How much boost can a stock K20Z3 take?

How much boost can a stock K20Z3 take?

They’re crap. But stock internals should hold 14-16lbs of boost. RSX-S’s have been known to hold 400hp on a stock bottom end.

What cars came with a K20Z3?

Honda has put a new K20 series engine in the new 2006 Civic Si. The new K20 series is called K20Z3 and has a number of improvements over the previous K20Z1 found in the 2006 Acura RSX Type S. The engine now features a bigger balancer shaft to smoothen out the revs and get rid of any vibrations.

What’s the difference between K20A2 and K20a3?

The K20a3 is prone to throwing rod bearings. It is not built for spirited driving. The K20a2 is basically a K20a Type R engine. The K20a Type R has better cams, 11.5 pistons, smaller crank pulley, and the block is pulled off the production line to have the connecting rods hand torqued.

Can you put a K20A2 head on a k20a3?

OK so yes the k20a2 head bolts up perfectly to the k20a3 block with no problems at all except maybe a few longer or shorter hoses.

How much HP does a k20a3 have?

K20A

Engine	Application	Power
K20A2	2002–2004 Honda Integra Type R ( AUDM / NZDM )	200 hp (149 kW) @ 7400 RPM
K20A3	2002–2006 Acura RSX	160 hp (119 kW) @ 6500 RPM
	2002–2005 Honda Civic Si	160 hp (119 kW) @ 6500 RPM
	2002–2005 Honda Civic SiR	160 hp (119 kW) @ 6500 RPM

Is it worth building a k20a3?

k20a3 is not worth building. you need high compression to be able to utilize power at high rpms k20a3 compression just isn’t high enough.

Is K20A3 a good motor?

The K20A3 has the power of a B16, more torque though. It is a decent motor compared to the B-series.

Is K20A3 VTEC?

There is no VTEC mechanism on the K20A3 exhaust valves. Basically, this head does not breath well compared to the K20A2.