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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


Sent from AutoGuide.com Free App
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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that's not the only problem with the K24Z6 or K24Z7...

Looks like the K24Z7 in the Civic Si has an integral exhaust manifold... And it also looks like the oil filter location and oil passages are different.. Also the K20A head doesn't match up to the K24Z block...
 

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that's not the K24z... that's a single OHC V6 head.

more like this, though this is an R18 engine.


Here's a K24Z7 on ebay

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...
 

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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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