i am picking up a little 2.3L n/a mustang for really cheap this summer and then gonna drop a 2.3L Turbo t-bird coupe motor in it. with a t3/t4 50trim, FMIC, ported intake manifold and 3" dump. anyways the abilities for the ECM and injector combos where out @ 35lbs injectors and cannot really go much further.

so i thought this might be a good application for a megasquirt to run some 52lbs injectors to see how much i can squeeze outta the little motor (forged pistons/rods/ARP bolts).

BUT- im sure parish will chime in-
got a few questions-
is megasquire easy to assemble?
how about installing and tuning it? does it take much to learn it?
had any problems with it as far as failures or anything of that sort?

 

Sounds like you have to talk to the diesel geek!!!!!

 

Diesel Geek the the magasquirter guru that talked Parish into getting magasquirted (is that a word) and fords are his forte.

That motor combo you speak of is what I want to drop into my girlfriends 1970 Maverick.


To The Top

 

actually i think im just gonna run the megasquirt as a piggy back for bigger injectors


is that possible?

 

geek is the one to talk to. he has done a ton of fords and a lot of 4 cylinder dsm's. i dont know about any 4cyl fords though. in fuel only mode it is super simple and can be run on any motor. ignition is easy most of the time but not always.

geek built mine so i can't say how easy it is. i you are comfortable with a soldering iron and can follow directions then i say go for it but if not just order one prebuilt from someone.

wireing it up was prety easy but once again i am comfortable with that kind of thing. if you can wire up a stero from start to finish then you can wire the mega into your car.

tuning is the strong point. it is very easy to learn. i started with ls1edit and efilive and this is 10x easier. it took us a little while to get the right numbers to get the truck to fire off the first time, like 1/2 hour but once it started up we had it tuned for wot in about an hour. that is from first start to tuned for 10+psi. it was quick and easy to tune. part throttle stuff took a little time but not too bad.

 

cool- ya i installed a complete sound system and stand alone FJO nitrous set-up in my truck. No as far as the guages. the Megasquirt will make it easier for use of aftermarket guages correct? So bascially i can hook the megasquirt up so that it only controlls ignition and injectors - so this means i can control the fuel/ignition maps?

But on megasquirts website---
Q. Is there a simpler version of MegaSquirt to only control extra injectors piggyback style?

A. You can use the standard MegaSquirt to control extra injectors.
You wouldn't need to hook up the coolant temperature sensor, if you didn't want to, you would just set all the temperature dependent values to 100% (warm-up enrichments, cold accel enrich., etc.).

You don't need to hook up a TPS, you can just set all the accel enrichments to 0, and hook a resistor from the input pin (#22) to ground (otherwise the CPU will see a climbing value and go to 'flood clear mode'.)

You don't need to hook up an oxygen sensor, just set the EGO step size to 0%.

For the air temperature sensor, you would just hook a resistor across the pin (#20) where the sensor would normally connect. This resistor could have any value from the sensor curve (in the sensor section of the manual) to approximate whatever temperature you think appropriate, or you could use a potentiometer to tune the extra fuel with a single ****.


1.) where can i find a potentiometer (i know what they do i have used them on our electric motor cycle @ school) to use.

2.) also is there a wiring diagram for this or just do as it said.

 

https://www.performancetrucks.net/fo...d.php?t=365586

assembled and installed by a mechanical engineer....

 

you need all of that stuff for it to run properly. it isn't hard to hook up at all.

check out my original megasquirt post from awhile back and see if that helps at all >> https://ls1tech.com/forums/showthread.php?t=245059

 

but i just want to run piggy back..... you sure i have to hook it up totally?

 

yes, you need the iat sensor and coolant sensor and tps for it to add fuel properly.

if it was just used for some added injectors like you had injectors on top of the stock injectors and the stock ones were still controled by the factory ecm then you could skip everything but the rpm and map.