what efi parts are these and can i use them on my 360 magnum

-
M

maca

Well-Known Member
Joined
Apr 17, 2015
Messages
355
Reaction score
42
Location
australia
Hey guys
I just brought another 360 magnum and looking at putting a new cam in it and installing it into my 1971 aussie coupe. I was just going to run a carby but It came with a throttle body and edelbrock manifold modified with fuel rails and injectors. I have the old barrel manifold and the factory ecu and wiring but I have rea they are limited and wont produce the power I want. This is all new to me. Can anyone tell me what I will need to run the edelbrock efi set up and anything else about my parts like injector size, what throttle body it is etc. I can get my hands on a Haltech E6K for $600 but not sure if this will do what I need.
cheers


 
The haltech will do the job, but it need to be custom tuned by you or someone that understand the basics in tuning, also there will be alot of wiring to sensors etc,but i guess you alredy know most of what i have written alredy
 
Thanks for the reply
Is tuning the haltech the same as tuning a msd box as I do that on my laptop or is the haltech something that has to be done by an efi shop
Also can I hook up the sensors like air mass, air fuel ratio and throttle position sensors
 
need more info or better pics. What does intake say on it besides edelbrock? Looks like somebody added injector pads to carb intake. Not Mopar injectors . This system is not a MAF system, its a MAP system. TPS is already there,looks like GM. Cant see front of TB where MAP should be mounted.
You would need rest of sensors, build a harness and use a MS2 or 3 controller. Whats HP range? Will also need fuel system to run it.
 
I found the injectors listed below. Not sure what hp they could handle
Manufacturer P/N:17113738
Static Flow lb/hr (n-Heptane):50.0
Static Flow cc/min:525

It is a edelbrock Airgap carby manifold with pads welded on as you mentioned. It has a tps sensor and another sensor in a 1 inch spacer which I think is maybe the air mass sensor.
I don't know much about efi but installing a efi pump etc will be easy as I have done it several times and have efi pressures regulators but the computer side of things I don't know much.
Will that haltech I mentioned hook up to all the sensors and crank sensor and run my efi or will I need more than that
Cheers
 
50 lb injectors are huge, you can flow massive amounts of fuel with those. Probably too much fuel; idle may be hard to tune.

On the throttle body, it looks like it has a stepper motor style idle air control. Can you post pics of it?

I run Megasquirt 2 on my 318. It's inputs are manifold air pressure, coolant temp, tps. Outputs are full control over fuel and ignition and its timing. Also have an idle air control to make idle nice and adjustable.

Go to www.megamanual.com and start browsing around to help you out and help answer a lot of questions.
 
Thanks I will have a look at them. I was hoping to run the Haltech as its for sale just down the road but will check out megasquirt 1st. Is there a way to work out what HP these injectors will support?

Here is a better pic You can see the throttle body is a RPM brand but has nothing else on it. I have no idea what cfm it is. It has a couple of sensors on it. One looks to be a Throttle position sensor and the other seem to be hooked up to a vacuum port that comes out the top and bottom of the throttle body.

Then it sits on a spacer which also has a sensor. Is it a mass air flow sensor? It will be under the butterflies.
20160606_233008.jpg
 
The sensor mounted on end of throttle shaft appears to be a GM style(not mopar or furd) TPS sensor, the one on the front of TB is an IAC valve(GM style also) and the sensor in spacer is the IAT(intake air temp). AGAIN, not a MAF system, it a MAP. MAF is speed density. MAP is vacuum based. MAF has air flow meter like GM car and VW while MAP uses small pressure sensor connected to manifold vacuum. I doubt that will fit under hood with that spacer but hard to tell from pic. 50# injectors wont work at all, stock ones are 24# and even big engines with over 500 hp only run 38#. The TB looks a lot like one MP used to use on their MPFI retro fit kit which was about 1000 cfm.
 
The sensor on the spacer is air intake temp. On the throttle body in the pic, the black object on the bottom is the idle air control. Looks to be gm style stepper motor. Should have a 4 pin electrical connector. It bypasses air past the butterflys to set idle speed. Those injectors would likely support 600hp or more if they're truly 50 lb hr. For example I have 44lb injectors for a turbo 318 and they're mostly too large for gasoline. I'll be running e85 later which requires 30% more fuel and they should be ok with that. You could always run stock 360 mag injectors.

