Custom Header Thread
+14
whitefield
gmsmkr
70FB
514F-1
richter69
res0rli9
yellowhorse7
GTmustang
John Myrick
rmcomprandy
cool40
windsor
69F100
whatbumper
18 posters
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Custom Header Thread
Post up some work. Trying to brag a little but it helps to see whats out there for ideas.
X275 car. I know it's a bbc but the idea is the same. Hard to package 2.5" nitrous headers in a stock framed chassis.
X275 car. I know it's a bbc but the idea is the same. Hard to package 2.5" nitrous headers in a stock framed chassis.
Last edited by whatbumper on February 8th 2015, 6:26 pm; edited 1 time in total
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
Here is the ones I built for mine 2 1/4'' tubes after I put the strut frontend under it would have been a lot harder with the stock front
69F100- BBF CONTRIBUTOR
- Posts : 5386
Join date : 2009-01-04
Age : 57
Location : Irwinville Ga.
Re: Custom Header Thread
looks good. It is easier when you have room.
Here's another.
Here's another.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
Here a couple more of the header I built with the stock front that exited under the truck when I 1st built it
69F100- BBF CONTRIBUTOR
- Posts : 5386
Join date : 2009-01-04
Age : 57
Location : Irwinville Ga.
Re: Custom Header Thread
I think I'm gonna like this thread. Keep em coming folks.
windsor- Posts : 1167
Join date : 2009-08-09
Location : St. Pete/Northern Va.
Re: Custom Header Thread
706 BBC in a fox body...
cool40- BBF CONTRIBUTOR
- Posts : 7313
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: Custom Header Thread
X275 Nova 2.5" primaries. These were mild steel as customer was getting them jet-hot coated. Notice how easy plug maintenance is.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
A lot of people in that situation go to a Tri-Y design simply because they take-up a lot less space when going big.
I have no idea whether or not they work better or worse or the same in those nitrous situations.
I have no idea whether or not they work better or worse or the same in those nitrous situations.
Re: Custom Header Thread
rmcomprandy wrote:A lot of people in that situation go to a Tri-Y design simply because they take-up a lot less space when going big.
I have no idea whether or not they work better or worse or the same in those nitrous situations.
I have seen that. We have actually not done any dyno testing to compare but that would help with packaging if the power was close.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
What's a ballpark price for a set of custom mild steel headers ?
John Myrick- BBF CONTRIBUTOR
- Posts : 1153
Join date : 2011-02-05
Age : 62
Location : Maryland
Re: Custom Header Thread
These are my custom 2- 2.125" step BBF Fox body headers that were built by Tom Stiel of Waterford MI for my 1992 GT w/ a 1.5" engine drop and 1.5" setback. Tube size and primary length were spec'd by the engine builder, Rand Malik (rmcomprandy) of Roseville MI.
[img][/img]
[img][/img]
The headers were ceramic coated by QC Coatings of Roseville MI for a little underhood heat reduction and a lot of Bling!
[img][/img]
The individual header tubes and bolt on collectors make installation a little easier, but it is a real puzzle anyway with the tubes snaking through a fairly tight space!
Gary
[img][/img]
[img][/img]
The headers were ceramic coated by QC Coatings of Roseville MI for a little underhood heat reduction and a lot of Bling!
[img][/img]
The individual header tubes and bolt on collectors make installation a little easier, but it is a real puzzle anyway with the tubes snaking through a fairly tight space!
Gary
GTmustang- BBF CONTRIBUTOR
- Posts : 395
Join date : 2008-12-02
Location : Rogers City, MI
Re: Custom Header Thread
Let's take it 1 step further and talk about designing a MAX EFFORT header. N20, N/A, Turbo, whatever.
Merge Collectors, Stepped or no, tube size, equal length or no??????
So many opinions out there on this subject.....what's yours?
Merge Collectors, Stepped or no, tube size, equal length or no??????
So many opinions out there on this subject.....what's yours?
yellowhorse7- Posts : 1382
Join date : 2009-11-16
Age : 98
Location : Polk County
Re: Custom Header Thread
John Myrick wrote:What's a ballpark price for a set of custom mild steel headers ?
