EFI. last time I ask

Posted By: Slipknot440

EFI. last time I ask - 03/17/11 12:42 AM

Ok i finally saved enough for the EZ EFI. Before I jump in I would like anyones input on what else I need for it i.e. ignition, block off plates etc. Pros? Cons? Will I be able run a turbo or super in the future (doubt I'll ever get that far but it's always a thought). Are any of the other systems, holley, edelbrock, powerjection, accel, etc. just as good or are they all the same just customer service is better with the EZ system (from what I can decipher from this site)

I plan on running it on my 426 hemi. standard orange box mopar igition. MP distributor (recurved). roller cam. around 500 hp and 500 ft lbs

Posted By: ahy

Re: EFI. last time I ask - 03/17/11 12:58 AM

EX EFI is somewhat unique because its "EZ". The others you mention (and FAST) have systems that completly control fuel and spark but aren't so EZ.

I think your ignition should be fine. A MSD ignition may run a little better, especially at idle and low load, but what you have should work fine... especially if it is already dialed in for your engine. Its better to change one thing at a time anyhow. I assume you have the fuel system covered with a high pressure electric pump and suitable filter and regulator. You'll need a fuel pump block off plate available from Mancini and just about everybody else to cover the hole left by removing the OE type pump.

Posted By: Dartman75

Re: EFI. last time I ask - 03/17/11 01:19 AM

Looks like the EZ EFI system tackles most of the stuff even the wideband O2 sensor and the bung you need to install into the exhaust. Fuel pump, regulator, filters, injectors (sized for you), throttle body, sensors. Really looks complete. Expect just a hand full of whatever you need to finish plumbing and splicing wires.

Make sure your alternator is capable of supply (max 30A total roughly between pumps and electronic controls).

Best of luck. Congrats on taking the plunge!

Greg

Posted By: U code RR

Re: EFI. last time I ask - 03/17/11 01:49 AM

Yeah Congrats, this is a project I'm considering also. Keep us updated!

Posted By: DJVCuda

Re: EFI. last time I ask - 03/17/11 01:59 AM

I went with the EZ last year - stock chrysler ignition system and it runs great - follow the instructions and you will have no problems - i deviated from the system at the fuel pump / tank setup -

I got a tank and internal pump from rock valley and it's never disappointed - I've had others with external pumps loose pressure for a sec while in a corner with a low tank and I have never hit any issues at all.

Main thing is to install the power leads direct to the battery - as I had the key power off the fuse box and it was too "noisey" for the system to work properly

My madien voyage was a 300 mile trip to ocean city Md car show and 300 miles back - got 16 MPG's with the dual quad setup and driving 75 mph - it also starts instantly with no touching the throttle!!!

I highly recommend it

Posted By: Mopar_Rich

Re: EFI. last time I ask - 03/17/11 02:35 AM

Quote:

Ok i finally saved enough for the EZ EFI. Before I jump in I would like anyones input on what else I need for it i.e. ignition, block off plates etc. Pros? Cons? Will I be able run a turbo or super in the future (doubt I'll ever get that far but it's always a thought). Are any of the other systems, holley, edelbrock, powerjection, accel, etc. just as good or are they all the same just customer service is better with the EZ system (from what I can decipher from this site)

I plan on running it on my 426 hemi. standard orange box mopar igition. MP distributor (recurved). roller cam. around 500 hp and 500 ft lbs

* I would not run an orange box. The EZ-EFI needs a clean tach signal. The EZ kit includes a module that you connect to a normal distributor but it doesn't work as well as just buying an MSD 6 AL and using that tach signal.

* Run a typical timing curve as if it were carbureted.

* Sorry, no Turbo with the EZ kit. You're limited to a 1 bar map.

You'll love it.

Posted By: DJVCuda

Re: EFI. last time I ask - 03/17/11 02:39 AM

Rich - you probably have way more experience with this then I ever will but I've ran the module from FAST for a year and pout 4000 miles on the car with no issues. What exactly does not work as well?

