Weight Reduction

justin_boy · 11-26-2020, 01:55 PM

Hey guys,
I'm working on stripping some weight from the z and wondering if any of you guys have weighed your z's and what your'e weighing in at against whp

i have 317 to the wheel and installing some parts hoping to get it up in the 330's, and hoping to come in around 3,000 with a full tank of gas, is that possible without really gutting it?

google search says approx 3250 but z1 motorsports said in a video they come stock around 3400-3450 depending on options

i have not weighed mine yet and was waiting until i had seats/rollcage put in

thank you!

btw searched the forum and all i found was the OG thread from 09'

cv129 · 11-26-2020, 02:22 PM

Mine is about 3600 ish with 150lbs driver, all fluids, maybe a 1/2 or 1/4 tank gas. 09 Nismo OEM manual cloth seats. Spare donut was in the trunk. 3400 range sounds about right.

Stickied thread here

The 370Z Weight Reduction Thread

Spooler · 11-26-2020, 08:31 PM

3250 is not happening without gutting the car. That is not realistic to expect otherwise.

Hotrodz · 11-27-2020, 11:11 AM

A bunch of people posted their corner weights in this thread. I was at 3450 with the rear hatch gutted and a full tank and me in the car.

Aero and Suspension Tuning With True Type Coilovers

DarkJak · 11-27-2020, 11:59 AM

A lot of the weight also would also have to come from the rear of the car, making the 53/47 weight distribution even worse.

3000 lbs requires gutting the car.

justin_boy · 11-28-2020, 11:42 AM

Quote:

Originally Posted by DarkJak

A lot of the weight also would also have to come from the rear of the car, making the 53/47 weight distribution even worse.

3000 lbs requires gutting the car.

hmm good point, didn't even think about the distribution

justin_boy · 11-28-2020, 11:42 AM

Quote:

Originally Posted by Spooler

3250 is not happening without gutting the car. That is not realistic to expect otherwise.

i think i knew that i just needed to hear it

justin_boy · 11-28-2020, 11:43 AM

Quote:

Originally Posted by cv129

Mine is about 3600 ish with 150lbs driver, all fluids, maybe a 1/2 or 1/4 tank gas. 09 Nismo OEM manual cloth seats. Spare donut was in the trunk. 3400 range sounds about right.

Stickied thread here

The 370Z Weight Reduction Thread

dang makes sense, was hoping it was a little lighter

justin_boy · 11-28-2020, 11:44 AM

Quote:

Originally Posted by Spooler

3250 is not happening without gutting the car. That is not realistic to expect otherwise.

i know that now lol

victorofhavoc · 12-09-2020, 03:24 PM

gutted car here, with no headlights, a half cage, and everything superfluous removed. All track items needed (surge, baffled oil pan, etc) done, and car weighs 3010 lbs wet on the scale at my home track.

justin_boy · 12-09-2020, 04:57 PM

Quote:

Originally Posted by victorofhavoc

gutted car here, with no headlights, a half cage, and everything superfluous removed. All track items needed (surge, baffled oil pan, etc) done, and car weighs 3010 lbs wet on the scale at my home track.

oh wow...thanks for that, that really helps me out. any pics?

victorofhavoc · 12-09-2020, 10:21 PM

Quote:

Originally Posted by justin_boy

oh wow...thanks for that, that really helps me out. any pics?

Unfortunately not many decent photos yet. I bought the car mostly built from another member. I'm working on a splitter and detailing it out with photos in another thread in this same forum. Once that's done I'm going to de-livery the rest of it and then get some better photos. Hopefully I'll get some out on track soon

.

I do expect the splitter setup to add about 25 pounds. I believe there's about 15 pounds of hardware I have in total right now for a rigid support and the carbon splitter should be around ten pounds I'm guessing. Cutting some big louvres into the hood would definitely reduce weight though

Whjaxn17 · 12-10-2020, 02:14 PM

Quote:

Originally Posted by victorofhavoc

Unfortunately not many decent photos yet. I bought the car mostly built from another member. I'm working on a splitter and detailing it out with photos in another thread in this same forum. Once that's done I'm going to de-livery the rest of it and then get some better photos. Hopefully I'll get some out on track soon

.

