The last piece of the engine puzzle: An exhaust header | Project Elva sports racer

We still needed an exhaust header before we could install and dyno the engine for our Elva sports racer. But we couldn’t find a spare.

At first we thought we’d design one from scratch, so we asked the folks at longtime exhaust fabricator Burns Stainless for some help. They provided an ingenious universal header modeling block system–kind of like Legos that are used to mock up an exhaust header that can then be duplicated in tubing. Burns Stainless does beautiful TIG work, by the way.

But then we found a reader who owns the sister car to our Elva and is willing to loan us the original header. Assuming it fits our car, we’ll send it to Burns Stainless and ask the shop to replicate it.

We got lucky: Fellow Elva owner Chris Diminco is restoring a car just like ours, so he’s going to loan us an original Mk VI header. If it fits our car and chassis, we’ll have Burns Stainless duplicate it. Photography Credit: Chris Diminco

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stroker PowerDork
9/22/22 11:11 a.m.

Man, that "Lego Header" thing looks like money waiting to be made for someone with 3D printing capability...

frenchyd MegaDork
9/26/22 9:46 p.m.

In reply to Tim Suddard :

Do be careful on the diameters and lengths.  There is always the temptation to go too big and too short. But the song begins with the piccolo and ends with the Bassoon instead of the other way around. 
  Enzo was always careful  to undersized his exhaust pipes because races are won coming out of the corner not catching up at the end of the straights.   

Tim Suddard
Tim Suddard Publisher
9/29/22 1:33 p.m.

In reply to stroker :

Yes, I think as 3D printers become more prevalent, they may replace this technology.

Tim Suddard
Tim Suddard Publisher
9/29/22 1:33 p.m.

In reply to frenchyd :

So true!

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