Disc Thickness

#1 Hedgehog

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Posted 01 August 2008 - 03:09 PM

I am thinking of getting my FRP front discs skimmed, what is the minimum disc thickness?

#2 eldoodarino

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Posted 01 August 2008 - 03:52 PM

it's always been known as 26mm on the forums.... but actually on the discs is written 25mm....

what are they at the moment..?

Chris

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#3 Hedgehog

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Posted 01 August 2008 - 05:23 PM

QUOTE (eldoodarino @ Aug 1 2008, 04:52 PM) <{POST_SNAPBACK}>

it's always been known as 26mm on the forums.... but actually on the discs is written 25mm....

what are they at the moment..?

Chris

Thanks Chris I will let you know when I have measured them.

Cheers Paul B

#4 shinigami

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Posted 01 August 2008 - 05:35 PM

I think mine have probably been less than 26mm for a good while, they have a giant lip on them as well but that'll soon be remedied with new discs

FRP = Weeeeeeeeeeeeeeeeeee!!

Owner of FRP #444

#5 Spike

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Posted 01 August 2008 - 09:58 PM

think i measured my old ones at about 23 or 24

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#6 shinigami

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Posted 01 August 2008 - 10:00 PM

Don't laugh at me but if your thickness goes too low, can the pistons pop out?
I'm going to look stupid now as there's bound to be some reason why that can't happen.

This post has been edited by shinigami: 01 August 2008 - 10:00 PM

FRP = Weeeeeeeeeeeeeeeeeee!!

Owner of FRP #444

#7 eldoodarino

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Posted 02 August 2008 - 12:50 AM

I have seen some that looked as tho they were just about to pop...on 23mm discs and knackered pads...

but actually there was still a bit to go....

it's hard to let the discs go any lower than 26 usually as problems with hum etc etc usually dictate that they need changing beforehand...

Chris

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#8 Hedgehog

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Posted 02 August 2008 - 03:53 PM

I have just measured them 23mm so i will be getting new discs!

thanks for the help.

Paul B

#9 Big Boy Al

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Posted 02 August 2008 - 04:03 PM

blimey you definately got some use out of them

FRP 241 RINGMEISTER -23 LAPS = 296.7 MILES COMPLETED, MORE TO COME NEXT YEAR

#10 eldoodarino

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Posted 02 August 2008 - 04:09 PM

That is VERY low.... my guess is that the pistons will probably be so contaminated too that they will be well past their best ....

eek!...

This post has been edited by eldoodarino: 02 August 2008 - 04:36 PM

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#11 Hedgehog

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Posted 02 August 2008 - 06:32 PM

QUOTE (eldoodarino @ Aug 2 2008, 04:09 PM) <{POST_SNAPBACK}>

That is VERY low.... my guess is that the pistons will probably be so contaminated too that they will be well past their best ....

eek!...

Pumaspeed advertise An original FORD DISC machined to fit the FRP, do you know anyone who has tried these?
also where is the best place to buy a new set of pistons? do the seals come with them?

#12 Big Boy Al

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Posted 02 August 2008 - 07:01 PM

you can buy the pistons from Pumabuild or pumaspeed, both of them as im aware are not the orginal alcon pistons but there own pistons they have had made up or so i have heard.

you can still get the original pistons from ford but they are not cheap about £40 each for the 38mm piston and about £48 for the 41mm pistons and then the piston seal kit is about another £60 which does all 8 pistons.

finis codes from ford are

seal kit = 9098446
38mm piston = 9098447
41mm piston = 9098448

eldoodarino may have some good quality spares if not i think he still has a batch of his excellent stainless steel ones for sale

This post has been edited by Big Boy Al: 02 August 2008 - 07:02 PM

FRP 241 RINGMEISTER -23 LAPS = 296.7 MILES COMPLETED, MORE TO COME NEXT YEAR

#13 eldoodarino

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Posted 02 August 2008 - 08:49 PM

just used my last set... should have more in the next couple of weeks....

also, i'd stick to discs that are a PROPER FIT... ie not needing spacers, washers, steel plates etc etc etc...to make them fit...

thats all i'm saying..

I'm needing some discs myself actually... maybe we could do a 'deal' with hi-spec for their nice bell and rotor setup...

Chris

more info on my pistons here.. http://www.pumapeople.com/forum/index.php?showtopic=73740

This post has been edited by eldoodarino: 02 August 2008 - 08:51 PM

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#14 Hedgehog

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Posted 02 August 2008 - 08:59 PM

QUOTE (eldoodarino @ Aug 2 2008, 08:49 PM) <{POST_SNAPBACK}>

thats all i'm saying..

I'm needing some discs myself actually... maybe we could do a 'deal' with hi-spec for their nice bell and rotor setup...

Chris

more info on my pistons here.. http://www.pumapeople.com/forum/index.php?showtopic=73740

Pistons look smart, What are Red Dot discs like? i have just found this parts list http://www.topgear.co.uk/Reddotapp.xls

Or do i go for Hi-spec!

Thanks Chris

#15 eldoodarino

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Posted 02 August 2008 - 09:06 PM

there isn't a red dot that fits properly... so i'd say buy the proper Alcon discs which are a very sturdy bit of kit or if you really fancy somthing different you could give the Hi-Spec ones ago..