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Alex_3589
6th November 2007, 15:51
VTR Brakes.
Not keen on paying the hefty price tag on 4 pots so will settle for a big brake conversion. found one on cituning and one on gmc.
http://www.cituning.ltd.uk/ProductDetails.aspx?pid=570
http://www.gmcmotorsport.co.uk/
are either of these kits any good?
or shall i go for black diamond stuff or tar-ox etc?
Oh also, not really interested in 206 brakes or anything.
cheers

Paul_Collins
6th November 2007, 16:00
I have GTI 180 brakes, and they 283mm and are more than enough for me, so i cant see why you would need bigger for a VTR?

Plus you can pick GTI 180's for half the price so more money to spend on something else :P

Nick_T
6th November 2007, 16:01
both kist are fine mate, bigger brakes will no doubt make your braking a lot better.(couldnt get a lot worse on a saxo really)
just the 283mm disks and calipers will not fit under vtr wheels so unless you have 15 inch wheels it would be advisable to go for 266mm disks or smaller

Alex_3589
6th November 2007, 16:07
iv got 15 inch team dynamics pro race 2's to go on so they will fit. il definatly consider both kits and maybe the gti 180 ones too. where can you pick them up from? how much? and what do you get with a kit?

Paul_Collins
6th November 2007, 16:07
yeah forgot about that, but with those kits bigger wheels will be needed

craig180
6th November 2007, 16:07
I have WP Pro 6 pots with the same 292mm discs there and the stopping power is unbelievable with Mintex pads!

Those you have listed would be a good improvement but I would personally look at spending the same on a set of used 406 Coupe Brembo 4 pots

Paul_Collins
6th November 2007, 16:08
i got Calipers, Disks, pads, goodridge hoses for £150.

Just gotta be in the right place at the right time. plus they fit straight on!!

Nick_T
6th November 2007, 16:09
i got vtr brakes lol and they are crap
better than the furio ones though!

rushy_23
6th November 2007, 21:41
The brake dust of mintex pads is unbeleiveable. Im running them on the rear
now with grooved and drilled dics. My wheels are now copper!

IMO if your after a bigger setup on 14s go for the 266mm 206 GTi kit?
15s just run 306 GTi6 ones. If your a clever mofo you could always do a Soulless
and get HDi ones that dont fit :p

bullit
6th November 2007, 21:45
just get a 180 kit. second hand will be similar price to the big brake kits and better

pike0
7th November 2007, 16:09
?where is the best place to get a 266mm brake kit from?

KamRacing
7th November 2007, 16:35
first question why you want big brakes and do some research as to how brakes work. 4 pots and big disks are really only needed for trackcars.
the co-efficient of friction is not affected by surface area so bigger calipers are not always better. Moving the caliper away from the hub will change the amount of effort you have to apply but the outcome is the same force being applied to the disk before you break the frictional forces between the tyre and road.
if you are suffering brake fade then look at a different compound before fitting heavier disks as these will ruin your handling to some extent.
4 pots are about feel and also consistancy under more extreme heat conditions. Sometimes its better to try a more basic approach.

The trick for improving braking distance is to look elsewhere. Brakes are the last thing to look at once your car is developed in other areas.

Raz
7th November 2007, 16:56
Kam - what breakes do you recommend for a VTR thats going to get used occationally for track days? 3/4 times a year?

bullit
7th November 2007, 20:14
?where is the best place to get a 266mm brake kit from?

try williams vts

bullit
7th November 2007, 20:15
Kam - what breakes do you recommend for a VTR thats going to get used occationally for track days? 3/4 times a year?

your laughing with gti brakes. on standard wheels the 266mm coversion

leeK9
7th November 2007, 20:50
http://cgi.ebay.co.uk/Saxo-VTR-VTS-Peugeot-106-Brembo-4-Pot-Caliper-Brakekit_W0QQitemZ260177454551QQihZ016QQcategoryZ2 3013QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

a find like that deserves loadsa rep imo

KamRacing
7th November 2007, 21:43
Kam - what breakes do you recommend for a VTR thats going to get used occationally for track days? 3/4 times a year?

Its not quite as simple as that lol

On a standard car under heavy braking you get significant weight transfer forward due to the movement in the suspension as it compresses. A stiffer setup car will not have as much strain on the front suspension so the brakes are not given such a workout. Get the best suspension you can afford and look at all methods of reducing this transfer such as reducing your cars weight.

What limits your grip on the road under braking and acceleration? Its the friction between the road surface and the tyre compound. As your brakes act on the disk the maximum pressure that can be exerted is determined by this frictional force. Too much pressure and the wheel locks. This point is the same whatever your brake setup until you change your tyres to something better. Fit some road legal slicks and your brakes can now apply more pressure before traction is lost under braking. When your standard setup can no longer apply the maximum pressure before the co-efficient of friction is broken then you need to upgrade.

Big brakes and uprated pads is 99% about heat though. Bigger pad areas spread the heat, bigger brakes dissipate the heat over a wider area and cool faster.
Your uprated pad is designed to cope in hotter conditions, such as when you are braking multiple times from high speed.

I feel i've rambled a little yet only touched on the subject lol but my point is that there is more to brakes than the size of the caliper. From personal experience I know that as long as heat is not an issue you should run the smallest brakes you can get away with.

Our 205 rallye had race suspension, road legal slicks and believe it or not bog standard brakes. They were pushed to their limit but stopped the car faster than any other road car it came across. In fact a friends Ibiza Cupra R on 4 pot brembos nearly drove into the back as it couldnt slow as effectively. we planned to run it on carbon brake pads to sort the heat issue but we are doubling the power so full gti suspension and brakes are being fitted (which we will trial standard brakes again)

So in this order I upgrade.

1. Remove weight
2. Fit good suspension and strengthen that chassis (strut braces/ cage etc)
3. Fit the right tyres for the job.

then evaluate the brake effectiveness on the track. Do you suffer brake fade? If so uprate the pads and test again, if brake fade is still apparent then its time to look at different options.

Hope this helps.
Kev

Predator_R32
7th November 2007, 21:48
im thinking of getting the ones on GS motorsport, hi spec ones iirc and also gonna get me some 15s

id recommend them, i emailed gaz the other day and he said he is keeping the offer to us and SSC on

also he had feedback from somebody on SSC and said they were very very happy with them :y:

if you have the cash then do it mate, the standard saxo brakes arent exactly the best :)

bullit
7th November 2007, 21:51
i have a conversion kit btw. you only need discs at 75 pound, prob less and some spacers at 40 pound. bit more you have a gti kit though

nice post kam aswell.