Finally!
I've thought about a turbo or supercharged 360. Better fit, handling ,gas mileage plus more power than a 451 or 440. Manual steering and manual brake car otta be easy fit.
My thoughts as well.
It should be possible to detune the 360 some, to run those 2.76s, and get superb-for-a-360 fuel economy, yet with a staged system you could have torque on demand with the smaller one, and mega-power when the larger comes on line.
I know if I ever get the coin for a do-over, that is what I would do.
Well except I think I would start with a smaller engine. I have this old 273 here that has been begging for a home since about 1974..............................
I think I could get 25/28mpgsUS outta one of those pretty easy.And 300/350 ftlbs on the little turbo. And 450hp on the total. And I wouldn't need a steenking 6000 rpm cam either. It could idle at 500 in gear, and sound like nothing is going on at all. I could run a small TC and let the little turbo do the work in all the lower rpms, yet it could freewheel at 65 mph=2200ish rpm. I like 2200. It's a nice quiet comforting sound out the back. I would run an A999 for the wide-ratio gears, and the reasonable starter gear.I would set up the turbo to not blow the tires away like my 360 does. Just a nice Grand National soft-start.A gentlemans start.
I have always wanted to try one of those Offy Dual-Ports with a dualfeed spreadbore carb. I was thinking of running dual fuels, 87E10 in the primaries and 91 into the back. I was thinking of plumbing the smaller turbo into the primaries and the big-mutha into the back dumps. Can you imagine the throttle response?! I think I would try to figure out how to stage the primaries 100% without engaging the secondaries. And then figure out how to bring the secondaries in a different way.
I have an idea for the exhaust too, but most would poo-poo my idea, so I won't even mention it. I'm already way out of my comfort zone.
I would like to run long tubes into interconnected plenums alongside the automatic. Then turn around and run a small pipe from there up to a small turbo under the hood.
Then run a bigger pipe from that plenum rearwards to the big turbo out back where the muffler now is. I wouldn't run mufflers at all. The turbos could be sized for a bit of overlap
Since both turbos are running off the same plenum,I could stage them with priority valves to open/close in any combination I like. I can even shut the little one off once the big one gets going; I would never need a waste-gate.
The remote-mount would need it's own oil supply and pump. The front one probably not.
The beauty of this system is that I can use any old junkyard engine. If it blows up, I am never more than a few dollars and a day from being down the road again. If the front turbo quits, I can shut it off, and keep on trucking. If the back one quits, I can still pump enough air through it to cruise on home from anywhere. And it will not affect my fuel consumption one tiny bit. If they both seize up at the same time, I can remove the hat, and still drive. If my priority valve controller dies, I can still drive.
Set up for cheap gas on the primaries, I can drive anywhere.
If the 273 is not powerful enough by itself until the small turbo comes to life, a teener is like $200 or less almost anywhere. A 360 is not much more.And they all interchange. Actually a 340 ...no forget that. A better idea is a 360 for it's long stroke.They are easier to adjust the compression ratio on and pistons are everywhere and cheap, if you want to get tricky.
It's just that they are so hard to not spin the tires with,lol. But you can put a lil more cam into a 360 to soften up the bottom, exactly what the teeners don't want,lol.
Ah yeah, dreaming is so much fun.
One more year and I can retire. Maybe I'll go out and remortgage my house while they will still let me........
Whatever you decide, I'm looking forward to see your dream come true. I'll be watching.