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Old July 2nd, 2009, 06:42 PM   #1
fabrik8edDreamz
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auto vs manual ?

why is the 09 v6 auto listed as a 3.5 i-VTEC and the 6 6 is listed as a 3.5 VTEC with high performance intake manifold? yet the power ratings are the same? WTF? and this is directly out of the accord brochure from the stealership
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Old July 2nd, 2009, 07:24 PM   #2
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peak horse power has little to do with power delivery. The j series in the auto with iVetc is soft... dyno number verify this. Something about the intelligent Vtec that takes the edge off the power delivery... combined with power loss by the auto tranny makes for a motor with less power delivery. Manufacturers always state hp values that are never true.

The manual version on the other hand, is very very stout. just about the strongest engine Honda has ever built for a production car... only surpassed by the new 3.7l TL motor and the 3.5L RL motor. As a matter of fact, some would say that the crank number for the manual j series 3.5l in the accord coupe is rated at more than the stated. in other countries the motor is rated at 271hp
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Old July 3rd, 2009, 05:22 AM   #3
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ok that made no sense its rated at 271 here too and y would honda make 2 different 3.5 liter motors? can someone that knos what they r talking about chime in here?
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Old July 3rd, 2009, 05:30 AM   #4
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motor is the same. the difference is that AT comes with i-vtec which can run 3-4-6 pistons and MT is pure vtec 6 pistons all the time.
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Old July 3rd, 2009, 07:44 AM   #5
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Quote:
Originally Posted by fabrik8edDreamz View Post
ok that made no sense its rated at 271 here too and y would honda make 2 different 3.5 liter motors? can someone that knos what they r talking about chime in here?
the car is rated at 271 in the US? they make two different j series 3.5L?

The car is rated at 268hp in the US, 271hp in other countries... Honda makes several versions on the J series 3.5L engine, not two. What's different is the fact that the changes in the control unit and the intake, changes the power delivery and ability to "Perform". when combine that with Automatic transmission parasitic losses, you get a package that is "Soft" when compared to the Manual Coupe version.

this has been backed up by Dyno Number on several occasions.

Because you don't understand something, doesn't means it's not valid... Stupidity is contagious... time for you to leave
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Old July 3rd, 2009, 08:43 AM   #6
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Quote:
Originally Posted by Schu View Post
Manufacturers always state hp values that are never true.

The manual version on the other hand, is very very stout. just about the strongest engine Honda has ever built for a production car... only surpassed by the new 3.7l TL motor and the 3.5L RL motor. As a matter of fact, some would say that the crank number for the manual j series 3.5l in the accord coupe is rated at more than the stated. in other countries the motor is rated at 271hp
well reason for numbers to be not true is because manufacturers rate HP at crank and not at wheels and i think if you listen to any reports, they will say engine produces xxx horse power. they dont say car produces xxx horse power.

another reason is testing conditions are always different and whar dyno was used as well. so its not realy thier fault
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Old July 3rd, 2009, 02:25 PM   #7
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so it goes without saying, you might want to mention in that minutia above that there are atmospheric conditions and calibration issues in addition to the type of test unit being used...
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Old July 4th, 2009, 08:57 AM   #8
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schu your a ****ing idiot, i have the 2009 accord brochure sitting in front of me that i picked up at the dealership and it states that horsepower is 271 @ 6200 rpm and torque is 254 @ 5000(at) and 251 @ 5000 (6mt) next time check yourself before you call someone a liar. and i need real answers from a true enthusiast i'm a mechanic the rest of the **** i can figure out. and i could give 2 ****s about power delivery. i was just curious as to why one had iVTEC and the other had regular VTEC which i prefer anyhow.
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Old July 4th, 2009, 06:46 PM   #9
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youre really ignorant.. the 08 accord coupe was stated to have 268 HP by Honda but was "found" to have 271 along with the 09 coupes.. Schu explained why one has vtec and one is ivtec.. its because ones 6 speed and theres a EXACT vtech crossover point for the 6-6 coupes
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Old July 5th, 2009, 08:32 AM   #10
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Quote:
Originally Posted by fabrik8edDreamz View Post
why is the 09 v6 auto listed as a 3.5 i-VTEC and the 6 6 is listed as a 3.5 VTEC with high performance intake manifold? yet the power ratings are the same? WTF? and this is directly out of the accord brochure from the stealership
maybe instead of being ignorant to other ppl you search before calling other ppl ****ing idiots for trying to help u


