6066 (1960-1966) GMC Truck Club

6066 (1960-1966) GMC Truck Club (https://6066gmcclub.com/index.php)
-   GMC V6 and V12 Engines (https://6066gmcclub.com/forumdisplay.php?f=9)
-   -   V-12 with blowers (https://6066gmcclub.com/showthread.php?t=49949)

atomman April 11th, 2017 06:46 PM

V-12 with blowers
 
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 April 11th, 2017 11:55 PM

Re: V-12 with blowers
 
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 April 12th, 2017 02:04 AM

Re: V-12 with blowers
 
The cool factor was sky rocket. You'd have figure a way to drive the second blower.

atomman April 12th, 2017 03:49 AM

Re: V-12 with blowers
 
Would this work sufficiently with standard head or would magnums be required?
Atomman

ilvracn April 12th, 2017 02:54 PM

Re: V-12 with blowers
 
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 April 13th, 2017 04:14 AM

Re: V-12 with blowers
 
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 April 13th, 2017 04:16 AM

Re: V-12 with blowers
 
Quote:

Originally Posted by atomman (Post 66758)
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 April 13th, 2017 04:04 PM

Re: V-12 with blowers
 
Would it be a waste of time to port magnum heads and put bigger valves in?

ilvracn April 13th, 2017 04:13 PM

Re: V-12 with blowers
 
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 April 14th, 2017 04:06 AM

Re: V-12 with blowers
 
Quote:

Originally Posted by TJ's GMC (Post 66781)
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.


All times are GMT +1. The time now is 03:17 PM.

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.