Technical ***April 2021 Banger Meet Thread - Fooling with Bangers***

I found a good use for a broken crankshaft today.

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Wish's I'd a thought of that! I've made a lot of scrap iron outta old Ford parts!

 

Going thru my files and found this...

 

Any benefit from the exhaust thrust is cancelled by the additional weight, oh, but the sound....

 

Actually, with the firing order of 1-2-4-3. "Tuned Exhaust" is NOT accomplished with merging 1 & 4 primaries. and 2 & 3 primaries. Such configuration, according to Ricardo's studies are for a 1-4-3-2 order. Exhaust Tuning is basically calculated using the firing order, size of the cylinder volume, power & torque curve of the engine (usually dictated by valve timing), and cross-section of the primaries. Example: if I were to put a "Tuned Exhaust" on MY engine (which I have not); I would have to bring primaries 42 inches long for 1 and 2 cylinders and merge them in a "Collector" with cylinders 3 & 4! This would probably give exhaust extraction beginning at between 4000 & 5000 r.p.m. The phenonium is that each individual exhaust charge pulls the next in behind it!

 

With Back to the 50's shutdown again, I want to go to the Speedster Reunion this year.
Anyone else going??

https://www.museumofamericanspeed.com/speedstersreunion.html

 

John,
that firing order would require a different crankshaft and the order would be 1,4,2,3

J

 

Yes,
Registered and paid

Sent from my XT1585 using The H.A.M.B. mobile app

 

I wonder if exhaust tuning to help pull the intake charge into the cylinder `works with the Siamese intake port ❓

 

My 4 into 1 header i made with my dad follows the firing order
It wasn't practical to make them equal length due to being right hand drive and having an oil filter, but I think it has a unique sound for a banger

 

The May 2021 Banger Meet is looking for you https://www.jalopyjournal.com/forum/threads/may-2021-banger-meet-thread-great-shop-weather.1228734/

 

@Star 351 - that's a nice looking header, RHD looks a pain to work around!

 

Well done!