Weight reductions for the G35 coupe - 6MT.net Infiniti G35/G37/GTR Forums
User Tag List

Reply
 
LinkBack Thread Tools
post #1 of 28 Old 04-02-2006, 07:33 PM Thread Starter
Over 1,000 Posts
 
AustinG35's Avatar
 
Join Date: Sep 2004
Location: Austin, TX
Posts: 1,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Default Weight reductions for the G35 coupe

Apologies if this has been posted previously, but thought that this was an interesting read. I found some interesting G35 coupe weight reduction tips here: http://forums.freshalloy.com/ubbthre...b=5&o=&fpart=1

Here are some weight reductions options (loosely taken from al503, Russ3Z, Dr Dave, and Eagle1 and edited into 1 single post):
Some weight reduction suggestions from $0 out of pocket to a lot of $$$ in very rough order.
- Remove the plenum and battery cover. ~4 lbs. (3520 lbs)

- Remove the spare tire and associated tools (you'll never need it UNTIL after you take them out.) ~45 lbs. (3475 lbs)

- Remove the back seat if you never use the rear seat, and don't mind how it looks inside without it, remove it. It'll save you about 36 lbs. (3439 lbs)

- Replace the OEM front seats: The Sparco Milano seats dropped about 80lbs here, and they not only are comfortable with their adjustable rake backs and adjustable lumbar features, but you do not go sliding all over the place on a track or in tight corners, so this allows you to relax your shoulders and legs and concentrate on working pedals and steering, rather than bracing yourself, so your control inputs are more precise and smooth and quick. (3359 lbs)

- Replace OEM battery with a lightweight battery. You have a couple of choices here. Go with a lightweight battery from Optima and save about 11 lbs. Go with a super lightweight Odyssey and you can save more than 20. More importantly, you're reducing weight in the nose of the car. (3339 lbs)

- Replace the OEM pulleys. You can save about 5 lbs of rotational weight. Rotational weight is the best to get rid of as each lb you remove you get to multiply. I've heard of everything from x2 to x7. (3334 lbs)

- Replace the OEM exhaust. GReddy SP2 will save you about 21 lbs. A TI single exhaust (y-pipe back) like the JIC can save you about 55 lbs. Cost is an issue here as you will probably have to spend approximately $1200. A hybrid steel/TI single exhaust will save you about 35-40 lbs and split the difference in cost. (3279 lbs)

- Replace OEM flywheel and clutch. You can go absurdly light here saving anywhere from 11 lbs with the Nismo to close to 30 lbs with the lighter ones like the Tilton, however, you may experience "chatter" while idling once the OEM flywheel is replaced. Again, this is rotational weight, which is multiplied and its in the nose of the car. (3249 lbs)

- Replace OEM rims and tires. Lightweight 18" rims can weigh as little as 17 lbs each. The OEM rims and tires are around 24 lbs each. That's a total weight reduction of 49 lbs. The tires tested in C&D differed in weight by up to 3 lbs. That could be an additional 12 lbs of rotational weight multiplied. Pilot sport PS2's are 22 lbs each which are lighter than the RE050A's. (3188 lbs)

- Lightweight rotors. You can get Stoptech rotors and replace the Brembos that will save you a total of around 10 lbs. of rotational weight. (3178 lbs)

- Replace OEM components with Carbon Fiber. I'm hesitant to list carbon fiber as the weight savings in the hood and rear deck is very little (compared to the cost) but you could probably save about 10 to 15 lbs. The stock aluminum hood is already very light. You'll save more weight with a lightweight battery at 20% of the cost of a decent CF hood. If you're doing it for both the weight and looks, not a bad mod. Expect to pay $500+ for a good quality CF hood. CF Door on the otherhand, will save you about 35lbs on each side. (3093 lbs)

So, if you take the average of the weight savings and using a x4 for the rotational weight, you can effectively drop around 500 lbs and most of the vehicle still appears somewhat stock (even the interior save for the seats.) Lets say the stock coupe weighs 3500 and has 298 hp. That’s a power-to-weight ratio of 11.82. (Each pony has to motivate 11.82 lbs.) If you reduce the weight of the coupe to 3093, your power to weight is 10.37. For an idea of what that means the BMW M3’s power-to-weight ratio is about 9.8.

Besides the improvements in acceleration, you’ll also get these side effects (benefits):
1. Better fuel economy and longer tire life.
2. Better skidpad performance.
3. Better braking.
4. Less wear and tear for the car as a whole.

'04 G35 Coupe 6MT|brushed-aluminum pedals|clear corners|escutcheon mod|Polished intake/plenum/spacer|NRG Hood dampers|JDM brake fluid cover|20" TSW Snetterton rims|R1 Concepts CD rotors|PIAA lighting
AustinG35 is offline  
Sponsored Links
Advertisement
 
post #2 of 28 Old 04-02-2006, 07:34 PM Thread Starter
Over 1,000 Posts
 
AustinG35's Avatar
 
Join Date: Sep 2004
Location: Austin, TX
Posts: 1,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Default

Besides dieting, anyone else have any other ideas for weight reduction on the G35 not listed above?

'04 G35 Coupe 6MT|brushed-aluminum pedals|clear corners|escutcheon mod|Polished intake/plenum/spacer|NRG Hood dampers|JDM brake fluid cover|20" TSW Snetterton rims|R1 Concepts CD rotors|PIAA lighting
AustinG35 is offline  
post #3 of 28 Old 04-02-2006, 07:56 PM
Over 1,000 Posts
 
Funner567's Avatar
 
Join Date: Mar 2006
Location: LA bitches
Posts: 2,447
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to Funner567
Default

awsome, such easy ways to do it! i think im pulling out the spare!
Funner567 is offline  
 
post #4 of 28 Old 04-02-2006, 09:55 PM
Over 25,000 Posts
 
superdude's Avatar
 
Join Date: Jan 2006
Location: NJ, PA
Posts: 25,159
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to superdude
Default

yea there are some good ideas in there
superdude is offline  
post #5 of 28 Old 04-02-2006, 10:00 PM
Over 2,500 Posts
 
jayelleseven's Avatar
 
Join Date: Oct 2005
Location: SoCal
Posts: 4,967
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

some good ideas but some are riduculous for the amount of weight u save.. Too much trouble and some if not done right, jeopordize the cars overall perfomance.. I say DIET if youre under 6ft tall and over 180-90 lbs :]

got no smile and lack a lavish lifestyle but its cool cuz I came up hungry, jus a lil Latino tryin to make it and when I make it.. I promise the world wont lightly take it.
jayelleseven is offline  
post #6 of 28 Old 04-02-2006, 10:01 PM
Over 25,000 Posts
 
superdude's Avatar
 
Join Date: Jan 2006
Location: NJ, PA
Posts: 25,159
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to superdude
Default

im under 6 ft tall and more then 190lbs!
superdude is offline  
post #7 of 28 Old 04-02-2006, 10:07 PM
Over 100 Posts
 
Lrpba300's Avatar
 
Join Date: Jul 2005
Location: Colo. Spgs. CO
Posts: 222
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

Quote:
Originally Posted by AustinG35
Besides dieting, anyone else have any other ideas for weight reduction on the G35 not listed above?
Make sure you always have less than 1/2 a tank of gas. Full tank of gas weights a lot!

Sorry folks! I turned trader and went w/ another makers SUV. (i do love it though!) Local Infiniti dealer wouldn't deal!
Lrpba300 is offline  
post #8 of 28 Old 04-03-2006, 12:06 AM
Over 2,500 Posts
 
jayelleseven's Avatar
 
Join Date: Oct 2005
Location: SoCal
Posts: 4,967
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

Quote:
Originally Posted by Lrpba300
Make sure you always have less than 1/2 a tank of gas. Full tank of gas weights a lot!

