Good morning all. Ive searched the net, Ive tried searching here but I cant find anything. What is the difference between 2012 and 2013 coyotes? Where did the 8hp come from? I think I read some where that the oil squirters are gone too. Just wondering, I find this stuff interesting.
Difference between 2012 and 2013 Coyote V8
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Usmc1488
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Guy?
I realize you are talking about dyno results, chassis dyno results. I am saying you need to compare chassis dyno results and engine dyno results in order to know what percentage you have for a driveline loss. Otherwise you are making assumptions about horsepower developed at the crankshaft. Even though you can come with a very good educated guessyou cannot call it a fact. That is it.
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.................................The 2011-12 GT's are underrated. However you want to prove it is fine. Generally, the 12/13's make the same power. However you want to "prove" it, cool. Some people like to just go back and forth just because....
Let's get back to the thread at hand.
I'm not trying to prove whether or not they are underrated. I'm saying that you can't throw out assumptions for numbers and call them fact when you really don't know what they are. In the end I really don't care if they are rated at 412 hp or 450 hp.
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The oil squirters were taken out of the 13 MY. I have a dealer tech manual with exploded views of the 2012-2013 engines and the piston oil squirters are not listed for '13 but are for '12.
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We have beaten this subject to DEATH,many times over, and in the end it always ends up the same way,lets just all be happy with the Mustang we have, and move on.
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Sorry guys, I did search. I didn't realize I brought up a beat to death thread. I'll go back to hammering the back roads and experimenting with my koni shock settings!closed.gif2
For starters, OP, you have done nothing wrong by asking. Yes there are many threads on this topic here already, most chock full of dis-information and half truths, based on assumptions from various magazine and internet articles that were out at the time the 2013's were being introduced.
Our fearless leader, Sean, has debunked a great number of the myths that were started by well meaning people that read speculation by journalists who are paid, to well, speculate, and ran with it.
I am sure of one thing: My wife's 2012 has the squirters. I am only assuming that my 2014 does not, and the more I read, the more confused I get.
I am also a believer that the 8hp increase between 2012 and 2013 was a paper increase only, but I could be wrong because I have no way to back that up. My butt dyno sure isn't calibrated tightly enough to tell that difference. My wife and I plan to take 'em to the track this summer and make multiple runs in each others cars and average the times out to see where we come out (that's the kinda research I can live with, LOL).
#8 Failures? How many documented #8 failures have there been in completely stock Coyotes? I have only read of one on this forum where we could nail down that the victims engine was completely unmolested (no tune, no power adders, nothing) as an absolute fact. Most of the time someone has come here to report one they either disappear after a single post that gets everyone stirred up, or it comes out that they were tuned (etc). I have noticed as the tuners have gotten more experienced with these engines that the "reports" of #8 failures has slowed to a trickle.
Last point: 15% off of 412 is 350.2, and 15% off of 420 is 357. Percentages don't work the same way going in both directions. I have seen baseline stock chassis dyno #s of 2011-2014 Coyotes all over the map from the high 340's to low 370's and there are so many variables that go into those numbers that I couldn't explain them all even if I understood them all myself. There is only one sure fire way to see what you are putting down. Take it to the track and what kind of times (and more importantly in the HP department, trap speeds) you are getting.
So keep asking away, and between all of us, we may just be able to nail this down once and for all.
Our fearless leader, Sean, has debunked a great number of the myths that were started by well meaning people that read speculation by journalists who are paid, to well, speculate, and ran with it.
I am sure of one thing: My wife's 2012 has the squirters. I am only assuming that my 2014 does not, and the more I read, the more confused I get.
I am also a believer that the 8hp increase between 2012 and 2013 was a paper increase only, but I could be wrong because I have no way to back that up. My butt dyno sure isn't calibrated tightly enough to tell that difference. My wife and I plan to take 'em to the track this summer and make multiple runs in each others cars and average the times out to see where we come out (that's the kinda research I can live with, LOL).
#8 Failures? How many documented #8 failures have there been in completely stock Coyotes? I have only read of one on this forum where we could nail down that the victims engine was completely unmolested (no tune, no power adders, nothing) as an absolute fact. Most of the time someone has come here to report one they either disappear after a single post that gets everyone stirred up, or it comes out that they were tuned (etc). I have noticed as the tuners have gotten more experienced with these engines that the "reports" of #8 failures has slowed to a trickle.
Last point: 15% off of 412 is 350.2, and 15% off of 420 is 357. Percentages don't work the same way going in both directions. I have seen baseline stock chassis dyno #s of 2011-2014 Coyotes all over the map from the high 340's to low 370's and there are so many variables that go into those numbers that I couldn't explain them all even if I understood them all myself. There is only one sure fire way to see what you are putting down. Take it to the track and what kind of times (and more importantly in the HP department, trap speeds) you are getting.
So keep asking away, and between all of us, we may just be able to nail this down once and for all.
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The FORD rep on this board confirmed that the "oil squirters" were in the 2013s. I believe that is the same for the 2014s, but I have not asked the question about the 2014s...
http://www.allfordmustangs.com/forums/2011-mustang-gt-tech/367917-11-12-coyote-vs-13-coyote.html
The pistons were redesigned in the 2013MY Coyote engine and a "low friction coating" was used to reduce power loss from piston/cylinder friction. The total from these changes was 8HP. Hardly anything that can be measured anywhere but an engine test stand dyno.
http://www.allfordmustangs.com/forums/2011-mustang-gt-tech/367917-11-12-coyote-vs-13-coyote.html
The pistons were redesigned in the 2013MY Coyote engine and a "low friction coating" was used to reduce power loss from piston/cylinder friction. The total from these changes was 8HP. Hardly anything that can be measured anywhere but an engine test stand dyno.
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OK! Folks, this is moving from a question & answer thread into an argument over basically nothing. the existence or non existence of the oil squirters on these engines is not worth getting all riled up over, so I think its time to put this one to bed before it leads to trouble.closed.gif2
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