^ agreed - sticking to the one dyno outfit is categorically the best practice for keeping track of health/gains from engine mods.
Using different rolling roads is ok purely for fun and/or comparisons with other cars on the day, ie rolling road meet or car shows.
Not even a rough guide, as in the same day you could go to three different dyno's and get very varied figures. Not so much of an issue for those BIG power cars as 600bhp or 620bhp isn't going to loose anyone sleep lol 275bhp to 295bhp for example possibly could - my 2c
In all honesty number chasing is never a good idea as it tells very little about how quick a car is in real world terms. As long as the torque delivery is smooth that's more important for an engine than peak power for a split second.
Remember on a track Sabine would make mince meat of any of us in a factory standard Zed compared to normal folk in a lightly modded one, point is enjoy the motor
Lovely motor pal, saw it Sunday. Hhhmmm lightweight crack pulley bigger throttle body? You'd probably get 300bhp+ on a dynojet and from my understanding JPS read low for figures full bolt on DC5 made 226bhp and our red DE on display made 262bhp iirc (not standard car)
yes can still go on either side of the vehicle as the tyres are classed as asymmetrical
visually you'd think both of those tyres would clear water better being on the drivers side.