Horsepower hunting :D

[abit]

So as the title says, maybe someone could help and give some advises what to do next.
now I have
m20b28 engine (m52b28 crank, m20b20 130mm rods, late m20b25 pistons)
285/285 degrees camshaft
m50 green top injectors
3.5bar fpr
ported head (also matched with headers), sebring exhaust header with 60mm exhaust system to the back
stock intake with cone filter
engine runs with remaped m50 non vanos ecu

engine now produces 211hp and about 274nm.

what can I do to make some few more horses? :D
first is that I don't want to bore it etc, so making 2.9 or 3.0 is not what I want to do.
now engine has about 9.75:1 compression ratio, so we could shave some material from block to make it higher.
what else, install forged rods? make lighter internals?
itb intake?

Or just donf f*ck more with this NA setup because gain could be just few horse, so just put fan on it? :D
Why im asking it? car is daily driven, I want more hp, i love m20, but really don't want to go turbo, actually I want, but build costs for turbo....meeh

[whodwho]

Sounds like you have a decent base for the engine, no reason to tear it down if it is still solid. Put a setup of RHD ITBs, may not bump the overall HP much but really wakes it up and is a hoot to drive.

[digger]

proper ECU and RHD itb setup.

adjustable cam gear, could try with a different cam, the catcam 285/285 is usually a little flat in the bottom end

would not bother with a tiny bit more compression or making things internally lighter. lighter flywheel is good fun

[supkev]

Maybe a extrude and honed intake or a Miller MAF intake or similar setup.