SC14 supercharger kits
In relation to your original question..
No you dont need to change your memcal or have it remapped to run 3psi.
BUT! Your air fuel mixture MAY become dangerously lean, especially on the 2 rear cylinders. A quick inspection of spark plugs will clear any doubts.
If you really want to run 8 psi with the pulley kit from CRS :driving: you will find that you will be needing your memcal remapped before you take to the streets. Also a rising rate fuel pressure regulator, hi-flow fuel pump, larger injectors, 2 bar MAP sensor ( Non ecotec ), Lots of Dyno time and a shitload of cash. When i was playing with these kits i found the car would start and idle and even rev freely in neutral, althought it blew a lot of fuel smoke.
Put it in drive or in 1st gear and take off.....:bang: As soon as you place the engine under load and open the throttle as much as to create enuff vacuum to close the (constantly venting) blow off valve, the inlet pressure soars up to almost 8 psi confusing the absolute **** out of the engine management system causing an eratic mis-calculated fuel compensation. Put simply.... you could get out and run faster.
Ideally it makes sense to stick with a stock CRS kit for 2 grand and be happy knowing that you can hold your own against most 5 Ltr 185 Kw commodores.
Hope this make your decision easier..
