Ford 5.0 injector wiring

For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
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futuraman
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Ford 5.0 injector wiring

Post by futuraman »

Any considerations concerning pairing of injectors on 5.0 Ford V8? Any issues with fuel pressure?
FoundSoul
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Post by FoundSoul »

I'd split the banks across the fuel rails, so run two injectors from each rail on one bank, and the rest on the other, then alternate the pulses. This will help reduce the pressure drop in each rail when the injectors fire. This isn't usually an issue unless your on the ragged edge of your fuel systems capabilities but it's the better route to go...
Jerry a.k.a. 'FoundSoul' /// **Now Available** MegaSquirtPNP full Plug-N-Play EMS for the 90-97 Mazda Miata
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lani16
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Post by lani16 »

this is how i set mine upp Image That way you keep a balance in your fuel rails when the injectors are bein opened...i know i'm not an artist but get the idea
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FoundSoul
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Post by FoundSoul »

That's purty. I'll put it up on my fridge next to my daughters drawings! j/k

It's exactly right though, you could also do every other on each side but the two in the middle, two on the outside approach will work fine.
Jerry a.k.a. 'FoundSoul' /// **Now Available** MegaSquirtPNP full Plug-N-Play EMS for the 90-97 Mazda Miata
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Quetzali1
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Post by Quetzali1 »

Im a megasquirt noob, and a novice electrician. Running Megasquirt I with V3 board. I have a 5.0 Mustang GT 302 Engine.

So let me get this straight, on the megasquirt board we get 2 lines out for alternating the firing of the injectors. With this in mind we have a 4 injector firing cycle (aka 2 cylinders from each side firing at the same time through a cycle of 4). How do we wire the spark plugs so that they shoot off at appropriate times as well. Or does it matter? Can you leave the spark plugs the way they are?
FoundSoul
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Post by FoundSoul »

Ignition is a different topic altogether-- you'll either need a distributor (such as the Ford TFI ignition system) or a distributorless system (such as the Ford EDIS system). Both can be easily controlled with the MS.

Here's a page that might interest you and help you to get your 302 'squirted:
http://www.DIYAutoTune.com/tech_article ... ustang.htm

And here's more info on MegaSquirt and different ignition systems:
http://www.DIYAutoTune.com/tech_article ... ontrol.htm
Jerry a.k.a. 'FoundSoul' /// **Now Available** MegaSquirtPNP full Plug-N-Play EMS for the 90-97 Mazda Miata
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