Horsepower question - Ford Mustang Forum
 
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post #1 of 10 (permalink) Old 04-04-2012 Thread Starter
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Horsepower question

When I got my 2008 gt I thought it was 300 hp..but now I'm seeing dyno numbers that are more in the 268 range from the K and N advertisements....I added CAI from K and N and now I'm thinking about getting a Bama programmer to take it further..

I have the upgraded axle and run premium in it..but my question is why was I told it was 300 hp? Was that wrong? Or is it a number you can get if you re tune?

I still like the car..it's a vista blue premium interior with 18 inch wheels and a nice 5 speed..

Maybe someone knows more about what was advertised vs. what's real about the horsepower thing..

I'm not ready to go with a turbo..that's just too much $$...I enjoy the car a lot but am confused about this..

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post #2 of 10 (permalink) Old 04-04-2012
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HP numbers from Ford are at the crank not rear wheels.


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post #3 of 10 (permalink) Old 04-04-2012
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The 300hp that is advertised is what the motor puts to the flywheel, but power is lost through the drivetrain by friction and all that so the 268hp is the amount of power that is actually getting to the wheels... I don't know all the technical terms and big words to explain it, but that is the short story. I'm sure somebody else can do better.

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post #4 of 10 (permalink) Old 04-04-2012
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Parasitic loss is the word.

Heat, friction, slippage etc...
post #5 of 10 (permalink) Old 04-04-2012
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What all of these guys said^^^ It's not just a Ford thing, it's what every car company does. Rule of thumb, AWD has the most parasitic loss, RWD has the second most, and FWD has the least, just due to the amount of rotating mechanical parts.
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post #6 of 10 (permalink) Old 04-04-2012
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+1 to what the other people said. That 300hp is at the crank. Usually its a 15-18% loss going to the wheels. So at 268rwhp you are about 308hp at the crank.

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post #7 of 10 (permalink) Old 04-04-2012
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8-12% loss for manual
10-18% loss for automatics.
post #8 of 10 (permalink) Old 04-04-2012 Thread Starter
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Thanks you guys --I appreiate the help understanding that..
post #9 of 10 (permalink) Old 04-04-2012 Thread Starter
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Do you guys think the next best bang for my buck is the retune?

I've only looked at the Bama programmer so far..
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Quote:
Originally Posted by [email protected] View Post
Do you guys think the next best bang for my buck is the retune?

I've only looked at the Bama programmer so far..

Buy a tuner and cold air intake as a combo. Makes a world of difference, and you'll pay less for the two together than you would separately later on. American Muscle is a good place to buy and they offer combos with a tunes for life program. Check it out.

I recommend Airaid for the intake.

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Former: 2007 GT, Satin Silver
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