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jdedmnds1 · 03-07-2012, 09:52 PM

Has anyone tried to fabricate an aftermarket ECM? I have a Megasquirt 2 I used on a 86 Mustang convertible with a 5.0 v8, and got 26 mpg on the highway with cruise set at 70, with the top up. With the addition of a wide band o2 sensor this could have been increased some. There were no areo mods done to the car. It was rolling on 255 60 15 rear bf goodrich and 225 60 15 goodrich front. Trans was a t5 with stock 7.5 rear from a 86 mustang with 3.8 v6. With the kind of areo mods you talk about, I could have got 30 mpg highway easy, and still roasted tires any time I wanted.
I am just wondering if there are any other brands of ECM kits around I don't know about? I am preparing to install a 3.0 liter SHO V6 into a 1989 mustang coupe (non fast-back) with a t5 and 323 rear gears. I have talked to people that have owned SHOs and have gotten 30 mpg plus. These engines make around 245 HP under full throttle. With an aftermarket ECM and some of these areo mods; who knows, maybe 40 mpg highway and still fun to drive.

03-07-2012, 09:52 PM	#1 (permalink)
jdedmnds1 EcoModding Lurker Join Date: Jan 2012 Location: midwest U. S. Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts	aftermarket ECM Has anyone tried to fabricate an aftermarket ECM? I have a Megasquirt 2 I used on a 86 Mustang convertible with a 5.0 v8, and got 26 mpg on the highway with cruise set at 70, with the top up. With the addition of a wide band o2 sensor this could have been increased some. There were no areo mods done to the car. It was rolling on 255 60 15 rear bf goodrich and 225 60 15 goodrich front. Trans was a t5 with stock 7.5 rear from a 86 mustang with 3.8 v6. With the kind of areo mods you talk about, I could have got 30 mpg highway easy, and still roasted tires any time I wanted. I am just wondering if there are any other brands of ECM kits around I don't know about? I am preparing to install a 3.0 liter SHO V6 into a 1989 mustang coupe (non fast-back) with a t5 and 323 rear gears. I have talked to people that have owned SHOs and have gotten 30 mpg plus. These engines make around 245 HP under full throttle. With an aftermarket ECM and some of these areo mods; who knows, maybe 40 mpg highway and still fun to drive.