i've always heard that guys LOOSE boost when going with a aftermarket cam. Although, i think i understand what you're saying is that you will be gaining boost over you CURRENT cam since it's overlap is causing boost loss now.?

this is the only reason i havn't done the GT2-3 cam yet. I'm running a 2.8 pulley on my LQ9 and only seeing 8lbs of boost max. i don't want to loose any at all. i really would like to be making 10psi.

 

LOL, put that on the list of things to be worried about huh?!

 

Anything you do to remove airflow restriction in your engine will reduce your boost.Ported heads,LT headers and a longer duration cam all will reduce your boost but not your horsepower.The reason the GT2-3 cam works so well is that it delivers good performance within the working parameters of the MP112 supercharger.If you drop 2 lbs of boost while gaining 30 hp,you have a win-win situation.You don't have to worry as much about detonation killing your motor and you are making more power.

 

I can give a real world testimonial to that. When I put the LTs and true duals on, I lost 2psi. I went from 9 to 7. I was mad until the tuning got done and it made the exact same power on 7 as it did on 9. So, 2psi less strain on the engine and same power level. My hope is that the GT2-3 will get me the 2psi back because of the negative overlap. Plus I think the 118.5lsa will give me much better idle and street manners than my current 112lsa. Even though I will miss the slight lope in the exhaust.

 

What's everyone's opinion on how the GT2-3 cam would work with 1.8 rockers?

 

I run Comp 1.75s with mine with no problems,but I would check for coil bind on the valvesprings before trying 1.85s.With 1.85s you'll be looking at .629lift.