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Hey guys, I was able to get my hands on a K24 engine from the newer 2013 Civic Si with 7K miles. With that being said, I was wondering is it the same motor as the one from the TSX? Any difference between the two? Also, the motor did not come with a transmission. Should I stick with the K24 series tranny or are there other options?
 

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Civic si is a k20
Tsx has a k24

You can run the 2013 but it needs modifications to the block
Check out k20.org


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No, the new Civic Si runs a 2.4L K24.
K24Z6
Found in:
2012-Current 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 bhp @ 7000 rpm
Torque: 170 lb·ft @ 4400 rpm
Redline: 7100 rpm
Fuel Cutoff: 7200 rpm

K24Z7
Found in:
2012-Current Honda Civic Si (US)
2013-Current Acura ILX
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 bhp @ 7000 rpm
Torque: 170 lb·ft @ 4400 rpm
Redline: 7100 rpm
Fuel Cutoff: 7200 rpm
 

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Personally I wouldn't want to lose 1300 RPM's for the sake of 10 hp.
Don't think anybody would swap to a Honda motor and keep it stock... but the Civic Si K24Z7 does make ~30ft-lb more torque than the Elise motor while making ~10hp more.

Most people who swap to the Honda K20 or K24/K20A Frankenstein, are also adding forced induction..

Turbo manifold adapter for K24z
 

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The 2012+ K24 is junk. Get rid of it or swap over a 2006 cylinder head. The 2006-2008 TSX is the best Honda had to offer. BTW the 2009+ TSX & 2012+ Civic & 2012+ ILX all use the same K24.

The main reasons why the new engine is worse is because it has only half VTEC (intake only) and a mono exhaust port. Whilst on paper the specs look similar to the 2006 generation K24 (~200 hp), what happens is that the 2012+ is at its limit at 200 hp, whereas the 2006 engine will make 250 hp on pump gas with a header, cams & RBC intake. The non-VTEC exhaust coupled with restrictive exhaust outlet is very bad for detonation, obviously x 10 for forced induction. For comparison with a NA engine on pump gas we can run 20+ degrees ignition advance on a 2006 engine, but at 14 degrees the 2012 engine wants to self destruct. Also the ring tension is very low, which gives good fuel economy but about 50% of the engines are oil burners because the owners did not break them in correctly.

We're just holding out for the next generation turbo engines (2015 TLX / 2016 Civic Type R) as the current generation is not that great.
 

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Note the exhaust manifold in head, and the oil filter location is more to left and lower than the K20A.

Looks like it's itching for a turbo...
My God! I knew they did that crap to the V6's. But to the K engine?

You still think they are going to make that new NSX? A company that has ditched all their sports cars, and now has neutered the greatest 4 cylinder ever created?

:facepalm
 
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