Increasing rev range of a K20Z2 (2006- Type S)

[PooM]

Hi guys

I have a 2006 Accord Type S, the 2ltr version (K20Z2). However, it only revs to 6800rpm.
Now as the K20 engines are all very similar, with different compression and cam profiles. I was thinking of purchasing a pair of EP3 (K20A2) camshafts and matching ECU from an EP3.

Would this be possible?

Cheers guys!

Steve

 

[Mr Honda]

As far as I'm aware, this may not be as simple as replacing cams as it was in the b series engines. The basic k20 is vtec on intake only cams, so not sure if cam pulley/adjusters are needed too to make it vtec on exhaust too, then you get into the software side of things which is way over my noggin!! :blink: :blink:

Maybe look at a k20 type r/Euro R total swap??

 

[Stevearcade]

My guess would be it's not that simple! But you say you have a K20, but under your profile picture it says you have a CL9. CL9 is a 2.4. The 2.0 is a CL7.

So which is it? CL7 2.0 or CL9 2.4. Or both! That would be cool.

Either way, perhaps talk to forum member Littlebo. He's a tuner based in the Ukraine who specialises in Hondas. He now has a UK rep in forum member UKCL9 who installs Littlebo's remaps. Littlebo may be able to advice and have an alternate map for your ECU to support the modified cams you're thinking of installing.

 

[dinoc]

Swapping the cams, won't turn the engine into an EP3 one, the things are more complex and different.
You better swap the whole engine and transmission, or probably much simplier a k24 engine.

 

[Fredoops]

K20z3 don't have exhaust VTEC, so your k20a cams won't work.

Means you need to either do a complete k20a2 engine swap, not sure how that works since EP3 had electrc steering.

Or you need to do a complete cylinder head swap with custom engine management. you probably need the cylinder head from a USDM Civic SI (k20z3) or the RSX (k20z1), along with new pistons (to up the comp ratio from 9.8 to 11). Along with the oil pump from those engines which is designed to take higher load.

In otherwords.... You're probably better off doing a Kfrank build an use a k24 bottom end.