Hey, I am considering building my 2001 s2000 for ITR. A few DE's after buying the car I destroyed the original 2.0L engine and replaced it with a 2.2L.

Do i need to replace my current engine for a 2.0L before i can legally participate?

both the 2.0L and the 2.2L s2000 are placed at 3005 lbs. I am not sure why the 2.0L with less torque would be rewarded with the same min weight, but anyway...

is there some rule that would allow me to keep the 2.2L engine? maybe updating the transmission?

thanks for the help.