2004Denali

I have a wide band and my A/F ratio is 11.5 at WOT and when it shifts into 3RD it goes to 10.5. So it actuallt gets richer. The next time I drop the tank I will check the O rings. The FPR is in the tank and is non adjustable. I am also going to replace the wire going to the fuel pump with a thicker guage wire and see if a corvette FPR will fit in my truck. Thanks for your input Mark

Thanks, I launched it as hard as she would go, My 60' time was 1.9 truck is heavy 5980 LBS

How many of you are having problems with your fuel pressure. I have dropped the tank twice to replace the pump and added a magna-volt, no change. I start out at between 58 and 60 psi at idle or cruise and it will drop down to 53 psi at WOT even taking off slow it will go 60-59-58-57-56- when truck has been running for awhile and is hot my cruise psi will be 55 if I do a WOT at the starting point of 55psi it will still only drop to 53psi. It has been like this for eight months, Last week for two days only my fuel pressure was up 8psi to 68 at idle 64 at cruise and 59 at WOT, For those 2 days I drove across 3 states and my pressure was fine but my 1-2 shift was 3 times harder than it ever has been, So to recap 1-2 shift is to hard but fuel pressure is great. The tranny is vacuum modulation. I wiggled and tugged on the vacuum line ontop of the tranny and now my 1-2 shif is back to normal but my fuel pressure is low. My mechanic can't find a coralation to these two problems. One should not effect the other. any ideas Thanks Mark

Pulled out my tranny from a 2004 Sierra Denali AWD with 9,000 miles on it. It was done before I put my supercharger on. Nothing is wrong with the tranny. Just thought I would pull it out and sell it before I launched it, Completly stock 900.00 dollars plus we can work out shipping. Mark

This is the first time I have heard my truck from a distance. I know I'm not a "SS" but we are AWD brothers The second run I lost. His 13.1 @ 102 mph to my 13.5 @ 99.3 mph He sprayed a 150 shot on the last run. The first run his bottle got to hot and had to much pressure so the solenoid didn't open up, He iced down his bottle befor the next run. Temps were over a hundred degrees with high humidity http://www.denalitrucks.com/video/DenaliFest06_Run1_lite.avi http://www.denalitrucks.com/video/DenaliFest06_Run2_lite.avi

When I went there I was charge 120.00 for hook up and 3 pulls Keep us posted if you decide to have a dyno day, That is if non SS's are welcome. I am AWD

There is a group purchase for new Radix on PT.net for 4000.00 I will see if i can find the thread

Granatelli's in Oxnard, Calif has an AWD dyno that will fit our trucks. That is where I have mine done. It is about 350 miles from where I live.