GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
It's been quite a while since I've done engine rebuilding or even done any major wrenching.
But quite a few engines have a "core" or "crossing point" where the firing order centers.
Without my automotive books, I have to go by memory, so the SB Chevy 283 Will work as an example.
If we wanted to make a V-4 out of the 283, follow the firing order: 1-8-4-3-6-5-7-2
If you remove the front cylinders 1 and 2, then the rear cylinders 7 and 8, you'll be left with a 4 cylinder that has a firing order of 4-3-6-5.
That would require some work (as noted) but would provide relatively smooth performance.
One thing I do recall, is that VW's Type I four-banger has a "circular" firing order, which always puzzled me.
But quite a few engines have a "core" or "crossing point" where the firing order centers.
Without my automotive books, I have to go by memory, so the SB Chevy 283 Will work as an example.
If we wanted to make a V-4 out of the 283, follow the firing order: 1-8-4-3-6-5-7-2
If you remove the front cylinders 1 and 2, then the rear cylinders 7 and 8, you'll be left with a 4 cylinder that has a firing order of 4-3-6-5.
That would require some work (as noted) but would provide relatively smooth performance.
One thing I do recall, is that VW's Type I four-banger has a "circular" firing order, which always puzzled me.