Joe have u looked into the thickness of your header design?
1300$ Ouch!
The sec pic is very vital from a welding standpoint!Cause the bending of the pipes is always a main point on building headers.

 

With the computer program that I used, I basically just did a standard type of design. To get it to fit into the engine bay you'd need to get the dimensions of where the headers can fit and then work from there, that's what I plan on doing. I have some rough sketches of the engine bay and of where they can fit, but its all still in the planning stages. Anyways, I hope that answers your question.


Which thickness are you talking about?


Here are pics of the headers with collector and the rest of the finalized stuff. If there is another view you'd like to see just ask, I just really don't feel like doing screen shots and reducing images over and over like last time...

-Joe Bliz

 

Joe i was talking about tube thickness.

 

The tubes are .275" thick. And the beauty of the program is that I can change it to whatever I want in less than a minute

-Joe Bliz

 

You Can Get ahold of Lemons headers via e-mail and send them your designs for fabrication, I know they charge around $1000.00 to custom fab 2 and 21/2 in primary Big Block headers and they are great quality fabricators.So your shortys should be a bit less. You just send your design via e-mail and vwala, headers @ your front door via UPS!
thanks ACS

 

You Can Get ahold of Lemons headers via e-mail and send them your designs for fabrication, I know they charge around $1000.00 to custom fab 2 and 21/2 in primary Big Block headers and they are great quality fabricators.So your shortys should be a bit less. You just send your design via e-mail and vwala, headers @ your front door via UPS!
thanks ACS

 

davehamilton - do you have any type of contact information for Lemons Headers?

Thanks,

-Joe Bliz

 

Here's a link to Lemon's website:
http://www.lemonsheaders.com/

On those last pics, it looks like the collector diameter is rather small and restrictive. Maybe it just looks small to me, I don't know. Good job so far though, I'm impressed! Is there anywhere you can get that software?

 

Speaking of pulse waves, anyone see a few months ago in Popular Science about the Pulse Detonation technology? Perhaps in a few years we'll be seeing this idea put into car engines in some way...

 

I am very familiar with it because one of my professors sons is the head engineer at the base developing it. So far their group has come the farthest with it. I sat through a pulse detonation lecture recently and it was facinating. If will be desgined primarily for aircraft purposes. There will have to be some serious changes to implement it on the streets (flames shooting out the back of the car).

 

I know, I am pretty aware of the subject too. I was just thinking how cool it would be tho... :-D

 

Which collector diameter looks restrictive? I adjust it however, this is all basically rough estimates on measurements. I'm going to buckle down this weekend and make a thirdgen specific design. My teacher is really impressed and he is going to print out the model on a big poster printer and put it on his wall for the rest of his classes to see. I'm pretty stoked about that.

You can get Autodesk Inventor 6.0 through the company Autodesk. Unfortunately it retails at over $1000. I was lucky enough to be a part of a pre-engineering program where I got a discount and received and 'educational version' of the program. Everything is the same except that if I print out an Orthographic File it puts banners across the entire thing saying "Educational Version: AutoDesk Product Blah Blah Blah"

Although I don't condone it... **cough cough** rumor has it that you can find some older versions of Autodesk Inventor on Kazaa and other file sharing programs... but that's just a rumor. And I don't support it at all

-Joe Bliz

EDIT: That pulse detonation technology sounds really cool, I'm gonna try to get some info on it sometime.

 

On the very last pic you uploaded, the ID of the collector flange looks small. I don't know if it's just me, or if it's bigger than it looks, but in respect to the primary size it just doesn't look right I guess. Like I said, maybe it's just me...

 

The tubing wall is .275" thick ? That's over ¼" wall thickness (½" total so, 1-5/8" od headers would be 1-1/8 id) Most standard grade headers are made from 18ga tubing (.0625" or 1/16" walled tubing).

 

I did that mostly to show the thickness in the tubing for presentation purposes. I totally understand what you are talking about, but I have to present this to a panel of judges that won't know jack about cars, so I had to exaggerate a wee bit in order for them to understand the concept.

Thanks for bringing that to my attention though.

-Joe Bliz

 

Did you come across my website during your literature search? The header design should start with the pipe sizes and lengths that give the engine the wave action that it needs for best performance. Header geometry comes next. Materials come third. Keep the pipe bend radii to a maximum for best flow, and use an x-pipe or y-pipe as a collector termination (expansion) detail if the pipe lengths will reach to the rear of the transmission. Otherwise use a crossover H-pipe at the designed collector outlet.

Good luck with the project, and $1000 is minimal for a custom header build. Do it yourself in the welding shop.

 

I did come across your website, it is so informative I was almost overwhelmed by the ammount of information in front of me. I must definately give you your kudos, you have most definately done your research.

Just to let you guys know, because of the time frame and the availible funds, I talked to my teacher and he said that I don't have to have the exact headers I designed, in my hand for the final grade. I ended up buying some ceramic coated hedmans from ACS, they are similar to my design... kinda, but not really close. Maybe when I work some more and get my foot in the door around town with mechanics and such, and I can get my design produced.

Thanks a lot for everyone's help, I really appreciate it. I'll let you guys know how the presentation went, and whether or not I get to graduate or not.

-Joe Bliz
ablazina@kua.net

P.S. Shifty if you wouldn't mind, I'd like to give you some credit in my project, if you could email me with some of your information, I'd really appreciate it.

Anyone else who'd like credit for their ideas, I'm more than willing to include you... just email me your information.