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Old 08-28-2007, 07:17 PM   #1
CHR!S
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K-Series Engine and Tranny Info

The i-VTEC system found in the Honda K20Z3.The Honda K series engine is a four-cylinder otto cycle engine. It is available in 2.0 L and 2.4 L naturally-aspirated variants, and a 2.3 L turbocharged model.

The K series engines are all equipped with DOHC valvetrains with Honda's i-VTEC variable valve timing control.

Honda made this engine a big improvement over its older 4-cylinder engines by including friction-reducing technologies to reduce parasitic loss.

The K-series uses a DOHC valvetrain, which utilizes roller rockers to reduce friction. The VTEC system on engines like the K20A3 is only on the intake cam, and at low RPM when not engaged, allows the engine to function as a 12-valve engine, opening only one intake valve so that the air swirls for better combustion. This VTEC system was designed with fuel economy in mind. In engines like the K20A2 found in the RSX Type-S, The VTEC system always allows the motor to run as a 16 valve engine, and when VTEC engages, its on both the intake and exhaust rockers, and opens all 4 valves even more at high RPM

The K-series motors all use DI, or distributorless ignition. It uses a coil on plug system, in which each spark plug has its own coil atop it. This allows the ECU to send the spark exactly when it wants it, and removes the need for spark plug wires.

A wide variety of aftermarket parts are available for the K engines, and tuners are finding that 240 and more bhp are available with routine modifications.


K Series

K20

K20A
Found in:
2001-2005 Honda Civic Type-R (EP3)
Displacement: 1998 cc
Compression: 11.5:1
Power: 212 hp (215 PS, 158 kW) @ 8000 rpm
Torque: 149 ft·lbf (202 N·m) @ 7000 rpm
Redline: 8400 rpm
2001-2006 Honda Integra Type-R (DC5)
Displacement: 1998 cc
Compression: 11.5:1
Power: 217 hp (220 PS, 162 kW) @ 8000 rpm
Torque: 152 ft·lbf (206 N·m) @ 7000 rpm
Redline: 8500 rpm
2002-2006 Honda Accord Euro-R
Displacement: 1998 cc
Compression: 11.5:1
Power: 217 hp (220 PS, 162 kW) @ 8000 rpm
Torque: 152 ft·lbf (206 N·m) @ 7000 rpm
Redline: 8500 rpm

K20A2
Found in:
2002-2004 Acura RSX Type-S and 2002-2005 Honda Civic Type R (EP, European)
Displacement: 1998 cc
Compression: 11.0:1
Power: 200 hp (147 kW) @ 7400 rpm
Torque: 142 ft·lbf (193 N·m) @ 6000 rpm
Redline: 8200 rpm

K20A3
Found in:
2002-2005 Honda Civic Si
Displacement: 1998 cc
Compression: 9.8:1
Power: 155 hp* (119 kW) @ 6500 rpm
Torque: 139
2002-2006 Acura RSX
Displacement: 1998 cc
Compression: 9.8:1
Power: 155 hp* (119 kW) @ 6500 rpm
Torque: 139 ft·lbf* (191 N·m) @ 4000 rpm
Redline: 6800 rpm
(* Horsepower and torque calculations reflect new SAE J1349 procedures revised August 2004)

K20Z1
Found in:
2005-2006 Acura RSX-S
Displacement: 1998 cc
Compression: 11.0:1
Power: 201 hp (150 kW) @ 7800 rpm (sae NET Rev 8/04)
Torque: 140 ft·lbf (194 N·m) @ 7000 rpm (sae NET Rev 8/04)
Redline: 8200 rpm



K20Z2
Found in:
2006- Acura CSX (Canada)
Displacement: 1998 cc
Compression: 9.6:1
Power: 155 hp (114 kW) @ 6000 rpm (sae NET Rev 8/04)
Torque: 139 ft·lbf (188 N·m) @ 4500 rpm / 188 N·m @ 4200 rpm (Singapore)
Redline: 6800 rpm
2006- Honda Civic (JDM)
Displacement: 1998 cc
Compression: 9.6:1
Power: 155 hp (114 kW) @ 6000 rpm
Torque: 139 ft·lbf (188 N·m) @ 4500 rpm
Redline: 6800 rpm
2006- Honda Accord Sport(Europe)
Displacement: 1998 cc
Compression: 9.6:1
Power: 155 hp (114 kW) @ 6000 rpm
Torque: 139 ft·lbf (188 N·m) @ 4500 rpm
Redline: 6800 rpm

K20Z3
This inline-4 cylinder internal combustion engine is found in the redesigned Honda Civic Si. It has an aluminum block with aluminum heads, and a bore and stroke of 86 mm*86 mm, resulting in a 2.0 Liter displacement.

