Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Exterior & Interior (http://www.the370z.com/exterior-interior/)
-   -   The 370Z Weight Reduction Thread (http://www.the370z.com/exterior-interior/1010-370z-weight-reduction-thread.html)

travisjb 01-23-2011 11:17 AM
Quote:
Originally Posted by Skeeterbop (Post 907985)
Do you have an accurate idea of what your car currently weighs? I would be interested to hear.
I'll post corner weights next couple weeks... previously at 3,250 with driver and safety gear and full tank of gas... Long-term goal is 3,100 with same... seems crazy, but we're taking it one pound at a time at this point

SPOHN 01-23-2011 12:26 PM
I just saved one pound with lug nuts.:tup: I belived I saved about 6 to 8 pounds on my wheels also.

RCZ 01-23-2011 02:57 PM
Quote:
Originally Posted by travisjb (Post 907913)
FYI -

Removed ebrake and related handle, cables and assemblies for savings of 8-9 pounds

There are brackets supporting the front fascia that are over-built, removed about 5 pounds of brackets

Was previously using aftermarket dual oil coolers and now going down to one but adding shrouding to increase effectiveness - will be net weight savings of 5 pounds

Will be replacing headlights with covers for any day time events for net weight savings of 10 pounds

Have another 80-100 pounds we are targeting and will report back here later
Thanks for those travis. I will check those out! Did you find that running two coolers was not that much more effective than one with a shroud or are you just doing it for weight savings?

Great suggestions!

travisjb 01-23-2011 03:11 PM
two coolers = -15F versus one cooler... my belief is that I will gain back those 15F by adding the shroud... with two coolers I was able to run in AZ summer heat, goals is to do that with one

RCZ 01-31-2011 01:39 PM
Which cooler are you using? What are the dimensions of the core and the lines?

Also please let us know how the shroud turned out and post lots of pictures man.

theDreamer 01-31-2011 01:42 PM
RCZ, you order that battery yet?

RCZ 01-31-2011 01:53 PM
Nope, not yet.

NewYorkJon34 01-31-2011 02:18 PM
RCZ, you put that lip on yet? lol

RCZ 01-31-2011 05:37 PM
nope haha, I promise I'll get it done this weekned...

kkruel55 02-08-2011 06:02 PM
Anything on brake kits? Rotors/calipers etc...

travisjb 02-08-2011 07:39 PM
Quote:
Originally Posted by travisjb (Post 908025)
I'll post corner weights next couple weeks... previously at 3,250 with driver and safety gear and full tank of gas... Long-term goal is 3,100 with same... seems crazy, but we're taking it one pound at a time at this point
car is now 3,135 with driver and half tank of gas... so probably another 70 lbs to get to our goal of 3,100 with full tank

Re brake kits weights, I know I saw that discussed somewhere around here recently... try the brakes section and look for the threads with recent posts

NewYorkJon34 02-17-2011 06:45 PM
I recently had my calipers powdercoated by Mike, so I decided to weigh the sport package calipers before I get them installed. The front calipers weigh 12lbs & the rear weighs 6lbs.

Z eliminator 02-18-2011 07:28 AM
I have the 15 lb braile bat. I have to keep a battery tender on it or it will not start the car , My garage temp is between 38 and 47 degress F. Its a pain. In the summer if do not drive it for a week i have to put a 2 amp tricle charge on it for 40 min before it will start.
At the drag stip i accidently left the ignion switch in the on postion with the moter off and it killed the battery in less that 30 min.
it saved me 20 lbs.
I bought the 1.75 amp charger from a GM dealer, its the one he sells for the corvette.
Z.

spearfish25 02-22-2011 12:06 PM
Quick question:

How much of a benefit do you guys think there would be for getting a 50/50 weight distribution from the stock 53/47? It's certainly doable, but I'm curious about how beneficial the change would be.

Shamu 02-22-2011 01:42 PM
1 Attachment(s)
Here are stock 19x10.5 and 19x9.5 Nismo Wheels and 245/285 Yokohama tires compared to 18x10.5 and 18x9.5 WedsSport wheels with 285 and 315 width Hoosiers.

Zeto 02-22-2011 02:22 PM
Quote:
Originally Posted by Shamu (Post 952658)
Here are stock 19x10.5 and 19x9.5 Nismo Wheels and 245/285 Yokohama tires compared to 18x10.5 and 18x9.5 WedsSport wheels with 285 and 315 width Hoosiers.
Nice! How much were the wheels and where did you get them?

Shamu 02-22-2011 03:16 PM
Quote:
Originally Posted by Zeto (Post 952745)
Nice! How much were the wheels and where did you get them?
Z Car Garage does all my ordering for me. Not sure where he got them. We have a forum vendor selling them for $2295 shipped however. I like the titanium color.

Nismo221 02-23-2011 10:01 PM
Anyone know the weight of Greddy's Ti-C Dual exhaust compared to the stock Nismo's?

FL4T 02-27-2011 04:53 PM
Weight Reduction - NASIOC

here is a link to the Weight Reduction thread on NASIOC, the link to the anal iwsti guy are in there, as well as about 10 years of little weight savings things.

has anyone removed their ABS?
Carbon Fiber hood, roof, hatch, doors.
Home - Aerosim Research Ltd.
^ these guys will pretty much make anything in carbon fiber, they also make wrx/evo roofs. AMS performance also makes carbon roofs.

also, some serious weight can be saved by taking out some of the overkill safty brackets. even more if the car is track only.

RCZ 03-10-2011 11:46 PM
I remember that thread from NASIOC.... guy was obsessed...

Jordo! 03-24-2011 05:06 PM
Don't know if anyone has noticed this, but I think the weights listed for the OEM 19's are wrong...

http://productcat.bridgestonetire.co...pp_1369443.pdf

Apparently front and rear tires are around 26.7 lbs? Is this not correct? :confused:

EDIT: Wait -- listed heavier on Tire rack?! Is that the weight people are going by? I guess it's more likely to be accurate...?

Red__Zed 04-14-2011 08:43 AM
Epically useful thread.

SPOHN 04-14-2011 09:59 AM
Quote:
Originally Posted by spearfish25 (Post 952476)
Quick question:

How much of a benefit do you guys think there would be for getting a 50/50 weight distribution from the stock 53/47? It's certainly doable, but I'm curious about how beneficial the change would be.
I read on Nissans website that they feel this weight ratio is perfect for the car and the way the suspension is setup. But there's still understeer from the factory. But that's to keep it somewhat safer for novice drivers. But I Still feel there plenty of benefit from a 50/50 setup if you set your suspension properly.

ChipsWithDips 04-27-2011 02:42 PM
So still no weights on the base model wheels/tires? I may have to just weight them myself.

Anyways, I was googling around for wheel weight and found a really nice post on another forum. It has some models and sizes not listed on the wheelweights.net spreadsheet(i have a feeling that thing is a bit out of date):
Wheel Weight Comparison - BMW M3 Forum (E90 E92)

The other nice thing is they are all pretty much right around the sizes you would be looking at for a 370z.

NewYorkJon34 04-29-2011 09:58 PM
Weighed my new RacingBrake 2-piece front rotors at 22lbs a piece vs. 30+ for the stock rotors, acceleration has improved.

wstar 06-13-2011 02:08 PM
Minor update on lug nuts. Top post lists the stock ones as "3 lbs". On my kitchen scale the sport package ones (are they all the same?) come in at 76.5g per lug nut, which is 1.530 kg for the whole car, or 3.366 lbs.

Muteki's open-ended tuner nuts come in at 25g (1.1 lbs total), and the closed-end ones at 60g (2.64 lbs) (per mfg specs).

It's not much, but every little bit helps :)

Joebarchuck 06-13-2011 04:21 PM
Quote:
Originally Posted by travisjb (Post 908025)
I'll post corner weights next couple weeks... previously at 3,250 with driver and safety gear and full tank of gas... Long-term goal is 3,100 with same... seems crazy, but we're taking it one pound at a time at this point
How much weight do you think you could gain by changing body parts to dry carbon fiber parts such as the hood, fenders, roof, etc...

RCZ 06-13-2011 04:27 PM
^ Not much.

Joebarchuck 06-13-2011 04:56 PM
It makes sense and I guess that's why Seibon does not advertise it's parts weight because they barely offer weight reduction over stock parts.

jnaut 06-13-2011 08:39 PM
Quote:
Originally Posted by Joebarchuck (Post 1166637)
How much weight do you think you could gain by changing body parts to dry carbon fiber parts such as the hood, fenders, roof, etc...

your wallet will be very light.

b1adesofcha0s 06-13-2011 08:51 PM
Quote:
Originally Posted by jnaut (Post 1167228)
your wallet will be very light.
:icon18:

wstar 06-13-2011 09:01 PM
Quote:
Originally Posted by jnaut (Post 1167228)
your wallet will be very light.
Yup. Good example: Varis semi-dry carbon hood, OEM replacement shape. 6 lbs lighter for $3.2k :eek2:

Isamu 06-14-2011 03:09 AM
Quote:
Originally Posted by wstar (Post 1167273)
Yup. Good example: Varis semi-dry carbon hood, OEM replacement shape. 6 lbs lighter for $3.2k :eek2:
6lbs is not worth 3.2k... unless of course you are rich, and building a real race car.

b1adesofcha0s 06-24-2011 01:57 PM
Quote:
Originally Posted by Isamu (Post 1167748)
6lbs is not worth 3.2k... unless of course you are rich, and building a real race car.
Would be cheaper to lose 6 lbs off your own body weight :icon17:

Isamu 06-24-2011 02:03 PM
Quote:
Originally Posted by b1adesofcha0s (Post 1187916)
Would be cheaper to lose 6 lbs off your own body weight :icon17:
yea no ****...

Equinox 06-30-2011 02:06 PM
the average cost of liposuction starts at 2k. Lol.

RCZ 06-30-2011 05:29 PM
^ running a few miles works too.

Equinox 06-30-2011 06:09 PM
^ well if you're blowing 3.5k on weight reduction already, I figured 2k for more lost weight is better. I suppose free is cheaper too.

Methodical4u 08-26-2011 01:44 PM
Quote:
Originally Posted by NewYorkJon34 (Post 1081166)
Weighed my new RacingBrake 2-piece front rotors at 22lbs a piece vs. 30+ for the stock rotors, acceleration has improved.
so from 16 lbs your acceleration has improved?

theDreamer 08-26-2011 01:46 PM
Quote:
Originally Posted by Methodical4u (Post 1282940)
so from 16 lbs your acceleration has improved?
Well it is 16lbs of rotating mass so yes acceleration will improve slightly.
Rotor, wheels can be big helps when cutting weight as they are also rotating mass.


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