There are some people that knock them out for about $1000 but we charge more. Most of our big tube nitrous style stuff is in the $2000 range including mufflers built on the car including moving items and clearance stuff as needed unless it is major firewall work and then it goes up. Coating is extra. Like I've said in another thread cheap is in the eye of the beholder. We could throw a set of tubes together in a few hours if you aren't worried about plug maintenance or if the tires hit.
To be honest we build 9 set of stainless for ever set of mild because of the price difference after coating, resell value on car, and overall life.
The set on the gold nova above actually weighed 12 lbs less than a set of hookers that were on the car and the engine tuneup changed dramatically.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
yellowhorse7 wrote:Let's take it 1 step further and talk about designing a MAX EFFORT header. N20, N/A, Turbo, whatever.
Merge Collectors, Stepped or no, tube size, equal length or no??????
So many opinions out there on this subject.....what's yours?
We've done a little of it all. Tube size for nitrous is "big". Don't see a real big difference on stepped stuff in the cars we do. We honestly aren't that concerned with equal length of tubes unless it's NA as we don't see much difference in data on nitrous cars but everyone has different data so I'm sure someone can counter that.
turbo on the other hand: we shoot for more equal and try to keep everything tight to each other to hold heat. primary size is based on cubic inch of motor and not necessarily power output. we use double slip collectors on turbo stuff unless it is retrofitting an old set of headers like these below.
at that time we are more concerned with wastegate placement.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
yellowhorse7 wrote:Let's take it 1 step further and talk about designing a MAX EFFORT header. N20, N/A, Turbo, whatever.
Merge Collectors, Stepped or no, tube size, equal length or no??????
So many opinions out there on this subject.....what's yours?
X2
res0rli9- BBF CONTRIBUTOR
- Posts : 3352
Join date : 2008-12-02
Age : 74
Location : sarasota FL.
Re: Custom Header Thread
ive done like 4 sets and fixin to do another real soon.
x2 on the heavy nos stuff just make um big and let the stuff get out of um asap.
x2 on the heavy nos stuff just make um big and let the stuff get out of um asap.
richter69- Posts : 13649
Join date : 2008-12-02
Age : 53
Location : In the winners circle
Re: Custom Header Thread
Good work guys, having a set of side exits done for my truck now, they just sent me the completed pics, but they are on my phone, i'll get some when they get back from the powdercoater. They look badass even before the ceramic coating.
514F-1- Posts : 242
Join date : 2013-08-06
Age : 36
Location : Plant City FL
Re: Custom Header Thread
Suscribed
70FB- BBF CONTRIBUTOR
- Posts : 824
Join date : 2012-07-28
Age : 50
Location : VA
Re: Custom Header Thread
There is some nice work on this post I have not built any yet but will give it a go soon...keep the pics coming
gmsmkr- Posts : 1364
Join date : 2014-06-22
Location : alabama
Re: Custom Header Thread
Last edited by whitefield on February 10th 2015, 7:53 am; edited 1 time in total
whitefield- Posts : 2244
Join date : 2009-08-23
Age : 56
Re: Custom Header Thread
2.5" easy to build chassis headers.
cool40- BBF CONTRIBUTOR
- Posts : 7313
Join date : 2009-08-31
Age : 53
Location : on the 1/8 mile dyno
Re: Custom Header Thread
cool40 wrote: 2.5" easy to build chassis headers.
Look at all that space. Lol
Look good.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: Custom Header Thread
We back purge all tubing welding and build our own collectors and mufflers unless customer provided. We TIG weld everything we do including body modifications we do to limit weld splatter on the car.
We agree with Jon above above nitrous header size. Big and get rid of it quick. The stainless is nice because after a pass you can take the hood off and usually it is cool enough to take plugs out immediately.
We agree with Jon above above nitrous header size. Big and get rid of it quick. The stainless is nice because after a pass you can take the hood off and usually it is cool enough to take plugs out immediately.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
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