brake upgrade

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gibson9
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Post Fri Nov 16, 2012 2:43 pm

going to be doing an engine swap once brakes/suspension are sorted.got the trailing arms etc for rear disc swap,is it worth upgrading to a 325 brake setup?or is there better aftermarket kits for the money?
jmc330i
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Post Fri Nov 16, 2012 2:59 pm

Take it you've got 316i/318i non vented discs at the moment?

The 325i front discs are the same size as what you have, but they are vented to help keep the brakes cooler. They won't increase the braking over what you have now, just stop the brakes cooking themselves whilst trying to stop the extra weight of the 6 cyl lump.

If you're fitting a 6 cyl lump, the least you should do is fit the vented discs as well. A decent standard sized disc (260mm) and pad setup, with some braided hoses and decent fluid will give a perfectly good brake setup for road use.

If the car is to be used on track etc, maybe the likes of the WMS 280mm 4 pot kit would be more suitable, but budget around £500 for that.
James
'91 325i Sport
'93 318i touring 16v
Motorhole
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Post Fri Nov 16, 2012 4:02 pm

jmc330i wrote:Take it you've got 316i/318i non vented discs at the moment?

The 325i front discs are the same size as what you have, but they are vented to help keep the brakes cooler. They won't increase the braking over what you have now, just stop the brakes cooking themselves whilst trying to stop the extra weight of the 6 cyl lump.

If you're fitting a 6 cyl lump, the least you should do is fit the vented discs as well. A decent standard sized disc (260mm) and pad setup, with some braided hoses and decent fluid will give a perfectly good brake setup for road use.

If the car is to be used on track etc, maybe the likes of the WMS 280mm 4 pot kit would be more suitable, but budget around £500 for that.
If you fit vented discs, you will also need calipers designed for vented discs as they are wider than the ones for solid discs.
Duke137
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Post Fri Nov 16, 2012 4:05 pm

All comes down to money
How do you pronounce 'either'? I say 'either', but some say 'either'. Either is correct.
maf260
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Post Fri Nov 16, 2012 4:09 pm

jmc330i
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Post Fri Nov 16, 2012 4:30 pm

Motorhole wrote:
If you fit vented discs, you will also need calipers designed for vented discs as they are wider than the ones for solid discs.
The OP said about fitting the 325i brake setup, so I figured he would know this, but yes you're right I should of said discs and calipers.
James
'91 325i Sport
'93 318i touring 16v