Posted By: Mopar_Rich

Re: EFI. last time I ask - 03/17/11 02:51 AM

Quote:

Rich - you probably have way more experience with this then I ever will but I've ran the module from FAST for a year and pout 4000 miles on the car with no issues. What exactly does not work as well?

I'm glad you're running well. But I have had customers that had "rattey" signals coming from the points (real points, not an orange box, but still not MSD either). The RPM signal to the EZ box was intermittent, yet the module was okay. The EZ system (or any other EFI system for that matter) needs to get a solid signal for the engine's RPM.

I probably am being overly cautious but I figure anybody would be running aftermarket ignition anyway. I mean why not? One less thing to worry about.

Posted By: DJVCuda

Re: EFI. last time I ask - 03/17/11 03:15 AM

true - thanks for the input

I did run 2 grounds off the module - It had 2 leads - one to body and one to the block to ensure I had a good ground.

electrical - by far is the most important installation aspect of the kit. If you have a niosey power or bad ground your up the creek.

Posted By: Slipknot440

Re: EFI. last time I ask - 03/17/11 03:24 AM

I'm a litte worried about getting rid of the good old orange box as my distributor was curved specifically for my engine combo by my machinist. Can I get an MSD box to run with a regular mopar distributor? I just wan to make sure I have all my bases covered before I order next week so i know what other parts I need too

Posted By: U code RR

Re: EFI. last time I ask - 03/17/11 04:47 AM

I'm running my MSD off of a Mopar Electronic distributor and it works fine.

Posted By: DaytonaTurbo

Re: EFI. last time I ask - 03/17/11 05:00 AM

With your stock distributor you can run a MSD, Crane, Mallory, Summit, etc brand ignition box.

Posted By: Mopar_Rich

Re: EFI. last time I ask - 03/17/11 02:37 PM

Quote:

I'm a litte worried about getting rid of the good old orange box as my distributor was curved specifically for my engine combo by my machinist. Can I get an MSD box to run with a regular mopar distributor? I just wan to make sure I have all my bases covered before I order next week so i know what other parts I need too

No issue. Your distributor will work with any aftermarket box and the curve will not be affected.

Posted By: Dartman75

Re: EFI. last time I ask - 03/18/11 01:40 AM

Quote:

... I've had others with external pumps loose pressure for a sec while in a corner with a low tank and I have never hit any issues at all. ...

That is a good point. Internal or external the pump needs a constant supply. Most internals pumps have a casing to keep fuel close to you dont' lose pressure. For mine it wasn't a problem until about 1/4 tenk and a long corner. My solution was to sump pump my tank for a number of reasons. No problem now with my external pump.

I had wanted to create a returnless adaptation. Use a local high presure circut with return to a reservoir, and supply the reservoir with some other low pressure like the original fuel pump with a float cut off. They may be systems that do a returnless system by now.

Posted By: Burkenator

Re: EFI. last time I ask - 03/18/11 12:32 PM

I'm about ready to pull the trigger on the EZ-EFI as well. My only concern right now is how does the EZ-EFI handle a cam with a narrow LSA (108 degrees), long duration, and low (8") engine vacuum?

Posted By: DJVCuda

Re: EFI. last time I ask - 03/18/11 01:29 PM

my mopar 474 cam...

before : ( notice the heater hoses )

AFTER :

VIDEO HERE

Posted By: Mopar_Rich

Re: EFI. last time I ask - 03/18/11 03:53 PM

Quote:

I'm about ready to pull the trigger on the EZ-EFI as well. My only concern right now is how does the EZ-EFI handle a cam with a narrow LSA (108 degrees), long duration, and low (8") engine vacuum?

I have customers running race engines with only 5" of vacuum and they are running fine.

Posted By: Twostick

Re: EFI. last time I ask - 03/18/11 05:17 PM

I just went out and took mine out of hibernation (8.97:1 493 .509 108 LSA). I have the Holley Commander 950 Pro TBI. Turned the key, let the fuel pump do its thing for a couple of seconds and it fired up and idled like I just shut it off yesterday. It's been buried in a snow bank since December.

