S54 Header Design talk

[Obioban]

[Casa de Mesa]

Ha! I saw this vid yesterday and came to this thread to post it! Beat me to the punch...

[George Hill]

We really are living in the future. Bry5on has been telling me I need to 3d print my headers but I am a neanderthal when it comes to CAD. I use Fusion360 and I just cannot wrap my head around making a tube in multiple planes/3d. If anyone has some good tutorials or tips I'd love to hear it.

[heinzboehmer]

We really are living in the future. Bry5on has been telling me I need to 3d print my headers but I am a neanderthal when it comes to CAD. I use Fusion360 and I just cannot wrap my head around making a tube in multiple planes/3d. If anyone has some good tutorials or tips I'd love to hear it.

This is a decent overview of the process: https://youtu.be/rJtX_xwq_4M

That whole channel is a good reference for this kinda stuff.

[George Hill]

This is a decent overview of the process: https://youtu.be/rJtX_xwq_4M

Love his channel. And yes he gives an overview of the process. Its the actual design implementation that I struggle with. I'm fairly proficient in making 2d CAD drawings, but when I have to make a single line that traverses the X, Y and Z axis thats where I get lost. Which is 100% necessary for header design.

[digger]

one of the issue i see with 3D printing is getting a slip joint to seal if that is a design feature that is necessary for ease of assembly

[Bry5on]

one of the issue i see with 3D printing is getting a slip joint to seal if that is a design feature that is necessary for ease of assembly

We should be able to print in a shoulder/joint to pretty easily use a compressible seal like the factory headers. I'd say that would be preferable to any sort of slip joint. Slip joints are for welding

[digger]

We should be able to print in a shoulder/joint to pretty easily use a compressible seal like the factory headers. I'd say that would be preferable to any sort of slip joint. Slip joints are for welding

i was more thinking about slip on collectors like the 3D printed version of

[Bry5on]

i was more thinking about slip on collectors like the 3D printed version of

I've been assuming that the move is to print the final step inclusive of the merge, with each first or first+second step as its own pipe+flange. Then fixture those up with a simple fixture, weld, and enjoy.

[digger]

I've been assuming that the move is to print the final step inclusive of the merge, with each first or first+second step as its own pipe+flange. Then fixture those up with a simple fixture, weld, and enjoy.

yes, but with one whole piece having 3 primaries, collector merge and collector pipes segment it makes it much more difficult to install particularly as the primaries get longer

[George Hill]

There is also the Supersprint idea, but it is bulky

[ApexPothole]

Does anyone have any information on what effects can be expected from noncircular exhaust runner cross sections? As in if you were to flow from a round profile to a D or triangular shaped profile, while maintaining cross sectional area, and avoiding any sudden transitions, can you assume the runner would behave like an equivalent round cross section? I would think that if cross sections can be non-circular, then lots of interesting things could be done regarding packaging and weight saving.

[F360C]

Have you guys seen these? I don't have any experience with the them but they're a copy of the P54 headers.

https://5150autosport.com/products/p54-racing-header?srsltid=AfmBOop-7hY_6-TSNCCcCDfQa_N8DLsZ8hBBn-Rd1uFY--Z20W86hw5e

[Cronenberged]

Have you guys seen these? I don't have any experience with the them but they're a copy of the P54 headers.

https://5150autosport.com/products/p...FY--Z20W86hw5e

Those actually priced well, other companies I checked quoted 5k +

[3staxontheradio]

With 3d printing I can easily bundle 3 primaries together into an interconnected profile and they end up as a similar diameter to a 2.5" collector. I was going to look at the p54 design and see if I could follow a similar layout but with longer primaries and getting the merges inline with each other. If that's possible I can probably fit any length of primaries without going totally bundle of snakes like I have on the last few layouts.i really want to get the merges in line because I think that will sound way better.