4-pots
#1
Posted 05 April 2006 - 08:18 AM
is this true?
#2
Posted 05 April 2006 - 08:28 AM
is this true?
In a word no!
I had four pots on my last one and they were fine - definately didn't just lock the wheels up. If anything they were more progresive than the standard ones.
#3
Posted 05 April 2006 - 08:29 AM
#4
Posted 05 April 2006 - 08:30 AM
#5
Posted 05 April 2006 - 08:52 AM
according to a university freind of mine (vehicle adavanced engineering thingy) he says that 4-pots on a mini are too much, and i will just lock the wheels up all the time with standard brake contoller thingys( not a brake expart i am)
is this true?
Male Chicken
#6
Posted 05 April 2006 - 09:18 AM
4-pots are used all the time to a good degree of success. If you were fitting massive 4-pots off something like (for example) a Jaguar or something (which wouldn't even fit under the wheels, but anyway) then to a certain extent he is correct. You basically have to ensure that your master cylinder will push enough fluid to activate the 4 brake pistons correctly (laymans terms).
An example of this is some people putting 306 GTi-6 calipers onto Pug 205's, they have to change the master cylinder too.
In reality, the Metro is a similar car to the mini, so the conversion works well. The braking force is all about the equation F= PxA force (or Force = Pressure x Area) in my opinion. So if you are putting the same amount of pressure over more area (which having the 4 pots does, I think) you will have more force on the back of the brake pad, pushing it harder onto the disk. There are other advantages too, one of them being that you can use vented discs with the 4 pots, which will allow the discs to cool better under harder braking.
Disclaimer: All of that may be rubbish lol
#7
Posted 05 April 2006 - 09:56 AM
#8
Posted 05 April 2006 - 11:25 AM
#9
Posted 05 April 2006 - 12:21 PM
according to a university freind of mine (vehicle adavanced engineering thingy) he says that 4-pots on a mini are too much, and i will just lock the wheels up all the time with standard brake contoller thingys( not a brake expart i am)
is this true?
Male Chicken
Rooster?
#10
Posted 05 April 2006 - 01:41 PM
So from that respect they will fit fine and the pedal pressure to pad pressure ratio will remain the same.
I have done this conversion myself in the past, thinking it was a good idea, but it's a waste of time to be honest.
You will not see better braking performance (I cabn gaurentee it), all you end up with is a heavier calliper and extended pad life owing to their larger size.
Wil
#11
Posted 05 April 2006 - 01:49 PM
#12
Posted 05 April 2006 - 01:53 PM
#13
Posted 05 April 2006 - 05:17 PM
#14
Posted 05 April 2006 - 05:27 PM
If you work out the surface area of the metro 4-pots compared to the standard mini 2-pots you will find that it is pretty much the same.
That's the thing I wasn't sure about to be honest. I didn;t have one to hand to measure. Sooo, I guess the real advantage to fitting the 4-pot setup is the fact that you can use vented 'rotors'.
I do have a set of 4-pots somewhere in the garage (admittedly they are rather past it and need a good sorting out) but I am considering either leaving the standard 2-pot mini calipers on, or fitting uprated 4-pots (minispares ones etc).
#15
Posted 05 April 2006 - 05:46 PM
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users