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article details
Author Jeff Palmer
Categories Dyno Testing, TOV Road Test, Accord
Create Date October 12, 2007 10:36
Last Update October 19, 2007 11:09
2008 Honda Accord EX-L V6 5AT Dyno Test

We finally got our hands on an Accord press loaner and wasted no time in dyno testing the new 3.5L VCM2 V6. With ratings of 268hp and 248lb-ft at the crank, we were curious how much power the Accord would deliver to the wheels.

The last Accord V6 5AT we tested was a 2003 model and it put down 196whp and 175lb-ft of torque from its 3.0L motor (see the article here), so the results here aren't particularly impressive, though it should be noted that with less than 500miles on the odometer, the engine in this 2008 is far from being broken in. Also, the 2008 wears heavier 17" wheels than the '03 Accord V6, so that will also cost a few hp on the dyno.

NOTE: Since this car has an automatic transmission with no way to hold 3rd gear for testing, we couldn't dyno test it below around 4000 rpms because it would simply downshift. Ignore the curve to the left of about 4200 rpms, because during that portion of the run we were not at full throttle.

Peak power comes in at 6000rpms, which is in agreement with the spec sheets. Peak torque comes in a hair above 5000 rpms but hovers in the same zone for a few hundred rpms before beginning to taper off. Beyond 6000 rpms, the torque begins to plummet fairly rapidly on the dyno, though on the street it pulls harder up top than the plot might suggest. What's a little odd is the dip in the horsepower curve between 6000 and 6500 rpms - my original thought was that the engine computer may have been sensing some detonation up there and pulling back timing, but Shawn Church reminded me that Honda has a special function that's designed to preserve the health of the catalytic converter - when exhaust gas temps (and thus the catalyst) begin to get too hot, the engine computer will momentarily richen the mixture to cool the EGTs. This is believed to be the source of the dip in power up top.

UPDATE 16.Oct: We took the Accord back to the dyno today to test it with a tank of 93 octane unleaded in it. Continue on to the next page to see the results.

