RiF Posted September 9, 2009 Share Posted September 9, 2009 I wonder if anyone has their calipers off their cars at the moment. I could do with the weights of the standard front caliper (2 pot, not upgraded version) and The uprated AP 4 pot caliper. Many thanks in advance  RiF Building a real super SUPER 7 with a V6 😬 😬 😬.For Build Pictures and LOTS of Carbon or try CA07BON for Henrietta's 7 Link to comment Share on other sites More sharing options...
Area Representative bluenose Posted September 9, 2009 Area Representative Share Posted September 9, 2009 Richard I do remember weighing my Hispec Ultralite 4s and they were 0.9KG each and I worked out that the overall weight saving was 4KG for both sides so I think each standard M16 caliper is about 2.9KG each. I can check tonight, as I have photos of me weighing them- sad I know Not sure how much the AP ones weigh. Nick Lava Orange Caterham Blackbird  Link to comment Share on other sites More sharing options...
peterg Posted September 9, 2009 Share Posted September 9, 2009 Some info I found via the Fluke Motorsport website here that might be of help  Select 'Braking' under components and then it will list all the stuff they have (calipers and discs etc etc) Edited by - peterg on 9 Sep 2009 12:02:07 Link to comment Share on other sites More sharing options...
ECR Posted September 9, 2009 Share Posted September 9, 2009 I have this: 4 pot AP calliper weighs 1800gms (this is the early 4 pot design) 4 pot mintex pads weigh 500gms 2 pot iron girling original calliper weighs 3200gms 2 pot pads and pins etc weigh 370gms 2 pot disk weighs 2.5kilo - 9.125" dia Ex Chairman Roger Edited by - ECR on 9 Sep 2009 12:05:43 Link to comment Share on other sites More sharing options...
Area Representative Richard Price Posted September 9, 2009 Area Representative Share Posted September 9, 2009 I can confirm that standard front calipers (without pads) weigh 3.2Kg. Edited by - Richard Price on 9 Sep 2009 12:05:16 Link to comment Share on other sites More sharing options...
RiF Posted September 9, 2009 Author Share Posted September 9, 2009 A double "Wow"  Firstly for the speed of the replies and confirmations, thank you and secondly for the fact of how heavy the calipers are. As some of you know we are taking on the sale of brake parts for Caterhams from a well known company and although I knew there were some weight savings I never realised how much  It is also good news for my new build, where I will be using much bigger discs and calipers and thought this was increasing the overal weight, it is not 😬 Thanks again for your help  RiF Building a real super SUPER 7 with a V6 😬 😬 😬.For Build Pictures and LOTS of Carbon or try CA07BON for Henrietta's 7 Link to comment Share on other sites More sharing options...
Jason Plato Posted September 9, 2009 Share Posted September 9, 2009 you using bells from Performance braking rather than solid vented disks ? here is my Duratec R .... C7 TOP Taffia joint AO with Al Link to comment Share on other sites More sharing options...
RiF Posted September 9, 2009 Author Share Posted September 9, 2009 Dave, Seperate bells and rotors. Saves a fair amount compared to the solid cast all in one version. There are some pics in the parts section of my build site www.lu07tus.com. Done this for the front 275mm ventilated discs and the rear 260mm ventilated ones. Now I am not increasing the weight with the brakes the only thing I have to worry about is the uprated driveshafts, due any day 😬 Hope they are not too heavy  RiF Building a real super SUPER 7 with a V6 😬 😬 😬.For Build Pictures and LOTS of Carbon or try CA07BON for Henrietta's 7 Link to comment Share on other sites More sharing options...
Jason Plato Posted September 9, 2009 Share Posted September 9, 2009  gun drill the driveshafts ? ala' Dave Edmunds mods  here is my Duratec R .... C7 TOP Taffia joint AO with Al Link to comment Share on other sites More sharing options...
Area Representative bluenose Posted September 9, 2009 Area Representative Share Posted September 9, 2009 Standard M16 caliper 3.5KG with pads Hispec Ultralite 4 1.3KG with pads     Lava Orange Caterham Blackbird   Edited by - bluenose on 9 Sep 2009 18:02:58 Link to comment Share on other sites More sharing options...
OliverSedlacek Posted September 10, 2009 Share Posted September 10, 2009 I weighed the standard calipers at 3.5kg each with pads. I replaced them with Wilwood Billet Dynalites at 1.65kg each with pads. Link to comment Share on other sites More sharing options...
RiF Posted September 10, 2009 Author Share Posted September 10, 2009 Thank you for the additional replies, that's great to have complete confirmation.  I forgot to ask but, out of interest, does anybody know the weight of the original Caterham rear calipers? Might as well get all my facts together. Thanks again for all your help.  RiF Building a real super SUPER 7 with a V6 😬 😬 😬.For Build Pictures and LOTS of Carbon or try CA07BON for Henrietta's 7 Link to comment Share on other sites More sharing options...
peterg Posted September 10, 2009 Share Posted September 10, 2009 Richard, from the Fluke link I posted earlier:- 😬 Caterham rear caliper (standard) 3.11 kg  Caterham rear disc & hub 4.59 kg   Link to comment Share on other sites More sharing options...
RiF Posted September 10, 2009 Author Share Posted September 10, 2009 Woops, Peter, looked at it yesterday and then in all the excitement forgot Thanks again   RiF Building a real super SUPER 7 with a V6 😬 😬 😬.For Build Pictures and LOTS of Carbon or try CA07BON for Henrietta's 7 Link to comment Share on other sites More sharing options...
captain chaos Posted September 10, 2009 Share Posted September 10, 2009 Well thats made me think... I have the AP uprated calipers for the front of my car and it never occured to me that i could save so much unsprung weight just by swopping the calipers  However, I would be interested to hear from anyone who has gone from the AP uprated calipers to something lighter and could give an honest appraisal of the performance. My AP's are great at stopping (fitted with either Ferodo Ds3000 or PF pads) but saving that weight and maintaining excellent braking performance would be highly desirable 🥰 Link to comment Share on other sites More sharing options...
RiF Posted September 11, 2009 Author Share Posted September 11, 2009 It really is an amazing weight saving 😬 I though carbon saved weight but this option is cheaper and better Oh should not be saying that 😳 Would be interested in anyone who has swapped from AP too. I understand this to be the case: There is an AP 4-pot caliper with 253mm ventilated disc offered by Caterham as an upgrade. This upgrade does not maximise the use of the pad to disc and is heavier than the UL4 equivalent. The UL4 caliper offers a pad with 48mm by 76mm while the AP4 caliper is only 38mm by 60mm. From this you can see there is a significant amount more pad contact with the disc.  If so then there should be noticable improvement.    RiF Building a real super SUPER 7 with a V6 😬 😬 😬.http://www.lu07tus.com">For Build Pictures and LOTS of Carbon</a> <span style=' color:red or try henrietta red--> Edited by - RiF on 11 Sep 2009 16:07:00 Link to comment Share on other sites More sharing options...
Mickrick Posted September 13, 2009 Share Posted September 13, 2009 Hello Richard I've sent you mail regarding these stoppers. To your Carbonbits/easyclad address, so I expect you see it on Monday. Link to comment Share on other sites More sharing options...
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