Gervin Posted March 5, 2016 Report Share Posted March 5, 2016 I just installed a used magnacharger mp112 on my 04 Ss. Everything went good Untill I hooked my boost gauge up l, it has the 3.4 pulley on and it's only pushing 3 lbs of boost. I swapped in my 2.9 and it's making 6 but I understand that it should be making closer to 10 lbs. I'm completely new to Superchargers, belts good and tight so I don't suspect belt slip. I don't really know how to test the bypass by it moves freely. Any help would be great! Quote Link to comment Share on other sites More sharing options...
Gervin Posted March 6, 2016 Author Report Share Posted March 6, 2016 Update: pulled the line of the bypass valve, made a pull and still 6 psi at wot. Quote Link to comment Share on other sites More sharing options...
xr4tic Posted March 11, 2016 Report Share Posted March 11, 2016 Is your engine bone stock or do you have other mods? Quote Link to comment Share on other sites More sharing options...
Gervin Posted March 24, 2016 Author Report Share Posted March 24, 2016 Yeah the motor is stock. But I found out that while off my boost Gauge reads -3 vacumme. So 9-10 psi through the 2.8 pulley is about right, I went a head and went back to the 3.4 Quote Link to comment Share on other sites More sharing options...
Black2003ssnj Posted March 26, 2016 Report Share Posted March 26, 2016 Do u have the crank pully pinned , they can spin on the crank Quote Link to comment Share on other sites More sharing options...
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