Mine didn't care for all the overlap in that cam at first when trying to get it to idle closed loop. Too much reversion. It idles in park with 11" and 8ish in gear. An EFI guru buddy of mine solved the problem 99% by setting it to run Alphanumeric at less than 1800 rpm.

Kevin

Posted By: patrick

Re: EFI. last time I ask - 03/18/11 07:09 PM

Quote:

my mopar 474 cam...

before : ( notice the heater hoses )

AFTER :

VIDEO HERE

holy cow, sounds like you went from a MP 509 to a comp XE262 in it, idle wise...did you change your dizzy curve at all, or is the difference entirely due to the EFI?

Posted By: Slipknot440

Re: EFI. last time I ask - 03/18/11 10:08 PM

can i piggy back an msd to the orange box? I've seen a few mopars lately with an msd box as a rev limiter. I burned up 2 mallory boxes 2 years ago which forced my hand back to the orange box so that's the other reason I'm hesitant.

Posted By: DJVCuda

Re: EFI. last time I ask - 03/19/11 12:46 AM

Patrick. Yes that is an a to b comparison no changes except time for it to learn my setup. About 2 weeks in my weekend cruiser

The EZ system has an adjustable rev limited in the handheld. I can change it from the drivers seat!

Posted By: Dragula

Re: EFI. last time I ask - 03/19/11 04:29 PM

Quote:

I went with the EZ last year - stock chrysler ignition system and it runs great - follow the instructions and you will have no problems - i deviated from the system at the fuel pump / tank setup -

I got a tank and internal pump from rock valley and it's never disappointed - I've had others with external pumps loose pressure for a sec while in a corner with a low tank and I have never hit any issues at all.

Main thing is to install the power leads direct to the battery - as I had the key power off the fuse box and it was too "noisey" for the system to work properly

My madien voyage was a 300 mile trip to ocean city Md car show and 300 miles back - got 16 MPG's with the dual quad setup and driving 75 mph - it also starts instantly with no touching the throttle!!!

I highly recommend it

Very nice tank. I have been wondering what to do to put the EZ efi on my Cuda which has a stock tank that is sumped, and that looks like a very good idea...

Posted By: Dartman75

Re: EFI. last time I ask - 03/19/11 09:23 PM

Quote:

I'm about ready to pull the trigger on the EZ-EFI as well. My only concern right now is how does the EZ-EFI handle a cam with a narrow LSA (108 degrees), long duration, and low (8") engine vacuum?

Low manifold vac and high fluctuation can be a problem. This is where systems that let you program the TPS curve as well as MAP curves can help. Mine isn't quite in that low vac range, but I did have to program the light throttle stuff around the TPS more than the MAP for lower RPM and idle characteristics to be good.

Posted By: Twostick

Re: EFI. last time I ask - 03/20/11 02:49 AM

I had to set mine to run AlphaN under 1800 RPM to make it behave with a .509 cam. Basically what you are describing.

Kevin

Posted By: DJVCuda

Re: EFI. last time I ask - 03/20/11 02:55 AM

Quote:

Quote:

I went with the EZ last year - stock chrysler ignition system and it runs great - follow the instructions and you will have no problems - i deviated from the system at the fuel pump / tank setup -

I got a tank and internal pump from rock valley and it's never disappointed - I've had others with external pumps loose pressure for a sec while in a corner with a low tank and I have never hit any issues at all.

Main thing is to install the power leads direct to the battery - as I had the key power off the fuse box and it was too "noisey" for the system to work properly

My madien voyage was a 300 mile trip to ocean city Md car show and 300 miles back - got 16 MPG's with the dual quad setup and driving 75 mph - it also starts instantly with no touching the throttle!!!

I highly recommend it

Very nice tank. I have been wondering what to do to put the EZ efi on my Cuda which has a stock tank that is sumped, and that looks like a very good idea...

for a street car its the best option out there - the pump is a warlboro unit that is designed to run at 60-65 psi and that will handle 650 horses - well above what I am running - and it never skips a beat!