Congrats on the results. Good job guys!

A new clutch

Congrats on the results Sam! 450WHP is what I wanted out of the S/C kit and now it looks like there is a clear path to get there. That TQ curve is phenomenal.

Just when I was going to give up on the stage 2... This happens :)

Are the dyno charts from the stage1 at 8lbs of boost?

Yes it is .

Sam

Can someone please explain to me what is stiffer motor mounts? how its a nice upgrade??

They allow for the engine to move less when the engine tries to twist itself on the motor mounts due to urethane being a harder material. It will allow for slightly better engine response as there is no movement allowed when compared to the softer and thicker rubber stock mounts.


Does anyone know how big of a job is it to install new motor mounts?

Prob not that hard since it'll be put in at the same time as the stage.2 kit

How about a stage 1 @ 10psi if possible or a Stage 2 at 8psi to compare apples to apples...the way you have this comparison laid out doesn't make sense.

10 PSI is goog to go on the bottom end? Sounds like some folks are going to need to get some forged internals................namely me. Why did you do this to me GTM? I thought I was all set to go with my F/I build and then you spring this on me, lol.

Because stage 1 is within its efficiency range at 8PSI and stage 2 is at 10PSI, it is designed to show you how a stage 2 kit can go farther than a stage 1.
Which is also why Sam said the stage 2 does not need a smaller pulley as it did not show any increase in power, similar with the stage 1.

I thought the motor can hold up to 9psi safely, since I have LTH's it might drop the psi but still am curious

No one can give you a number of "maximum safe boost" because theres no way to really know how long the internals will last and peoples definition of "safe" varies. We know that 8psi seems ok to run for long term, 10psi shouldn't be much worse. Sam/GTM seem to plan on running 10psi here, so they feel its a safe enough level for the engine to last reasonably long with their tuning.

It has more to do with the supercharger being maxed out ,and to much over lap. The stage 2 flows 11% more than the stage 1, if you compare the two dyno charts that Sam posted it adds up to that.