View Full Version : MAF or Speed Density

03-19-2007, 11:15 AM
I currently have an LT1 in my 68 with the MAF system. I am considering going to a SD system to clean it up (visually). Are there any advantages/disadvantages for doing this? I have some bolt ons (cam and headers) but not expected to do anymore with it. Any help would be appreciated.

03-19-2007, 12:38 PM
Th biggest dissavantage to using SD on you motor would be air fuel ratio changes due to ambient temp changes. Otherwise, it might even run a touch better.

03-19-2007, 12:56 PM
speed density with the correct tune will be as smooth as maf. There are tables for adjusting the air temp compensation in the stock computers, and most good aftermarket systems also use an air temp sensor and closed loop to keep the a/f correct.