Thread: engine mods
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Old 09-23-2014, 10:00 PM   #6 (permalink)
Mustang Dave
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Join Date: May 2009
Location: Northern Arizona - It's a DRY cold..
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Trigger - '07 Ford Mustang V6 Premium Coupe
Team Mustang
Sports Cars
90 day: 32.76 mpg (US)

Big Red (retired) - '89 Ford F-250 4wd Custom
90 day: 18.13 mpg (US)

Big Red II - '13 Ford F-150 FX4
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Quote:
Originally Posted by squirrl22 View Post
Why is there no engine mod forum? I modded my first car, a 1974 Ford Capri, back in 1975 using a Supertune kit. It jumped my MPG from 22mpg to 36+mpg! It involved changing the carburator jets, advancing the timing on the distributor, and advancing the timing on the camshaft. I did all this in my driveway, in Michigan, in the winter, on a Saturday!
I know people regularly get a "tune" for their diesels which can increase MPG substantially- I would think there would be more interest in this!
In May, 2009, I purchased a Hypertech "Max Energy" Power Programmer for my 2007 Ford Mustang.
After 5 years of observing fuel log entries with the power program installed vs stock tune, It doesn't make a noticeable difference in fuel economy unless the Premium Fuel Power Program is installed (and burning Premium fuel). FE is worse with premium fuel, due to the lower BTU content of the fuel.
Running the Regular Fuel Power Program doesn't noticeably lower my fuel economy, and I enjoy the power increase and especially enjoy the increased torque below 2000 RPM.
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