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Dyno Test Video and Plots

As you can see, this new engine performs pretty well, delivering nearly 180horsepower to the wheels. At a measured 179whp at 6000rpm, it's only coming up 6hp shy of its flywheel rating (185hp@6400rpm). Peak torque rings in at over 170lb-ft at 3700rpm, which also compares quite favorably to its flywheel rating of 181lb-ft@3900rpm). So yeah, it seems that Honda's Earth Dreams 4-cylinder engines are also underrated to some extent.

Plot #1 - 2013 Accord EX 6MT Sedan

Notes: For whatever reason, the dynojet lost the RPM readings above 6500rpm, but the fuel cutoff actually appears to be around 7100rpms. Horsepower and torque had peaked prior to 6500 so there's not much missing from this curve. The torque and horsepower peak a little earlier on the dynojet than on Honda's spec sheet. On the street and on the dyno video you can hear the VTEC switch from the low lift cams to the high lift cams at approximately 4800 rpms. The torque curve is wonderfully flat and broad, which provides this car with excellent in-gear acceleration

Plot #2 - 2013 Accord EX 6MT Coupe vs 2012 Acura TSX SE 6MT

Notes: Here we are comparing the Accord to its closest K24Z cousin, which is the K24Z3 found in the 2nd generation Acura TSX. The K24Z3 lacks the K24W1's direct injection, but the K24Z3 runs a similar compression ratio and is rated at 201hp. For this dyno test, we tested with regular 87 octane unleaded in the Accord and the 2012 TSX SE was tested with 93 octane premium unleaded at an earlier date.

The K24W1 nearly matches the K24Z3's peak power while surpassing the K24Z3 to the tune of 10lb-ft in peak torque. As the curves show, the K24W1 delivers 10-20b-ft more torque pretty much everywhere in the rev band. As a result, the horsepower curve closely mirrors the K24Z3s, but it is shifted to the left on the RPM axis by about 400rpm. The only reason the K24Z3 pips the K24W1 in peak output is because it makes a late surge from 6500rpm to the 7300rpm rev limiter, but from 5000-6500rpm the Accord's K24W1 is up by roughly 15-20hp vs the TSX's K24Z3, and you can certainly feel this advantage on the road.



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Date Thread Starter Thread
02-15-2015 22:14 Dyno run   (Score: 1, Normal) Lmprace_1
03-20-2013 20:17 Terrible Color and Trim Choices for Manual Transmission Honda Accord   (Score: 1, Normal) Paul Maryland
03-21-2013 09:36 atomiclightbulb
03-22-2013 02:01 _Alex_
03-22-2013 09:56 Paul Maryland
03-22-2013 13:45 Paul Maryland
03-23-2013 01:39 _Alex_
03-23-2013 21:12 Paul Maryland
03-24-2013 23:29 jero
03-26-2013 10:47 Paul Maryland
03-27-2013 09:30 jero
03-28-2013 20:41 Paul Maryland
04-15-2013 00:38 TXsalesguy
04-26-2013 15:02 Paul Maryland
05-07-2013 21:33 A77X
05-21-2013 16:08 SH-AWD10
07-02-2013 19:21 Paul Maryland
05-02-2013 14:58 gofast182
03-07-2013 19:48 Good comparison...   (Score: 1, Normal) notyper
03-08-2013 16:44 40mpg
03-08-2013 18:41 outersquare
03-08-2013 18:50 outersquare
05-07-2013 19:41 mp4/5
03-09-2013 11:34 Replace all K24s with the DI version   (Score: 1, Normal) mobis21
03-09-2013 13:33 JeffX
03-09-2013 14:15 mobis21
03-09-2013 19:07 notyper
03-10-2013 01:52 JP
03-20-2013 14:41 TonyEX
03-10-2013 19:40 atomiclightbulb
03-11-2013 02:09 notyper
03-11-2013 13:13 JP
03-11-2013 14:59 atomiclightbulb
03-13-2013 21:41 owequitit
03-14-2013 09:29 S600=Dream
03-17-2013 01:03 s2ktaxi
03-17-2013 22:08 S600=Dream
03-20-2013 14:43 TonyEX
04-06-2013 17:11 ClementZ
03-07-2013 16:46 Meanwhile in Canada   (Score: 1, Normal) chconline
03-10-2013 22:38 Harvey Jr
03-11-2013 12:32 Hondarulez
03-11-2013 13:24 JP
03-11-2013 18:01 chconline
03-12-2013 12:04 Hondarulez
03-14-2013 11:40 TL_06
03-17-2013 11:03 DanCivicSi
03-17-2013 11:07 chconline
03-20-2013 16:20 A77
03-20-2013 18:00 Paul Maryland
03-08-2013 10:47 Vindication for the K24W1   (Score: 1, Normal) atomiclightbulb
03-16-2013 12:00 bluefz22
03-12-2013 13:26 How much of the gains are in the gearboxes?   (Score: 1, Normal) atomiclightbulb
03-12-2013 18:11 notyper
03-12-2013 22:38 atomiclightbulb
03-11-2013 19:34 Takeda Cat Back for 2013 Accord Sport.   (Score: 1, Normal) Hondatalover
03-11-2013 20:27 notyper
03-11-2013 21:39 atomiclightbulb
03-11-2013 21:52 JP
03-12-2013 10:26 outersquare
03-07-2013 17:10 What the K24W1 looks like..   (Score: 1, Normal) Hondatalover
03-07-2013 17:45 atomiclightbulb
03-07-2013 18:01 Hondatalover
03-07-2013 19:51 notyper
03-07-2013 20:14 JeffX
03-07-2013 20:23 atomiclightbulb
03-08-2013 00:22 towncaptain
03-08-2013 12:01 Hondarulez
03-08-2013 12:56 _Alex_
03-08-2013 13:20 JeffX
03-08-2013 13:34 _Alex_
03-08-2013 18:01 Hondarulez
03-08-2013 19:09 _Alex_
03-08-2013 20:59 Hondatalover
03-11-2013 12:37 Hondarulez
03-11-2013 14:01 _Alex_
03-11-2013 14:11 _Alex_
03-11-2013 16:11 KMG1219
03-07-2013 22:05 jshaw
03-07-2013 18:05 JeffX
03-07-2013 18:31 Hondatalover
03-07-2013 19:30 BachelorFrog
03-07-2013 20:43 Fan Koni
03-08-2013 11:52 Traded '04 RX-8 for '13 6sp Sport Sedan   (Score: 1, Normal) _Alex_
03-07-2013 15:34 What's the diff?   (Score: 1, Normal) 2001AccordEX
03-07-2013 15:42 JeffX
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First Drive: 2019 Honda Insight
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2019 Honda Insight PR Photo Gallery
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First Drive: 2019 Acura RDX
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2019 Acura RDX Features & Specifications
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PR Photo Gallery - 2019 Acura RDX Advance
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PR Photo Gallery - 2019 Acura RDX A-Spec
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