VA Gen IV evaporator install and smooth firewall - Team Camaro Tech
Heating & Cooling Heating, cooling and air conditioning

 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old Apr 3rd, 10, 06:23 AM Thread Starter
Senior Tech
Ted
 
Join Date: Dec 2005
Location: Cedar Rapids, IA
Posts: 1,810
VA Gen IV evaporator install and smooth firewall

I am in the process of installing my VA unit and body work and paint, with a smoothed firewall. In mounting it according to the VA instructions there are two brackets. The rear one mounts up to the inner cowl. The front through an existing hole through the firewall. But I would like to have a smoothed firewall. Even the way it is mounted presently seems not very sturdy. My hoses will be run through the old fan hole and behind the fender, as I have seen some of your pics out there. My question for those that have mounted their VA unit and are running the hoses through the fan opening and have a smoothed firewall is. Did you make any other mounting brackets for the evaporator? What did you do to achieve a smooth wall without bolts going through it? Oh, also what did you do to achieve sealing off the kickpanel area to keep the water runoff from getting inside?
tgifford5 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old Apr 3rd, 10, 05:57 PM
Gold Lifetime Member
Mike
 
prostreet69camaro's Avatar
 
Join Date: Jul 2003
Location: Spring Texas
Posts: 5,580
Re: VA Gen IV evaporator install and smooth firewall

Here is how I mounted the Gen II in my buddies car. We used the DSE bracket for the smooth firewall. You will see it wraps around the back and mounts to 3 existing brackets under the dash. 2 on the left side. 1 on the top right side.

The lower left side was removed because of the Marquez dash. I made 2 flat bar brackets that attached to the 2 bolts you see in the front and the bracket goes up to the cowl panel and bolts to it. Then I used dum dum to seal around the bolt head and washer so water wont get in the car.

DSE bracket



Left 2 mounting points



Here is the 2 brackets I made.


Mike
69 Camaro Prostreet - purple w/ghost flames , 502 w/ 871 blower


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
prostreet69camaro is offline  
post #3 of 11 (permalink) Old Apr 4th, 10, 09:48 AM Thread Starter
Senior Tech
Ted
 
Join Date: Dec 2005
Location: Cedar Rapids, IA
Posts: 1,810
Re: VA Gen IV evaporator install and smooth firewall

Mike, after you mounted it up with your brackets you made. Did it seem sturdy then? So that it wouldn't flop around when you hit a bump. The Gen II and Gen IV units are different looking and mount up different also.
tgifford5 is offline  
 
post #4 of 11 (permalink) Old Apr 4th, 10, 11:00 AM
Senior Tech
Rod
 
Join Date: Oct 2004
Location: Metamora, IL
Posts: 1,712
Re: VA Gen IV evaporator install and smooth firewall

I have a Gen IV unit installed with a smooth firewall and it seems pretty sturdy. Also remember once you get you a/c and heater hose lines the additional weight will help keep everything in place.

For the the bracket that attaches to the firewall I used a j-nut on the the existing firewall, before smoothing it, and screwed the bolt into it, then later smoothed the firewall. This way I do not have a bolt going through the smoothed firewall.

https://www.camaros.net/forums/showth...t=98442&page=2 go to post #44 for some pics

Rod
69 Camaro with LS2/4l70e

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Rocketrod is offline  
post #5 of 11 (permalink) Old Apr 4th, 10, 12:01 PM
Gold Lifetime Member
Mike
 
prostreet69camaro's Avatar
 
Join Date: Jul 2003
Location: Spring Texas
Posts: 5,580
Re: VA Gen IV evaporator install and smooth firewall

Quote:
Originally Posted by tgifford5 View Post
Mike, after you mounted it up with your brackets you made. Did it seem sturdy then? So that it wouldn't flop around when you hit a bump. The Gen II and Gen IV units are different looking and mount up different also.
Once I had the 2 brackets on it, it was real sturdy. I wish I knew how a GenIV mounted but I have never seen one.

