G35 Weight Reduction Index

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Sentientbydesign
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G35 Weight Reduction Index

Postby Sentientbydesign » Fri Jun 13, 2008 10:45 am

The following list will be compiled as I weigh the various parts on my 05 G35 6MT Coupe. If you have any information to fill in, please list it, but I am looking for exact first hand weights. Not estimates, or information derived from 3rd party sources.

The goal is to find unnecessary weight. As we all know, the G35 Coupe is quite chunky. Especially the doors.

If someone is interested in doing this for a 1st or 2nd gen Sedan or the G37, please let me know and I'd be happy to help format the information.

Wheels-

19" Forged Rays-

Fronts-Rears-Lug Nuts

Doors-

Glass Window-Inner cover- 10lbsShell-Electronics-Weather Stripping-Speakers-

Mats-

Floor Mats- 7.5lbsTrunk Mat- 6lbsUnder-mat Support- 3lbs

Seats-

D/S-P/S-Rear Upper-Rear Lower-

Engine Compartment-

Plenum Cover-Battery Cover-Stock Intake (Throttle to inlet excluding MAF)-Battery-

Hood-Trunk-

Trunk Contents

Spare Tire- 32lbsJack and tools- 6lbsLeft and right plastic inserts- 4lbs (2lbs each).


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Re: G35 Weight Reduction Index (Sentientbydesign)

Postby Kenrik » Mon Jun 16, 2008 4:35 pm

I don't know where they Hid the 3400+ LBS...

I'm still trying to figure it out

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Re: G35 Weight Reduction Index (Kenrik)

Postby Sentientbydesign » Tue Jun 17, 2008 6:22 am

Me too, Kenrik...me too.

I think the doors are one of the biggest culprits as I can barely keep mine open when on a slight incline. Seats are probably the second biggest.

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Re: G35 Weight Reduction Index (Sentientbydesign)

Postby Cali 2 Balti G » Thu Jun 19, 2008 6:43 am

So when will you begin your research?

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Re: G35 Weight Reduction Index (Cali 2 Balti G)

Postby Sentientbydesign » Thu Jun 19, 2008 6:51 am

I need to get an accurate scale first. Then I need time lol.

This Saturday, I'm helping with the company picnic. Sunday is my drift event.

I'll probably have the wheel weights before Saturday as I plan on weighing them while the tires are being swapped out.

I also have 1 grounding kit order which I need to fill too lol. Busy busy busy.

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Re: G35 Weight Reduction Index (Sentientbydesign)

Postby Beancooker » Thu Jun 19, 2008 5:53 pm

Hey Nate, I added the trunk contents also. I wouldn't consider leaving them out of my car, but I should have set them in the pit area when I took the G to the track.


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Re: G35 Weight Reduction Index (Sentientbydesign)

Postby smockers83 » Thu Jun 19, 2008 7:23 pm

The 19" fronts reportedly weigh 19 lbs, the backs weigh 21 lbs.

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Re: G35 Weight Reduction Index (Beancooker)

Postby Sentientbydesign » Fri Jun 20, 2008 6:11 am

Thanks Noah. I think I lost a few neurons while making the list and there were other parts that should be on the list that aren't. I'll get to it soon.

Smockers83 (I always think of PB&J when I see your name). I've seen those numbers for the 19s. I want to believe them, but the one thing I've learned on NICO is never take a report and repeat it as fact unless you're sure and since I'll have the opportunity to check this myself, I might as well.

2 reports of the same weight will definately help sceptics more than one

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Re: G35 Weight Reduction Index (Sentientbydesign)

Postby smockers83 » Sat Jun 21, 2008 3:20 pm

Sentientbydesign wrote:Smockers83 (I always think of PB&J when I see your name). I've seen those numbers for the 19s. I want to believe them, but the one thing I've learned on NICO is never take a report and repeat it as fact unless you're sure and since I'll have the opportunity to check this myself, I might as well.

2 reports of the same weight will definately help sceptics more than one
Touche, those numbers came from 350z-tech and I think they're a reliable source for info. And you aren't the first one to think of PB&J...ever since I started getting called by my last name in 6th grade, I've heard that.

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Re: G35 Weight Reduction Index (smockers83)

Postby USAF_G35_Guy » Mon Jul 21, 2008 11:20 pm


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Re: G35 Weight Reduction Index (USAF_G35_Guy)

Postby USAF_G35_Guy » Mon Jul 21, 2008 11:32 pm

just do whatever this guy did.....roughly a 600-700lb drop

http://www.race-cars.com/carsa...s.htm

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Re: G35 Weight Reduction Index (USAF_G35_Guy)

Postby TeflonG35 » Tue Jul 22, 2008 6:01 am

Thats insane.

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Re: G35 Weight Reduction Index (USAF_G35_Guy)

Postby Sentientbydesign » Tue Jul 22, 2008 6:28 am

How are they getting 295 ft lbs of torque?

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Postby AZhitman » Tue Jul 22, 2008 6:30 am

Door issue has more to do with weak detents than anything.

Mine don't even stay open on flat ground.

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Re: (AZhitman)

Postby Sentientbydesign » Tue Jul 22, 2008 12:29 pm

The door inserts felt like at least 10lbs. I'm thinking more, but It's hard finding an accurate scale that measures small and large weights accurately...unless I want to dish out serious dough.

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Re: (Sentientbydesign)

Postby coolbratva » Sat Sep 06, 2008 7:16 pm

I still can't believe that g only weighs around 50lbs less than 05 mustang gt. I mean mustang was always known as some heavy muscle car. Where g has most of the parts made out of aluminum.

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Re: (coolbratva)

Postby Sentientbydesign » Sun Sep 07, 2008 6:01 am

coolbratva wrote:I still can't believe that g only weighs around 50lbs less than 05 mustang gt. I mean mustang was always known as some heavy muscle car. Where g has most of the parts made out of aluminum.
I'd check the chassis flex between a mustang and a G35, then compare the "luxury" items in both.

The coupe weighs as much as it does because they did a lot to try and keep the chassis stiff (could have been better) and to keep the interior relatively quiet.

I honestly believe there is around 200lbs of weight that can be shaved without sacraficing functionality.

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Re: (Sentientbydesign)

Postby adren77 » Mon Sep 15, 2008 11:56 am

I'm still waiting for some numbers

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Re: (adren77)

Postby Sentientbydesign » Fri Sep 19, 2008 1:20 pm

I'm sorry. Grounding kits have been ruling my life.

I'll see if I can convince the wife to let me buy a scale this weekend.

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Re: (Sentientbydesign)

Postby SteveTheTech » Fri Oct 31, 2008 12:59 pm

I just found this thread in the bowels of the modification database. This is a very interesting concept. I am not willing to blow tons of cash on a scale but I will try to get a bathroom scale for work to weight some things.

I do not believe that a G should be stripped down unless it is at the track. There are tons of weight inside the car but with the additional weight comes the fit and feel of a luxury car.

I know for a fact there are more than 100lbs of wires in the G (I have had to replace all of them). The door panel weights <10lbs, and far less than the window. If you want to cut weight out of the door remove the finisher,window and regulator plate. The center console weights a good 15lbs and the radio has to be ~10lbs. The carpet mat in the trunk is pretty thick and must weight 15-20lbs, plus all the additional stuff in there,tire,tools,and Styrofoam are dense.

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Re: (SteveTheTech)

Postby Sentientbydesign » Fri Oct 31, 2008 1:22 pm

I think the door inserts weigh much more than 10lbs.

Sorry to all who have been waiting on me. Too many other projects. I'll go buy a scale tomorrow.

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Re: (Sentientbydesign)

Postby SteveTheTech » Fri Oct 31, 2008 1:33 pm

You are talking about the door finisher panel right? I just had one of those out two hours ago and I doubt it weighs that much. It very well may but it is not physically heavy. Take the back seat out if you want to save weight.

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Re: (SteveTheTech)

Postby Sentientbydesign » Fri Oct 31, 2008 1:51 pm

The hard plastic interior part of the door that has the handle, cup holder, and little storage area. I'm sure it weighs less on a sedan than a coupe, but when I took the one out of the coupe it was scary how heavy it was. Maybe it's just weight distribution.

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Re: (Sentientbydesign)

Postby SteveTheTech » Fri Oct 31, 2008 2:18 pm

There is nothing to it though I am trying to find out what the exact weight is without having to go to work and explain to people WTF I am doing there on a saturday with a bathroom scale and a coupe.

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Re: (SteveTheTech)

Postby BrandAidDesignG35 » Fri Nov 28, 2008 7:14 am

That would be pretty awkward Just say some technobabble about how weight ratios affect vehicle mpg up to 4.068% with a bla bla... you know the words...

Then explain you're doing some testing for Nico because you are the man, that will shut them up

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Re: (BrandAidDesignG35)

Postby tollboothwilley » Tue Dec 02, 2008 8:53 pm

SBD

where's your weight index??

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Re: (tollboothwilley)

Postby Sentientbydesign » Wed Dec 03, 2008 8:04 am

I'm lazy!!! Wife keeps talking about getting a scale, but we go round and round about what type and whether to get two or not.

I'm sorry. I've failed you *looks down* lol.

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Re: (Sentientbydesign)

Postby tollboothwilley » Sun Dec 07, 2008 5:35 pm

haha

just go buy a nice one, no need for a great one.

gotta see what you think we can shed off the car

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Re: (tollboothwilley)

Postby Sentientbydesign » Mon Dec 08, 2008 8:08 am

Did some quick updates to the list. Steve was right about the door inserts. I think the weight distribution makes them feel heavier than they actually are. 10lbs still seems like a lot to me. Especially since it's all plastic (EPS is still plastic as far as I'm concerned).

There's approximately 61lbs that can be shed from the trunk. More than that if you start pulling the formed carpet off the side walls and scrape the sound deadening material off of the metal (NOT RECOMMENDED).

If anyone does ditch those items, just realize you might lose some traction as those items sit right above the rear wheels.

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Re: (Sentientbydesign)

Postby ldstang50 » Tue Jan 20, 2009 11:24 am

Sentientbydesign wrote:Did some quick updates to the list. Steve was right about the door inserts. I think the weight distribution makes them feel heavier than they actually are. 10lbs still seems like a lot to me. Especially since it's all plastic (EPS is still plastic as far as I'm concerned).

There's approximately 61lbs that can be shed from the trunk. More than that if you start pulling the formed carpet off the side walls and scrape the sound deadening material off of the metal (NOT RECOMMENDED).

If anyone does ditch those items, just realize you might lose some traction as those items sit right above the rear wheels.
Yup yupFound that out the 'hard' way by getting beat at my first auto-x with the car. I did my thing and removed all the items I could, but the rear was real tail happy. Took advice from a fellow z driver and put it back in, and the rear was more planted.


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