the description says he was tuned at 'The Boost Creep' which is in Longmont, CO at an elevation of 5000'. Solved.

Ouch.

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I have the Si supercharger (not the Sci), a2a, 9lb pulley, cjm s1.se, tuned by Seb on flex fuel. My car made 541 @10psi on e85.

dayum!

also. @Redondo:
Do you also have 1050x++ injectors?
And what is the difference between SC and SCi head units if I can ask? :o

Yep, 1050x injectors. The Sci has a lower cfm rating. The new kit that Topgunz will be selling comes with the Si supercharger. When I bought mine from Stillen I paid a little extra for the Si unit.

Darn, if I knew that I would have done the same as you and pay a bit more for the Si unit :(

Seeing as I purchased the A2A kit which works with the SCi trim I have, I'm pretty stuck with the SCi trim so I will most likely send it to 928 sometime next year or toward the end of this year, to get the super vortech upgrade.

Live and learn :D

625 - 650 whp should be plenty enough before I crave more power after that anyway xD

The super vortech mod is a better set up than the Si trim, you can push the sc further with that upgrade.

You guys are so smart! :tiphat: I'm so glad I found this board!

P.S. Glad I'm at sea level!

Well yeah but that would mean if the super vortech upgrade was applied to both the Si and SCi trim, the Si would still win out no?

I believe the Si trim is basically an impeller upgrade to the Sci (I could be wrong) and you would obviously be changing that out with the super vortech upgrade.

Does it also include the ceramic bearings upgrade as well or just impeller if true at all?

No, it definitely doesn't include the ceramic bearings.

Oh, haha ok thank you for the information!

When I change out my supercharger pulley to either the 2.85 or 3.00", I'm going to keep the stock bearings, we'll see how long they last. :rofl2:

You already have 9psi pulley on serp side and a 3.47 pulley yeah?
If so, all you need is the 3 inch one since the 2.85 will overspin it xD