When I first ordered it almost a year ago, it was gonna go in my 4.8L. Well we ended up finding a 6.0L for a decent price and did the swap with the SC/engine at the same time. I was able to get a 3.25" pulley from Magnacharger. Swapped it out and had it dyno tuned. It's running at around 4PSI at the moment, I know I have a boost leak as Justin informed me of this while tuning the truck.

Never really had a chance to look for this as my builder has been really busy and I daily drive the truck and don't have time to have him look at it closely.

Question I have is there any diagrams on these maggies, that he can look at and to help him find this issue? Any tips on doing this? With my setup, how much boost should this thing be hitting?? Thank you for you input in advance, I'm new to the whole performance world and still trying to understand this stuff.

Truck specs are on sig.

 

go to the magnacharger website and have a look through the install manuals.

 

Stock 6.0L with a 3.2 Pulley with a 112 Radix should net around 6-7 psi...... I doubt you lost much boost with slp shorty's and a catback. The cam may have dropped it a little but i would not say to 4psi. It is a bitch seating the supercharger on the heads with those gaskets that is the only place I could see leakage......LQ4 or LQ9?

 

I have the install manual at home that came with it. We capped off everything that was not being used and checked for air leaks from all the connections. Gone over install directions and haven't found anything out of the ordinary.


Truck has a LQ4 from a GMC.