The 370Z Weight Reduction Thread

RCZ · 04-15-2009, 08:52 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, 11:39 AM

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

Zeto · 04-16-2009, 10:54 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 · 04-16-2009, 11:04 PM

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, 12:51 AM

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

vehl · 04-30-2009, 08:27 PM

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

Zeto · 05-03-2009, 04:22 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, 07:21 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

Zeto · 05-04-2009, 01:04 AM

Quote:

Originally Posted by travisjb

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

I agree Travis but personally I wouldn't do it since my Z will be a DD. Need those windshield wipers

RCZ · 05-03-2009, 09:19 PM

I really like those s2k vented hoods. I think they look great, but it rains an awful lot here in FL.

ZforMe · 05-03-2009, 09:51 PM

I took a look under my hood, seems like we can't do quite the style they did going on one side, but we have a decent spot in the front in the middle (biggest space available), could look cool. Who's good with photoshop?

Here are 2 pics i just took of the underside:

eXo5 · 05-03-2009, 10:06 PM

Another good way to gain horse power from losing weight is to run on a treadmill. Cutting 10 pounds from your waistline is sure to help!

Fatties!

wstar · 05-04-2009, 01:04 AM

Simple venting like that S2K thread sounds prone to rain problems though. I don't want a storm pouring through the hole in my hood and soaking my pulleys or the electronics.

Zeto · 05-04-2009, 01:10 AM

Actually, no one ever had any water problems. I had my vented hood for over a year and I live in NJ. I never saw water in my engine bay. I'm just theorizing here but I'm thinking that the water droplets evaporated as soon as they hit the mesh. It's very hot and you could actually see the heat rising from the vents. I'm going to try this when I get back in a month or so. I think the most heat would come from the exhaust manifold. Anyone else think different?

miguez · 05-04-2009, 03:47 AM

Hey Zeto,

I don't think there would be enough heat to evaporate a strong downpour, even when you see heating rising from those vents.

That being said, I believe a lot of water (perhaps "a lot" is a relative term) makes its way into the engine bay in any car, during rainy days, be it through the air intakes (and around the radiator), or from the bottom. This is a guess, though, as I have never opened my hood after getting home from driving through a storm to check.

05-03-2009, 10:06 PM	#12 (permalink)
eXo5 Enthusiast Member Join Date: Apr 2009 Location: delaware Posts: 368 Drives: skateboard w/ NAWWWZ Rep Power: 673	Another good way to gain horse power from losing weight is to run on a treadmill. Cutting 10 pounds from your waistline is sure to help! Fatties! Kaminari Kuro and ChaseZ like this. __________________ Remember kids, NAWZ energy drink will not make your car go faster.

05-04-2009, 01:04 AM	#13 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	Simple venting like that S2K thread sounds prone to rain problems though. I don't want a storm pouring through the hole in my hood and soaking my pulleys or the electronics. __________________ 7AT Track Car! Journal thread / Car setup details

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04-15-2009, 08:52 PM	#1 (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, 11:39 AM	#2 (permalink)
shabarivas A True Z Fanatic Join Date: Apr 2009 Location: Sacramento, CA Posts: 2,188 Drives: 370z MB 6mt Rep Power: 915	Well I mean... taking 1lb off the cars rotational mass should be equivalent to about 1whp no?

04-16-2009, 10:54 PM	#3 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 41 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 268	Just out of curiosity, has anyone taken out any of the extra safety requirements such as the air bags by the doors and whatnot?

04-16-2009, 11:04 PM	#4 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	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, 12:51 AM	#5 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 41 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 268	Did anyone weigh the stock intake compared to the Stillen long tube Gen 3?

04-30-2009, 08:27 PM	#6 (permalink)
vehl Base Member Join Date: Dec 2008 Location: asia Posts: 140 Drives: 370z PW/ GTI Rep Power: 17	I'm liking this thread.. the most relevant thread in the whole world..

05-03-2009, 04:22 PM	#7 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 41 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 268	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, 07:21 PM	#8 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	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

05-03-2009, 09:19 PM	#10 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	I really like those s2k vented hoods. I think they look great, but it rains an awful lot here in FL.

05-03-2009, 09:51 PM	#11 (permalink)
ZforMe Base Member Join Date: Jan 2009 Location: Memphis TN Posts: 238 Drives: 370Z Sport Auto PG Rep Power: 17	I took a look under my hood, seems like we can't do quite the style they did going on one side, but we have a decent spot in the front in the middle (biggest space available), could look cool. Who's good with photoshop? Here are 2 pics i just took of the underside:

05-04-2009, 01:10 AM	#14 (permalink)
Zeto Track Member Join Date: Apr 2009 Location: North NJ Age: 41 Posts: 766 Drives: 09 Pearl White 370Z Rep Power: 268	Actually, no one ever had any water problems. I had my vented hood for over a year and I live in NJ. I never saw water in my engine bay. I'm just theorizing here but I'm thinking that the water droplets evaporated as soon as they hit the mesh. It's very hot and you could actually see the heat rising from the vents. I'm going to try this when I get back in a month or so. I think the most heat would come from the exhaust manifold. Anyone else think different?

05-04-2009, 03:47 AM	#15 (permalink)
miguez Enthusiast Member Join Date: Apr 2009 Location: Columbus, Ohio Posts: 359 Drives: '04 Cavalier Rep Power: 182	Hey Zeto, I don't think there would be enough heat to evaporate a strong downpour, even when you see heating rising from those vents. That being said, I believe a lot of water (perhaps "a lot" is a relative term) makes its way into the engine bay in any car, during rainy days, be it through the air intakes (and around the radiator), or from the bottom. This is a guess, though, as I have never opened my hood after getting home from driving through a storm to check.