safe place to drill through firewall

safe place to drill through firewall

Postby JayDubya [OP] » May 5th 2010, 10:55pm

I wanna run a big ol' wire through the firewall for sub power. I'm out there poking around and getting dizzy, when it occurs to me that some of you here may have already pioneered a good spot. So I'm asking... Is there a known, "safe-from-drilling-into-anything-dangerous-or-costly", "easy-to-get-to-from-the-engine-compartment", place on the firewall in the left footwell area? From the engine bay, the area around the hood-release cable is bare, but under the dash, the cable disappears into no man's land. Who is going to save me some grief????
'99 Astro Mark III conversion hack job
Original Poster [OP]
JayDubya
Fueling (3/4 tank)
Fueling (3/4 tank)
Years of Membership: JayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full years
Posts: 81
Topics: 11
Joined: April 2010
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: RWD Hightop conv

  • Similar topics
    Replies
    Views
    Author
  • Is this Solar setup Safe for my Astro
    by Psyckosama » December 24th 2020, 9:42pm in Electrical
    6 Replies
    329 Views
    Last post by AstroWill View the latest post
    December 26th 2020, 2:39am
  • Harness Clip Rubbing Through
    by TBLBill » October 22nd 2020, 1:14pm in Electrical
    0 Replies
    258 Views
    Last post by TBLBill View the latest post
    October 22nd 2020, 1:14pm
  •  
    6
    35
    Last post by AstroSafari.com View the latest post
    April 15th 2021, 6:37pm

Re: safe place to drill through firewall

Postby LEVE » May 5th 2010, 11:12pm

Where will the sub amp(?) be located?
LEVE
Site Contributor
Site Contributor
Firing on 2 Cylinders (L2)
Firing on 2 Cylinders (L2)
Years of Membership: LEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full years
Posts: 1281
Topics: 18
Joined: March 2010
Location: On the Palouse
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: AWD 4.3L-W

Re: safe place to drill through firewall

Postby timelessbeing » May 5th 2010, 11:12pm

Where will your sub be?
2000 Astro AWD Passenger
4.3L CSFI V6 • 3.73 G80 • 4" OV lift • 30" AT tires
User avatar
timelessbeing
Firing on 5 Cylinders (L1)
Firing on 5 Cylinders (L1)
Years of Membership: timelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full years
Posts: 554
Topics: 38
Joined: March 2008
Location: Vancouver, BC, Canada
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: Lifted AWD 4.3

Re: safe place to drill through firewall

Postby webcat » May 6th 2010, 12:11am

mines a 2002 astro , if you drill through the fire wall you should use a sleeve around the drill bit so the bit dont go very far on the other side.
Theres E6000 glue bonding the wire to the hole so it dont bounce around and become frayed (home made grommet)
Attachments
IMG_4926.JPG
IMG_4926.JPG (102.27 KiB) Viewed 2376 times
User avatar
webcat
Firing on 3 Cylinders (L3)
Firing on 3 Cylinders (L3)
Years of Membership: webcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full yearswebcat has been a member for 12 full years
Posts: 2311
Topics: 253
Joined: September 2008
Gender: Male
Alias (AKA): Larry aka Rambo
Van Make/Model: Chevrolet Astro
Extra Info: g10 5.7L vortec

Re: safe place to drill through firewall

Postby JaxSPL » May 6th 2010, 12:46am

How big of wire you talking about? Where is your amplifier going to be located?

I ran my 4/0 under the van. Right down the frame and tried to tuck it away as much as possible form any moving parts in the engine area. It enters the van right by the driver side rear tire well.

Quick, simple, and don't have to worry about drilling into anything except the back floorboard.
"Installer's Nightmare" has officially come to life. Only 1 sub, but loud and clear.
Subwoofer enclosure designer. PM For More Info
User avatar
JaxSPL
Firing on 8 Cylinders (L1)
Firing on 8 Cylinders (L1)
Years of Membership: JaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full years
Posts: 837
Topics: 45
Images: 9
Joined: October 2009
Location: Jacksonville, Florida
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: 4.3L V6 SPL

Re: safe place to drill through firewall

Postby timelessbeing » May 6th 2010, 1:09am

JaxSPL wrote:How big of wire you talking about? Where is your amplifier going to be located?

I ran my 4/0 under the van. Right down the frame and tried to tuck it away as much as possible form any moving parts in the engine area. It enters the van right by the driver side rear tire well.

Quick, simple, and don't have to worry about drilling into anything except the back floorboard.


That's what I was thinking. You don't have to worry about hiding the wire inside the van.
2000 Astro AWD Passenger
4.3L CSFI V6 • 3.73 G80 • 4" OV lift • 30" AT tires
User avatar
timelessbeing
Firing on 5 Cylinders (L1)
Firing on 5 Cylinders (L1)
Years of Membership: timelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full years
Posts: 554
Topics: 38
Joined: March 2008
Location: Vancouver, BC, Canada
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: Lifted AWD 4.3

Re: safe place to drill through firewall

Postby Jasen » May 6th 2010, 2:07am

My amps are on the drivers side back by the wheel well. In the 2nd pic on the left you can see the front of the wheel well ImageImagevers side
I'm a Journeyman woodworker,
Every projects a journey man.

