04 Joe Gibbs Performance Silverado need help with tune Jet Dynamic Spectrum Tunner
#1
04 Joe Gibbs Performance Silverado need help with tune Jet Dynamic Spectrum Tunner
I got a 2004 Joe Gibbs performance Silverado truck. It has a magnacharger from Gm. It has 70,000 miles on it... I just change the SUPERCHARGER pulley from the stock 3.60 to a dub 3.20. I need help to tune it. At 3500 rpm you can here valves chatter till 4500rpm. I'm using the Jet Dynamic spectrum tuner. I also what to change shift point and make it shift hard. CAN ANYONE HELP??
#2
I would put the 3.6 back on there until you can take it to a tuner that has HPTuners. That's not the valves chattering. You are going to break some ring lands if you don't stay off the gas. I don't know what a Jet tuner is?
#4
[QUOTE=Bigdawgmichael;18963326]I got a 2004 Joe Gibbs performance Silverado truck. It has a magnacharger from Gm. It has 70,000 miles on it... I just change the SUPERCHARGER pulley from the stock 3.60 to a dub 3.20. I need help to tune it. At 3500 rpm you can here valves chatter till 4500rpm. I'm using the Jet Dynamic spectrum tuner. I also what to change shift point and make it shift hard. CAN ANYONE HELP??[/QUOTE