As I found out from Swede recently:
https://www.volvoforums.org.uk/showthread.php?t=328539
Going over 300hp with a b230fk is risky on stock rods.
With the hybrid 15g by Owen developments (
https://postimg.cc/gallery/c0pfshw) and accompanying parts that I bought off of someone on here and fitted, he told me that it would make about 330hp whilst running 1.8 bar of boost. Does that number seem believable?
If so, how should I go about making less power? Turning down the boost causes the car to run very rich because it’s mapped for 1.8 bar. One way I’ve been told is to get a maxx ecu mini and map the fuelling that way. That same person said that I should convert the engine to wasted spark because apparently it’s much better (not for this situation just in general).
I would like just under 300hp because I do not want to get into changing the rods.