V-12 with blowers

[atomman]

OK, I have to much time to think, so, I have a V-12 , 0.040, aluminum 3 ring pistons, mild cam just sittin' on the shelf. Has anyone ever put 2 blower on top of this monster, and is it even possible. :signthankspin:
Atomman

[bigblockv6]

I think the best bet would be to build a manifold that sits on top of the two existing manifolds that connects them together at their top bases and just run one blower say from a 12V-71 engine.

[TJ's GMC]

The cool factor was sky rocket. You'd have figure a way to drive the second blower.

[atomman]

Would this work sufficiently with standard head or would magnums be required?
Atomman

[ilvracn]

I'VE BEEN KICKING THAT AROUND ALSO. I'M THINKING 4 TURBOS, ONE ON EACH EXHAUST MANIFOLD. 2 FOR EACH CARB, 650 CFM EACH.
ANY THOUGHTS? WAS GOING TO HAVE CAM REGROUND, WILL TURBOS NEED A DIFFERENT CAM PROFILE? DON'T HAVE MUCH EXPERIENCE WITH TURBO CHARGERS.:teehee:

[bigblockv6]

4 Turbo's definitely sound good, are you talking about using two 650cfm 4 barrel carbs? If you're going to be running that much carburetion then a custom grind cam would be a good idea.

[bigblockv6]

OK, I have to much time to think, so, I have a V-12 , 0.040, aluminum 3 ring pistons, mild cam just sittin' on the shelf. Has anyone ever put 2 blower on top of this monster, and is it even possible. :signthankspin:
Atomman

To get the most out of it Magnum heads would be a good idea though the stock heads are adequate.

[TJ's GMC]

Would it be a waste of time to port magnum heads and put bigger valves in?

[ilvracn]

i was wondering if 2 650 cfm carbs would be too much. with the lower rpm band of this engine. i was planning on turning 4000 to 5000 rpm max, depending on how much i can lighten up the rotating assembly.

[bigblockv6]

Would it be a waste of time to port magnum heads and out bigger valves in?

Magnum heads already have some pretty big valves so there's no need for bigger valves, I had my heads ported for my 478M.

[bigblockv6]

i was wondering if 2 650 cfm carbs would be too much. with the lower rpm band of this engine. i was planning on turning 4000 to 5000 rpm max, depending on how much i can lighten up the rotating assembly.

I would run 2 Demon 500cfm carbs like Thunder V12 does, you may also want to contact them on how they do their build up on these engines:ok:

[atomman]

Demon carbs are no longer available.

[ilvracn]

Never liked demon carbs much anyway. I've had great luck with quickfuel and holley

[TJ's GMC]

I musta gotten the last 625 cfm road demon for my 292 as shortly after I am seeing they are gone. Plenty of demon carbs available though from Summit Racing. Best luck I have had has been with edelbrock thus far.