200k
Ultra gauge

Being a mad scientist IS NOT as easy as it look's on TV



Image
Jasen
Site Contributor
Site Contributor
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: Jasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full years
Posts: 7045
Topics: 260
Images: 101
Joined: July 2009
Location: Seattle, Wa
Gender: Male
Alias (AKA):
Van Model Year: 1997
Van Make/Model: Chevrolet Astro
Extra Info: AWD cargo Dutch door

Re: safe place to drill through firewall

Postby JayDubya [OP] » May 6th 2010, 3:13am

The amp is going to be in the cubby hole right ahead of the fuel filler behind the driver's seat. I haven't nailed down the exact location of the "Death Box" yet. You guys have got me thinkin' about just running it underneath & back up. For some reason, I didn't even consider it as an option, but it's just too simple to NOT do it that way. Thanks.
'99 Astro Mark III conversion hack job
Original Poster [OP]
JayDubya
Fueling (3/4 tank)
Fueling (3/4 tank)
Years of Membership: JayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full years
Posts: 81
Topics: 11
Joined: April 2010
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: RWD Hightop conv

Re: safe place to drill through firewall

Postby Jasen » May 6th 2010, 3:32am

I've got 3 RCA's, the remote wire, 14ga. and 16 ga. for the drivers door speakers, running under the door sill cover along with the OEM wiring, there ain't much room left for a 4ga. wire :lol:
I'm a Journeyman woodworker,
Every projects a journey man.

200k
Ultra gauge

Being a mad scientist IS NOT as easy as it look's on TV



Image
Jasen
Site Contributor
Site Contributor
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: Jasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full years
Posts: 7045
Topics: 260
Images: 101
Joined: July 2009
Location: Seattle, Wa
Gender: Male
Alias (AKA):
Van Model Year: 1997
Van Make/Model: Chevrolet Astro
Extra Info: AWD cargo Dutch door

Re: safe place to drill through firewall

Postby JayDubya [OP] » May 6th 2010, 3:51am

I was going to run 6 gauge, but I scored too good of a deal on a killer amp so I can't see starving it. I'll probably run 4 or 2 gauge.
'99 Astro Mark III conversion hack job
Original Poster [OP]
JayDubya
Fueling (3/4 tank)
Fueling (3/4 tank)
Years of Membership: JayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full years
Posts: 81
Topics: 11
Joined: April 2010
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: RWD Hightop conv

Re: safe place to drill through firewall

Postby timelessbeing » May 6th 2010, 4:10pm

Jasen's got the right idea there in the photo, except it's still too exposed for my liking. One stray rock and you have an electrical fire on your hands. I would put it more towards the inside, or tuck it in up higher OR perhaps through the subframe if that's possible.
2000 Astro AWD Passenger
4.3L CSFI V6 • 3.73 G80 • 4" OV lift • 30" AT tires
User avatar
timelessbeing
Firing on 5 Cylinders (L1)
Firing on 5 Cylinders (L1)
Years of Membership: timelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full yearstimelessbeing has been a member for 13 full years
Posts: 554
Topics: 38
Joined: March 2008
Location: Vancouver, BC, Canada
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: Lifted AWD 4.3

Re: safe place to drill through firewall

Postby LEVE » May 6th 2010, 4:16pm

Jasen's got the right idea there in the photo, except it's still too exposed for my liking.
I agree. May I suggest a cure? One thing you can do is use 1/2" ABS or PVC pipe as a conduit, as well as a cover for the wiring. It's easily worked with as well as very tough stuff. Just cut, fit, run the wire and then strap it to the underside of the body and it's going to keep the enclosed wiring free from nicks/cuts, dirt and debris. It's a whole lot better than plastic spiral wrap.
One stray rock and you have an electrical fire on your hands.
To counter this problem... fuse the line at the power source and the problem goes away.
LEVE
Site Contributor
Site Contributor
Firing on 2 Cylinders (L2)
Firing on 2 Cylinders (L2)
Years of Membership: LEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full yearsLEVE has been a member for 11 full years
Posts: 1281
Topics: 18
Joined: March 2010
Location: On the Palouse
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: AWD 4.3L-W

Re: safe place to drill through firewall

Postby Jasen » May 7th 2010, 3:22am

Thats as high as I could get my impact driver up there to drive in the screws.
I live the PVC idea. With a heat gun you could bend and mold it to fit nicely.
I'm a Journeyman woodworker,
Every projects a journey man.

200k
Ultra gauge

Being a mad scientist IS NOT as easy as it look's on TV



Image
Jasen
Site Contributor
Site Contributor
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: Jasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full yearsJasen has been a member for 11 full years
Posts: 7045
Topics: 260
Images: 101
Joined: July 2009
Location: Seattle, Wa
Gender: Male
Alias (AKA):
Van Model Year: 1997
Van Make/Model: Chevrolet Astro
Extra Info: AWD cargo Dutch door

Re: safe place to drill through firewall

Postby JaxSPL » May 7th 2010, 6:04am

I've thought about the PVC pipe, but at the time couldn't see trying to get one big enough to run 4/0 hidden good enough. Plus, one day the van will have a ICELED Ufo underbody kit (little over $900) under there.

