Hello guys,

I have been trying to find info on the lightest G35s out there for a while, but I can't find it anywhere.

What are the lowest curb weights of the gutted/track prepped Gs out there?

I just weighed my G a few days ago, and even with a TS cf hood, sparco seats, lightweight flywheel/clutch, aftermarket exhaust, no spare, no windshield tank, wire tucked engine with no extra metal compartments, 2 piece volks, lighter coilovers... I'm still at 3480#s per an official DOT scale.

I am doing an LS6 swap, but I'm worried because although I'll be happy with 400ish wph, handling wise I'm still faaaar away from the curb weight of a stock c6, which is around 3200-3300...and I haaaate the G's heavy butt around the corners....

Balance wise, the LS is only 40lbs heavier and I will take care of the ft/rear weight ratio by moving battery to the trunk, so I'm not too worried there. LS also sits lower and closer to the firewall, so that helps.

Next step for me will be doing rear seats (-36lbs), lw battery (-30lbs), and then comes the partial gutting/scrapping sound deadening and all that good stuff... of course in the future tube chassis and full cage which then calls for no ac and all of the luxury aspects that just plain weigh the car down, but that's later on.

I would like to know where I could get the car down to... it would be amazing to hit the 2,9XX lbs mark! So I would like to know how low I will be able to get the G once I get crazy with it...

Please don't tell me get a Z, get a track car, don't do it that to the G,etc... If that's your comment leave the Motorsports section, and go back to Media Share

 

Isn't the curb weight 3495 stock? How did you only lose 15lbs?

I mean, I guess it depends on how weird your willing to get. Like you said, the ac, interior (including removing the dash, carpet, stereo, seats, headliner, etc), power steering. Some even run no alternators. I've got a buddy with a 2700lb 67 dart swinger and that things just a skeleton and engine. Runs 10s, but it's strictly a drag car. I would imagine we could get down to that if an old full steel car can. How weird are you willing to go? Haha

 

Hey,

The curb weights from factory are not very accurate, the only way to really tell is to weigh a specific car bone stock and then after all of the changes. Even the different version (base, fully loaded, etc) are different weights....
I know I can actually tell the difference with the car as it sits now, it feels lighter, but unfortunately I don't have the before/after weight comparison.

I am willing to get really weird with it lol, but that depends on how much I can really get to if I go all out.

 

So I found out that the K&N Time Attack Widebody G35, completely gutted, cf doors, many parts replaced by aero grade material, pretty much anything that could go, went.... weighs in at < 2800 lbs.

Pretty awesome

 

get rid of the sunroof, all of the audio equipment, speakers, navi, carpet

 

Damn. Theoretically that should shave off about 7/10 of a second on your 1/4 mile time. Pretty flipping sweet.

 

The AC compressor weighs a nice chunk

 

^agreed Jeff, if I can ever convince myself to turn this in a track dedicated car, that will go in a sec

Gdirty5 - Agreed, but the most beneficial would be the handling. Shaving 1/4 mile time can easily be done by adding FI, but battling the G's 3600lb monster weight is more complicated.

Racercris - Those are valid options, but there are far more effective ways to shave pounds prior to those items, and which will cost and affect convenience factor less. Navi is a good option tho.


Weight reduction part by part threads are common here, what I'm trying to gather is info on the weight of track prepped cars, such as Kparlett, Zach@RareJMD, etc

 

I'd say the best way to reduce lap time is becoming a better driver. Or upgrading the suspension. Unless your willing to gut the car, you won't be able to get the weight down much.

 

oh man, my favorite topic.

Here's most of the things I've done so far:

• Trial titanium exhaust & Tomei y pipe -38lbs
• Tillett B1 seats & brackets -65lbs
• Deka battery -19lbs
• ACT prolite flywheel -15lbs
• engine bay brackets/wiretuck -10lbs
• UR pulleys -5lbs
• idler pulley removed -5lbs
• CF driveshaft -14lbs
• rear seats -50lbs??
• rear seat belts and brackets ????lbs
• strip the trunk at the track ????lbs

Below is one of the two new Tillett B1 seats (10lbs each) I'm installing instead of my Rottec sGT3 seats (15.8lbs each). I'm also not happy with how heavy my pass side slider/bracket is (16lbs!!) so I've ordered a different design that should save 5lbs or so.



I'm also working with someone on making a full CF roof replacement to get rid of that heavy sunroof. Also next track season my rotors will need replacing so Girodisc 2 piece rotors will be ordered as they are by far the lightest of the options available for the brembo G/Z

 

Row has the right idea. Every little bit helps (including your own human weight). Every 100lbs of weight reduction is a 1/10 second off of your 0-60/.25mile. Obviously, that depends on your driving ability, but 1/10 of a second per 100lbs is the rule. If you could get it down to 2800lbs, you should theoretically be able to beat an sti or 335i without even touching your motor.

 

Thanks and to your point every little bit gets you further down. 5lbs might not seem like much, but if you can find 5lbs here and 5lbs there it begins to add up pretty quickly. To me the really entertaining engineering challenge is how to remove that weight without impacting the NVH of the car excessively. It's almost like building a GT3 or CSL version of the G that infinite never did.

Also I forgot, switching to ART test pipes and removing the the catalytic converter support bracket saves ~15lbs.

 

lol didn't u jus sell some art pipes a little while ago?

 

haha, nice catch , yes I did. I tried them and 15lbs was the resulting weight loss, but they rasped like crazy with the Trial Titanium exhaust. It was so bad I literally thought I didn't tighten some bolts.

I just mentioned it, to point out the stock cats are heavy

 

Maybe you should go on a diet your self