just wondering if any1 had the pulley upgrade from jaguarxp? before installing mine i put it up 2 the current one that is on my supercharger & they both are the same size in diameter& looked pretty much the same. im just wondering if there should be a noticable difference......im thinking maybe the owner before me had the upgrade done

 

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I run 12 lbs of boost in my Vett. 557hp and 554 torque at the rear. The engine is built for it.One thing to remember is when you add boost, you have toretard timing. The best thing is wateralki injection and you will feel the difference with it.Its for the deadly ping. If you can,t retard the timing, you will melt the pistonsand thats for sure. Stock engine should not run more the 6 lbs. 8 lbs wateralki injection needed. Helps save the engine.
If you want to know more about wateralki injection. Check with blowerworks.net Gregs a good friend of mine he didmy vett. Tell him Gene told you to call. This man is the best in the business in supercharging. Good wateralki injection isn.t cheap but will save your engine from the deadly ping.
Hope I was some help to you.
Gene