Wiring, Stereo & Electronics Audio Components | Radars | Alarms - and things that spark when they shouldn't

Power wire through firewall???

Thread Tools
 
Search this Thread
 
Old Jun 29, 2006 | 05:33 PM
  #1  
bigblueturtle's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2006
Posts: 59
Likes: 0
Default Power wire through firewall???

Where did you all find room to run power wire through the firewall?

Most likely I will be using 1/0 gauge with a Streetwires firewall bushing.
Reply
Old Jun 29, 2006 | 06:59 PM
  #2  
92SilverSHO's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Mar 2003
Posts: 1,162
Likes: 0
From: Bensalem, Pa, now montreal, Quebec
Default

ran mine through the passenger side.
Reply
Old Jun 30, 2006 | 01:23 AM
  #3  
Lethal_Ws6's Avatar
Banned
iTrader: (13)
 
Joined: Aug 2005
Posts: 179
Likes: 0
From: reno,NV
Default

Theres a grommet in the passenger side firewall , just under the pcm ....

Im using that one for my 4 guage power wire for my stereo, and also a few other power wires...
Reply
Old Jun 30, 2006 | 02:10 AM
  #4  
bigblueturtle's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2006
Posts: 59
Likes: 0
Default

Originally Posted by Lethal_Ws6
Theres a grommet in the passenger side firewall , just under the pcm ....

Im using that one for my 4 guage power wire for my stereo, and also a few other power wires...
Is this grommet big enough to pass a 1/0 cable through there, or will I have to down-size to 4 gauge?
Reply
Old Jun 30, 2006 | 01:35 PM
  #5  
WhiteRhino's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Nov 2001
Posts: 1,224
Likes: 0
From: NV
Default

I ran mine under the car and brought it up through the trunk. I drilled a hole to put it where I wanted it, but there is a couple grommets in the trunk area you can use.

It depends on where your putting your equipment on where to run the wire. I personally would never run a wire that size from the front to back inside the vehichle unless I didnt have a choice.
Reply
Old Jun 30, 2006 | 03:14 PM
  #6  
imnotplutonium's Avatar
TECH Resident
iTrader: (4)
 
Joined: Mar 2004
Posts: 869
Likes: 0
From: Houston,TX
Default

the grommet where the pcm is is large enough for whatever gauge. I ran my 2 gauge through there.... or 4 cant remember and there is still lots of room.
Reply
Old Jun 30, 2006 | 03:27 PM
  #7  
FSUNole17's Avatar
TECH Enthusiast
iTrader: (18)
 
Joined: Jan 2004
Posts: 620
Likes: 1
From: Franklin, TN
Default

Originally Posted by WhiteRhino
I ran mine under the car and brought it up through the trunk. I drilled a hole to put it where I wanted it, but there is a couple grommets in the trunk area you can use.

It depends on where your putting your equipment on where to run the wire. I personally would never run a wire that size from the front to back inside the vehichle unless I didnt have a choice.
Man id be careful with that, either wrap some wire loom all along the wire exposed to the elements or just dont drive in the rain or snow.... thats kinda dangerous if you ever have that rubber seal break
Reply
Old Jul 1, 2006 | 01:52 AM
  #8  
RUNINHOT's Avatar
Launching!
iTrader: (10)
 
Joined: Feb 2006
Posts: 231
Likes: 0
From: Ruston,LA
Default

I ran a 1/0 through passenger side firewall and along side of door to trunk. Can not tell that its even there. Inside you dont have to worry about anything snagging something that big on out low cars.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jul 1, 2006 | 04:11 AM
  #9  
bigblueturtle's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2006
Posts: 59
Likes: 0
Default

Originally Posted by RUNINHOT
I ran a 1/0 through passenger side firewall and along side of door to trunk. Can not tell that its even there. Inside you dont have to worry about anything snagging something that big on out low cars.
Did you also use the gromment under the PCM to run the 1/0 cable through the firewall?

I was planning to run the cable along side the door as well, under the carpet.
Reply
Old Jul 1, 2006 | 09:41 PM
  #10  
RUNINHOT's Avatar
Launching!
iTrader: (10)
 
Joined: Feb 2006
Posts: 231
Likes: 0
From: Ruston,LA
Default

I ran through the existing hole, slightly enlarged with file. Then used auto sealing putty around wire and hole. Theres plenty of room under carpet, but you have to hold wite down in rear floorboard to keep it from walking toward foot area and making a hump.
Reply
Old Jul 1, 2006 | 10:21 PM
  #11  
02Z28LS1's Avatar
TECH Addict
iTrader: (2)
 
Joined: Jun 2004
Posts: 2,327
Likes: 2
From: Texas
Default

Originally Posted by FSUNole17
Man id be careful with that, either wrap some wire loom all along the wire exposed to the elements or just dont drive in the rain or snow.... thats kinda dangerous if you ever have that rubber seal break
no it's not....that's what fuses are for
Reply
Old Jul 2, 2006 | 10:49 AM
  #12  
FSUNole17's Avatar
TECH Enthusiast
iTrader: (18)
 
Joined: Jan 2004
Posts: 620
Likes: 1
From: Franklin, TN
Default

i know, but im just saying i would hate for him to have to run a whole new wire because he didnt do it right the first time, and if it wasnt fused then it would be more dangerous
Reply
Old Jul 2, 2006 | 01:05 PM
  #13  
WhiteRhino's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Nov 2001
Posts: 1,224
Likes: 0
From: NV
Default

I know you guys just care about me! I've ran every car I've ever done with 4 gauge or bigger under the car. I dont like the way big wire bulks up everything. Espcecially when your rewiring everything and have a group of wires to pull to the back.

Also, I didnt say it was fused, which it is. Only a complete moron wouldn't run any power wire like that and have a fuse or circuit breaker.

The wires I did pull into the car, like my e-cutout/fans, I drilled a hole from the inside out under the steering column. It comes in just above the carpet.
Reply




All times are GMT -5. The time now is 12:44 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE