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article details
Author Jeff Palmer
Categories Dyno Testing, Audio/Video, TSX
Create Date April 16, 2008 15:33
Last Update May 01, 2008 09:28
2009 Acura TSX 6MT Dyno Test

When Acura released the specs for the 2009 TSX, the collective groans from enthusiasts were nearly deafening. Trading 4 peak horsepower for "only" 8 additional lb-ft of torque wasn't enough to subdue the moaning, but perhaps the results of our first Dynojet chassis dyno test will help. As you can see in the plot below, the new TSX's K24Z3 makes more torque everywhere in the rev band below 6000 rpms, and in some places, substantially more torque. At 162lb-ft, the K24Z3's peak torque is more than 12lb-ft ahead of the K24A2. Above 6000 rpm, the older K24A2 makes slightly more torque (and thus, more horsepower), but as you can see, the advantage is negligible, with the K24Z3's 179.6hp falling short of the K24A2's peak horsepower by a pony count of less than 2. It's difficult to determine with any degree of certainty, but from the dyno plots it appears that the K24Z3's VTEC transition point has been moved down to around 5000 rpms, compared to the artificially high 6000 rpm switch point that the K24A2 used. Obviously, this lowered VTEC switch point plays a role in the additional midrange torque, but clearly there have been other optimizations as well. It's not clear why these optimizations didn't equally impact the performance on the high-rpm lobes, but maybe Honda's holding off on a hotter high-rpm profile for marketing reasons.

Bear in mind that this car is quite green, with only 122 miles on the ticker at the time of our dyno test. It wouldn't surprise me if we see broken-in stock examples of the 2009 TSX making 185 wheel horsepower or more at some point down the road.

Dyno Results:

VIDEO
NOTE: If you are unable to see the video player above, you can try downloading the video by (right) clicking here

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Date Thread Starter Thread
05-05-2008 14:34
Advanced Vtec needed here   (Score: 1, Normal)
Hrandy
05-07-2008 01:54
Re: Advanced Vtec needed here   (Score: 1, Normal)
Hondarulez
04-17-2008 10:41
Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-20-2008 18:46
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-20-2008 21:17
Re: Use of 5AT is justified now   (Score: 1, Normal)
Hondarulez
04-21-2008 13:48
Re: Use of 5AT is justified now   (Score: 1, Normal)
Bepperb
04-21-2008 13:59
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-21-2008 15:50
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-21-2008 16:59
Re: Use of 5AT is justified now   (Score: 1, Normal)
JeffX
04-21-2008 18:55
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-21-2008 21:38
Re: Use of 5AT is justified now   (Score: 1, Normal)
JeffX
04-21-2008 23:08
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-22-2008 10:43
Re: Use of 5AT is justified now   (Score: 1, Normal)
JeffX
04-22-2008 12:31
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-22-2008 12:35
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-22-2008 14:19
Re: Use of 5AT is justified now   (Score: 1, Normal)
Hondarulez
04-22-2008 15:32
Re: Use of 5AT is justified now   (Score: 1, Normal)
123456speed
04-22-2008 16:37
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-28-2008 03:01
Re: Use of 5AT is justified now   (Score: 1, Normal)
owequitit
04-29-2008 15:34
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
05-02-2008 02:05
Re: Use of 5AT is justified now   (Score: 1, Normal)
Hondarulez
05-02-2008 13:01
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
05-02-2008 13:24
Re: Use of 5AT is justified now   (Score: 1, Normal)
Hondarulez
05-02-2008 17:39
Re: Use of 5AT is justified now   (Score: 1, Normal)
owequitit
05-03-2008 23:05
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
05-05-2008 01:55
Re: Use of 5AT is justified now   (Score: 1, Normal)
owequitit
05-06-2008 16:39
Re: Use of 5AT is justified now   (Score: 1, Normal)
TH23
04-22-2008 15:59
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-22-2008 16:53
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-22-2008 17:02
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-22-2008 18:06
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-23-2008 02:04
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-23-2008 11:45
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-23-2008 16:39
Re: Use of 5AT is justified now   (Score: 1, Normal)
JeffX
04-23-2008 16:43
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-24-2008 11:52
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-25-2008 02:28
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-25-2008 07:28
Re: Use of 5AT is justified now   (Score: 1, Normal)
JeffX
04-25-2008 12:20
Re: Use of 5AT is justified now   (Score: 1, Normal)
Wizard
04-25-2008 12:58
Re: Use of 5AT is justified now   (Score: 1, Normal)
JeffX
04-25-2008 16:57
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-22-2008 18:23
Re: Use of 5AT is justified now   (Score: 1, Normal)
ipribadi
04-22-2008 23:15
Re: Use of 5AT is justified now   (Score: 1, Normal)
Hondarulez
04-20-2008 20:49
"VTEC kick = marketing tool?   (Score: 1, Normal)
CivicB18
04-20-2008 21:13
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
Hondarulez
04-20-2008 21:44
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
Wizard
04-21-2008 14:32
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
ipribadi
04-26-2008 00:05
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
STL
04-25-2008 21:11
Message below viewing threshold View   (Score: -1, Troll)
xcess
04-25-2008 22:23
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
Hondarulez
04-26-2008 00:05
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
STL
04-28-2008 02:52
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
owequitit
04-30-2008 07:35
Message below viewing threshold View   (Score: -1, Troll)
xcess
05-02-2008 02:01
Message below viewing threshold View   (Score: -1, Normal)
Hondarulez
05-03-2008 21:17
Message below viewing threshold View   (Score: -1, Normal)
xcess
05-05-2008 00:58
Message below viewing threshold View   (Score: -1, Normal)
notyper
05-02-2008 17:57
Message below viewing threshold View   (Score: -1, Normal)
owequitit
05-03-2008 21:27
Message below viewing threshold View   (Score: -1, Normal)
xcess
05-04-2008 03:55
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
Hondarulez
05-04-2008 04:02
Re: "VTEC kick = marketing tool?   (Score: 1, Normal)
Hondarulez
04-17-2008 10:09
Sensible   (Score: 1, Normal)
Neilap
04-17-2008 10:32
Re: Sensible   (Score: 1, Normal)
Bepperb
04-17-2008 13:27
Re: Sensible   (Score: 1, Normal)
Hondarulez
04-17-2008 17:06
Re: Sensible   (Score: 1, Normal)
Bepperb
04-18-2008 00:24
Re: Sensible   (Score: 1, Normal)
Hondarulez
04-18-2008 09:25
Re: Sensible   (Score: 1, Normal)
Bepperb
04-18-2008 13:26
Re: Sensible   (Score: 1, Normal)
Hondarulez
04-18-2008 13:27
Re: Sensible   (Score: 1, Normal)
Hondarulez
04-22-2008 14:48
Re: Sensible   (Score: 1, Normal)
enemy
04-22-2008 23:18
Re: Sensible   (Score: 1, Normal)
Hondarulez
04-30-2008 03:54
Re: Sensible   (Score: 1, Normal)
chuchurocket
