Building A K20Z2 Engine Using K20A/A2 Head - K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum
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Old 11-08-2009, 04:33 PM   #1
babyk
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Default Building A K20Z2 Engine Using K20A/A2 Head

Hi guys

I am currently having a K20Z2 which is similar to the K20A3 engine, which has no VTEC on exhaust.

I am currently thinking of 2 things, either upgrade the camshaft alone to Brian Crower K20A3/K24 Stage 2 or upgrade the whole head to K20A/A2 which consists of camshaft, valve springs, valve seat and rocker arm

The bad thing is I am running on a Automatic Transmission, not sure which way of modification would squeeze out more juicy power. Need advise.

I am able to flash my current ECU to 08-09 Civic Si with K20Z3 or 07-08 JDM FD2 Type R ECU which has better advantages without tuning, which means if I do the head job, I am able to run like a stock K20A/K20Z3

Do I need to machine any part of the camshaft/rocker arm if I am going for the K20A/K20A2 head job?

Please let me know your experience on building this motor, need input from you all with experience in building K20A3 with K20A2 head

If everything goes well, i will start the project soon, but now have to make decision on either upgrade camshaft alone or K20A/K20A2 camshaft+rocker arm

Thanks
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Old 11-09-2009, 05:36 PM   #2
bodyman
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Default Re: Building A K20Z2 Engine Using K20A/A2 Head

k20z2.... which car did this come in??
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Old 11-09-2009, 10:05 PM   #3
babyk
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Default Re: Building A K20Z2 Engine Using K20A/A2 Head

Quote:
Originally Posted by bodyman View Post
k20z2.... which car did this come in??
hi
it comes in the 8th Generation Civic FD2 2.0 non Type R

K20Z2

* Found in:
o 2006- Acura CSX (Canada)
+ Displacement: 1,998 cc (121.9 cu in)
+ Compression: 9.6:1
+ Power: 155 hp (114 kW) @ 6000 rpm (SAE net J1349 Rev 8/04)
+ Torque: 139 ftlbf (188 Nm) @ 4500 rpm / 188 Nm @ 4200 rpm (Singapore)
+ Redline: 6800 rpm
o 2006- Honda Civic (JDM)
+ Displacement: 1,998 cc (121.9 cu in)
+ Compression: 9.6:1
+ Power: 155 hp (114 kW) @ 6000 rpm
+ Torque: 139 ftlbf (188 Nm) @ 4500 rpm
+ Redline: 6800 rpm
o 2006- Honda Accord(Europe)
+ Displacement: 1998 cc
+ Compression: 9.6:1
+ Power: 155 hp (114 kW) @ 6000 rpm
+ Torque: 139 ftlbf (188 Nm) @ 4500 rpm
+ Redline: 6800 rpm
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Old 11-19-2009, 10:09 AM   #4
babyk
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Default Re: Building A K20Z2 Engine Using K20A/A2 Head

OK...i am going to start off this project soon and I shall post up the pictures once I got it
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