I haven't had any problems with the way my wire is installed right now. It's been like this for 3+ years. Of course, welding cable has a pretty thick casing on it that is heat and oil resistant.

fuses? Who uses fuses? hehehe. I can't find a holder big enough for my wire so I haven't installed a fuse. Plus, I'd need to get a fuse of about 380 to 400amps.
"Installer's Nightmare" has officially come to life. Only 1 sub, but loud and clear.
Subwoofer enclosure designer. PM For More Info
User avatar
JaxSPL
Firing on 8 Cylinders (L1)
Firing on 8 Cylinders (L1)
Years of Membership: JaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full years
Posts: 837
Topics: 45
Images: 9
Joined: October 2009
Location: Jacksonville, Florida
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: 4.3L V6 SPL

Re: safe place to drill through firewall

Postby JayDubya [OP] » May 7th 2010, 7:01am

JaxSPL wrote: . I can't find a holder big enough for my wire so I haven't installed a fuse. Plus, I'd need to get a fuse of about 380 to 400amps.


http://www.amazon.com/Scosche-EWFH-Sing ... y_e_text_b

http://www.amazon.com/PACK-ANL-FUSES-GO ... 968&sr=1-5
'99 Astro Mark III conversion hack job
Original Poster [OP]
JayDubya
Fueling (3/4 tank)
Fueling (3/4 tank)
Years of Membership: JayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full yearsJayDubya has been a member for 10 full years
Posts: 81
Topics: 11
Joined: April 2010
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: RWD Hightop conv

Re: safe place to drill through firewall

Postby JaxSPL » May 7th 2010, 3:30pm

Thanks Jaydubya, but.. the holder will not hold 4/0 welding cable. May work for the op of the topic, but won't for me. My power wire is about as big round as a quarter, or bigger.
"Installer's Nightmare" has officially come to life. Only 1 sub, but loud and clear.
Subwoofer enclosure designer. PM For More Info
User avatar
JaxSPL
Firing on 8 Cylinders (L1)
Firing on 8 Cylinders (L1)
Years of Membership: JaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full yearsJaxSPL has been a member for 11 full years
Posts: 837
Topics: 45
Images: 9
Joined: October 2009
Location: Jacksonville, Florida
Gender: Male
Alias (AKA):
Van Make/Model: Chevrolet Astro
Extra Info: 4.3L V6 SPL

Re: safe place to drill through firewall

Postby 94 Van Guy » May 7th 2010, 3:57pm

Just a crazy thought,


4/0 cable with no fuse, OK, If there was ever a short, I don't think I would want anything that could burn if a short were to happen. PVC would be out IMO, but steel conduit would be all that I would use.

Like I said "Just a crazy thought." Keith
'91 Chevy G30 Bus 39.3K Miles


Retired
Safari
87 Safari, 91 Astro
86 Astro, 85 Astro
88 Astro, 92 Astro
89 Astro, 88 Astro

Image
User avatar
94 Van Guy
250k+ Miles
250k+ Miles
Firing on 5 Cylinders (L3)
Firing on 5 Cylinders (L3)
Years of Membership: 94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years94 Van Guy has been a member for 11 full years
Posts: 2538
Topics: 71
Images: 44
Joined: February 2010
Location: Salt Lake City, Utah USA
Gender: Male
Alias (AKA): Keith
Van Model Year: 1991
Van Make/Model: Chevrolet Astro
Extra Info: G30 Bus


 
  • Related topics
    Replies
    Views
    Last post

Return to Electrical

It is currently April 15th 2021, 6:37pm

Electrical Forum
ElectricalDiscussion specific to electric components of vans. Category for alternators or batteries, starters and ignition parts, anything 12v and electrical issue like fuses, circuitry, wire, terminals, switches, connectors, bulbs, relays, and wiring. Voltage and amperage diagnosis.
To create a new topic in Electrical, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
Attached by: GaryMacGuyver
GaryMacGuyver
in Electrical
Views: 66
Comments: 2
Date: Apr 10 '21
Time: 11:29am
» Read last comment
Attached by:
Attached by: stent
stent
in Electrical
Views: 1846
Comments: 36
Date: Apr 06 '21
Time: 11:08pm
» Read last comment
Attached by:
Attached by: stent
stent
in Electrical
Views: 1846
Comments: 36
Date: Apr 06 '21
Time: 9:58pm
» Read last comment
Attached by:
Ken2.7
in Electrical
Views: 1038
Comments: 33
Date: Apr 04 '21
Time: 2:38am
» Read last comment
Attached by:
Attached by: LumaWJ
LumaWJ
in Electrical
Views: 248
Comments: 4
Date: Apr 01 '21
Time: 8:38am
» Read last comment
Sponsors

Who is online

Users browsing this forum: No registered users and 16 guests