Airflow around footbox into cab - how to seal? - FFCars.com : Factory Five Racing Discussion Forum
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 05-12-2019, 08:50 PM Thread Starter
Junior Member
 
Brian Klecker's Avatar
 
Join Date: Sep 2018
Location: Seneca, SC
Posts: 5
Airflow around footbox into cab - how to seal?

Short of removing the body, I'm just wondering what others have done to seal off the the voids between the aluminum panels and the fiberglass body to prevent heat from getting into the cabin from the air flowing past the headers/sidepipes and into the cabin?

I am not talking about the heat "through" the footbox panels. I'm talking about the air flow around the aluminum footbox area between the side of the car body.

Depending on the spot it varies between almost 2" to a small gap and without removing the body it seems like it would be difficult to seal the gap.

Driving at about 60 mph there is a tremendous amount of very warm air coming into the cabin which if I put my hand between the frame and fiberglass I can feel is coming in.

That was fine during the winter driving when a bit of extra heat didn't matter but now that we're getting to the hot summer months it's making it overly warm in the cab.

Just wondering if anyone else has tackled this issue on an already finished car and if so, how you solved it?

Brian Klecker is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 05-12-2019, 10:26 PM
Junior Charter Member
FFCars Craftsman
 
Join Date: Aug 2007
Location: Nova Scotia
Posts: 1,382
https://www.ffcars.com/forums/17-fac...-firewall.html


FFR Roadster Mk 3.1, 2002 SOHC 4.6 with Trickflow heads, Modular Head Shop Stage 2.5 cams, TR3650 trans, solid axle with FFR 3 Link, 3.73 gears, Yukon Axles, Levy Racing rear lower control arms, VPM 3 Link Brace, Fox length axles, 11.65" rear disks, Koni coilovers, stainless steel side pipes with Flowmaster Slimline Mufflers, FFR Halibrand replica wheels, Mickey Thompson Street Comp Tires. Paint colors: Lexus Spectra Blue Mica and Ford Performance White stripes.
Driver_WT is offline  
post #3 of 14 (permalink) Old 05-13-2019, 01:05 AM
Senior Member
FFCars Master Craftsman
 
CDXXVII's Avatar
 
Join Date: Jan 2011
Location: Santa Clarita / California
Posts: 2,067
Foam Rod

If your body is already installed you need to purchase two of these from McMaster.com Easy to shape and not too bad to tuck in between the body and sheet metal. Easier without the louvers installed. The foam rods are easily compressible and do a great job of sealing. Just take your time.

There is also a vendor that sells it in kit form but I cannot remember who it is. Basically the same thing though.

https://www.mcmaster.com/8875k13


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

F5R #7841: Anniversary Edition MK4, Ford Racing 427, Edelbrock EFI, Gas-N Pipes, Stainless Headers, TKO600, 3.31 Moser 3-Link, 17" Halibrands
First Start 05/23/2015
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

First GoCart 05/23/2015
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by CDXXVII; 05-13-2019 at 01:57 AM.
CDXXVII is offline  
Sponsored Links
Advertisement
 
post #4 of 14 (permalink) Old 05-13-2019, 01:19 AM
Senior Member
FFCars Major
 
rich grsc's Avatar
 
Join Date: Aug 2007
Location: O'Fallon, Mo
Posts: 7,333
Walk into any Walmart and pickup some of the soft foam used around AC units. WAY less than the stuff from McMaster's and very easy to install.
rich grsc is online now  
post #5 of 14 (permalink) Old 05-13-2019, 11:24 AM
FFCobra Craftsman
 
CraigS's Avatar
 
Join Date: Feb 2005
Location: Blacksburg, Va
Posts: 21,888
The trouble w/ the AC foam is that it is open cell and you can blow right through it. When you stuff it into place and compress it, I expect it is less open cell but still.

FFR 5353K, 408W, TKO 500, 2015 IRS w/ 315 gear, Breeze QA1 DA coilovers front and rear, APE hardtop, Forte front swaybar
CraigS is offline  
post #6 of 14 (permalink) Old 05-13-2019, 11:45 AM
Not a waxer
 
JKleiner's Avatar
 
Join Date: Apr 2002
Location: Bloomington, Indiana
Posts: 11,451
Quote:
Originally Posted by CraigS View Post
The trouble w/ the AC foam is that it is open cell and you can blow right through it. When you stuff it into place and compress it, I expect it is less open cell but still.
Craig,
While the AC foam is technically open cell it is very dense. I've used it on a bunch of cars and it is quite effective at stopping drafts and airflow.

Jeff

Mk3 #5946 build pics w/text

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Mk4 #7276 "indy14" Build thread

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Mk4 Bodywork thread

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
JKleiner is online now  
post #7 of 14 (permalink) Old 05-13-2019, 02:17 PM
Senior Member
FFCars Captain
 
edwardb's Avatar
 
Join Date: Sep 2009
Location: Lake Orion, MI
Posts: 5,724
Quote:
Originally Posted by JKleiner View Post
Craig,
While the AC foam is technically open cell it is very dense. I've used it on a bunch of cars and it is quite effective at stopping drafts and airflow.

Jeff
X2. I have the exact foam Jeff recommended, from Ace Hardware. Added after #8674 was finished. Took the front splash guards out and pushed it into place. Zero air flows through there.

