The 370Z Weight Reduction Thread

M.Bonanni · 03-11-2009, 04:38 PM

Quote:

Originally Posted by tvfreakazoid

WOW it's dinky! I want one. How much do they cost?

$125

Odyssey PC680 Lightweight Battery

drisko · 03-16-2009, 04:13 AM

Another really easy weight loss tip: drain all of your windshield washer fluid then add back just a little (in case you need it). Might be worth a good 8 lbs of weight savings or so...not really sure. OR, just remove that huge washer fluid reservoir altogether!

I calculated my weight savings at around 80 lbs...and that includes new battery, no spare (keeping the subwoofer though), lighter tires, HF cats, lighter exhaust....but I am going to add an oil cooler (probably +8 lbs). Realistically, I'll also be running about 1/2 tank of gas...so I HOPE my total weight will be down around 3230 (I have touring with sport pckg).

M.Bonanni · 03-23-2009, 04:21 PM

Started preparations for the upcoming time attack this weekend and weighed a lot more stock pieces. All of these pieces were removed in approx. 10 min. and can just as easily be put back once you are done with the track!

Privacy shade thing out of the hatch area...

Some of the trunk plastics...

The rest of the trunk plastics/styrofoam...

Weight that was bolted to the hatch...

Location of said weight...

Stock lug nuts = 3 lbs. Muteki open end lugs = 1 lb. The Muteki's are not recommended for the stock wheels though.

Zeto · 04-14-2009, 12:22 PM

Quote:

Originally Posted by DDMotorsports

In road racing I think that losing weight, and moving weight are just as important as one another. Losing the maximum amount of weight is the ideal situation, but a lot of times, that doesn't work out in production based cars. Most of the weight you are going to be able to easily remove will be off the rear of the car. Eventually the weight difference front & rear will hurt handling more than the weight savings helps it. Moving weight to the places where you need it most while having as little effect on handling as possible can be more beneficial in some situations.

I have to disagree here. Coming from an S2K where weight reduction is crucial, I think one member put it best. He also happens to be one of the top S2000 drivers in the US.

Quote:

Originally Posted by FormulaRedline,Aug 9 2007, 08:09 PM

So cut a hole. No guts, no glory

I personally would take weight loss over weight balance any day. You can at least try to tune out uneven distribution through the suspension and tires. You can't tune out fat.

M.Bonanni · 04-14-2009, 12:25 PM

Quote:

Originally Posted by Zeto

I have to disagree here. Coming from an S2K where weight reduction is crucial. I think one member put it best. He also happens to be one of the top S2000 drivers in the US.

If you're building a full race car then yes. Most of us on here wont be trying 10 different sets of springs until we get the right set that offsets weight balance. The purpose of my personal build is to stay within the boundaries of most enthusiast's budget and capabilites.

Zeto · 04-14-2009, 12:39 PM

Quote:

Originally Posted by DDMotorsports

If you're building a full race car then yes. Most of us on here wont be trying 10 different sets of springs until we get the right set that offsets weight balance. The purpose of my personal build is to stay within the boundaries of most enthusiast's budget and capabilites.

shabarivas · 04-14-2009, 05:20 PM

Honestly... every pound you save on a 3000lb car on the wheels is tantamount to about 1whp. Going from stock 19's to Volk CE's on my G35 made a bigger difference in speed than all the intake mods I ever did... Just food for thought...

RCZ · 04-15-2009, 09:52 PM

hmm...that's rotational mass on the wheels. They are talking about sprung weight...also your 1whp/lb is not all that accurate. Taking 40 pounds off the car doesn't feel like adding 40whp. Maybe more like .25whp/1lb I would believe.

shabarivas · 04-16-2009, 12:39 PM

Well I mean... taking 1lb off the cars rotational mass should be equivalent to about 1whp no?

Zeto · 04-16-2009, 11:54 PM

Just out of curiosity, has anyone taken out any of the extra safety requirements such as the air bags by the doors and whatnot?

travisjb · 04-17-2009, 12:04 AM

I'm planning on it... will prob have it done, so I don't have to reset computers and don't want to take the chance that I deploy them... if anyone wants to see what they look like, i've got pics up here, about 1/3 of way down the page
TravisJB Journal

Zeto · 04-21-2009, 01:51 AM

Did anyone weigh the stock intake compared to the Stillen long tube Gen 3?

vehl · 04-30-2009, 09:27 PM

I'm liking this thread.. the most relevant thread in the whole world..

Zeto · 05-03-2009, 05:22 PM

I have an idea. In the S2000's we were able to vent the hood. By venting I mean cutting the hood itself around the ribs and putting a mesh grill. Not only would this reduce weight but also release excess engine bay heat. Here's what I mean.

