Help - Search - Members - Calendar
Full Version: 2005 Vs. 2006 Hp Rating
Lexus Owners Club (USA & Canada) > Lexus Owners Club > Lexus GX470 Forums
a990dna
I realize this may be insignificant, but why did the HP rating go from 270HP in the 2005s to 263HP in 2006s?

Seems a bit odd.... the MPG ratings are the same so they didn't make a change to improve gas mileage.

Unless of course the 2005 rating was reported in error...
I think the torque values may have changed some also...

Anyone have the inside story on this?
SilverGX

I noticed the same thing. -- Was it overstated in 05



QUOTE(a990dna @ Sep 16 2005, 05:23 PM)
I realize this may be insignificant, but why did the HP rating go from 270HP in the 2005s to 263HP in 2006s?

Seems a bit odd.... the MPG ratings are the same so they didn't make a change to improve gas mileage.

Unless of course the 2005 rating was reported in error...
I think the torque values may have changed some also...

Anyone have the inside story on this?
[right][snapback]154696[/snapback][/right]

mwal3
HP rating didn't change...only HOW the governing body rates horsepower. See review in Edmunds.com for more info.
a990dna
Okay, I looked on Edmunds for an explanation... didn't find anything referencing "how the governing body rates horsepower" and the change relative to 2005 vs 2006 GX 470s.

Care to elaborate on this "governing body" or maybe provide the specific link to Edmunds?...

Usually HP/Torque ratings, once published, are used as reference for brand comparisons... and serves as a marketing tool to illustrate an advantage to target future sales. I would question the strategy to arbitrarily lower or restate HP ratings unless of course the 2005 ratings were overstated to begin with.

Maybe the "governing body" found the error during their own test and forced Lexus to restate the actual performance?

That link to Edmunds would be helpful...

QUOTE(mwal3 @ Sep 16 2005, 11:05 PM)
HP rating didn't change...only HOW the governing body rates horsepower.  See review in Edmunds.com for more info.
[right][snapback]154752[/snapback][/right]

scottjm
"Power ratings are down slightly for '06, to 263 horsepower and 323 pound-feet of torque, but that's only because the Society of Automotive Engineers (SAE) has instituted new test procedures that tend to deliver more conservative numbers. The engine itself, and its performance, have not changed. The 2006 GX 470 is every bit as powerful as the 2005 model. "
http://www.nctd.com/review-intro.cfm?Vehic...0&ReviewID=1754
a990dna
Thanks for the clarification...
gnhumad
I've notice that 2006 Vehicles from Honda, Toyota, and Mazda all have lower HP ratings than their 2005 models with the same drivetrain
bartkat
Mazda got nailed last year for overstating HP.
BobsGX470
QUOTE(gnhumad @ Sep 19 2005, 05:39 PM)
I've notice that 2006 Vehicles from Honda, Toyota, and Mazda all have lower HP ratings than their 2005 models with the same drivetrain
[right][snapback]155240[/snapback][/right]


Not all are rated lower. The 06 Honda Accord V6 is rated 4 hp higher than the 05 model.
a990dna
This leads me to believe the manufacturer's are overstating and publishing HP/Torque ratings in their race to market.... primarily to prevent losing market share. Then SAE performs their own test and finds something different.

Not uncommon... I find it difficult to believe SAE changed the process for which HP/Torque values are tested... this would affect every vehicle. But I would believe they possibly added more variables to the test protocol... or simply took a more realistic approach....

Anyone can easily dyno a motor at the crank or at the wheels in a controlled environment and publish documented HP/Torque ratings... offering optimum results.
bartkat
Asians oversell horsepower

QUOTE
After years of touting ever higher horsepower numbers to win new customers, Toyota Motor Corp., Honda Motor Co. and possibly other automakers are now backtracking on some of those claims.

Strict new tests developed by the industry's top engineering group are prompting the carmakers to roll back horsepower estimates on several key vehicles, including the Toyota Camry, America's best-selling car, and Honda's luxurious Acura RL.

For the 2006 model year, Toyota says its Camry equipped with a 3-liter V-6 engine generates 190 horsepower. In 2005, Toyota said the same car with the same engine had 210 horsepower.

The revised ratings comply with new Society of Automotive Engineers standards designed to eliminate subjective interpretation in establishing horsepower claims.

While Toyota and Honda are retesting their entire vehicle lineups, other automakers generally are retesting only cars and trucks with updated powertrains.

Over time, most automakers are expected to comply with the new guidelines, and horsepower ratings for other vehicles could be revised.

Detroit's automakers say they have been conservative in calculating horsepower and don't expect to have to reduce horsepower ratings on many vehicles. In fact, after retesting, the Big Three have revised horsepower ratings upward on several vehicles.

The changes are likely to raise questions among customers.

"Horsepower is a big draw," said Jim Sanfilippo, an automotive marketing expert at AMCI Inc.

"This is at best difficult to explain," he added.


http://www.detnews.com/2005/autosinsider/0.../A01-283759.htm
a990dna
Brits oversell posh
flukechance
My dealer oversells pot
twonorth69
Weeeee, I got a Lexus!!!! Do the retard dance with me!!!!!

user posted image
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2009 Invision Power Services, Inc.