04-17-2008 14:42
Re: Sensible   (Score: 1, Normal)
80honda
04-17-2008 16:01
Re: Sensible   (Score: 1, Normal)
Hondarulez
04-24-2008 22:18
Very disappointing   (Score: 1, Normal)
Hondacurafan
04-25-2008 11:35
Re: Very disappointing   (Score: 1, Normal)
ipribadi
04-25-2008 21:08
Re: Very disappointing   (Score: 1, Normal)
330R
04-25-2008 22:27
Re: Very disappointing   (Score: 1, Normal)
Hondarulez
04-26-2008 01:52
Re: Very disappointing   (Score: 1, Normal)
CarPhreakD
04-26-2008 22:10
Re: Very disappointing   (Score: 1, Normal)
Hondarulez
04-28-2008 02:49
Re: Very disappointing   (Score: 1, Normal)
owequitit
04-17-2008 11:05
Still uses a hood prop rod !?!?   (Score: 1, Normal)
ipribadi
04-17-2008 22:35
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
Ezmerelda
04-18-2008 00:14
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
VTECaddict
04-18-2008 09:21
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
FuKev
04-18-2008 09:56
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
ipribadi
04-18-2008 15:23
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
CybrRdr
04-27-2008 18:14
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
PGH
04-19-2008 00:26
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
owequitit
04-20-2008 04:25
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
Ra005e
04-20-2008 15:54
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
Texas
04-20-2008 18:22
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
Wizard
04-20-2008 21:27
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
notyper
04-20-2008 21:34
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
80honda
04-21-2008 14:26
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
ipribadi
04-21-2008 15:38
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
Wizard
04-21-2008 17:01
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
JeffX
04-24-2008 17:33
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
Honda-D
04-28-2008 02:43
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
owequitit
04-28-2008 02:45
Re: Still uses a hood prop rod !?!?   (Score: 1, Normal)
owequitit
04-27-2008 19:05
TSX Diesel   (Score: 1, Normal)
enemy
04-20-2008 20:56
a-VTEC and revampedTSX K24   (Score: 1, Normal)
CivicB18
04-20-2008 21:11
Re: a-VTEC and revampedTSX K24   (Score: 1, Normal)
Hondarulez
04-25-2008 13:16
Re: a-VTEC and revampedTSX K24   (Score: 1, Normal)
siegen
04-16-2008 19:25
Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
siegen
04-16-2008 21:40
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
Hondarulez
04-17-2008 01:16
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
xcess
04-17-2008 01:56
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
Hondarulez
04-17-2008 09:19
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
RyanDL
04-17-2008 10:16
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
wrussi
04-17-2008 10:17
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
wrussi
04-17-2008 10:41
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
Bepperb
04-17-2008 11:26
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
DrS2k
04-17-2008 12:10
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
notyper
04-17-2008 13:19
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
Hondarulez
04-17-2008 17:40
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
hndajnkie1
04-17-2008 19:08
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
fortan
04-25-2008 10:21
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
2K5TSX
04-18-2008 00:13
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
Hondarulez
04-17-2008 11:32
Re: Honda could have improved 6k-7k performance me'thinks.   (Score: 1, Normal)
zapata
04-16-2008 19:43
Realtime Racing   (Score: 1, Normal)
Potenza
04-20-2008 16:39
Re: Realtime Racing   (Score: 1, Normal)
Solo2EG
04-17-2008 23:56
Civic Family Resemblance   (Score: 1, Normal)
Selektaa
04-16-2008 16:38
Sound??   (Score: 1, Normal)
LudegarH22A7
04-16-2008 16:58
Re: Sound??   (Score: 1, Normal)
JeffX
04-16-2008 18:34
Re: Sound??   (Score: 1, Normal)
CarPhreakD
04-16-2008 19:22
Re: Sound??   (Score: 1, Normal)
retired
04-16-2008 20:00
Re: Sound??   (Score: 1, Normal)
boomer
04-16-2008 21:46
Re: Sound??   (Score: 1, Normal)
Hondarulez
04-16-2008 22:14
Re: Sound??   (Score: 1, Normal)
MugenDX
04-16-2008 23:56
Re: Sound??   (Score: 1, Normal)
krazeericeboi54
04-17-2008 19:48
Re: Sound??   (Score: 1, Normal)
beester
04-16-2008 20:21
HP Rating   (Score: 1, Normal)
sjava
04-16-2008 21:42
Re: HP Rating   (Score: 1, Normal)
Hondarulez
04-16-2008 22:27
Re: HP Rating   (Score: 1, Normal)
batman25
04-17-2008 01:59
Re: HP Rating   (Score: 1, Normal)
Hondarulez
04-17-2008 09:08
Re: HP Rating   (Score: 1, Normal)
Texas
04-17-2008 13:29
Re: HP Rating   (Score: 1, Normal)
Hondarulez
04-16-2008 21:54
Re: HP Rating   (Score: 1, Normal)
owequitit
04-17-2008 10:24
How about an auto dyno?   (Score: 1, Normal)
jero
04-17-2008 10:51
Re: How about an auto dyno?   (Score: 1, Normal)
JeffX
04-16-2008 23:53
Engine Tune Looks Good   (Score: 1, Normal)
Rollin CD5
04-16-2008 22:43
I like this engine better....   (Score: 1, Normal)
spotch
04-16-2008 20:19
A/F??   (Score: 1, Normal)
lookin4trouble
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