Chiefgroover Posted April 27, 2006 Share Posted April 27, 2006 Go on Martin, do the right thing, put a big tub on and make it fly ! Quote Link to comment Share on other sites More sharing options...
SimonB Posted April 27, 2006 Share Posted April 27, 2006 A 12 stone passenger is going to weigh about 5% of the car's weight. That's like having 5% extra power when they're not there. Should notice that just about! Carbon bonnets are not a great weight saver BTW, the standard aluminium one doesn't weigh that much, and the carbon ones seem to be layed on fibreglass and weigh pretty much the same apparently. Quote Link to comment Share on other sites More sharing options...
Suprash Posted April 27, 2006 Share Posted April 27, 2006 Im with the Cheif on this one, I just cant see how you can tell, I cant, even if my fuel tank is empty/full, and the car has 1,2,3 or 4 passengers. In fact you have just made me realise that when Im in the Supra I dont notice whether the car is loaded or not like I have in the past in previous cars, ie fully loaded with 4 people climbing a hill, plant right foot, and not a lot happens, with the Supra the tubbies just start laying down boost, and its always a case of here we go.......... Unless you go Chris' route then I doubt you would ever notice it, you might see a fraction on a stop watch, but you wont be able to feel it......... Quote Link to comment Share on other sites More sharing options...
Suprash Posted April 27, 2006 Share Posted April 27, 2006 A 12 stone passenger is going to weigh about 5% of the car's weight. That's like having 5% extra power when they're not there. Should notice that just about! Carbon bonnets are not a great weight saver BTW, the standard aluminium one doesn't weigh that much, and the carbon ones seem to be layed on fibreglass and weigh pretty much the same apparently. Any idea what a full fuel tank weighs ?? Quote Link to comment Share on other sites More sharing options...
Suprash Posted April 27, 2006 Share Posted April 27, 2006 So my car weighs 1550kg, and with 4 people in it it would then weigh 1829kg, quite amazing really, you would have thought I should notice that, but then I doubt you would just excellerating and stopping, on the slide you might notice it, but them I dont tend to do that when fully loaded up, lol... Quote Link to comment Share on other sites More sharing options...
NeoFuture Posted April 27, 2006 Share Posted April 27, 2006 how about buying a lighter car, lol i like my creature comforts Quote Link to comment Share on other sites More sharing options...
paul mac Posted April 27, 2006 Share Posted April 27, 2006 The carbon bonnet is worthwhile well have to take exception here mate, your saying weight saving is a waste of time then come out with a statement like that have you ever taken an ally bonnet off they weigh as much as fag packet and i would guess the difference between a carbon one (including bonnet pins) and a stock one would 1-2 kg at most Quote Link to comment Share on other sites More sharing options...
Chiefgroover Posted April 27, 2006 Share Posted April 27, 2006 Lucky enough you'd have a helluva job getting four full size adults into your Supra lol, so people weight can never be a problem. If weight was that sensitive the girlfriend weight threshold would go down from size 12 to size 6! lmao!. Now put all that stuff in Suprarash, and quit raping your car Quote Link to comment Share on other sites More sharing options...
Chiefgroover Posted April 27, 2006 Share Posted April 27, 2006 well have to take exception here mate, your saying weight saving is a waste of time then come out with a statement like that have you ever taken an ally bonnet off they weigh as much as fag packet and i would guess the difference between a carbon one (including bonnet pins) and a stock one would 1-2 kg at most There is me thinking these were true carbon bonnets, anyway I meant in conjunction with enough other mods to make a large KG saving. Quote Link to comment Share on other sites More sharing options...
Chiefgroover Posted April 27, 2006 Share Posted April 27, 2006 Has the displeasure of removing my bonnet 2 months ago still have it out the back somewhere. Quote Link to comment Share on other sites More sharing options...
Suprash Posted April 27, 2006 Share Posted April 27, 2006 Lucky enough you'd have a helluva job getting four full size adults into your Supra lol, so people weight can never be a problem. If weight was that sensitive the girlfriend weight threshold would go down from size 12 to size 6! lmao!. Now put all that stuff in Suprarash, and quit raping your car What stuff Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted April 28, 2006 Share Posted April 28, 2006 I was bored one day and started stripping loads of stuff out of car. removed rear seats rear seatbelts and fixings spare wheel and all trim and boot carpet. front and rear speakers double din cd/tv/radio all audio cables front tow hooks air con rad and piping (air con pump needs to go) charcoal canister and piping front crash bar ariel removed and motor out car came with no active spoiler or cruise control so less weight there. thats all i can think of from top of head.the stereo was a saving of 10kg i once had 4 passengers in supra and i did not know what was wrong with car was slow as hell.soon as the 2 rear passengers were out you could tell the difference in speed. there is a big weight reduction thread on supraforums if you a member.good read.suppose if you can help to make it a bit quicker it has to be good.seeing a supra getting beat by a smaller car is crap. http://www.supraforums.com/forum/showthread.php?t=104866&page=1&pp=25&highlight=weight+reduction Quote Link to comment Share on other sites More sharing options...