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Date Thread Starter Thread
10-31-2007 15:09
Overlay with '06 '07 J30 Plot   (Score: 1, Normal)
gofast182
10-31-2007 21:04
Re: Overlay with '06 '07 J30 Plot   (Score: 1, Normal)
Vincenzo
11-01-2007 12:34
Re: Overlay with '06 '07 J30 Plot   (Score: 1, Normal)
TH23
11-19-2007 15:25
Re: Overlay with '06 '07 J30 Plot   (Score: 1, Normal)
BlowYourI4
12-01-2007 21:28
Re: Overlay with '06 '07 J30 Plot   (Score: 1, Normal)
Carzzz
10-16-2007 13:05
Going to re-dyno with Premium   (Score: 1, Normal)
JeffX
10-16-2007 13:24
Re: Going to re-dyno with Premium   (Score: 1, Normal)
Wizard
10-16-2007 15:07
Re: Going to re-dyno with Premium   (Score: 1, Normal)
JeffX
10-16-2007 16:55
Re: Going to re-dyno with Premium   (Score: 1, Normal)
Wizard
10-16-2007 23:35
Re: Going to re-dyno with Premium   (Score: 1, Normal)
CarPhreakD
10-17-2007 08:16
Re: Going to re-dyno with Premium   (Score: 1, Normal)
JeffX
10-17-2007 11:11
Re: Going to re-dyno with Premium   (Score: 1, Normal)
notyper
10-17-2007 11:37
Re: Going to re-dyno with Premium   (Score: 1, Normal)
JeffX
10-17-2007 15:19
Re: Going to re-dyno with Premium   (Score: 1, Normal)
Wizard
10-17-2007 08:10
Re: Going to re-dyno with Premium   (Score: 1, Normal)
JeffX
10-22-2007 07:43
Re: Going to re-dyno with Premium   (Score: 1, Normal)
Dren
10-18-2007 15:07
Re: Going to re-dyno with Premium   (Score: 1, Normal)
Ignition_Key
10-23-2007 15:00
Re: Going to re-dyno with Premium   (Score: 1, Normal)
HJV1
11-06-2007 10:46
Re: Going to re-dyno with Premium   (Score: 1, Normal)
chubzilla
11-11-2007 21:48
Re: Going to re-dyno with Premium   (Score: 1, Normal)
TH23
10-28-2007 23:46
I4 test   (Score: 1, Normal)
BOOMER
10-17-2007 18:05
Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
STL
10-17-2007 21:37
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
JeffX
10-19-2007 11:17
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
STL
10-19-2007 13:10
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
JeffX
10-19-2007 14:11
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
STL
10-19-2007 14:31
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
JeffX
10-20-2007 08:47
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
Ra005e
10-20-2007 13:53
Re: Jeff, how does this compare with an '06+ TSX dyno?   (Score: 1, Normal)
CarPhreakD
10-19-2007 22:05
Mid range sit better then last gen?   (Score: 1, Normal)
rfs830
10-19-2007 22:11
Re: Mid range sit better then last gen?   (Score: 1, Normal)
rfs830
10-15-2007 15:00
acura over honda   (Score: 1, Normal)
acurasales
10-16-2007 17:37
Re: acura over honda   (Score: 1, Normal)
hndajnkie1
10-16-2007 21:53
Re: acura over honda   (Score: 1, Normal)
CarPhreakD
10-17-2007 15:07
Re: acura over honda   (Score: 1, Normal)
hndajnkie1
10-17-2007 21:18
Re: acura over honda   (Score: 1, Normal)
CarPhreakD
10-19-2007 12:51
Re: acura over honda   (Score: 1, Normal)
hndajnkie1
10-19-2007 14:42
Re: acura over honda   (Score: 1, Normal)
5thTo2nd
10-18-2007 19:39
Honda overated   (Score: 1, Normal)
Xavi77
10-18-2007 21:40
Re: Honda overated   (Score: 1, Normal)
notyper
10-12-2007 16:47
Where is the 6spd V6 Coupe?   (Score: 1, Normal)
mobomofo
10-12-2007 19:24
Re: Where is the 6spd V6 Coupe?   (Score: 1, Normal)
Ezmerelda
10-16-2007 03:33
Re: Where is the 6spd V6 Coupe?   (Score: 1, Normal)
Bankston_Honda
10-16-2007 10:13
Re: Where is the 6spd V6 Coupe?   (Score: 1, Normal)
JeffX
10-12-2007 14:36
Not very impressive   (Score: 1, Normal)
6SPDTL
10-12-2007 16:45
Re: Not very impressive   (Score: 1, Normal)
mobomofo
10-13-2007 17:34
Re: Not very impressive   (Score: 1, Normal)
rancho1
10-13-2007 19:54
Re: Not very impressive   (Score: 1, Normal)
HONDA AFVM
10-13-2007 18:25
Re: Not very impressive   (Score: 1, Normal)
CarPhreakD
10-14-2007 16:56
Re: Not very impressive   (Score: 1, Normal)
owequitit
10-15-2007 08:11
Re: Not very impressive   (Score: 1, Normal)
shingles
10-15-2007 14:53
Re: Not very impressive   (Score: 1, Normal)
6SPDTL
10-12-2007 11:18
Losses   (Score: 1, Normal)
Wizard
10-12-2007 11:23
Re: Losses   (Score: 1, Normal)
Wizard
10-12-2007 11:29
Re: Losses   (Score: 1, Normal)
JeffX
10-12-2007 11:31
Re: Losses   (Score: 1, Normal)
notyper
10-12-2007 11:44
Re: Losses   (Score: 1, Normal)
precisionelite
10-12-2007 11:59
Re: Losses   (Score: 1, Normal)
Nakamichi
10-12-2007 12:25
Re: Losses   (Score: 1, Normal)
CarPhreakD
10-13-2007 11:57
Can losses be overcome by sifting AT like manual?   (Score: 1, Normal)
Odyssey500
10-12-2007 12:03
Re: Losses   (Score: 1, Normal)
danielgr
10-12-2007 12:48
Re: Losses   (Score: 1, Normal)
JeffX
10-12-2007 21:46
Re: Losses   (Score: 1, Normal)
danielgr
10-13-2007 00:24
Re: Losses   (Score: 1, Normal)
notyper
10-15-2007 11:11
Re: Losses   (Score: 1, Normal)
danielgr
10-12-2007 13:29
Re: Losses   (Score: 1, Normal)
Wizard
10-12-2007 15:23
Re: Losses   (Score: 1, Normal)
xman
10-12-2007 15:35
Re: Losses   (Score: 1, Normal)
JoeFromPA
10-12-2007 17:24
Re: Losses   (Score: 1, Normal)
Wizard
10-12-2007 20:58
Re: Losses   (Score: 1, Normal)
danielgr
10-14-2007 21:28
JDM Inspire Prototype (280hp?)   (Score: 1, Normal)
alan3885
10-14-2007 21:35
Re: JDM Inspire Prototype (280hp?)   (Score: 1, Normal)
alan3885
10-15-2007 01:18
Re: JDM Inspire Prototype (280hp?)   (Score: 1, Normal)
Wizard
10-12-2007 11:10
Continued Disappointment   (Score: 1, Normal)
Bepperb
10-12-2007 11:40
Re: Continued Disappointment   (Score: 1, Normal)
Ignition_Key
10-12-2007 16:40
Re: Continued Disappointment   (Score: 1, Normal)
s1eepersupra
10-13-2007 14:19
Re: Continued Disappointment   (Score: 1, Normal)
Vader
10-13-2007 15:11
Re: Continued Disappointment   (Score: 1, Normal)
RSXCase
10-13-2007 19:47
Re: Continued Disappointment   (Score: 1, Normal)
Vader
10-14-2007 17:02
Re: Continued Disappointment   (Score: 1, Normal)
owequitit
10-14-2007 11:14
Not giving an excuses   (Score: 1, Normal)
AKO1
10-14-2007 11:13
Any chance of the 190 HP 5 Sp as well?   (Score: 1, Normal)
Dave
10-13-2007 17:46
Can someone explain this to me?   (Score: 1, Normal)
MikeStats12
10-13-2007 18:27
Re: Can someone explain this to me?   (Score: 1, Normal)
CarPhreakD
10-13-2007 20:09
Re: Can someone explain this to me?   (Score: 1, Normal)
MikeStats12
10-14-2007 00:42
Re: Can someone explain this to me?   (Score: 1, Normal)
Frogger
10-12-2007 12:59
Lows and mids   (Score: 1, Normal)
soulboy
10-12-2007 13:05
Re: Lows and mids   (Score: 1, Normal)
JeffX
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