We love getting your feedback, and just received this great testimonial from Jim M in Georgia, who purchased a supercharger for is 2007 Yukon he uses to tow his race car. When I changed from a Class 1 trailer to a Class 3 trailer, the 5.3 just could not easily pull the load. The Yukon was in 3rd gear at 3K rpm at 70mph on flat road and any incline meant that it was downshifting to 2nd gear at about 4,400 rpm and struggling to maintain speed. This was a recipe for engine disaster. I chose Magnuson for a supercharger because it was the only maker who had a program for towing AND I love the fact that the OEM cold air intake could just be plugged in with no mods needed. Now, I cruise at 1,800 rpm in 4th gear at 70 mph on flat roads and go up inclines for quite a distance before the transmission shifts to 3rd gear at 3k rpm and I back off the throttle as it will begin accelerating up the hill. I also noticed an increase in gas mileage as I am operating at a much lower rpm. This has also helped my water and transmission oil temperatures to go down noticeably. I plan on keeping this Yukon for many years of towing.
Posted on: Fri, 09 Jan 2015 00:39:27 +0000