I ran the upgraded stage 1.0 to a stage 1.5 with meth injection to 640 WHP and the 84mm pulley. Ran around 12 lbs of boost. Unfortunately, I have no proof and no record of it. The supercharger has since been removed and sold.

On to the next project :tup:

How hard is the install going from the 1.0 to 1.5?
I should have "all" the new pieces which include, 2 new intake pipes, intake filter pipe (I believe?), 1 engine mount, and a few accessories to re-route PS line.

Anything else I am missing or should know?

Yes I remember how much of a pain it was to remove the stage 1 intake pipe.
Recommend the you drain all the oil out of the supercharger before doing that job.

Oh that is already done, both steps.
My SC seized because we lost all the oil for it. :(

Do you have the 1.5-SC housing, I have a spare,

What injector are you running, 650cc or larger.

If you need the PS parts, I have a full kit, and the Fuel Pump voltage kit I'll make you a super deal.

I can mod your base tune to work any injectors, If you stay with the 600cc injectors you may run lean and pop the motor. Do you have WB O2?

I have all the parts for the 1.5 upgrade, doing a full fuel upgrade and re-tune.
1000cc injectors
Fuel pump
Fuel return
ECUtek
Flex Fuel kit
93 to e85 tune

Going to see what this kit really can do on pump fuel and corn.

What pump the 450?

Probably won't need to go to the 450, will probably use the 340 as it has shown to be plenty and I am not really going for 600+whp, just hoping to break 500whp.

I'd like to find an 88mm 7 rib pulley for my stage 1.5 kit. . I have a 84mm and a 90mm pulley to swap or sell.