Harrop Hurricane MAF vs Speed Density

[RD in SD]

Here is a link to a pic of my car on the Corvette Forum scroll down a bit and you will see them. This was designed with a lot of input directly from Harrop.

http://forums.corvetteforum.com/c6-z...-any-pics.html

[etmotorsports]

In my experience speed density tunes always get better mileage than maf tunes that is if they have been dialed in correctly at part throttle. It is strange to see but alot of engines can cruise at 12.0:1 afr and seem to drive ok until you lean it out then you can see the difference.