Quote:
Originally Posted by fabrik8edDreamz View Post
ok that made no sense its rated at 271 here too and y would honda make 2 different 3.5 liter motors? can someone that knos what they r talking about chime in here?
honda makes more then 2 3.5L engines
hell for 7th gen they made 2 K24 engines and 2 J30, power difference wasnt big at all but they did it anyway, why? ask Honda


Quote:
Originally Posted by fabrik8edDreamz View Post
schu your a ****ing idiot, i have the 2009 accord brochure sitting in front of me that i picked up at the dealership and it states that horsepower is 271 @ 6200 rpm and torque is 254 @ 5000(at) and 251 @ 5000 (6mt) next time check yourself before you call someone a liar. and i need real answers from a true enthusiast i'm a mechanic the rest of the **** i can figure out. and i could give 2 ****s about power delivery. i was just curious as to why one had iVTEC and the other had regular VTEC which i prefer anyhow.

and oh yeah, 2009 maybe listed as 271, 2008 was listed at 268
who is idiot now?
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Old July 6th, 2009, 05:34 AM   #11
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this place is just as bad as honda-tech sometimes. i dont like being called a liar when i had already stated where i got the hp rating from 3 hp diff or not isnt the point and as far as schu saying hard this soft that. makes no sense and has no relevance to what i asked to begin with. i just simply asked y one had iVTEC and the other VTEC if no one knows for sure just say dunno call honda.
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Old July 6th, 2009, 05:41 AM   #12
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Quote:
Originally Posted by fabrik8edDreamz View Post
this place is just as bad as honda-tech sometimes.
treat people same as you want to be treated

Quote:
i just simply asked y one had iVTEC and the other VTEC if no one knows for sure just say dunno call honda.
i thought this was answered already
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Last edited by sy272004; July 6th, 2009 at 06:09 AM..
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Old July 6th, 2009, 06:09 AM   #13
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Quote:
Originally Posted by fabrik8edDreamz View Post
i just simply asked y one had iVTEC and the other VTEC if no one knows for sure just say dunno call honda.
i-VTEC = running 3-4-6 pistons (08+ v6 AT only)
VTEC = 6 pistons all the time (08+ v6 MT only)

i thought i mention that earlier...

and for the 08 268hp 09 271hp... it just like the 7th gen that 03-05 comes with 240hp and 06-07 became 244hp...
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Old July 7th, 2009, 06:34 PM   #14
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sorry nicepeta must have skimmed over that part thank you for answering my question.
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Old December 15th, 2009, 08:08 PM   #15
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manual > auto
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Old April 5th, 2010, 08:24 AM   #16
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bump
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Old May 1st, 2010, 01:29 AM   #17
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Quote:
Originally Posted by nicepeta View Post
motor is the same. the difference is that AT comes with i-vtec which can run 3-4-6 pistons and MT is pure vtec 6 pistons all the time.
is there a way to turn off the i-vtec on the AT so it runs on 6 pistons all the time?
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Old May 1st, 2010, 01:32 AM   #18
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Originally Posted by Indubitably View Post
youre really ignorant.. the 08 accord coupe was stated to have 268 HP by Honda but was "found" to have 271 along with the 09 coupes.. Schu explained why one has vtec and one is ivtec.. its because ones 6 speed and theres a EXACT vtech crossover point for the 6-6 coupes
do you know if there is a way to change the i-vtec on the AT? so that it runs like a regular vtec
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Old July 26th, 2010, 07:04 PM   #19
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yeah...sell the AT and get an MT
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Old July 27th, 2010, 03:21 PM   #20
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bit of an ignorant answer, and fyi... he's lookin into a 6-6 now
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Old July 29th, 2010, 05:20 PM   #21
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No it wasn't, it was funny.
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Old July 29th, 2010, 06:34 PM   #22
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The engine in the V6 6-Speed is slightly underrated plus the lack of cylinder deactivation. The cylinder deactivation system looses some power. These cars were dynoed on TOV and showed the 6 speed V6 coup had quite a bit higher whp.
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Old July 30th, 2010, 09:32 AM   #23
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Smile

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the engine in the v6 6-speed is slightly underrated plus the lack of cylinder deactivation. The cylinder deactivation system looses some power. These cars were dynoed on tov and showed the 6 speed v6 coup had quite a bit higher whp.
ftw!!!
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