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Originally Posted by FLYNAVY30
After allowing the self-tuning EFI to learn for 1000 miles, I took it to VA Speed for a final dyno tune to smooth the fuel mapping by hand. The self learning EFI systems are really a 90% solution....they get you very close, but especially with an automatic transmission, having someone who knew what they were doing tweak the fuel and ignition maps, and a few of the shift points, made all the difference in the world. The truck drives like any factory equipped 6.0L LS truck. Through the end of 2015 and most of 2016, I put a fair number of miles on the truck. We drove Norfolk to Boston and then Maine again to visit friends, went up to Charlottesville, and then took the Blue Ridge Parkway all the way down to Asheville and back to Norfolk, then drove from Norfolk out to South Bend, Indiana to unfortunately watch Texas get destroyed by Notre Dame.
The one thing all of this road tripping did reveal was that the brakes needed to be addressed. The truck was factory equipped with front discs and rear drums, all of which were tired and needed work. I'm not particularly savvy on rebuilding drums, so I started searching for a viable disc conversion on the rear. More to follow.....
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Really enjoyed this latest installment, Greg. Traveling is what my wife and I plan to do now that I'm retired...and the East Coast is on our "must do" list! The EFI and Brake enhancements are both on my wish list for down the road a bit...but I'm absorbing as much intel as I can before jumping into those projects. I'm actually impressed with how nicely the original brake set-up on my Suburban handles bringing this big truck to a stop...but there's definitely room for improvement! My 454 has a completely dialed-in Q-Jet (for sea-level), but as I plan on traveling to various elevations, the EFI sounds like the way to go. I currently have a 45 gallon vented tank that was dealer installed back in it's early years that I recently had out to change the sending unit. The tank is spotless inside and the outside was just covered in the normal road grime and dust from living in the desert for so long. I'd love to keep the tank, but do you know what would need to be done to utilize it? Thanks for the build thread...and I really like how you are integrating the "Adventure" aspect into the story!
Woody