colsoop Posted April 28, 2006 Share Posted April 28, 2006 The other thing not picked up about the weight saving is £ for £ it is cheaper than tuning the car. And weight is an important factor, ask Rays the roof. He went from 14 to 13.7 by removing the sound install, and the rear seats and passenger seat, about 45 kg worth. Quote Link to comment Share on other sites More sharing options...
Markie Posted May 13, 2007 Share Posted May 13, 2007 Interesting stuff.. 74 KG's is what I would save if I replace the two front seats with 9K Cobra ones and also took out the back seats... Would you really notice this weight saving in acceleration etc? Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted May 13, 2007 Share Posted May 13, 2007 I saved a good amount of weight with the Ti exhaust system.. but I dont think I've noticed any difference in performance at all with regard to the weight savings - something like 30-35kgs? Quote Link to comment Share on other sites More sharing options...
supragold Posted May 13, 2007 Share Posted May 13, 2007 Of course weight saving helps. It's all about power to weight ratio. Do you think that a lotus elise would be as good a car if it weighed as much as the supra? I stripped my car out when it went for a respray and the difference was amazing. On the airfield where I work I can just about hit 140 but when it was stripped out I could hit 150 before having to slow for the bend. Quote Link to comment Share on other sites More sharing options...
paul mac Posted May 13, 2007 Share Posted May 13, 2007 Interesting stuff.. 74 KG's is what I would save if I replace the two front seats with 9K Cobra ones and also took out the back seats... Would you really notice this weight saving in acceleration etc? the front drivers seat weighs 24kg and the passenger 18kg, i have cobra imolas which weigh about 6kg each but dont forget you then need side mounts and sub frames, all in and a lot of aluminium later i got the all up weight of the imolas to 14kg each, so the overall saving was only 14kg from swapping the front seats Quote Link to comment Share on other sites More sharing options...
Wez Posted May 13, 2007 Share Posted May 13, 2007 Dont think you need as much braking force to stop a lighter car and it should go round corners better I have all my rear stripped out but when I did RAF Marham I had a 12.5 stone mate with me on every lap so cant really compare. Quote Link to comment Share on other sites More sharing options...
Guest supraimpose Posted May 13, 2007 Share Posted May 13, 2007 Any idea what a full fuel tank weighs ?? Ok so this was asked a year ago, but I was interested to know the anwser. A little google and a calculator tells me that the fuel in a full 70L J-spec tank weighs in at 51.6Kg, and in an 80L UK weighs 59.0Kg So if you can't tell the difference in performance between a full tank and an empty one, then you would need a weight reduction of more than 60Kg to have any noticable improvement. Quote Link to comment Share on other sites More sharing options...
uzthedentist Posted May 13, 2007 Share Posted May 13, 2007 youd notice it more in braking than acceleration really. the braking distances improve significantly when you lighten the car. Meaning you can brake later and go faster aroundtrack. I noticed this mainly when i had my GT4 before the supra. I dont think youd notice a major difference over the 1/4 but around the track youd definitely get an improvement in times Quote Link to comment Share on other sites More sharing options...
bolarbag Posted May 13, 2007 Share Posted May 13, 2007 I could defo tell when I stripped my car, my car should weigh at most1280kg when complete...less than an evo with more power...its all down to basic physics! Quote Link to comment Share on other sites More sharing options...
paul mac Posted May 13, 2007 Share Posted May 13, 2007 I could defo tell when I stripped my car, my car should weigh at most1280kg when complete...less than an evo with more power...its all down to basic physics! wow 1280kg thats a lot of weight removed let us know how you get on Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 13, 2007 Share Posted May 13, 2007 Ok so this was asked a year ago, but I was interested to know the anwser. A little google and a calculator tells me that the fuel in a full 70L J-spec tank weighs in at 51.6Kg, and in an 80L UK weighs 59.0Kg So if you can't tell the difference in performance between a full tank and an empty one, then you would need a weight reduction of more than 60Kg to have any noticable improvement. 120 pounds plus is a BIG weight saving, i spend my working life trying to reduce weights by a few kilos, 60kg is a very worthwhile saving, and you should be able to feel and measure the difference. Quote Link to comment Share on other sites More sharing options...
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