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Why do the 5.0's in the trucks put out so much less then the Mustangs?

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Old 03-16-2016, 01:31 PM   #1
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Default Why do the 5.0's in the trucks put out so much less then the Mustangs?

I know there is more drivetrain loss, but still, 75-100rwhp difference on a tuned 5.0 between the truck and the car?


I was disappointed to see tuned 5.0 F150's with some bolt-ons only around 320rwhp...


Sorry for the ignorance I'm new to trucks and just don't know the difference. Maybe totally different heads or something?
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Old 03-16-2016, 05:24 PM   #2
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Most likely the cams....you can pick them for high rpm HP or lower rpm torque but you can't pick both. Could also be the heads/pistons/compression ratio.
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Old 03-16-2016, 05:46 PM   #3
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http://www.f150forum.com/f70/5-0-mus...ference-85904/

http://www.f150forum.com/f70/5-0-vs-5-0-a-246299/

more details in there
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Old 03-16-2016, 11:21 PM   #4
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1/2 a point of compression is worth about 10 hp, the cams are 10-20, and the calibration is probably the rest. Livernois was only able to tune about +15 hp into the mustang but they got 30 from the truck. The cars have tubular headers, but I have data that says they are no better flowing than the trucks cast manifolds.

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Old 03-21-2016, 02:13 PM   #5
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As mentioned, intake cams, manifolds, and tune. I can see the 40 HP spread being made up pretty easily with those things so it makes sense.
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Old 03-21-2016, 11:37 PM   #6
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compression, cams, intake manifold, headers, and tune. biggest difference is 5500RPM redline vs 6500RPM!! shorthand HP rating is RPM*TQ/5252. 1k drop in rpm will drastically reduce HP
the F-150 does have standard piston oil squirters (for 2011 at least)
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Old 03-30-2016, 11:53 AM   #7
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Quote:
Originally Posted by safetypin View Post
compression, cams, intake manifold, headers, and tune. biggest difference is 5500RPM redline vs 6500RPM!! shorthand HP rating is RPM*TQ/5252. 1k drop in rpm will drastically reduce HP
the F-150 does have standard piston oil squirters (for 2011 at least)
Nailed it on the differences. BTW, my 13 F150 5.0 shifted at 62-6500 stock. Are you sure about the 5500 redline?
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Old 03-31-2016, 11:36 PM   #8
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the rated HP for the f150 is at 5500, mustang 5.0 is at 6500.


my personal truck is tuned to shift at like 6300 and my work truck shifts far sooner when the throttle is in - haven't hit the max rpm shift point yet. i'll have to check tomorrow.


both coyote 5.0s - my own truck is a '11, my work truck a '13.
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Old 04-02-2016, 12:59 PM   #9
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The mustang 5.0 makes power waaaay up in the rpm range and peaks at 6500 rpm. Not good for a truck so ford tries to tweak it to make up for the power curve. It's the design of the engine.
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Old 04-02-2016, 04:05 PM   #10
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A local guy has a whipple on his 2015 mustang gt auto and dynod 651/498.

My truck has the whipple kit that has the same head unit, intercooler, and similar tune. I swapped out the 3.75" f-150 pulley for the smaller 3.625" mustang pulley. So, if the difference between the car and truck is the compression, tune, cams, and exhaust, I've basically taken compression and tune differences out of the picture. Mine dynod 593/493. However, mine peaked at the rev limiter at 6700 rpm. His peaked at 7300. If you compare them from 6700 and down, they were nearly identical.

This leads me to believe the exhaust and cams aren't that different, and that the biggest change is the tune. The compression is maybe 10 hp.

Edit: I'm finding if you compare tuned vs tuned, auto vs auto, the difference is more like 15-20 rwhp. If 10 of that is compression, that leaves very little difference for the cams and exhaust. There used to be a dyno comparison between afe long tube headers and stock and the headers only added 4 peak hp. It appears as though that wasn't selling any headers so it was removed from the Internet.

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