I'm not familiar with haltech so I can't give any guidance on that.

I don't think the setup you bought will be using anything mass air flow. It seems it was set up for speed density tuning. Which means it uses air pressure, temp, and an estimation of the engines volumetric efficiency.
 
Thanks guys, that info helps heaps.
Apart from a afr sensor in the exhaust and my crank angle sensor is there any other sensors i will need?

Running my factory injectors is a great idea and when I want to run bigger hp they will be there to install. The last engine I built was 600hp but this one is for a cruiser and shooting for 360hp.

Eventually I will be running a blow through set up. Would this set up allow me to run boost
 
You will need an Oxygen sensor, crank position sensor, cam position sensor and injectors. I would swap out that TB for a factory 2 bbl Mopar one as that one is way to big for 360hp. But you can always try it, just night not have great low end torque with it. you will also need fuel pump, filter/regulator and line kit. I wouldnt waste my time with frame mounted pump, just do it right and put it in the tank where it belongs.
 
I dont wanna sound like an expert, but my answers just get kinda right on because i dont wanna sit all night and type:)
next is based on running haltech or MS. You dont want to run the stock ecu if you are serious about injection and more than a stocker hp.
50lb injectors last to rule of thumb x10 HP on a v8, so 500hp. guess some more depending on fuel pressure! idle is not a problem unless the injectors are crap. 50lb is usually no problem. BIG camshaft is bigger issue to tune tu run nice,but doable.

yeah, you may tune the haltec yourself with a wideband lambda, its like megasquirt and those. I have not tried MSD so, cant give you an answer on that one.
 
magnummopar said:
You will need an Oxygen sensor, crank position sensor, cam position sensor and injectors. I would swap out that TB for a factory 2 bbl Mopar one as that one is way to big for 360hp. But you can always try it, just night not have great low end torque with it. you will also need fuel pump, filter/regulator and line kit. I wouldnt waste my time with frame mounted pump, just do it right and put it in the tank where it belongs.
Click to expand...

speaking of aftermarked ecu, the only downside of running a big throttlebody is that its getting hard to drive slow. you open up a big area wery fast with little throttle movement. the rest is just tuning. you dont have to worry about any fuel puddeling or bad speed signal for the carb. the corv**** has a ~3,5" TB and unfortunately doing really fine...
 
maca said:
Thanks I will have a look at them. I was hoping to run the Haltech as its for sale just down the road but will check out megasquirt 1st. Is there a way to work out what HP these injectors will support?

Here is a better pic You can see the throttle body is a RPM brand but has nothing else on it. I have no idea what cfm it is. It has a couple of sensors on it. One looks to be a Throttle position sensor and the other seem to be hooked up to a vacuum port that comes out the top and bottom of the throttle body.

Then it sits on a spacer which also has a sensor. Is it a mass air flow sensor? It will be under the butterflies.
Click to expand...

you need:
throttle position sensor
manifold vacuum sensor
manifold air temperature sensor
the last sensor thing you need is a tach signal to run.

water temp is nice then you may add warmup enrichment and such.
idle air controller is surely nice to control idle when cold.

its a nice package if you go aftermarked ecu.
sensor type is no problem on most ecu as you calibrate them to min and max. stepper idle motor is usually supported.

its WAY less hassle to run a carb! you need MUCH more time to get a good result with injection if you dont have done it before, but its better in the end! much more drivable, even the better half may take a spin without pumping and flooding and chocking and clearing and stalling... have a nice day!
 
Thanks guys for the info.
Most of the sensors I have seen before and would be confident installing except a cam position sensor. I would have to look into that one.
 
magnummopar said:
I have seen over 500HP normally asperated with Jtec controller, you just have to have correct flash.
Click to expand...

yup, you probably right! I dont know so much about flashing them! it may be as easy as any other... I just believe there is much easier when starting from scratch to use a megasquirt,haltech,vems or other like that you may tune all parameters easy with your own laptop, and you also have extra outputs to control turbo boost, fan, fuel pumps etc
 
the others work great, they are just expensive. You also have the advantage of pc programming if you have time to learn. Flashing Jtec pcm is not easy.
 
You must log in or register to reply here.
-

Back
Top