What do you mean by more aggressive cams? Think about how an engine works and what it needs to work, then consider what large duration and lift cams do to an engine that doesnt have variable vaalve timing and onl 2L of low compression displacement
I wish i had the money and time (expertise) to play with cams. I tried 260/8.8 cams and the results were not great. Witha bit of tuning i was able to get back most of the top end that i had lost, but was never going to get back the bottom to mid. At this point i pulled the pin.
Thinking back, it was a bit optomistoic to think a little RB20 with a big compressor but smal exhaust housing was going to get a lot from cams with such an increase in duration. Going back to basics...i may have got more out of the setuyp if i had a bigger exhaust housing!?!?!
Dont know for sure. Needless to say though i am with others when i dismiss what SR20s need to work. They have rocker arms, different comrpession and head designs, different inlet manifolds not to mention they are a 4 cylinder. Too many variables.
For the time being i am just waiting until i can find out a bit more about water/methanol injection. Then i may consider soem 256 cams, a change to a 10cm exhaust housing then a re0tune with as much ignition as the engine can hanle. See if i can bag a usable 280rwkws at 22psi out of a std RB20 bottom end. At the moment i cant make any more power because of injectors and i dont thinkk the little 8cm housing is liking th eboost/exhaust flow