uzthedentist Posted June 17, 2007 Share Posted June 17, 2007 Thought id set up a thread for all those people whom are stripping their supes for track/drag/drift or even street. In this thread you can put what modifications you have done what lighter batteries etc and what you think of the mods. Hopefully mine wont be the only post lol ill start, stripping mine for street and track, so still has to be drivable Removal of rear seat (2 piece) Removal of rear seatbelts Removal of front seatbelts and replacement with harnesses (minimal weight reduction) Removal of spare wheel Removal of jack Removal of rear styrofoam and tool kit Replacement of both cats with aftermaret downpipe Replacement of stock exhaust with HKS Hiper Muffler (SS) Replacement of steering wheels with 320mm aftermarket wheel (minimal weight saving) Removal of rear subwoofer Removal of Factory amp and ancillaries Replacement of stock seats with fibreglass BRIDE bucket seats Removal of under radiator cover Removal of Glovebox and replacement with Carbon plate Replacement of standard aluminium bonnet with CF Abflug bonnet Removal of Air conditioning pum and ancillaries Anyone using a lightweight battery? whats the best one to use in your experience? Quote Link to comment Share on other sites More sharing options...
Rayman Posted June 17, 2007 Share Posted June 17, 2007 I havnt done any lightening as such but i cant tell how much difference it makes when you remove the spare wheel, it makes a big difference i think, also little things that you wouldnt think made much of a difference like a different exhaust, i think its important to take note of the weight of these items before purchase, ive just had a HKS carbon fitted. Sounds light huh but no i dont think its as light as my old Trust exhaust and makes a difference to the supra performance, particularly off the line. Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 18, 2007 Share Posted June 18, 2007 Hi UZ, thought I'd add my steps taken so far.... Done : Removal of rear seat (2 piece) Removal of rear seatbelts Removal of front seatbelts and replacement with harnesses (minimal weight reduction) Removal of spare wheel Removal of jack Removal of rear styrofoam and tool kit Replacement of both cats with aftermaret downpipe Replacement of stock exhaust with HKS Super Dragger ( heavy - titanum full system would be better ) Removal of rear subwoofer Replacement of standard aluminium bonnet with CF Abflug bonnet Removal of Factory amp and ancillaries Single conversion ( but added FMIC/oil cooler ) Fluidine Rad ( possibly lighter ) KAD brake conversion all round - considerable saving over UK brakes Removal of Front active spoiler ( with motors etc ) Removal of Charcoal canister Removal of full stereo system Removal of all interior trim ( except dash ) Removal of carpet and mats Empty washer bottle Going to do shortly... Rear wiper Ariel Replacement of steering wheels with 320mm aftermarket wheel ? Replacement of OEM Recaro seats with fibreglass Race seat .. and they're not for sale Considering ... Dry battery placed in passenger side seat location ( or there abouts ) - Chris has recommended Red Top 40 or 30 which are 12.5/9.0 kg Not Considered ... Removal of under radiator cover - 'cos I don't know what this is! Removal of Glovebox and replacement with Carbon plate Removal of Air conditioning pump and ancillaries - 'cos I like air-con As its not going to be a trailer queen, I'll be keeping the 'safety aspects' of the car. I'll update this as I go along, as I've got some testing to do at Brands Hatch next week.... BTW - anyone know what the minimum fuel tank level is for track use before starvation occurs? Quote Link to comment Share on other sites More sharing options...
couv3z Posted June 19, 2007 Share Posted June 19, 2007 http://suprahardtopregistry.com/ have a look here, the second link on the left will give you two some other idea of weight removal Quote Link to comment Share on other sites More sharing options...
bolarbag Posted June 19, 2007 Share Posted June 19, 2007 The Braille battery comes in at 5.5kg, recommended if you dont have ice, the aluminium front chasis collision bar is a couple of kg as well as the dreaded charcoal canister, clear up all the wiring too I have also removed rear windscreen wiper and aerial Rear speakers Probably subsided with the weight of water meth injection and nos though I have taken the 5l washer fluid bottle to behind passenger seat, you want all uneccessary stuff either binned or between the wheels Quote Link to comment Share on other sites More sharing options...
bolarbag Posted June 19, 2007 Share Posted June 19, 2007 Just checked your garage, if you have big wheels I wouldnt bother! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 19, 2007 Share Posted June 19, 2007 I have had Supras in here with at least 2 different carbon fibre bonnets and both were considerably heavier than the stock one! Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 19, 2007 Share Posted June 19, 2007 I have had Supras in here with at least 2 different carbon fibre bonnets and both were considerably heavier than the stock one! Yep - I reckon mines the same weight, but I went for it because of the vents to get rid of heat build up. Quote Link to comment Share on other sites More sharing options...
grahamc Posted June 19, 2007 Share Posted June 19, 2007 Have a look at this: http://www.mkivsupra.net/vbb/showthread.php?t=106834&highlight=weight Here is what I have done: Rear seat removed (2 pieces) Rear seat belts Load of plastic bits Space saver and all tools All speakers Front seats replaced by fibreglass sparco seats I have kept the front seat belts as I cant be bothered driving everywhere with a harness on Considering: Door cards (might be going, I have carbon door cards) Moving the battery to the rear or behind the front seats Carpet Unsprung weight is also important: Wheels (volk 18") - significantly lighter than stock 17s Coilovers Brake calipers and discs Quote Link to comment Share on other sites More sharing options...
