lol... here we go.
i agree, it's certainly easier doing up just about anything else..... having the engine in the front with decent access, having a front intercooler, parts availability, and every second mechanic reckons they know SR20's and EJ20's... and a bajillion boy racers who have tried and failed to learn from.
I reckon that lot makes a bigger difference than any stock differences between a 3S, SR, EJ, or 4G.
shootout mode is great... i think Dyno Dynamics in shootout gives you the best indication but there are still a FEW variables (different modes)... when mine got done last (in shootout) my mech had just changed his dyno to 4wd and cars that HAD been reading 245&260kw on the 2wd were getting 215 & 230kw... pretty consistent 30kw down from the 2wd dynodynamics in shootout. I'm not sure (possible teething problems with new dyno, i'll have to see if it's sorted now) and there's always air temps... Dyno's are a tuning tool and good for a laugh, a sausage sizzle and discussion.