Toyota, Honda overstating Horsepower ratings.

[Vic]

Originally posted by: Ryan
Ah ha - found out the reason for the HP differences:

"The new SAE standards DO NOT let you put premium in the engines while testing despite the engines requiring premium. Basically, every engine in the Acura linup requires premium. There are dynos on other forums of Accord V6's making 6-8 whp just by putting premium."

Link to this? There are engines out there (particularly turbocharged ones) that could be seriously damaged if you dyno'ed them on regular gas instead of the required premium.

 

[iversonyin]

I mean, who buy Honda/ Toyota for horsepower? They wouldn't sell the car in the first place if all the buyers want was horsepower.

 

[RiDE]

Originally posted by: iversonyin
I mean, who buy Honda/ Toyota for horsepower? They wouldn't sell the car in the first place if all the buyers want was horsepower.

Americans do. That's all they look at anyway.

 

[Kelvrick]

Originally posted by: Vic

Originally posted by: Ryan
Ah ha - found out the reason for the HP differences:

"The new SAE standards DO NOT let you put premium in the engines while testing despite the engines requiring premium. Basically, every engine in the Acura linup requires premium. There are dynos on other forums of Accord V6's making 6-8 whp just by putting premium."

Link to this? There are engines out there (particularly turbocharged ones) that could be seriously damaged if you dyno'ed them on regular gas instead of the required premium.

Yea, that'd be pretty stupid...

 

[Zenmervolt]

Originally posted by: Vic

Originally posted by: Ryan
Ah ha - found out the reason for the HP differences:

"The new SAE standards DO NOT let you put premium in the engines while testing despite the engines requiring premium. Basically, every engine in the Acura linup requires premium. There are dynos on other forums of Accord V6's making 6-8 whp just by putting premium."

Link to this? There are engines out there (particularly turbocharged ones) that could be seriously damaged if you dyno'ed them on regular gas instead of the required premium.

My guess would be that the new procedures require that you use the minimum "required" octane as opposed to the "recommended" octane. Honda and Acura especially are pretty widely known for having engines that "require" 87 but "strongly recommend" 91.

A turbocharged engine would "require" 91 or higher.

ZV

 

[Eli]

Originally posted by: Tom

Originally posted by: Xanis
lol, no one buys a camry for performance.... who cares if it gets 190hp?

The point is the dishonesty, not the horsepower.

You don't seem to understand. The issue isn't dishonesty. They weren't dishonest.

They just have to adhere to stricter standards now, and they get different numbers under said new standards.

 

[jlee]

Originally posted by: Zenmervolt

Originally posted by: Vic

Originally posted by: Ryan
Ah ha - found out the reason for the HP differences:

"The new SAE standards DO NOT let you put premium in the engines while testing despite the engines requiring premium. Basically, every engine in the Acura linup requires premium. There are dynos on other forums of Accord V6's making 6-8 whp just by putting premium."

Link to this? There are engines out there (particularly turbocharged ones) that could be seriously damaged if you dyno'ed them on regular gas instead of the required premium.

My guess would be that the new procedures require that you use the minimum "required" octane as opposed to the "recommended" octane. Honda and Acura especially are pretty widely known for having engines that "require" 87 but "strongly recommend" 91.

A turbocharged engine would "require" 91 or higher.

ZV

That could make for a significant difference, then..I'm not too familiar with newer cars' requirements, but supercharged MR2s can limp on 87 octane if necessary..

 

[Zenmervolt]

Originally posted by: CadetLee

Originally posted by: Zenmervolt

Originally posted by: Vic

Originally posted by: Ryan
Ah ha - found out the reason for the HP differences:

"The new SAE standards DO NOT let you put premium in the engines while testing despite the engines requiring premium. Basically, every engine in the Acura linup requires premium. There are dynos on other forums of Accord V6's making 6-8 whp just by putting premium."

Link to this? There are engines out there (particularly turbocharged ones) that could be seriously damaged if you dyno'ed them on regular gas instead of the required premium.

My guess would be that the new procedures require that you use the minimum "required" octane as opposed to the "recommended" octane. Honda and Acura especially are pretty widely known for having engines that "require" 87 but "strongly recommend" 91.

A turbocharged engine would "require" 91 or higher.

ZV

That could make for a significant difference, then..I'm not too familiar with newer cars' requirements, but supercharged MR2s can limp on 87 octane if necessary..

My guess would be that such "limp home" modes aren't counted and only the minimum octane allowable for continued operation is the one tested with.

ZV

 

[marincounty]

I am not positive, but I think even the latest SAE numbers are phony.
I think what they do is measure the rear-wheel horsepower of the car, then add a percentage for the losses in the rear end, transmission, wheel bearings, etc., then come up with a theoretical "crankshaft" horsepower.
The only real horsepower is measured at the rear wheels.
Please tell me I'm wrong and all of the hp figures aren't bull.

 

[theeedude]

I read in the latest C&D that under new standard, the manufacturers need to attach the power steering pump that comes with the car to the engine when testing. Maybe the Camry power steering pump takes 20 hp to operate 🙂

 

[jagec]

Originally posted by: marincounty
I am not positive, but I think even the latest SAE numbers are phony.
I think what they do is measure the rear-wheel horsepower of the car, then add a percentage for the losses in the rear end, transmission, wheel bearings, etc., then come up with a theoretical "crankshaft" horsepower.
The only real horsepower is measured at the rear wheels.
Please tell me I'm wrong and all of the hp figures aren't bull.

It would be nice if they quoted wheel horsepower directly. The only time you want to know crank horsepower is when you're swapping engines or trannies, which isn't exactly something your average consumer does.

Of course, then you'd have manual cars getting higher HP figures than automatics...hehehe.