Mike
69 Camaro Prostreet - purple w/ghost flames , 502 w/ 871 blower


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
prostreet69camaro is offline  
post #6 of 11 (permalink) Old Apr 4th, 10, 12:08 PM Thread Starter
Senior Tech
Ted
 
Join Date: Dec 2005
Location: Cedar Rapids, IA
Posts: 1,810
Re: VA Gen IV evaporator install and smooth firewall

Rocketrod, did you use a DSE firewall panel? Is the j-nut behind the panel?
tgifford5 is offline  
post #7 of 11 (permalink) Old Apr 4th, 10, 12:13 PM Thread Starter
Senior Tech
Ted
 
Join Date: Dec 2005
Location: Cedar Rapids, IA
Posts: 1,810
Re: VA Gen IV evaporator install and smooth firewall

Quote:
Originally Posted by prostreet69camaro View Post
Once I had the 2 brackets on it, it was real sturdy. I wish I knew how a GenIV mounted but I have never seen one.
The GenIV has 2 brackets. The rear one is a wider bracket and mounts with 2 sheetmetal screws to the inner cowl. The front bracket is smaller and mounts using a bolt that sticks through an existing hole in the firewall from the original a/c suitcase. So if you would want a smooth firewall you have a bolt sticking out through the firewall.
tgifford5 is offline  
post #8 of 11 (permalink) Old Apr 4th, 10, 12:42 PM Thread Starter
Senior Tech
Ted
 
Join Date: Dec 2005
Location: Cedar Rapids, IA
Posts: 1,810
Re: VA Gen IV evaporator install and smooth firewall

Another question for those that ran their hoses through the kick panel and out the fan hole. What did you do to the kick panel to prevent water from following down the hoses and into the cabin? Water comes down from the cowl area. Any pics of that finished area?
tgifford5 is offline  
post #9 of 11 (permalink) Old Apr 4th, 10, 04:30 PM
Senior Tech
Rod
 
Join Date: Oct 2004
Location: Metamora, IL
Posts: 1,712
Re: VA Gen IV evaporator install and smooth firewall

Quote:
Originally Posted by tgifford5 View Post
Rocketrod, did you use a DSE firewall panel? Is the j-nut behind the panel?
Yes the j-nut is behind the filler plate and attached to the original firewall. I use the filler plate from Mik'e s Custom Cars, which contained a raised step to give it the look that it has a seam in the firewall. Click the link in my signature and it will take you to the thread that has pics and additional details.

Quote:
Originally Posted by tgifford5 View Post
The GenIV has 2 brackets. The rear one is a wider bracket and mounts with 2 sheetmetal screws to the inner cowl. The front bracket is smaller and mounts using a bolt that sticks through an existing hole in the firewall from the original a/c suitcase. So if you would want a smooth firewall you have a bolt sticking out through the firewall.
No you do not have to have a bolt sticking through the firewall...

Rod
69 Camaro with LS2/4l70e

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Rocketrod is offline  
post #10 of 11 (permalink) Old Apr 5th, 10, 08:59 AM
123
Gold Lifetime Member
tom
 
Join Date: Aug 2009
Location: ohio
Posts: 237
Re: VA Gen IV evaporator install and smooth firewall

when i installed my genIV i made up tap pads, welded the lower one to the firewall, and welded the upper one to the inside cowl, worked great and easy to keep the firewall smooth

thanks tom
123 is offline  
post #11 of 11 (permalink) Old Apr 5th, 10, 09:09 AM Thread Starter
Senior Tech
Ted
 
Join Date: Dec 2005
Location: Cedar Rapids, IA
Posts: 1,810
Re: VA Gen IV evaporator install and smooth firewall

Quote:
Originally Posted by 123 View Post
when i installed my genIV i made up tap pads, welded the lower one to the firewall, and welded the upper one to the inside cowl, worked great and easy to keep the firewall smooth

thanks tom
What do you mean by tap pads? Any pics?
tgifford5 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome