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Late to the party, but here's my thought: Duesenberg straight 8, 420 ci, DOHC, 4 valves/cylinder, 265HP in 192-f***ing-8. If that's not enough challenge, it was supercharged in 1932 to 320HP. And if you're feeling masochistic, in 1935 tuned to almost 400HP with a custom dual carb "ram's horn"...

I had a specific moment in my early 20s when I realized I had over $1,000 in each of several RC cars (my favorite hobby), and for that kind of money I could be working on a full size machine I could ride in myself...so I gritted my teeth and made the transition. Fast forward 25 years or so and...

a friend of mine had an oxy-acetylene torch, but arranging a time to get the Z3 over there is becoming an issue. for me, the easiest solution is having these tapered shims made so i can just slide under, bolt them in, and be done. the other plus is that it leaves the factory parts completely...

I was thinking about some sort of extra shielding, for safety's sake. So i will do that, I appreciate the advice. I will ask a friend if I can borrow his oxy-acetylene setup, otherwise I will go get a 2nd MAPP gas torch and have at it that way. Thanks for your offer, Joe. If this doesn't work...

Hmm. I may pick up a 2nd torch and try that out.

That's an interesting thought. I would be afraid the tube would fold/tear in ways I don't want it to. Have you done something like this before? Would a MAPP gas torch be sufficient for that?

20 year old 2.8l NA straight 6 in a state of tune maybe 10% higher than stock. I appreciate the detailed information. It's a stainless steel tube header. This wedge isn't going against the head, it's going between the header and the factory exhaust. Here is another quick sketch to clarify what...

Doesn't matter to me what material is used. Whatever the maker has lying around his shop is fine. If he wants to use steel, to avoid any question of whether an aluminum wedge would melt, that's fine.

I appreciate the variety of responses. To answer a few questions: I am in Toledo, Ohio. I am a huge fan of this forum and the engines you guys build, been here since 2014, but I have no machining capability of my own. The plan is to put a gasket on either side of this wedge, yes. Already have...

I have no idea if this would be the proper forum for my request, but here goes. I have an odd problem with my sports car; the aftermarket and factory exhaust flanges don't line up quite correctly. They are not parallel to each other. The bolts and pipe line up fine, but the gap between the...

Hello, just a quick introduction here, to be polite and make it official. William, from Toledo, Ohio. I do have a highly mechanical and technical background; cars are my hobby and Biomed is my job. I discovered you guys one day several years ago, randomly trolling the internet and stumbled...

What an amazing first project. I will be watching this. Here is a thread of another 18 cylinder radial build, by mayhugh1. It's a very different model of engine, but mayhugh1's posts are long and detailed, with many explanations of his thought processes, techniques, and results, and many...