Firewall/Airbox Hole, what to do with it?
03-21-2006, 09:13 PM
#1
Senior Member
Thread Starter
Join Date: Aug 2004
Location: Upstate New York
Posts: 708
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 SC Camaro
Engine: 305 TBI
Transmission: 700-R4
Firewall/Airbox Hole, what to do with it?
In the picture, there is two visible openings for the stock AC/Heater box. NOw that I'm installing a Non-AC heater box, do i need to do anything with the hole on the right side?, or can i just put the new box over it....would it be a good idea to block it off with a metal or plasic plate since it will serve no function? (at least i don't think it does anything, maybe i'm wrong) 
03-21-2006, 09:49 PM
#3
Senior Member
Thread Starter
Join Date: Aug 2004
Location: Upstate New York
Posts: 708
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 SC Camaro
Engine: 305 TBI
Transmission: 700-R4
Well, it appears (from looking at the Heater Box) that the round hole on the left is where the air gets pushed into and out the heater vents inside the car, but maybe I'm wrong...i really don't know for certain...can anyone tell me what both holes do?
03-21-2006, 10:39 PM
#4
Senior Member
Join Date: Apr 2003
Location: Grand Terrace, CA
Posts: 678
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 Camaro
Engine: 310 LG4
Transmission: 700R4 w/2200 stall
Axle/Gears: 3.42
i'm having same problem, except my holes will be patched forever. Get some sheet metal, or diamond plate from ACE, cut it to fit, bolt it on and seal it with RTV.
03-21-2006, 10:50 PM
#5
Senior Member
Thread Starter
Join Date: Aug 2004
Location: Upstate New York
Posts: 708
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 SC Camaro
Engine: 305 TBI
Transmission: 700-R4
so I'm assuming that i can do that with just the square shaped opening on the right side, i would still need the circular hole on the left for heat...i think the hole on the right was for the air condenser which is gone now...
03-22-2006, 09:29 AM
#6
Supreme Member
iTrader: (2)
Join Date: Jan 2002
Location: Moorestown, NJ
Posts: 9,962
Likes: 0
Received 3 Likes
on
3 Posts
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Put the heater box on w/o blocking anything. The round one is the intake for teh fan. The rectangular one is the supply that leads to the heater core and ducts in the dash. Block either and your car will be rather chilly in the winter
03-28-2006, 02:36 PM
#7
Member
Join Date: Aug 2005
Location: Great Lakes State
Posts: 128
Likes: 0
Received 0 Likes
on
0 Posts
Car: 89 gta ws6, Dodge Turbo Diesel, H-D
Engine: 383 4-bolt #638 block
Transmission: 700r4, corvette servo, 2200 stall
Axle/Gears: 3.27 9 bolt b-w, pbr discs
box
Not to step on anyones toes but the round one on left IS where the
blower motor mounts. The rectangle or square on right is where A/C
unit comes into play and you can block that one off.
blower motor mounts. The rectangle or square on right is where A/C
unit comes into play and you can block that one off.
Trending Topics
03-28-2006, 02:40 PM
#8
Supreme Member
iTrader: (1)
Join Date: Oct 2004
Location: Worcester, MA
Posts: 3,361
Likes: 0
Received 1 Like
on
1 Post
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
Why block off a hole you won't see- especially if you don't know how the system works?
I was always under the impression that one is an input, the other an output. Air flows through the box.
I was always under the impression that one is an input, the other an output. Air flows through the box.
03-28-2006, 02:57 PM
#9
Senior Member
Thread Starter
Join Date: Aug 2004
Location: Upstate New York
Posts: 708
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1988 SC Camaro
Engine: 305 TBI
Transmission: 700-R4
well, the A/C Unit sits (sat) right in front of the rectangle/square type hole on the firewall...but I don't know if it also serves as a function for the heat...if it does, then I will need to leave it alone and just install the Non-AC Heater box, if it was in fact just for the A/C, then i can't see why blocking it off would be a problem...but i guess I'll just leave it alone and install the heater box. I'll let you guys know if it works correctly, but I'm guessing that it will
03-28-2006, 04:06 PM
#10
Senior Member
Join Date: Jul 2004
Location: Victorville, CA
Posts: 742
Likes: 0
Received 0 Likes
on
0 Posts
Car: 85 Trans Am
Engine: 350 (CCC QJet)
Transmission: 700R4
Axle/Gears: 3.08 9 bolt
The heater core is on the hole! Look cant you see it?! Just put the box on, dont block it.
03-28-2006, 05:49 PM
#11
Supreme Member
iTrader: (1)
Join Date: Oct 2004
Location: Worcester, MA
Posts: 3,361
Likes: 0
Received 1 Like
on
1 Post
Car: 86 T/A
Engine: HSR 355
Transmission: 700R4
Axle/Gears: 2.77 posi
Originally Posted by Forshock 85TA
The heater core is on the hole! Look cant you see it?! Just put the box on, dont block it.
Thread
Thread Starter
Forum
Replies
Last Post
Pac J
Tech / General Engine
3
05-17-2020 10:44 AM
Bohemian
Aftermarket Product Review
11
11-25-2015 09:38 PM
