Economy camshaft swap
Introduction
Economy camshafts are the opposite of "hot" cams favoured by racers. But rather than aiming to increase high RPM performance, economy cams are cut to enhance efficiency at lower engine speeds where ecodrivers tend to drive.
"Cool" cams may have lower lift, duration and more advanced timing than regular cams, resulting in more low end torque at the expense of high end power.
The Geo Metro XFi had a factory economy cam, and owners of garden variety Metros regularly swap it in place of the standard one.
Contents
Instructions for mod
Information required: How do people perform this modification, pictures, problems, what to look out for
Information required: A listing for different ways to do this if its different on different types of cars
User experiences
Please enter your user name and any relevant data in the table
| User Name | Car Make, Model, Year | Cost of Mod | Time to Perform Mod | MPG Before Mod | MPG After Mod | MPG improvement guess | Instruction Link |
|---|---|---|---|---|---|---|---|
| Example Data Saand | Example Data Mazda, 626, 1991 | Example Data $5 USD | Example Data 1 Hour | Example Data 27.2 | Example Data 29.8 | User mod detail or measurement detailed data |
Problems / Consequences of mod
Information required: What are the consequences of the mod, Eg: drivability issue, stalling, engine wear,
References
Forum thread links
External links
International heart transplant: the Blackfly gets an XFi cam
