Front Brakes

[RichardK]

I now need to look at my front brakes. Thery need uprating considerably.

I want bigger discs ideally and 4 pot calipers.

What's the best way to achieve this?

I was looking at the brakes on a skyline today, they looked ideal. The owner suggested they may well fit.

[PukkaSilvia]

groove your front discs or buy grooved ones and mintex or porterfield pads and then bleed the brakes right though with some decent brake fluid, and get some nice sticky rubber on those wheels and they will be the bollocks. I can lock mine in the dry at 100 ish with toyo tyres. I find my brakes to be prefectly adaquate for a 'fast road setup'

there are other options, use the forum search option

[RichardK]

Definitely want to go for 4 pots. Bigger discs would be good too...

Are S14 and Skyline calipers the same?

[30psi]

Locking brqkes up at 100mph is achievable with any brakes. What you want is a set of brakes that can slow you down from 100 in control without losing efficiency ie brake fade.

Try braking from 100mph down to 30, then try it again and you will notice on the 2nd or 3rd attempt they'll fade.

Even if you have really good pads the 22mm discs will heat up real fast, and brake fade is inevitable.

The 4pots will help with the heat issues but at the end of the day the disc will be the first to cop out.

Oh and the skyline discs won't fit.

[RichardK]

Thanks for that Martin.

So what options do I have as far as upgrading the discs?

I'm now thinking S14a calipers. So need to work out the disc side of it now.

[30psi]

Skyline calipers are for bigger discs, so the offset will be wrong. These discs will work nicely with them though:

http://www.datsport.com/R32Z_CO_DS.html

That is the only true upgrade.

S14/Z32 calipers are designed for 280mm discs so bolt on with no issues. You dont actually need spacers for the thinner discs either.

Other than that, you could go for custom bells/discs that are available for the S13 but the offset of the bell might be wrong, so some measurements of the disc offset will need to be made. You never know, they may be the same.

[RichardK]

Ok so if I go for a direct replacement of calipers with the S14 ones, which discs would you recommend?

Are standard S12 discs 280mm?

Who sells uprated 280mm discs?

[30psi]

S12 discs are 274mm IIRC.

You cant really upgrade to anything which fits the S12 hub. The only way is to use say the Apex 310mm S13 kit and hope the offset is correct

[RichardK]

So just put the S14 calipers on a good set of standard size discs?

[30psi]

Thats better than nothing but the standard sized discs are still thin.