Build 1: Mk3 #5125. Sold 11/08/2014.
Build 2: Mk4 Roadster #7750. Sold 04/10/2017.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Build 3: Mk4 Roadster 20th Anniversary #8674. 03 of 20. 2015 crate Coyote, 2015 IRS. Legal 04/18/2017.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
and
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Build 4: Gen 3 Type 65 Coupe #59. Gen 3 crate Coyote. Delivered 12/2/2017.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
edwardb is online now  
post #8 of 14 (permalink) Old 05-14-2019, 11:40 PM
FFCobra Craftsman
 
CraigS's Avatar
 
Join Date: Feb 2005
Location: Blacksburg, Va
Posts: 21,888
I used to get that foam wherever I happened be so not sure of the exact brand. But 3-4 years ago I held a piece over my mouth and made like blowing out a candle. There was virtually no resistance. So I quit using it.

FFR 5353K, 408W, TKO 500, 2015 IRS w/ 315 gear, Breeze QA1 DA coilovers front and rear, APE hardtop, Forte front swaybar
CraigS is offline  
post #9 of 14 (permalink) Old 05-15-2019, 01:37 AM
Junior Member
 
Join Date: Apr 2017
Location: Elk Grove, CA-Norcal
Posts: 29
My body is off to paint so i havent done this yet. However, i plan on using memory foam from an old mattress topper.
vspeeds is offline  
post #10 of 14 (permalink) Old 05-15-2019, 10:35 AM
Not a waxer
 
JKleiner's Avatar
 
Join Date: Apr 2002
Location: Bloomington, Indiana
Posts: 11,451
Quote:
Originally Posted by CraigS View Post
I used to get that foam wherever I happened be so not sure of the exact brand. But 3-4 years ago I held a piece over my mouth and made like blowing out a candle. There was virtually no resistance. So I quit using it.
Curiosity got me so I tried this...with effort I could blow through the stuff I use but my cheeks puffed out and there is no way I would get enough velocity to blow out my Birthday cake candles! Either I'm not a good blower or we're using different foam

Jeff


Mk3 #5946 build pics w/text

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Mk4 #7276 "indy14" Build thread

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Mk4 Bodywork thread

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
JKleiner is online now  
post #11 of 14 (permalink) Old 05-15-2019, 11:05 AM
Senior Member
FFCars Major
 
rich grsc's Avatar
 
Join Date: Aug 2007
Location: O'Fallon, Mo
Posts: 7,333
That, and there is no real air flowing through these areas. Not like you have a hurricane wind. I have used the same stuff on two builds, 100% stopped the air flow, and its 100% easier to install on a built car than pool noodles.
rich grsc is online now  
post #12 of 14 (permalink) Old 05-15-2019, 03:24 PM
Ray
Moderator
 
Ray's Avatar
 
Join Date: Jan 2002
Location: San Diego, California
Posts: 7,638
Garage
Send a message via Yahoo to Ray
I had the same issue but solved it extremely cheap.

Went to the local 99-cent store and bought a couple of the “pool noodle” swim toys. Easy to cut and stuff them into the gaps. They’ve held up for 10-years now.

Only cost me a couple of bucks.

Ray

If it weren't for physics and law enforcement...I'd be unstoppable!
Ray is offline  
post #13 of 14 (permalink) Old 05-15-2019, 07:32 PM
Senior Member
FFCars Major
 
Mike D's Avatar
 
Join Date: Sep 2002
Location: Phx, Az
Posts: 9,932
Pool noodles here

I'd have finished a long time ago if I knew they were this fun!


FFR 4888: Street Cobra: No Scoop, No Pipes, No Rollbar.

302, TW heads, E-cam, Edlebrock intake and carb.
Mike D is offline  
post #14 of 14 (permalink) Old 05-15-2019, 07:40 PM
Senior Member
FFCars Captain
 
MPTech's Avatar
 
Join Date: Jan 2009
Location: StL, MO
Posts: 4,738
Garage
x2 on AC foam, cheap and easy to install.
I removed the front tires and pushed it back with a yardstick, all the way to the door hinge. (don't forget to cross the top of the footbox too)


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
F5R #7446: MK4, 302, T5 midshift, 3.55 Posi IRS, 17" Halibrands
Delivered 4/4/11, First start 9/29/12, Licensed 4/24/13, PAINTED 4/17/14!! Wahoo!
MPTech is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the FFCars.com : Factory Five Racing Discussion Forum 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 for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Trunk carpet and bulb seal Lou N Factory Five Roadsters 12 01-15-2019 12:16 AM
Bulb seal rich grsc Factory Five Roadsters 8 01-12-2019 12:49 AM
More Ford Racing Crate Engine Adventures - Possible Failed Rear Main Seal CDXXVII Factory Five Roadsters 15 12-29-2018 04:43 PM
For Sale: New Driver Footbox Cover w/Access Panel $35/shipped tahamsh Parts For Sale / Wanted 0 11-17-2018 09:09 PM
Bulb seal mg2 Factory Five Roadsters 8 10-15-2018 02:23 AM

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

 

Welcome to FFCars! The representations expressed are the representations and opinions of the FFCars.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Factory Five Racing, Inc. or Ford Motor Company. This website has been planned and developed by FFCars.com and its forum members and should not be construed as being endorsed by Factory Five Racing, Inc. or Ford Motor Company for any purpose. "FFR", "Factory Five", "Factory Five Racing", and the Factory Five Racing logo are registered trademarks of Factory Five Racing, Inc. FFCars.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting the FFCars.com Forum dedicated to Factory Five.