Unofficial weight reduction thread
- Thread starter nsxsupra
- Start date
Fuel cell placement? Man you guys are doing some advanced mods... We can get rid of the engine!!! That's some weight reduction! :biggrin:
Well then just follow what the factory engineers did. Center console: :wink:
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- Joined
- 5 December 2009
- Messages
- 53
The weight loss on the lightweight rotors seems high. I assume the replacements you used were aluminum center section rotors. Did you get to weigh the replacements? I have never held aluminum center section rotor nor have I weighed them. I am just going off tech support that got from two big vendors of NSX items, who both said they weigh 1 to 1.5 lbs less per corner, which is still a big drop in unsprung weight.
Update: I am at 2650lbs and getting lighter with each time I dont say "supersize that meal deal for me". I just added Enkei RPF1's in the stock 16/17 sizes and a 12lb exhaust to replace my 47lb cat back exhaust.
Update: I am at 2650lbs and getting lighter with each time I dont say "supersize that meal deal for me". I just added Enkei RPF1's in the stock 16/17 sizes and a 12lb exhaust to replace my 47lb cat back exhaust.
I weighed OEM and Stoptech rotors when I upgraded recently. The OEM are surprisingly heavy...
front rotor
OEM - 15 lbs (each)
Stoptech 14.3 lbs
rear
OEM - 15 lbs (each)
Stoptech 11.7 lbs
saving (0.7 + 3.3) * 2 = 8 lbs.
The Stoptechs have aluminum centers, but are large (328 x 28). If replacing with smaller lightweight rotors I reckon 14lbs saving is possible.
BTW the whole Stoptech system (4 wheels), ignoring e-brake saved 9.5 lbs over OEM. With e-brake adds 13.5 lbs, giving a net increase of 4 lbs .... pretty impressive for a much larger and more capable braking system.
front rotor
OEM - 15 lbs (each)
Stoptech 14.3 lbs
rear
OEM - 15 lbs (each)
Stoptech 11.7 lbs
saving (0.7 + 3.3) * 2 = 8 lbs.
The Stoptechs have aluminum centers, but are large (328 x 28). If replacing with smaller lightweight rotors I reckon 14lbs saving is possible.
BTW the whole Stoptech system (4 wheels), ignoring e-brake saved 9.5 lbs over OEM. With e-brake adds 13.5 lbs, giving a net increase of 4 lbs .... pretty impressive for a much larger and more capable braking system.
Most of the weight savings on the Brembo BBK are not from the rotors, they are from the calipers. I would assume stoptech does the same? I noticed a huge difference in ride quality and suspension response when I put the BBK on.
So I've read through this whole thread and wow some of you guys are hardcore, but I have a very basic question about balance. I have a 1992 coupe.
If theoretically I were to remove the following pieces:
Spare Tire + Bracket 32.4 lbs
Engine Cover 15 lbs
AC Compressor 16 lbs
AC Intercooler 15.5 lbs
AC Condensor + Pipes 6.4 lbs
CD Player 8 lbs
Trunk Mat 6.2 lbs
All Tools Including Jack 17 lbs
Stereo Head Unit 4 lbs
Door Speakers 8.8 lbs
Passenger Side Sub 1.4
Front weight reduction 69 lbs
Rear weight reduction 46.2 lbs
Difference 22.8 lbs
Total = 130.7 lbs weight reduction.
Curb weight on my car according to the manual is 2976, the car should weigh
2845.3 after modification. Since most of the really heavy stuff like the spare tire and the AC are up front what else can I do to try and balance it out?
I'm not a big fan of loud exhausts and so on although I love the sound of the GT One F1. I already have poor hearing and don't want to make the situation any worse.
If theoretically I were to remove the following pieces:
Spare Tire + Bracket 32.4 lbs
Engine Cover 15 lbs
AC Compressor 16 lbs
AC Intercooler 15.5 lbs
AC Condensor + Pipes 6.4 lbs
CD Player 8 lbs
Trunk Mat 6.2 lbs
All Tools Including Jack 17 lbs
Stereo Head Unit 4 lbs
Door Speakers 8.8 lbs
Passenger Side Sub 1.4
Front weight reduction 69 lbs
Rear weight reduction 46.2 lbs
Difference 22.8 lbs
Total = 130.7 lbs weight reduction.
Curb weight on my car according to the manual is 2976, the car should weigh
2845.3 after modification. Since most of the really heavy stuff like the spare tire and the AC are up front what else can I do to try and balance it out?
I'm not a big fan of loud exhausts and so on although I love the sound of the GT One F1. I already have poor hearing and don't want to make the situation any worse.
Guess in 19 years i've never looked at the weight in the manual. I've been using 3010. Can anyone reconcile this? Honda adding in floor mats, CD player and other things? I'd love to start with the manual number in my calc.
Regarding the "imbalance", you should probably go the the track talk section. I've already done these mods and have done two track sessions since. But i would think this small change will be overshadowed by your own personal track experience as to how much understeer you want or need for your skill level. Sway bar changes would be the course of action i would think. I did lose the back a couple of times, but i lost the back a couple of times with the stock vehicle also, but never any spins. Tires and of course alignment settings could probably do this also. I wouldn't worry about it. The loss of weight should be a net POSITIVE.
Quick question as it relates to this thread:
Can I run around without an engine cover altogether?
Can I run around without an engine cover altogether?
you sure can. Only thing to keep in mind is degradation due to sun exposure of rubber/plastic parts in engine bay, e.g. many fit the black NSX-R cover over the coolant bottle.
So were they worse or better?
The early models with manual steering are the lightest and that accounts for the difference between 3010 lbs and weights below 3000 lbs on stock cars.
Much much better, the calipers are aluminum as well as the rotor hats. Combined w ultra lightweight wheels even the type r suspension is now bearable.
Wipers/motor from the front windshield. :biggrin:
LOL ??? damn, I don't get it
so what DID u remove ALau99 ?
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ALau99 you win the prize - as the most cryptic poster on prime!
I've still got no idea what you're talking about.
I've still got no idea what you're talking about.
nope :tongue:
The Honda advertised weight was 3010 on the early cars which were ALL manual steering. Don't understand your post.
The Black and Silver Acura book lists 3010 curb weight. Our Wiki is hardly a reliable source of detailed data. Those contents were put in by us. Actually there is some data there from me even(!) In the myriad of articles, that most of us have, Honda obviously gave the magazines the 3010 number. Since they were concerned about weight after they added quite a bit, i'd be surprised if the mag number was wrong.
I can't find my "small honda nsx" book.
I suspect the manual number is with an empty fuel tank. Or perhaps the manual was done before Senna had them add the undercarriage sitffeners.
FWIW i just looked at the manual of one of mini-vans. It shows a weight of almost 250 lbs less than the toyota advertised weight.
Did anyone remove the headlight lens/bulbs/and wiring parts; thus leaving the brackets and covers?
I plan on doing this and just getting piaa fog lights as my headlights and mounting them in the bumper.
How much weight savings with this diet?
Also, took out the front hood prop rod as well. Don't think anyone mentioned this.
chime in please.
I plan on doing this and just getting piaa fog lights as my headlights and mounting them in the bumper.
How much weight savings with this diet?
Also, took out the front hood prop rod as well. Don't think anyone mentioned this.
chime in please.
Well that sounds like a worthwhile tradeoff....you will lose five or 10 pounds and significant illumination but your forward vision will be greatly improved since you won't have the pop-ups blocking your line of sight. Actually this just might work if you don't drive in the dark. :wink:
You could also remove your rear brake rotors and calipers since they hardly do much of the braking. That would save a bunch of weight. :biggrin:
Where the hell is the sarcasm smilie anyway?
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