Very true, i always do that, yet its to avoid speeding, yahknow when the gas light comes up, u wont be floorin it at the next green light.. hey, helped avoid citations after havin attained 3 the 1st yr i had my license

got no smile and lack a lavish lifestyle but its cool cuz I came up hungry, jus a lil Latino tryin to make it and when I make it.. I promise the world wont lightly take it.
jayelleseven is offline  
post #9 of 28 Old 04-03-2006, 12:08 AM
Over 2,500 Posts
 
NJG35's Avatar
 
Join Date: Feb 2005
Location: New Jersey
Posts: 3,131
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

I don't have my spare took that b*tch out a long time ago...this is a really great write-up though! Very easy things that I never thought about

05' G35 Coupe |Black/Black|

"I'll rather push than to be pulled, RWD baby!!!"
NJG35 is offline  
post #10 of 28 Old 04-03-2006, 09:55 AM Thread Starter
Over 1,000 Posts
 
AustinG35's Avatar
 
Join Date: Sep 2004
Location: Austin, TX
Posts: 1,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Default

Quote:
Originally Posted by Lrpba300
Make sure you always have less than 1/2 a tank of gas. Full tank of gas weights a lot!
Yeah, forgot to throw that one in as well. That should be a given when racing.

'04 G35 Coupe 6MT|brushed-aluminum pedals|clear corners|escutcheon mod|Polished intake/plenum/spacer|NRG Hood dampers|JDM brake fluid cover|20" TSW Snetterton rims|R1 Concepts CD rotors|PIAA lighting
AustinG35 is offline  
post #11 of 28 Old 04-03-2006, 12:28 PM
Over 10,000 Posts
 
gammawolf's Avatar
 
Join Date: Jun 2005
Location: L.A. - S.D. and everything in between
Posts: 14,068
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

Good write up!

If I went to the track I'd remove the spare and tools, but I've always been an overly cautious character and rather be safe than sorry with the spare when not in race mode. I had no idea the cover weighed as much as it did! Lastly, you just listed another reason why I need to get wheels.

"The Road is better than the end." -
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Gammawolf - Made in America with Mexican Parts.
gammawolf is offline  
post #12 of 28 Old 04-04-2006, 09:15 PM
Over 2,500 Posts
 
Neal376's Avatar
 
Join Date: May 2005
Posts: 3,155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to Neal376
Default

++1 replace spare with tire hole patch maker thingy

07s 6mt
Neal376 is offline  
post #13 of 28 Old 04-04-2006, 09:40 PM
Over 2,500 Posts
 
Neal376's Avatar
 
Join Date: May 2005
Posts: 3,155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to Neal376
Default

ohh, and Stillen Z Tube, or Carbon Fiber Z Tube...Remove Water catch can...remove AC...remove interior trim...lighter tires...remove floor mats (rubber floor mats = 20 lbs!)


there is always more

07s 6mt
Neal376 is offline  
post #14 of 28 Old 04-08-2006, 09:59 PM
Over 250 Posts
 
black06g35's Avatar
 
Join Date: Apr 2006
Location: OC, CA
Posts: 252
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to black06g35
Default

the best weight to lose in any car is easily done, although very time consuming

1. remove all interior peices including: seats, center console, door panels, rear seat panels, trunk liner, etc.....
2. remove all carpeting
3. get out your favorite scraper and have fun. remove all the jude backing and sound silencer stuff glued to the inside of the body under all the carpeting.

doing this on my heavily mdded 2003 cobra helped me lose close to 100pds. yes, all that work (about a day and half) and my ets dropped from average 10.98 to 10.90...

its worth it in a strip/street car, but imho not in a $40K luxury car...
but you know what they say...what ever melts your butter.
black06g35 is offline  
post #15 of 28 Old 04-08-2006, 10:13 PM
Over 25,000 Posts
 
superdude's Avatar
 
Join Date: Jan 2006
Location: NJ, PA
Posts: 25,159
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to superdude
Default

whatever melts your better eh?
superdude is offline  
Sponsored Links
Advertisement
 
Reply

  6MT.net Infiniti G35/G37/GTR Forums > Racing Discussion > Racing


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
a COUPE tried ME! SmokeG305 Racing 10 04-09-2006 02:22 PM
Need some G35 Coupe MT's advise!! Jack06 G35 Coupe 20 07-23-2005 02:48 PM
Good Springs to get for 05 G35 coupe w/ sport suspension&quo AirAlex85 G35 Coupe 10 07-19-2005 11:48 AM
weight distribution of the coupe Loaded God Complex G35 Coupe 6 07-14-2005 12:10 AM
17" Sedan vs 18" coupe rims.. Weight??? bizz General Discussion 2 09-15-2004 08:18 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome