EFI Manifolds

[Mr. Nitro]

Hi Everyone,

Getting back to work on my 67 Fury III and along with doing the sheet metal repairs I am working on my engine build. I am taking a 400 over bored .040 and plan to use the 440 source stroker kit for a 512 cubic inch ground pounder. I have a set of ported Indy cylinder heads ready to go and plan to use a hydraulic roller cam from 440 Source as well. My question comes in the form of the induction system. My old school self wants to use a carburetor. My new school self wants to go multiport EFI using the MAXX ECU for control, as this is what I now use in all the Nitro bikes we build. The MAXX is an awesome unit and will do anything you can think of as far as managing your Mopar. I have been doing research on intake manifolds and my thoughts are to go with something like the performer or Edelbrock TM6 and just weld in the bungs for the injectors.
Do any of you guys have any info that you would like to share on this subject.

Thanks and Merry Christmas to everyone.

Mr. Nitro

 

[Darter6]

This might be fun.

 

[Trace 300 Hurst]

Interesting subject!

 

[twostick]

If you were building a 440 based stroker, Edelbrock has an EFI manifold.

https://www.edelbrock.com/pro-flo-xt-chrysler-big-block-rb-efi-intake-manifold-7144.html


Kevin

 

[CBODY67]

(hood clearance with that intake?)

 

[Mr. Nitro]

Welding in the bungs for the injectors is easy. I did see manifolds for the RB engines but not the B. I would use a single throttle body in place of the carburetor and reinstall the dual snorkel air cleaner that came on the car for a cool look. I am going to talk to my MAXX rep and get his thoughts but I think it would be pretty cool and drivable.

Fabricating is something I do every day.

 

[twostick]

(hood clearance with that intake?)

A Performer RPM is 5.35" tall at the carb pad and a Holley (gasp!) or Edelbrock carb is 3.25" tall. Even a drop base filter is going to make the overall height taller than the Proflo intake is (9.6") and the RPM combo for most applications, fits under the hood.

Kevin

 

[furious70]

I've been running mpi efi since 2009. Today on a new build I'd use a sniper. What has you thinking mpi?

 

[Mr. Nitro]

I've been running mpi efi since 2009. Today on a new build I'd use a sniper. What has you thinking mpi?

I put a Sniper on a 1970 383 Challenger 2 years ago. I had to send it back 3 different times before I could even get the car to run. All kind of issues with the injectors in the throttle body. It did not like the camshaft that was in the car. The manifold vacuum at idle was lower than what it wanted. I finally just made a manual idle map for the car and would not let the Sniper take control of anything until 1400 rpm, but it took me months of trial and error to get there. Other considerations are a "dry" system versus a "wet" system and total control with the MAXX ECU.