does anyone have these mods on a 997.2S PDK car, ifso, whos kit, what power, etc etc
Thanks

 

Does not exist for .2's

Jason

 

http://www.tpcracing.com/products/TP...996-Turbo-Kit/

At the bottom:

"he TPCRacing CT-520 is available for all Porsche 997.1 and 996*** models w/ 3.4L, 3.6L, and 3.8L engines.

 

FWIW, there are pros and cons to each system. Turbos are more efficient as they rely upon waste (exhaust gas) to spin their impeller blades, whereas Superchargers rely upon the power of the crank to spin their inpeller blades, which is parasitic. On the flip side, Turbos experience lag due to their need to build up enough waste (exhaust) gas to spin their impeller blades fast eonough to build boost pressure, whereas a Supercharger's impeller blades are directly tied to the RPM's of the crank, so they are always ready, and the boost builds in a 1:1 linear relationship to RPMs.

When adding either to an engine designed to be naturally aspirated, one must consider the stress of the additional power. My Supercharger is running 6.1 psi at redline and WOT, which I consider to be very conservative and at low risk to creating problems. I would feel safe going a bit higher, to perhaps 7.2 psi, although at that point I'd be pushing 560hp and I'd be exceeding the capacity of my brakes, suspension, and tires. Might try it next month for fun, we'll see...
CATTMAN

 

CATTMAN, I am considering a SC for my C2, how do you get more boost out of it? its says 470hp, how do you get more??

 

In a nut shell... a smaller pulley

Jason

 

Among other tweaks to ensure appropriate A/F ratio, as Cattman and Stacy will point out.

 

To generate more boost, you need to spin the impeller blades faster. Since you can't go over 7,600 RPMs and the SC's impeller is driven by the crank's RPM's, you change to a smaller pulley. The smaller pulley allows the same crank RPM to spin the impeller blades faster, so more boost.

However, that's not the entire story, there's some art to making sure your AFR is where it needs to be. It's pretty simple though. I may tinker with yet a smaller pulley just to try it, but honestly, the rest of the car can't cope with much more HP- it'd be scary!
CATTMAN