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2-pot, 4-pot, 6-pot calipers
https://www.ausmini.com/forums/viewtopic.php?f=5&t=53393		 Page 1 of 2
Author:  Bubbacluby [ Tue May 19, 2009 8:31 pm ]
Post subject:  2-pot, 4-pot, 6-pot calipers
Can somebody please explain to me the benefit of 6-pots over 4 and over 2.

Because you can only slow a disc down at a certain amount before it locks up and skids and 2 pot calipers can do it, so why buy a set of 6-pot tarox??

I understand that they probably generate less heat under racing conditions because of more surface area. is there any benefit in stopping though?

Im curious as i have been tossing the idea of buying some tarox when i go to england "because i can" but dont understand the benefit or if there is any.

same deal with 8.4's compared to 7.5's on 12" wheels.

Somebody please explain to me why 6 pots are better than 2
Author:  Mini Mad [ Tue May 19, 2009 8:49 pm ]
Post subject: 
I have the Tarox 6-Pots and they are awesome, i followed the development and bought the first kit they sold.

Pros:
Disc Size 235mm (9.25in)
Vented Rotors.
Weight 950g - Alloy Caliper and Hubs on Rotor vs Metro 4-Pots
O-Ring Seals to Prevent dust, dirt etc into the pistons vs KAD 6 Pot setup.

Benefit of extra pistons (from Tarox Website):
1. Pressure is more evenly distributed across the pads.
2. Better cooling action of the pads, because of more airflow behind the pad's metal support.
3. Less stress factors on the caliper itself.
4. More responsive brake pedal.

Do you need them on a mini? probably not, but my case is a little different to most with the conversion side but a highly modded 1275 could make use of them.

Only downside is the need for 13" rims.
Author:  SuperCooper [ Tue May 19, 2009 9:03 pm ]
Post subject:  1 Pot Fiesta brakes!
Check out these for something different!

http://www.youtube.com/watch?v=1fbBWdSDT7E[url][/url]
Author:  TheMiniMan [ Tue May 19, 2009 9:21 pm ]
Post subject: 
The main reason originally was to creat the effective frictional area (or working area) on the disc "Further outward" on the disc,,, basically making it (or tricking it into feeling like) a larger disc rotor

the more pistons there are then "Usually" the smaller they are so the centre of each small piston is effecting it`s work on a larger diam of the disc

with only 2 big pistons then the centre of them is effective on a small diameter position on the rotor , in keeping those big pistons within the outer diam of the rotor of course

sorry, but if you can get the jist of what i`m trying to say there then you`re better than me :-)

soooo a set of tiny little 8pot calipers woud be even better & with longer surface area for the pad to work on really helps too
Author:  drmini in aust [ Tue May 19, 2009 10:17 pm ]
Post subject: 
Having more than one piston on the pad helps prevent pad tilt where the top of the pad wears into the rotor faster than the bottom does.
On 6 piston calipers the top piston is usually smaller than the middle, and the bottom one biggest..
Author:  TheMiniMan [ Tue May 19, 2009 10:22 pm ]
Post subject: 
that too :-)
Author:  meeni [ Tue May 19, 2009 10:23 pm ]
Post subject: 
http://www.strathycruise.com/newproduct ... rods_8.jpg

why have 6 when you can have 12 :lol: they are for porsche cayennes etc i think
Author:  Mini Mad [ Tue May 19, 2009 10:32 pm ]
Post subject: 
Why have 12 when you can have 16?

Image
Author:  TheMiniMan [ Tue May 19, 2009 10:35 pm ]
Post subject: 
any advance on 16??? ,,, going once,,, going twice,,, :-)
Author:  Mick [ Tue May 19, 2009 10:35 pm ]
Post subject: 
meeni wrote:
http://www.strathycruise.com/newproducts/scnewprods_8.jpg

why have 6 when you can have 12 :lol: they are for porsche cayennes etc i think


It's a little like back in the 80's when the toyota engines jumped over 16 valves and went to 20....Eventually someone sat down and did the figures and worked out it just wasn't worth all the work that had gone into them....apart from marketting appeal...
Author:  Austin850 [ Tue May 19, 2009 11:04 pm ]
Post subject: 
Yep that would fill a 10-inch wheel

Image
Author:  drmini in aust [ Wed May 20, 2009 8:02 am ]
Post subject: 
The rotors there would want to be ventilated, as hardly any air can get to the outside... :lol:
Author:  jasonf [ Wed May 20, 2009 9:41 am ]
Post subject: 
drmini in aust wrote:
The rotors there would want to be ventilated, as hardly any air can get to the outside... :lol:


I dont think there would be enough time to get hot enough....you would stop too fast :lol:
Author:  Austin850 [ Wed May 20, 2009 9:54 am ]
Post subject: 
Those brakes are on a Volvo. They don't actually need to use them anyway. They use motorbikes as speed humps! :)
Author:  Bubbacluby [ Wed May 20, 2009 10:09 am ]
Post subject: 
Thanks for the explanations, so in conclusion i gather

More pots dont actually make you stop better, in that 2pots can do just as good a job as 6pots. The major benfit is that they are more reliable and efficient.

Is that correct

(Matt i think i inderstand what you are saying, but dont get the the benefit of it except to generate less heat, Ohh is it that moving it outward the disc is spinning quicker so stopping it there will work better?)
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