EFI inlet manifold + supercharger for 440
 

Hi All

From the research that I've done to date, it seems to me that I'm in uncharted territory.

I want to fit EFI, mapped ignition and a supercharger to my 440.

EFI will be by means of Megasquirt 2 (or 3) ECU (with which I have A LOT of experience) with be either EDIS-8 or direct coil control but it will be wasted spark distributorless, mapped via the ECU.

I live at 4500' AMSL which reduces an engine's power by 15-20%. My engine is also a low compression version (8.2:1) which reduces potential power output by (pick a number). The purpose of the supercharger will be ONLY to get back what I've lost in CR and altitude. For this reason, and to stay within the rpm limit of the SC, I will only boost 0.3bar and the engine will be rev limited to 4500rpm.

My challenge is to find an intake manifold that will support multi-port injection as well as the Sprintex S5-335 supercharger I will be using.

So far it seems my only choices are the Edelbrock 29545 intake manifold (which might be too tall, it also seems to be more suitable for high rpms) or the manifold that comes with the Edelbrock 35080 (or 35090) kits but it seems the manifold in the 35080 kit is not offered alone. Can anyone verify this?

Any other suggestions as to what manifold I could use? Please note that I do NOT want to go with throttle bodies. It must be multi-port injection.

I cannot answer you directly, but you should be able to find someone to install injector bungs, even if you have to do some finish work===grinding the bottom of the injector mount bung smooth, etc. I've read where folks have used JB Weld (epoxy) to fasten the bungs in, but frankly, that does not seem like a good idea

I'm going to do my own using brass 1/2" compression x 3/8 pipe fittings like "this guy" did: I did have to turn out a small amount of internal diameter to get the injectors to fit:



http://www.bangshift.com/forum/showt...Injector-Bungs

http://www.dune-buggy.com/turbo/partslist.htm

http://www.dune-buggy.com/turbo/imag...ctorbosses.jpg

http://memimage.cardomain.com/member...4_194_full.jpg

http://memimage.cardomain.com/member...4_196_full.jpg


...................Looked at your photos.............I'd forgotten just how crowed a Jensen IS. Been over 20 years since I've seen one of those..........

It will not make much difference which manifold you choose. You are going to blow through it instead of suck. LOL Especially with such a mild engine. BTW the CR is dead on for a super charger anyway.I'm advising under the assumption that you're using a centrifugal charger,not a roots.

"Bigblock" nailed it.

The intake design, although does effect airflow, it wont matter much as the fuel and air do not need to flow jointly. The mega squirt will let you tune the low end with timing and fuel quite nicely.

http://whiteracing.com/

Here is an intake.

I've been drooling over this one since they introduced it.

http://www.summitracing.com/parts/ed.../make/chrysler