Spare tire well volume?

FoxMan · 02-10-2010, 03:30 PM

Has anyone calculated or measured the volume if you remove the spare? I searched and can't find anything.

speedfreak28 · 02-10-2010, 07:29 PM

asimple way to get a rough idea is to fill the well with packing peanuts and then put them in a square cardboard box and calcualte the displacement

bigaudiofanat · 02-10-2010, 08:03 PM

Or times length times width times depth.

speedfreak28 · 02-10-2010, 08:10 PM

the spare tire well isnt exactly a square

speedfreak28 · 02-10-2010, 08:20 PM

Another solution would be to have a local 370z owner allow me to glass them up a custom enclosure for the tire well.

Xan · 02-10-2010, 08:24 PM

Isn't it just a round hole? (don't have my 370 yet)

Then it would be : Pi*R^2*H

FoxMan · 02-10-2010, 10:48 PM

I highly doubt it's perfectly cylindrical, but I don't have a Z yet.

bigaudiofanat · 02-11-2010, 08:45 AM

Quote:

Originally Posted by speedfreak28

Another solution would be to have a local 370z owner allow me to glass them up a custom enclosure for the tire well.

How did I know that was coming.

vipor · 02-11-2010, 08:55 AM

The spare is an 18x4 wheel so I can guess that the tire well is probably 26 or so inches across..

3.14159 * 13^2 * 6 = 3,185.6in^3

3.14159 * (13/12)^2 * 0.5 = 1.84423ft^3

It's an estimate :P

bigaudiofanat · 02-11-2010, 09:31 AM

My head hurts after reading that. Not really thanks for the info.

ChrisSlicks · 02-11-2010, 12:26 PM

There is a ton of space down there if you pull everything out, especially those useless foam holders that hold the jack.

kenchan · 02-11-2010, 01:07 PM

Quote:

Originally Posted by FoxMan

Has anyone calculated or measured the volume if you remove the spare? I searched and can't find anything.

how about you measure your spare outside the car?

kdoske · 02-14-2010, 12:05 PM

Quote:

Originally Posted by speedfreak28

asimple way to get a rough idea is to fill the well with packing peanuts and then put them in a square cardboard box and calcualte the displacement

what a great trick.

dad · 02-14-2010, 12:40 PM

Quote:

Originally Posted by vipor

The spare is an 18x4 wheel so I can guess that the tire well is probably 26 or so inches across..

3.14159 * 13^2 * 6 = 3,185.6in^3

3.14159 * (13/12)^2 * 0.5 = 1.84423ft^3

It's an estimate :P

Try these measurements in the equitation:
Side wall-4.6, Radius-13.1, Diameter-26.1, Circumference-82.1

Spare Tire Size--- T145/80D17

sig11 · 02-15-2010, 11:48 AM

It's really simple:
Pi * Radius * Radius * Height = volume
3.14 * 13.1 in * 13.1 in * 5.71 in = 5617.101 in^3
The 5.71" came from the tire width of 145mm.

Unit conversion is the "hard part" but google makes it more brainless than a calculator:
search "5617.101in^3 to ft^3" answers: 3.25ft^3

02-10-2010, 03:30 PM	#1 (permalink)
FoxMan Base Member Join Date: Jan 2009 Location: Harvest, AL Posts: 25 Drives: 2010 370Z T/S 6SP Rep Power: 16	Spare tire well volume? Has anyone calculated or measured the volume if you remove the spare? I searched and can't find anything.

02-10-2010, 08:03 PM	#3 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 852	Or times length times width times depth. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

02-10-2010, 08:24 PM	#6 (permalink)
Xan A True Z Fanatic Join Date: Jan 2010 Location: MA Posts:99999999999999 Posts: 3,301 Drives: 370Z 40th Aniversary Rep Power: 24	Isn't it just a round hole? (don't have my 370 yet) Then it would be : PiR^2H __________________

02-11-2010, 08:55 AM	#9 (permalink)
vipor A True Z Fanatic Join Date: Aug 2009 Location: Euless, TX [ DFW ] Age: 41 Posts: 13,531 Drives: Nismo 09-0183 QAB Rep Power: 48	The spare is an 18x4 wheel so I can guess that the tire well is probably 26 or so inches across.. 3.14159 * 13^2 * 6 = 3,185.6in^3 3.14159 * (13/12)^2 * 0.5 = 1.84423ft^3 It's an estimate :P __________________ 2009 NISMO # 0193 \| QAB \| Albums! \| 05.04.10 (Dynojet) 291.94hp/248.28tq Oil Cooler (DIY) \| Custom Headlights \| GTSPEC Braces \| F.I. Long Tube Headers

02-11-2010, 09:31 AM	#10 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 852	My head hurts after reading that. Not really thanks for the info. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

02-10-2010, 07:29 PM	#2 (permalink)
speedfreak28 Base Member Join Date: Jul 2009 Location: south jersey Posts: 247 Drives: 05 ram, 79 z28 Rep Power: 15	asimple way to get a rough idea is to fill the well with packing peanuts and then put them in a square cardboard box and calcualte the displacement

02-10-2010, 08:10 PM	#4 (permalink)
speedfreak28 Base Member Join Date: Jul 2009 Location: south jersey Posts: 247 Drives: 05 ram, 79 z28 Rep Power: 15	the spare tire well isnt exactly a square

02-10-2010, 08:20 PM	#5 (permalink)
speedfreak28 Base Member Join Date: Jul 2009 Location: south jersey Posts: 247 Drives: 05 ram, 79 z28 Rep Power: 15	Another solution would be to have a local 370z owner allow me to glass them up a custom enclosure for the tire well.

02-10-2010, 10:48 PM	#7 (permalink)
FoxMan Base Member Join Date: Jan 2009 Location: Harvest, AL Posts: 25 Drives: 2010 370Z T/S 6SP Rep Power: 16	I highly doubt it's perfectly cylindrical, but I don't have a Z yet.

02-11-2010, 12:26 PM	#11 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 653	There is a ton of space down there if you pull everything out, especially those useless foam holders that hold the jack.

02-15-2010, 11:48 AM	#15 (permalink)
sig11 A True Z Fanatic Join Date: Jun 2009 Location: Detroit Posts: 1,294 Drives: 09 370Z Red Sport-MT Rep Power: 17	It's really simple: Pi * Radius * Radius * Height = volume 3.14 * 13.1 in * 13.1 in * 5.71 in = 5617.101 in^3 The 5.71" came from the tire width of 145mm. Unit conversion is the "hard part" but google makes it more brainless than a calculator: search "5617.101in^3 to ft^3" answers: 3.25ft^3

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