th time PF's do not destroy paint!!!

 

[Tom]

for the 100th time PF's do not destroy paint!!!

Ok. But they do. My wheels need a refurb and my cars paint is bad.

It can be sorted out i imagine but the PF's/Brake disc dust caused it.

 

[PYE21]

for the 100th time PF's do not destroy paint!!!

I wasn't prepared to take the risk, i have heard it off at least 3 people who have had to have there wheels refurbed and the paintwork down the doors etc has gone very dull.

 

[sh33n]

Look the part anyway

 

[Neil G]

Hoff - you can get 4 pots on a mountain bike. Mountain bikes weigh 10 kgs.

You can get six pots on MTBs.....f**king overkill if you ask me.

Those 4 pots look great by the way.....bet they stop well too

 

[GordonD]

If anyone's fitting 4-pot calipers for looks, well, fair enough.

If you're fitting them thinking they work better, that you somehow get better braking and/or better fade resistance you really need to ask someone other than the salesman who is selling them to you.

Its a matter of piston area. The more the piston area the more force is applied to the pad for a given amount of brake line pressure. This is why performance bikes fit 4 and 6 piston calipers, because they don't have power assistance, so the amount of braking you get is limited by the strength of your hands, so their benefit is increased piston area. Race cars fit them for a quite different reason. You have really sticky tyres and wings pushing them down on the road to have huge grip on the road and huge braking potential so you want a lot of pad area to get enough friction. To do that with a single pair of pistons they'd have to be huge, so you use multiple pairs of pistons to create a caliper that's compact enough to fit inside the wheel.

Its not the 4-pot caliper that improves fade resistance. Its the size of the disk. The mass and its ability to pump air through it to get rid of heat. A 4-pot caliper is longer and thinner so lets you fit a bigger diameter disk inside any given size wheel. So if we're talking about a road car, ie, road tyres and no downforce and power assistance, and isn't running a bigger disk its really hard to see the point. In that circumstance a 4-pot caliper doesn't have any benefit over a 2-pot caliper.

Plus if you only fit them to the front it creates the problem of affecting brake balance that isn't easy to correct on a road car. It means all your braking is done by the front brakes instead of being spreading around the four disks. And if you fit 4-pot calipers to the rear you have the problem of how you do a handbrake.

 

[Fred@BTM]

yeah PF's knacker the wheels up, but they DO NOT knacker the paint!

 

[Mike_182]

yeah PF's knacker the wheels up, but they DO NOT knacker the paint!

Just keep on top of cleaning the thing...!

 

[PYE21]

If anyone's fitting 4-pot calipers for looks, well, fair enough.

If you're fitting them thinking they work better, that you somehow get better braking and/or better fade resistance you really need to ask someone other than the salesman who is selling them to you.

Its a matter of piston area. The more the piston area the more force is applied to the pad for a given amount of brake line pressure. This is why performance bikes fit 4 and 6 piston calipers, because they don't have power assistance, so the amount of braking you get is limited by the strength of your hands, so their benefit is increased piston area. Race cars fit them for a quite different reason. You have really sticky tyres so you want a lot of pad area to get enough friction to use all the grip you've got on the road. To do that with a single pair of pistons they'd have to be huge, so you use multiple pairs of pistons to create a caliper that's compact so you can fit as big a disk as possible.

Its not the 4-pot caliper that improves fade resistance. Its the size of the disk. The mass and its ability to pump air through it to get rid of heat. A 4-pot caliper is longer and thinner so lets you fit a bigger diameter disk inside any given size wheel. So if the road car has power assistance and isn't running a bigger disk its really hard to see the point.

Your also not considering that a cast iron caliper flex's, and the act of oposing the pistons creats a much more positive and even pressure on each side of the disc. The aluminium bell and caliper also helps to disepate the heat much more efficiantly.