[racerc2000]

yea. and depending on specific k24. a k20 or tsx head swap is not a direct swap. some need fly cut pistons to clear the valves.

one thing I would like to see up close is.... the 2012 civic si engine.

k24 only intake side i-vtec and seems like they found the sweet spot of economy vtec.

2012 Honda Civic Si (US)
Displacement: 2,354 cc (143.6 cu in)
Bore and Stroke: 87 mm x 99 mm (3.43 x 3.90 inches)
Compression: 11.0:1
Power: 201 HP @ 7000 rpm
Torque: 170 lbs·ft @ 4400 rpm
Redline: 7000 rpm

considering the 2010 element is
Compression: 9.7:1
Power: 166 hp @ 5800 rpm
Torque: 161 lb·ft (218 N·m) @ 4000 rpm

and 2010 crv
Compression: 10.5:1
Power: 180 HP @ 6800 rpm
Torque: 161 lbs·ft @ 4400 rpm

I can see the tsx vs honda trucks being a diff tune but is it really necessary to have so many changes even during the same year on simmilar vehicles?

it should have just been k20 (car) k24 (truck) but I guess that would be too easy so now they have 3 diff k24s for 2012

and now the exhaust manifold is cast into the head

2012 Honda Civic Si (US)
2012 Honda CR-V (US)
2012 Honda Crosstour