I do expect the splitter setup to add about 25 pounds. I believe there's about 15 pounds of hardware I have in total right now for a rigid support and the carbon splitter should be around ten pounds I'm guessing. Cutting some big louvres into the hood would definitely reduce weight though

I wouldn't bank on it being a net loss in weight, but Trackspec makes some very nice hood vents for our cars

victorofhavoc · 12-10-2020, 02:53 PM

Quote:

Originally Posted by Whjaxn17

I wouldn't bank on it being a net loss in weight, but Trackspec makes some very nice hood vents for our cars

Thanks! I'll take a look at them. I've been talking to verus engineering about their louvres. I've got them on my gti and they make a 350z kit that shouldn't be too different from 370z in cfd analysis.

From initial look it looks like trackspec louvres don't have wickers. Wonder if they have an option to add or if there's an easy way to add myself? The verus ones just slide in from the bottom, and they do make a big difference.

Jmatchley86 · 12-12-2020, 08:53 PM

The trackspec ones work very well. I have them on my car and it solved my heat issue.

11-26-2020, 01:55 PM	#1 (permalink)
justin_boy Track Member Join Date: May 2015 Location: woodland hills Posts: 600 Drives: z34 Rep Power: 8367	Weight Reduction Hey guys, I'm working on stripping some weight from the z and wondering if any of you guys have weighed your z's and what your'e weighing in at against whp i have 317 to the wheel and installing some parts hoping to get it up in the 330's, and hoping to come in around 3,000 with a full tank of gas, is that possible without really gutting it? google search says approx 3250 but z1 motorsports said in a video they come stock around 3400-3450 depending on options i have not weighed mine yet and was waiting until i had seats/rollcage put in thank you! btw searched the forum and all i found was the OG thread from 09'

11-26-2020, 02:22 PM	#2 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,222 Drives: 09 Nismo, 16 Nismo Rep Power: 163995	Mine is about 3600 ish with 150lbs driver, all fluids, maybe a 1/2 or 1/4 tank gas. 09 Nismo OEM manual cloth seats. Spare donut was in the trunk. 3400 range sounds about right. Stickied thread here The 370Z Weight Reduction Thread __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield Last edited by cv129; 11-26-2020 at 02:32 PM.

11-26-2020, 08:31 PM	#3 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,797 Drives: 2013 Nismo 370z Rep Power: 2684392	3250 is not happening without gutting the car. That is not realistic to expect otherwise. Hotrodz likes this.

11-27-2020, 11:11 AM	#4 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	A bunch of people posted their corner weights in this thread. I was at 3450 with the rear hatch gutted and a full tank and me in the car. Aero and Suspension Tuning With True Type Coilovers Rusty and Spooler like this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

11-27-2020, 11:59 AM	#5 (permalink)
DarkJak A True Z Fanatic Join Date: Jun 2011 Location: Madison, WI Posts: 1,397 Drives: 2009 370Z Rep Power: 16804	A lot of the weight also would also have to come from the rear of the car, making the 53/47 weight distribution even worse. 3000 lbs requires gutting the car. __________________ @stupidtoycars \| My track vids 09 7AT\|MCS 2WNR\|Topgunz Rotrex\|Ecutek (Eugene)\|Maxxis RC1\|Titan-7 TS-5\|OSG LSD\|Rear Mount Derale Oil Cooler (WIP)+25 Trans Cooler\|Fismo\|G-LOC R12/R10\|Zeta III L\|NLR Wing and Splitter\|CJM Pan and Fuel Hat\|Radium Surge Tank\|AP Racing CP9668

12-09-2020, 03:24 PM	#10 (permalink)
victorofhavoc Base Member Join Date: Oct 2011 Location: Kansas City Posts: 229 Drives: 2014 370z Rep Power: 14	gutted car here, with no headlights, a half cage, and everything superfluous removed. All track items needed (surge, baffled oil pan, etc) done, and car weighs 3010 lbs wet on the scale at my home track. andy_meng1024, Hotrodz and Brendan like this. __________________ Had a 2010 WRX- boy was it quick in a straight line, got a 2014 Z- man is she grippy in the corners-- then left the Z and later got a GTI, now back in an 09 racecar Z!

12-12-2020, 08:53 PM	#15 (permalink)
Jmatchley86 Base Member Join Date: Jan 2017 Location: Fort Worth Posts: 159 Drives: 2011 370z 6MT Rep Power: 8	The trackspec ones work very well. I have them on my car and it solved my heat issue.

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