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Old Nov 3, 2011 | 06:58 PM
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Default Horsepower Rating

On the 2003 LS-1 it rates the HP at about 350. Is that RWHP or Flywheel. Thanks in advance, Just curious.
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Old Nov 3, 2011 | 07:00 PM
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Rated at the flywheel.
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Old Nov 3, 2011 | 07:01 PM
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Flywheel

Most say take off 15% for manual trans and 20% for auto to calculate "approx" rwhp...
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Old Nov 3, 2011 | 07:04 PM
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Originally Posted by oh1vette
Flywheel

Most say take off 15% for manual trans and 20% for auto to calculate "approx" rwhp...
I thought it would be flywheel, thanks for the info.
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Old Nov 4, 2011 | 08:49 AM
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I know of no factory rear wheel horsepower ratings,everyone of them uses at the crank figures.
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Old Nov 4, 2011 | 11:07 AM
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Originally Posted by rebelheart
I know of no factory rear wheel horsepower ratings,everyone of them uses at the crank figures.
Helps them sell more cars. They'll always use the highest number...
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Old Nov 6, 2011 | 02:14 AM
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Originally Posted by cdkcorvette7
Helps them sell more cars. They'll always use the highest number...
Yeah, until someone starts rating them at the rear wheels and then everyone starts saying, "Why is that car of the exact same weight with 400 rated hp beating my 450 rated hp." Then you can respond, "Because your car manufacturers don't have a damn clue what they're talking about."

They think highest number matters and helps them sell cars, but it sure wouldn't if they were being smoked by a lot of rwhp rated cars whose 'numbers' were handful lower, it'd just make their company look like a waste of money, effort, and time. Flywheel hp annoys every ounce of good thoughts out of my body because it is the most useless number in the world.
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Old Nov 6, 2011 | 10:26 AM
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Originally Posted by Bartric
Yeah, until someone starts rating them at the rear wheels and then everyone starts saying, "Why is that car of the exact same weight with 400 rated hp beating my 450 rated hp." Then you can respond, "Because your car manufacturers don't have a damn clue what they're talking about."

They think highest number matters and helps them sell cars, but it sure wouldn't if they were being smoked by a lot of rwhp rated cars whose 'numbers' were handful lower, it'd just make their company look like a waste of money, effort, and time. Flywheel hp annoys every ounce of good thoughts out of my body because it is the most useless number in the world.
I would submit that greater than 90% of people who buy high HP cars never:

a: actually take them to a track so that the limits of the car can be tested

b: take the time to learn that there IS a difference between flywheel HP and wheel HP.

People buy fast cars for the bling factor, curb appeal, and because when they want to pass someone in traffic they can do so easily. (I don't think there's anything wrong with that btw, not everyone is as into cars as quite a few of us on this site are).

The VAST majority of the people who buy cars don't care, but as a fellow performance enthusiast I understand where you're coming from.

I was at a wedding recently and a guy in a 458 rolled up and this was RIGHT after that car had become available in the US. I walked over to him and complimented him on his car and asked him what it would do in the 1/4. He said "I have know idea; I don't even know how much horsepower it has. I just bought it for the girls". Again; not altogether a bad thing IMHO.
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Old Nov 6, 2011 | 10:38 AM
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Originally Posted by Bartric
Yeah, until someone starts rating them at the rear wheels and then everyone starts saying, "Why is that car of the exact same weight with 400 rated hp beating my 450 rated hp." Then you can respond, "Because your car manufacturers don't have a damn clue what they're talking about."

They think highest number matters and helps them sell cars, but it sure wouldn't if they were being smoked by a lot of rwhp rated cars whose 'numbers' were handful lower, it'd just make their company look like a waste of money, effort, and time. Flywheel hp annoys every ounce of good thoughts out of my body because it is the most useless number in the world.
If you have never had to configure an engine to various platforms, I can see why flywheel horsepower would not matter to you.

I would be remiss, if I did not acknowledge a first for me (not only on this forum, but in my entire life), actually reading a sentence composed by an adult......where the contraction "It'd" was used.
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Old Nov 6, 2011 | 11:37 AM
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Originally Posted by lucky131969
I would be remiss, if I did not acknowledge a first for me (not only on this forum, but in my entire life), actually reading a sentence composed by an adult......where the contraction "It'd" was used.
Ouch! LMAO
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Old Nov 6, 2011 | 12:05 PM
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Originally Posted by lucky131969
I would be remiss, if I did not acknowledge a first for me (not only on this forum, but in my entire life), actually reading a sentence composed by an adult......where the contraction "It'd" was used.
It's been in use since 1859! ... where've you been?

http://www.merriam-webster.com/dictionary/it%27d
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Old Nov 6, 2011 | 12:31 PM
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Originally Posted by ZeeOSix
It's been in use since 1859! ... where've you been?

http://www.merriam-webster.com/dictionary/it%27d
Learn something new everyday
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Old Nov 6, 2011 | 01:17 PM
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Originally Posted by lucky131969
I would be remiss, if I did not acknowledge a first for me (not only on this forum, but in my entire life), actually reading a sentence composed by an adult......where the contraction "It'd" was used.



My favorite was a guy at work telling me ... "What you might could do..." And he says "I" have an accent from up north... ??? I asked him what English teacher passed him on his tests...

Toque
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Old Nov 6, 2011 | 09:32 PM
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Originally Posted by Toque



My favorite was a guy at work telling me ... "What you might could do..." And he says "I" have an accent from up north... ??? I asked him what English teacher passed him on his tests...

Toque
I think we need to get Jeff Foxworthy to judge this thread!
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Old Nov 7, 2011 | 12:19 AM
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Originally Posted by lucky131969
If you have never had to configure an engine to various platforms, I can see why flywheel horsepower would not matter to you.

I would be remiss, if I did not acknowledge a first for me (not only on this forum, but in my entire life), actually reading a sentence composed by an adult......where the contraction "It'd" was used.
it'd - it would

I'm so sorry that my southern drawl doesn't conform to your communistic English standards. No one uses thine, thou, ye, etc. either, but that doesn't make it any less correct. Dialects exist all across the world and across every language. Just because my mine doesn't please every prospect of your 'grammatically correct' life gives you no reason to take a thread and drag it off of the topic to boost your self esteem. Back to topic.

Originally Posted by cdkcorvette7
I would submit that greater than 90% of people who buy high HP cars never:

a: actually take them to a track so that the limits of the car can be tested

b: take the time to learn that there IS a difference between flywheel HP and wheel HP.

People buy fast cars for the bling factor, curb appeal, and because when they want to pass someone in traffic they can do so easily. (I don't think there's anything wrong with that btw, not everyone is as into cars as quite a few of us on this site are).
I definitely agree with all of that. And it bothers me to no end to see nearly every owner of a Corvette, or any other high performance vehicle, driving it like it's a Sunday car. Vehicles like that are meant to be driven.

And also, having the extra power to pass people in traffic is very nice, coming from someone who not too long ago replaced his '03 Cavalier with the current '99 Corvette.

(And yes lucky, I did just start two sentences with a conjunction, want to comment on that too?)
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Old Nov 7, 2011 | 01:27 AM
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It'd be nice if we could all get along.

PS - every horsepower threads goes bad for one reason or another.

Last edited by ZeeOSix; Nov 7, 2011 at 12:56 PM.
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Old Nov 7, 2011 | 02:15 AM
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Originally Posted by lucky131969
I would be remiss, if I did not acknowledge a first for me (not only on this forum, but in my entire life), actually reading a sentence composed by an adult......where the contraction "It'd" was used.
I wouldn't've bothered commenting about that.
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Old Nov 7, 2011 | 05:04 AM
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Originally Posted by Bartric
it'd - it would




I definitely agree with all of that. And it bothers me to no end to see nearly every owner of a Corvette, or any other high performance vehicle, driving it like it's a Sunday car. Vehicles like that are meant to be driven.
Maybe it is because they do not want to break the speed limit laws and end up in jail with their car crushed. LS1tech has a section for street racing and general tom foolery but I am almost 40 years old and aside from the occasional pull out and pass I rarely see quarter throttle on my treck back and forth to work every day.
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Old Nov 8, 2011 | 07:19 AM
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Originally Posted by Bartric
it'd - it would

I'm so sorry that my southern drawl doesn't conform to your communistic English standards. No one uses thine, thou, ye, etc. either, but that doesn't make it any less correct. Dialects exist all across the world and across every language. Just because my mine doesn't please every prospect of your 'grammatically correct' life gives you no reason to take a thread and drag it off of the topic to boost your self esteem. Back to topic.
Relax Francis......it's a joke.

It's just a contraction; nothing to do with dialect, or being grammatically correct.......nor did I say it was wrong in any way.

I had no way of knowing you hail from the South, but given that you somehow relate Communism and English....it does make perfect sense now...
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Old Nov 8, 2011 | 08:54 AM
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There are, in fact, cases where manufacturers understate the power of their offerings. As uncouth as it might be to mention on a Corvette forum, the new Boss 302 Mustang has chassis dynoed within 30 hp of its advertised (flywheel) rating, way out of line with the "15% loss" rule.
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