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Author I want to talk about brake kits for a moment
mwg
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Registered: 19th Feb 04
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9th Jun 11 at 08:25   View User's Profile U2U Member Reply With Quote
If you got 17s you wouldn't need to worry about this as much
Steve
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Registered: 30th Mar 02
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9th Jun 11 at 08:25   View Garage View User's Profile U2U Member Reply With Quote
17s are too big for the car tbh i think they look silly with them, like a roller skate
IvIarkgraham
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Registered: 27th Mar 04
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9th Jun 11 at 08:26   View Garage View User's Profile U2U Member Reply With Quote
get drums all round
Dave
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9th Jun 11 at 08:31   View User's Profile U2U Member Reply With Quote
I agree, if the measurement from opposite edge to outside of caliper is 340 on a 300 disc surely this is 380 diameter set up? However if he says it fits it's his problem if it doesn't, sounds like he's not explaining the measurements clearly, 40mm seems quite a lot of projection of the edge of the disc.
Steve
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9th Jun 11 at 08:33   View Garage View User's Profile U2U Member Reply With Quote
il say again when i ring up to order them, its just so difficult explaining over the phone, best i came out with was

"surely the caliper distance needs adding on the other side aswell" which sounds rubbish
Dave
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9th Jun 11 at 09:04   View User's Profile U2U Member Reply With Quote
Tbh it's easier to explain as a radius like AK said, a better measurement would be from the centre of the disc to the extreme edge of the caliper. Double this and that's the diameter of wheel you need to clear, not taking into account any possible spoke interference which can usually be overcome with spacers.
Steve
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9th Jun 11 at 09:29   View Garage View User's Profile U2U Member Reply With Quote
only thing i can think is that the caliper doesnt protrude by 40mm and that it only does by 20mm and they are factoring in that hence the 40mm total

40mm does sound like an awful long way for a caliper to protrude away from the edge of a disc


[Edited on 09-06-2011 by Steve]
AK
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9th Jun 11 at 10:15   View User's Profile U2U Member Reply With Quote
what.... sounds plausible to me!

40mm, 4cm, just over 1 inch.

I'll get a pic
Steve
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9th Jun 11 at 10:20   View Garage View User's Profile U2U Member Reply With Quote
it could well be plausible you know more about these brake setups then me

the guy was adamant a 350mm wheel would clear them though

do rally design know what they are talking about? i know nothing about them, i would have thought so as they are the main UK dealer of brakes

[Edited on 09-06-2011 by Steve]
AK
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9th Jun 11 at 10:20   View User's Profile U2U Member Reply With Quote
8 pots (356mm disc)


2 pots (290mm disc)




[Edited on 09-06-2011 by AK]

[Edited on 09-06-2011 by AK]
Steve
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9th Jun 11 at 10:22   View Garage View User's Profile U2U Member Reply With Quote
ok m8 cool, not sure if im ever going to get to the bottom of this until i order and try them tbh
AK
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9th Jun 11 at 10:25   View User's Profile U2U Member Reply With Quote
a pic showing my shaved calipers and wheels with spacers..... eeek



some very heavy brake use too going by the dust
Steve
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9th Jun 11 at 10:25   View Garage View User's Profile U2U Member Reply With Quote
are they the 8 pots? what size wheels
AK
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9th Jun 11 at 10:27   View User's Profile U2U Member Reply With Quote
330mm x32mm discs with 8pot calipers
AK
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9th Jun 11 at 10:29   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Steve
are they the 8 pots? what size wheels


17" using 330mmx32mm discs

Its not the diameter thats the issue.

You'll get 300mm setups on a lot of 15" wheels (TD ProRace etc)
AK
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9th Jun 11 at 10:35   View User's Profile U2U Member Reply With Quote
300'ish x 28mm discs on OE nissan 4 pots



still trying to find a square on pic
Steve
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9th Jun 11 at 10:38   View Garage View User's Profile U2U Member Reply With Quote
so in your opinion you reckon they will fit, diameter wise anyway

what do you make of this 340mm measurement hes given me?

[Edited on 09-06-2011 by Steve]
AK
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9th Jun 11 at 10:38   View User's Profile U2U Member Reply With Quote
yes

those red 4 pots with 300mm discs fit behind OE nissan 16" wheels

[Edited on 09-06-2011 by AK]
Steve
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9th Jun 11 at 10:42   View Garage View User's Profile U2U Member Reply With Quote
these are 6 pots though lol, dunno how mcuh diff that makes
AK
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9th Jun 11 at 10:47   View User's Profile U2U Member Reply With Quote
hmm, we have 6 pots on the rear of the GTR now i think.... 330mm

Its scary looking at all brake setups we've had/tried.

Douby 6pots would be 'taller' than 4's as the pistons will have a smaller diameter
Steve
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9th Jun 11 at 10:53   View Garage View User's Profile U2U Member Reply With Quote
go measure them for me lol, and we'l just knock 15mm off the radius
smcGSI16V
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9th Jun 11 at 11:21   View User's Profile U2U Member Reply With Quote
My 4 pot alcons stick out 22mm from the outside of the disc, just to give you an idea.
AK
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9th Jun 11 at 11:23   View User's Profile U2U Member Reply With Quote
i'm in norway... so er, no

Steve
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9th Jun 11 at 11:26   View Garage View User's Profile U2U Member Reply With Quote
catch a helicopter man
Steve
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9th Jun 11 at 11:30   View Garage View User's Profile U2U Member Reply With Quote
finally found some definitive info



radius for a 300mm disc is 172mm = a 344 wheel needed

looks like AK was right

[Edited on 09-06-2011 by Steve]

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