Found in:
2006+ Honda Civic Si
2007 Acura CSX Type-S
Displacement : 1998 cc
Compression : 11.0:1
Power: 197 bhp (147 kW) @ 7800 rpm (sae NET Rev 8/04)
Torque: 139 lb·ft (189 N·m) @ 6200 rpm (sae NET Rev 8/04)
Redline: 8000 rpm

K23


K23A1
Turbocharged
Found in:
2007 Acura RDX
Displacement: 2300 cc (acura.com)
Compression: 8.8:1 (acura.com)
Power: 240 hp @ 6000 rpm (SAE net)
Torque: 260 ft·lbf @ 4500 rpm (SAE net)
Redline: 6800 (acura.com)
Bore: 86 mm
Stroke: 99 mm

K24

K24A1
Found in:
2002-2006 Honda CR-V
Displacement: 2354 cc
Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
Compression: 9.6:1
Power: 160 hp (119 kW) @ 6000 rpm
Torque: 162 ft·lbf (220 N·m) @ 3600 rpm
Redline: 6500 rpm





K24A2
Found in:
2004-2006 Acura TSX
Displacement: 2354 cc
Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
Compression: 10.5:1
Power: 205 hp (149 kW) @ 6800 rpm
Torque: 166 ft·lbf (225 N·m) @ 4500 rpm
Redline: 7100 rpm

K24A3
Found in:
2003-2006 Honda Accord (Europe, Japan, and Australia)
Displacement: 2354 cc
Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
Compression: 10.5:1
Power: 189 hp (140 kW) @ 6800 rpm
Torque: 164.5 ft·lbf (223 N·m) @ 4500 rpm
Redline: 7000 rpm

K24A4
Found in:
2003-2005 Honda Accord, 2003-2006 Honda Element
Displacement: 2354 cc
Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
Compression: 9.7:1
Power: 160 hp (119 kW) @ 5500 rpm
Torque: 161 ft·lbf (218 N·m) @ 4500 rpm
Redline: 6500 rpm

K24A8
Found in:
2006/2007 Honda Accord
Displacement: 2354 cc
Bore and Stroke: 87 mm x 99 mm (3.43x3.90 inches)
Compression: 9.7:1
Power: 166 hp (124 kW) @ 6000 RPM
Torque: 160 ft·lbf @ 4000 rpm
Redline: 6500 rpm


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Old 08-30-2007, 06:57 PM   #2
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i want a K.
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Old 09-22-2007, 10:03 PM   #3
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Nice write up. One thing to add is that the K20A3's are also found in the 02+ base RSX's, although the EP3 has a different transmission, just in case you wanted to put that in there. Other than that, great job.
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Old 08-30-2008, 09:39 PM   #4
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glad i have a k series now lol
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Old 09-13-2008, 06:16 PM   #5
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i have a 98 civic and i wanted to know how hard it would be to drop a K20and trans in
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Old 09-13-2008, 08:56 PM   #6
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Quote:
Originally Posted by honda_boy View Post
i have a 98 civic and i wanted to know how hard it would be to drop a K20and trans in
its becoming more and more common now. its alot harder than just throwin a b-series in. i think hasport makes mounts for the k to go in civics now but iirc i think thats just for eg's.

this thread might help ya a lil bit if u read thru. i would also recommend k20a.org. they have info on the swap too.
http://www.honda-tech.com/zerothread/878010

but you will need to do alot of research on your own and be prepared for a lot of work. and $$$
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Old 09-13-2008, 08:56 PM   #7
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k20a2 into a ek
http://www.k20a.org/forum/showthread.php?t=7176
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Old 01-21-2009, 01:47 PM   #8
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swaps are very common now. hassaport makes all the mounts and linkages to make it work.
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Old 01-22-2009, 12:28 AM   #9
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K swaps are great bolt a turbo kit and you can make 400-500whp stock motor
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Old 04-09-2009, 01:41 AM   #10
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For you guys who are looking into these engines heres something you might find a littel handy

http://search.barnesandnoble.com/Bui...494419/?itm=31
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Old 07-10-2009, 12:57 PM   #11
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Quote:
Originally Posted by jaytwou2 View Post
For you guys who are looking into these engines heres something you might find a littel handy

http://search.barnesandnoble.com/Bui...494419/?itm=31
that's really suprising
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Old 08-01-2009, 09:35 PM
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Old 07-07-2010, 07:01 PM   #12
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k20a.org ftw when it comes to info on the k swap
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Old 08-04-2011, 11:45 AM   #13
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K24A3 is also in my '09 Accord. I /want a k20/k24 build so bad, but if I get rid of the car out of lease in October, not gonna bother; but if I am forced to keep it then, well, Frankenstein.
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