Grandmaster Flatcap Posted September 20, 2015 Share Posted September 20, 2015 Does anyone know what were the lightest wheels CC have ever supplied on a 7? Link to comment Share on other sites More sharing options...
LawrenceR Posted September 20, 2015 Author Share Posted September 20, 2015 I would be guessing but Mag MB's on the original R500k Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Fit OE spec 6mm dia plug leads. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Get rid of all the beading around cockpit inner skins. Looks poor, collects grit, hard to keep clean and adds weight without function. If you reassemble the skins without the beading, the edge can be perfectly dressed down to the chassis tubes. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Shorten all the bolts to each applucation. Many have 3-4 threads poking out. Cut back to one thread exposed after the nyloc nut. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Dump all split washers and flat washers in apllications where they have no beneficial function but are liberally provided in the fixings kits. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Replace front wing fixing "glue"/sikaflex/tigerseal with 4 neat and very light nylon screws and nuts. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Dump your "7" decor grille and just run the mesh. If you are paranoid that joe public might not know your car is a 7, stencil a painted 7 on to the mesh. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 The bottom threaded pin of the front upright is about 8 threads too long. Double win - unsprung weight! Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Rear arch gravel plates.... Bin! Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Get your boot cover remade by Oxted in lightweight nylon. The original pvc leathercloth is stiff, bulky and heavy. I got mine done about 8 years ago and it is still super despite apparently being a less tough material. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Wear a Casio F-91 instead of your regular boar anchor. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Wheel centre caps/embellishers? Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Petrol filler tube fairing 'cheese wedge' - to my knowledge I have never lost anything via the small gap around the filler tub since removing it. Link to comment Share on other sites More sharing options...
6speedmanual Posted September 20, 2015 Share Posted September 20, 2015 Arch chassis: headlamp bracket pinch bolts. One is fine. Link to comment Share on other sites More sharing options...
LawrenceR Posted September 22, 2015 Author Share Posted September 22, 2015 Thanks for the suggestion 6SM. Some of these were on my list others I would have never considered. Link to comment Share on other sites More sharing options...
The_ASH Posted September 30, 2015 Share Posted September 30, 2015 Anyone tried one of these http://www.ebay.co.uk/ulk/itm/331649346118A saving in static and rotational mass, however I do seem to remember the front pulley on a K is that weight for a reason. I think it was discussed in Techtalk at some stage. Also it's £90 to save 6lb! Link to comment Share on other sites More sharing options...
SM25T Posted September 30, 2015 Share Posted September 30, 2015 Being a smaller diameter, it won't have as much rotational effect as the flywheel, but offers a reasonable weight saving .... at a cost. Link to comment Share on other sites More sharing options...
Julian H Posted September 30, 2015 Share Posted September 30, 2015 The ebay ad only refers to Lotus Elise and Exige. Will one fit a Caterham? [possibly a numpty question..?] Link to comment Share on other sites More sharing options...
SM25T Posted September 30, 2015 Share Posted September 30, 2015 Too late ..... someone bought the last one. Link to comment Share on other sites More sharing options...
Julian H Posted September 30, 2015 Share Posted September 30, 2015 Hi IanTTV might still have some if I phone. Do you know if they would fit?J Link to comment Share on other sites More sharing options...
Mankee Posted September 30, 2015 Share Posted September 30, 2015 It's the guys at TTV selling/manufacturing that pulley. It's no good if you run a Titan dry sump pump as you need the extra set of ribs for the belt. Also, have a search for the reason there is a slither of rubber between the centre of the pulley and the outer. Harmonic damper or something like that. If you don't run a belt on the smaller set of ribs, cut them off or swap to a Rover Metro-style pulley that has only one set of ribs and also runs one less rib, 4 instead of the normal 5. Link to comment Share on other sites More sharing options...
Graham Perry Posted October 2, 2015 Share Posted October 2, 2015 What about the main rear light wedge shaped blocks ? Are these still the horrible heavy rubber stuff or have Caterham finally made something lighter ? Someone on here made up some lightweight ones a few years ago for sensible money so I fitted them.I saved a small amount of weight on my crossflow by replacing the heavy steel Alternator mounting bracket and its sliding belt adjuster with aluminium ones that were home made from ali billet.I cannot remember the manufacturer but I also saved a whole kg by swapping to a lighter weight electric fan which was also usefully slightly larger as Crossflow cooling problems have been endemic over the years.I seem to recall that someone identified that you could save quite a bit of weight expensively if you have an older car by going to the later driveshafts. The early model de-dion tubes where the dampers mount through the tube were much lighter than todays one as well. I have had mine crack tested (and welded) a couple of times and re powder coated and it has been fine.Some of us changed the rear calipers from the original Ford ones to non ventilated disc VW Golf calipers (I forget which model) which looked slightly different but were fundamentally the same with the handbrake built in, but were Ali rather than iron, and they represented a decent weight saving without spending fortunes for race ones. They just needed a small spacer from what I recall, but they wouldn't work with some wheels so were not widely taken up. There is some stuff in the archive about thisFor my crossflow though, the three biggest weight savings were, an aluminium 5 speed gearbox case, an aluminium bell housing and switching to the expensive 13 inch mag MB R500 wheels which even today surprise me how light they are. Link to comment Share on other sites More sharing options...
Julian H Posted October 2, 2015 Share Posted October 2, 2015 Mankee, thanks for the info on the pulley. I wonder what it was suitable for if it does not work with dry sump and is not suited due to lack of rubber insert? Is an Elise K series different I wonder.Graham, it seems like you have been on this crusade before. The new light blocks are still horrid rubber. CF ones are no longer available from the former 3rd party sources Link to comment Share on other sites More sharing options...
LawrenceR Posted October 4, 2015 Author Share Posted October 4, 2015 I am on paternity leave at the moment so it is a bit busy in the Richards household, with a toddler and new born. That said, however, the continual weight reduction continues. Over the last few weeks I have been playing with the drivers seat to get the best comprise for aesthetics, weight loss and driving position. The priorities were in the reverse order. I have now got it just as I want and the added bonus is the seat runners are removed, and it is bolted directly on the floor with tiller spacers setting the angle. I am sitting about an inch lower and have saved 1.638 kg.Total weight saving is now aprox 8.3 kg and that does not include the +7 kg I have lost. Link to comment Share on other sites More sharing options...
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