micksymonds
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| posted on 14/9/16 at 04:51 PM |
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Lightweight Discs
As a follow-on from my earlier posts regarding upgrading my brakes on Sierra uprights and rear sierra drum to disc conversion... I just got
confirmation from RD that the discs that come with the Wilwood Front brake kit
http://www.rallydesign.co.uk/product_info.php?products_id=10508 weigh an
astonishing 4.7kg, thats not even a 0.5 kg saving on the stock Sierra vented discs.
Does anyone know of any alternatives that would offer a greater weight saving without having to sell a kidney?
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bi22le
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| posted on 14/9/16 at 05:29 PM |
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I cant help with the brake disc weight issue but I would like to state that the Mintex 1144 pads a mega cheap on that page from RD.
I have been paying twice that for Mintex 1144. Im going to buy them from there from now on!!
Track days ARE the best thing since sliced bread, until I get a supercharger that is!
Please read my ring story:
http://www.locostbuilders.co.uk/forum/13/viewthread.php?tid=139152&page=1
Me doing a sub 56sec lap around Brands Indy. I need a geo set up! http://www.youtube.com/watch?v=EHksfvIGB3I
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mark chandler
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| posted on 14/9/16 at 05:44 PM |
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No need for vented discs, you are stopping a car 1/3 the weight so a large saving here in unsprung.
Yiu can get the rears skimmed to minimum thickness.
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micksymonds
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| posted on 14/9/16 at 05:52 PM |
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I'm not going for vented discs, the ones in the kit are solids but represent less than 500g saving over the standard Sierra vented discs that i
am planning to replace.
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sdh2903
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| posted on 14/9/16 at 06:14 PM |
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Problem is the solids are thicker than the single side of a vented if that makes sense. Only way your going to get much lighter is by going to 2 piece
discs with alloy bells but won't be cheap.
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micksymonds
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| posted on 14/9/16 at 07:11 PM |
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Any recommendations as to where to try for 2 piece bells and rotors?
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gallons perminute
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| posted on 14/9/16 at 07:23 PM |
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Have a look at 205 rear discs.
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sdh2903
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| posted on 14/9/16 at 07:31 PM |
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Not hi spec!
Have a chat with rallydesign as they do various 2 piece discs and are always helpful. You'll have to see if the weight loss vs cost is worth it
though as they aren't especially cheap.
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CosKev3
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| posted on 15/9/16 at 08:14 AM |
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http://www.premiermotorsportdevelopments.co.uk/sierra-solid-ultralight-brake-discs---35kg-saving-195-p.asp
Some lightweight discs on that site
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adithorp
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| posted on 15/9/16 at 09:18 AM |
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0.5kg might not sound much but it's something like 7-8% reduction and as it's both un-suspended and rotating weight that's a
worthwhile saving. That said I might try a set of the ones linked to above next time I change pads.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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