190 brakes V's standard cdt

[GordyB]

Hi, I'm sure the info I need is in here somewhere but for quickness....

..can someone please explain the differences between the standard brakes on a MK1 115 CDT and the "bigger" 190 brakes. I don't know if it's bigger discs, whether it's different pads or just the caliper brackets different to space them out a little, whether the calipers themselves are different - you get the gist.

Also, looking at pagid pad prices on ECP, I put my reg number in and it gives me 2 options with different sized pads and says to check which ones I need before ordering??

And lastly, who made the original pads when it left the factory? Are they still available?

Any help will be great

Thanks

[LotusLC]

You will need calipers, carriers and pads and discs, 190 discs are 325mm as opposed to 284mm as standard.

I have both my cars done with this conversion , and you do getting better stopping power....

[trikey]

Get mtec grooved 190 spec ones, feels like an anchor has been thrown out of the boot!!

[LotusLC]

If you hold on till the National you can see what mine looks like as i have drilled and grooved mtec disc's on our Kermit and the fishing truck has standard 190 disc's, you can try both out if you want to see the difference..

[klarzy]

Can vouch for 190 drilled and slotted with green stuff pads.... Brilliant...

[klarzy]

You will need 18 inch wheels or 17 inch starspokes as well.... I would use a piston refurb set and braided hoses too....

[clf]

Originally Posted by klarzy

physics and geometry may disagree...

a larger friction surface, acting on a larger diameter disc will have a proportionally bigger rotational resistance...

slots, holes or hooks help dissipate gasses that build up between the pad and the disc which helps to keep more of the brake surface in contact again increasing brake efficiency.

Larger pots in the callipers means greater surface pressure, braided hoses balloon less and transmit more of the brake force to the piston, a larger master increases fluid transfer to the callipers and a larger servo means that fluid is at a higher pressure...

all in all the change from standards to the above setup on my zt diesel auto was enormous...

I am thinking along the same lines.

I also make the assumption road cars' brakes are designed to work better when cold,or cooler than a race/track car. track / race car would need them to work whilst warm/hot. So heat dissipation should not really be an issue. Extra frictional area will always show some sort of improvement (noticeable or not)

In saying that and agreeing with klarzy, in real terms, if driving sensibly to the conditions, with a maintained car, the standard set up should be fine. However, if there is extra available, it cannot do harm to have it either Lol. That is of course on the proviso that the pad can be pressed firmly and evenly as before.

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