Brake line question

[John T]

When running the brake line from the master cylinder to the rear, how close to the headers is acceptable?
How close to the driver's foot box are the headers?

[DadofThree]

This won't answer your question, but rather a suggestion. I ran mine forward, then down to stay away from the headers/Jpipe

https://farm8.staticflickr.com/7320/27692335322_78cbe315a7_z.jpg (https://flic.kr/p/Jc5svh)Untitled (https://flic.kr/p/Jc5svh) by D. R. (https://www.flickr.com/photos/annabellerose/), on Flickr

https://farm8.staticflickr.com/7316/27692336572_ceb553f02e_z.jpg (https://flic.kr/p/Jc5sSQ)Untitled (https://flic.kr/p/Jc5sSQ) by D. R. (https://www.flickr.com/photos/annabellerose/), on Flickr

https://farm8.staticflickr.com/7286/27181045714_9ba05ca93a_z.jpg (https://flic.kr/p/HpTXVd)Untitled (https://flic.kr/p/HpTXVd) by D. R. (https://www.flickr.com/photos/annabellerose/), on Flickr

https://farm8.staticflickr.com/7418/27758555256_3ba1fc8285_z.jpg (https://flic.kr/p/JhVRoh)Untitled (https://flic.kr/p/JhVRoh) by D. R. (https://www.flickr.com/photos/annabellerose/), on Flickr

[phileas_fogg]

What engine & what headers? The Coyote hardware is MUCH tighter to the foot box than my 302...


John

For my 302, I’ve got about 3/16” clearance between the closest part of the header and the corner of the foot box.

https://farm5.staticflickr.com/4327/36157302601_949659b6ef_k.jpg (https://flic.kr/p/X66CmZ)IMG_2294 (https://flic.kr/p/X66CmZ) by jhsitton (https://www.flickr.com/photos/91016165@N07/), on Flickr

https://farm5.staticflickr.com/4325/36157303781_201f741b40_k.jpg (https://flic.kr/p/X66CHk)IMG_2293 (https://flic.kr/p/X66CHk) by jhsitton (https://www.flickr.com/photos/91016165@N07/), on Flickr

[frankb]

I ran my rear brake line down the 2" square tube INSIDE the cockpit to avoid the header heat. I curved the line around the accelerator pedal mount and out the bottom of the floor right next to the 4" round tube and from there along the 4" tube to the rear. The front brake line runs along the upper 3/4" sq tube, and is far enough above the headers that it is not affected by the heat.

[edwardb]

I ran my rear brake line down the 2" square tube INSIDE the cockpit to avoid the header heat. I curved the line around the accelerator pedal mount and out the bottom of the floor right next to the 4" round tube and from there along the 4" tube to the rear. The front brake line runs along the upper 3/4" sq tube, and is far enough above the headers that it is not affected by the heat.

X2. That's what I've done with two Coyote builds as well. Ran the rear brake line inside the footbox, out the bottom, and then along the frame rails back. Never close to the headers and heat, and a neat installation. Visible in these pics. Where it came out the bottom, I filled with Permatex Ultimate Black. Could also have been a grommet. I didn't use any unions. But if you do, don't put them inside the footbox where they would be hard to access if necessary. The line is visible in these pics.

Update: Unfortunately, looks like the pictures aren't showing. (Thanks Photobucket...) If you can't see them, they don't add too much. Just reinforce what others have also suggested to put the rear brake line in the DS footbox.

http://i867.photobucket.com/albums/ab234/edwardb123/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/th_IMG_3957_zpsapkf0x3i.jpg (http://s867.photobucket.com/user/edwardb123/media/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/IMG_3957_zpsapkf0x3i.jpg.html)

http://i867.photobucket.com/albums/ab234/edwardb123/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/th_IMG_3958_zpsjavjryz5.jpg (http://s867.photobucket.com/user/edwardb123/media/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/IMG_3958_zpsjavjryz5.jpg.html)

http://i867.photobucket.com/albums/ab234/edwardb123/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/th_IMG_3964_zps3cc84ts7.jpg (http://s867.photobucket.com/user/edwardb123/media/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/IMG_3964_zps3cc84ts7.jpg.html)

http://i867.photobucket.com/albums/ab234/edwardb123/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/th_IMG_3962_zpsxmo66rav.jpg (http://s867.photobucket.com/user/edwardb123/media/Factory%20Five%2020th%20Anniversary%20Mark%204%20R oadster/Fuel%20and%20Brake%20Lines/IMG_3962_zpsxmo66rav.jpg.html)

[John T]

Thanks for the suggestions.

[John T]

What engine & what headers? The Coyote hardware is MUCH tighter to the foot box than my 302...


John

For my 302, I’ve got about 3/16” clearance between the closest part of the header and the corner of the foot box.

https://farm5.staticflickr.com/4327/36157302601_949659b6ef_k.jpg (https://flic.kr/p/X66CmZ)IMG_2294 (https://flic.kr/p/X66CmZ) by jhsitton (https://www.flickr.com/photos/91016165@N07/), on Flickr

https://farm5.staticflickr.com/4325/36157303781_201f741b40_k.jpg (https://flic.kr/p/X66CHk)IMG_2293 (https://flic.kr/p/X66CHk) by jhsitton (https://www.flickr.com/photos/91016165@N07/), on Flickr

I have a Blueprint 306 with the ceramic headers.
In you photos it appears that you have an extra sheet of aluminum on the front of your foot box. Is that correct? Does it supply a heat barrier for the foot box?

[phileas_fogg]

I bet your 306 has pretty much the exact same clearance.

Yes; the extra sheet is a cosmetic stainless heat shield. I purchased the stainless from onlinemetals.com. Almost certainly unnecessary but I liked the look. The "spacers" are actually riv-nuts; they provide about 3/8" stand-off. Credit for the idea goes to MPTech. If you decide to install heat shields, be sure to round off the corners. Otherwise you'll cut/scratch your hand every time you test fit something.

And like the others, I ran my rear brake line down through the foot box. Post #196 of my build log (https://www.ffcars.com/forums/17-factory-five-roadsters/508121-phileas_fogg-s-mk-4-roadster-build-9.html) has details. Unlike the others, I ran my front brake line down the lower 3/4" frame parallel to the steering column. That's described in post #187.


John

https://farm5.staticflickr.com/4317/36157315991_4d7d7d1234_k.jpg (https://flic.kr/p/X66GkR)IMG_2245 (https://flic.kr/p/X66GkR) by jhsitton (https://www.flickr.com/photos/91016165@N07/), on Flickr

[GoDadGo]

For what it is worth, I ran my front line down the upper square tube and my rear inside the foot box and then under the car along the 4" frame tube.
Also, I'm running a Wilwood Pedal assembly so running the rear inside the foot box was an easy solution to avoid the heat of the headers.
You can see what I did between 7-25 seconds and again around 1:30- 1:40 minutes the attached video and

https://youtu.be/_wnHDNgnNqs

Also, I moved my fuse block to the opposite side of the car to make it easier to get to and to give me better access to the stuff hiding in the driver's foot-box.

Good Luck & Hope This Helps!