S2000 Forums -> The Vented Hood Club

I actually have a guy on LI who does this professionally. I had it done on my S and it worked and looked great.

travisjb · 05-03-2009, 08:21 PM

All we have to do on this car to vent is eliminate the wiper assembly and plastic cover... it opens up about a 2-3 inch gap next to the windshield and creates a lot of airflow

03-16-2009, 04:13 AM	#167 (permalink)
drisko Base Member Join Date: Jan 2009 Location: So Cal Age: 43 Posts: 160 Drives: 09 370Z PW Tour S 6M Rep Power: 16	Another really easy weight loss tip: drain all of your windshield washer fluid then add back just a little (in case you need it). Might be worth a good 8 lbs of weight savings or so...not really sure. OR, just remove that huge washer fluid reservoir altogether! I calculated my weight savings at around 80 lbs...and that includes new battery, no spare (keeping the subwoofer though), lighter tires, HF cats, lighter exhaust....but I am going to add an oil cooler (probably +8 lbs). Realistically, I'll also be running about 1/2 tank of gas...so I HOPE my total weight will be down around 3230 (I have touring with sport pckg). Last edited by drisko; 03-16-2009 at 04:18 AM.

03-23-2009, 04:21 PM	#168 (permalink)
M.Bonanni The370Z.com Sponsor Join Date: Nov 2008 Location: Las Vegas Posts: 2,575 Drives: Fast Rep Power: 1321	Started preparations for the upcoming time attack this weekend and weighed a lot more stock pieces. All of these pieces were removed in approx. 10 min. and can just as easily be put back once you are done with the track! Privacy shade thing out of the hatch area... Some of the trunk plastics... The rest of the trunk plastics/styrofoam... Weight that was bolted to the hatch... Location of said weight... Stock lug nuts = 3 lbs. Muteki open end lugs = 1 lb. The Muteki's are not recommended for the stock wheels though. __________________ MikeBonanni.com Twitter: http://www.twitter.com/MikeBonanni Facebook: http://www.facebook.com/MBonanni36 Function > Form Last edited by M.Bonanni; 03-23-2009 at 06:51 PM.

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04-14-2009, 05:20 PM	#172 (permalink)
shabarivas A True Z Fanatic Join Date: Apr 2009 Location: Sacramento, CA Posts: 2,188 Drives: 370z MB 6mt Rep Power: 914	Honestly... every pound you save on a 3000lb car on the wheels is tantamount to about 1whp. Going from stock 19's to Volk CE's on my G35 made a bigger difference in speed than all the intake mods I ever did... Just food for thought...

04-15-2009, 09:52 PM	#173 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	hmm...that's rotational mass on the wheels. They are talking about sprung weight...also your 1whp/lb is not all that accurate. Taking 40 pounds off the car doesn't feel like adding 40whp. Maybe more like .25whp/1lb I would believe.

04-16-2009, 12:39 PM	#174 (permalink)
shabarivas A True Z Fanatic Join Date: Apr 2009 Location: Sacramento, CA Posts: 2,188 Drives: 370z MB 6mt Rep Power: 914	Well I mean... taking 1lb off the cars rotational mass should be equivalent to about 1whp no?

04-16-2009, 11:54 PM	#175 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 40 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 267	Just out of curiosity, has anyone taken out any of the extra safety requirements such as the air bags by the doors and whatnot?

04-17-2009, 12:04 AM	#176 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 188	I'm planning on it... will prob have it done, so I don't have to reset computers and don't want to take the chance that I deploy them... if anyone wants to see what they look like, i've got pics up here, about 1/3 of way down the page TravisJB Journal

04-21-2009, 01:51 AM	#177 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 40 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 267	Did anyone weigh the stock intake compared to the Stillen long tube Gen 3?

04-30-2009, 09:27 PM	#178 (permalink)
vehl Base Member Join Date: Dec 2008 Location: asia Posts: 140 Drives: 370z PW/ GTI Rep Power: 16	I'm liking this thread.. the most relevant thread in the whole world..

05-03-2009, 05:22 PM	#179 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 40 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 267	I have an idea. In the S2000's we were able to vent the hood. By venting I mean cutting the hood itself around the ribs and putting a mesh grill. Not only would this reduce weight but also release excess engine bay heat. Here's what I mean. S2000 Forums -> The Vented Hood Club I actually have a guy on LI who does this professionally. I had it done on my S and it worked and looked great.

05-03-2009, 08:21 PM	#180 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 188	All we have to do on this car to vent is eliminate the wiper assembly and plastic cover... it opens up about a 2-3 inch gap next to the windshield and creates a lot of airflow