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2011-2014 Mustangs
2011-2014 Mustang Talk
Whats up with fords horsepower ratings?
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<blockquote data-quote="Driver72" data-source="post: 9764449" data-attributes="member: 105832"><p>This has been the case with many cars for quite some time now.</p><p>Ford is just finally catching up with the times and making a car designed for premium fuel have computer adjustments to lower power for anything less than 91 octane.</p><p>Some cars (like my BMW 335i's) worked the other way too.</p><p>It was designed for 91 Octane but put in 93 Octane and within a few WOT pulls you'd get 4-5 rwhp more on a stock motor.</p><p>Use 100 Octane and it would increase a few more.</p><p>It seemed like 95-96 Octane was the max octane the ECU would adjust for on a stock car. Of course the aftermarket tuners allowed more where the difference between 91 and 100 Octane would result in 20-25 rwhp.</p><p></p><p>it's necessary anyway, as they don't want engine problems occuring from people who "accidentally" put in 87 Octane, or have a wife who might drive the car and not know any better put in 87 Octane, or be on a trip only to come across a lone gas station that is out of 91 or 93 Octane and you have to put in 89 or 87.</p><p>Or just have a cheap skate who doesn't want to spend the extra $2-3 a tank to put in premium.</p><p></p><p>Having the ECU adjust down for those circumstances protects the engine and in the long run saves Ford money on warranty claims if engine damage occurs over 40-50k miles of using subpar gas.</p></blockquote><p></p>
[QUOTE="Driver72, post: 9764449, member: 105832"] This has been the case with many cars for quite some time now. Ford is just finally catching up with the times and making a car designed for premium fuel have computer adjustments to lower power for anything less than 91 octane. Some cars (like my BMW 335i's) worked the other way too. It was designed for 91 Octane but put in 93 Octane and within a few WOT pulls you'd get 4-5 rwhp more on a stock motor. Use 100 Octane and it would increase a few more. It seemed like 95-96 Octane was the max octane the ECU would adjust for on a stock car. Of course the aftermarket tuners allowed more where the difference between 91 and 100 Octane would result in 20-25 rwhp. it's necessary anyway, as they don't want engine problems occuring from people who "accidentally" put in 87 Octane, or have a wife who might drive the car and not know any better put in 87 Octane, or be on a trip only to come across a lone gas station that is out of 91 or 93 Octane and you have to put in 89 or 87. Or just have a cheap skate who doesn't want to spend the extra $2-3 a tank to put in premium. Having the ECU adjust down for those circumstances protects the engine and in the long run saves Ford money on warranty claims if engine damage occurs over 40-50k miles of using subpar gas. [/QUOTE]
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Whats up with fords horsepower ratings?
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