Mad Cas Posted June 19, 2007 Share Posted June 19, 2007 Can't believe no-one has mentioned the 15-20 kilos of tar sound deadening thats stuck to the floor under the carpets. When I do mine I'll try and get some example weights. My mk2 supra weighed in at 1200kg dead on, from about 1315kg, after I removed all the interior trim (except the main dash, doorcards and front seats which were still stock) engine damper and ALL the A/C system removed (including the evaporator under the dash), all the tar sound deadening, all the stereo, amp and all speakers, charcoal canister. Could have got lighter, had I replaced the seats with buckets, polycarb'd the windows, removed the bumper support bars, etc etc. Quote Link to comment Share on other sites More sharing options...
bolarbag Posted June 19, 2007 Share Posted June 19, 2007 I have had Supras in here with at least 2 different carbon fibre bonnets and both were considerably heavier than the stock one! Good quality Fibreglass bonnets are the way to go, my Shiftsports Bonnet has the oem hooks for the latches and my abflug nosecone sits a couple of mm above the front of the bonnet, aerodynamically sound:) Quote Link to comment Share on other sites More sharing options...
bolarbag Posted June 19, 2007 Share Posted June 19, 2007 15-20 kilos of tar sound deadening Are you serious? Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 19, 2007 Share Posted June 19, 2007 Just checked your garage, if you have big wheels I wouldnt bother! ... mine are only 18" - can't get 17's over the brakes ( awaits damning comments from Chris ) Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 19, 2007 Share Posted June 19, 2007 Are you serious? .. aparently there's very little sound proofing in the supe, its all in the carpet/rear seats and bulkhead ... I'll let you know when mine comes out. Quote Link to comment Share on other sites More sharing options...
Animal Posted June 19, 2007 Share Posted June 19, 2007 I've replaced the bonnet, boot lid & doors/door cards with carbon fibre. I'd say the bonnet is the same weight, if not a touch heavier, but the doors and especially the boot are seriously lighter. I keep meaning to get to a weighbridge and find out what the difference is, but haven't had the time yet. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted June 19, 2007 Share Posted June 19, 2007 I've replaced the bonnet, boot lid & doors/door cards with carbon fibre. I'd say the bonnet is the same weight, if not a touch heavier, but the doors and especially the boot are seriously lighter. I keep meaning to get to a weighbridge and find out what the difference is, but haven't had the time yet. Where did you source carbon doors, and what do they weigh? Thanks. Quote Link to comment Share on other sites More sharing options...
lucasl Posted June 19, 2007 Share Posted June 19, 2007 removal of the electronic front lip or aftermarket front bumper, i didnt realise how heavy that thing is before i took it off. Quote Link to comment Share on other sites More sharing options...
grahamc Posted June 19, 2007 Share Posted June 19, 2007 Can't believe no-one has mentioned the 15-20 kilos of tar sound deadening thats stuck to the floor under the carpets. When I do mine I'll try and get some example weights. My mk2 supra weighed in at 1200kg dead on, from about 1315kg, after I removed all the interior trim (except the main dash, doorcards and front seats which were still stock) engine damper and ALL the A/C system removed (including the evaporator under the dash), all the tar sound deadening, all the stereo, amp and all speakers, charcoal canister. Could have got lighter, had I replaced the seats with buckets, polycarb'd the windows, removed the bumper support bars, etc etc. Where is all this sound deadening?? I have had most of the interior out, and saw very little... Quote Link to comment Share on other sites More sharing options...
grahamc Posted June 19, 2007 Share Posted June 19, 2007 small single turbo would take some of the weight out as well. Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 19, 2007 Share Posted June 19, 2007 small single turbo would take some of the weight out as well. Oawwwww Yes ! ( in a churchill insurance voice ) Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 19, 2007 Share Posted June 19, 2007 Where is all this sound deadening?? http://www.mkivsupra.net/vbb/attachment.php?attachmentid=35849&d=1148114896 I have had most of the interior out, and saw very little... ... I can see it.... Top left, under the pedals Quote Link to comment Share on other sites More sharing options...
SteveL Posted June 19, 2007 Share Posted June 19, 2007 or anyone else who's tracked their supe ... Any ideas how low the fuel level in the tank can be taken before fuel starvation? I'm running a single pump at the moment... Quote Link to comment Share on other sites More sharing options...
grahamc Posted June 19, 2007 Share Posted June 19, 2007 Oawwwww Yes ! ( in a churchill insurance voice ) ... I can see it.... Top left, under the pedals well if that weighs 20kgs, then its got to go! Quote Link to comment Share on other sites More sharing options...
Animal Posted June 19, 2007 Share Posted June 19, 2007 Where did you source carbon doors, and what do they weigh? Thanks. They came from the Future Motorsports group buy, but MVP are probably the best bet. Unfortunately, I didn't weigh them before they got fitted as everything went straight to the bodyshop for painting & fitting. I'll be wanting my geometry setting-up soon, so you can have a shufty at them then. Even with the glass back in and the stock wing fitted, the boot lid is probably half the weight of the original. Quote Link to comment Share on other sites More sharing options...
uzthedentist Posted June 19, 2007 Author Share Posted June 19, 2007 I've replaced the bonnet, boot lid & doors/door cards with carbon fibre. I'd say the bonnet is the same weight, if not a touch heavier, but the doors and especially the boot are seriously lighter. I keep meaning to get to a weighbridge and find out what the difference is, but haven't had the time yet. have u got a lexan rear window mate? this cf rear hatch thing is something im considering Quote Link to comment Share on other sites More sharing options...
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