IS THIS FOR REAl?! B.t.w I hate mustangs!

[retro500]

2011 Mustang 5.0

3rd gear (1.69:1)
Horsepower: 365.26 hp @ 6600 rpm
Torque: 335.27 lb ft @ 4500 rpm

4th gear (1.32:1)
Horsepower: 377.99 hp @ 6500 rpm
Torque: 351.44 lb-ft @ 4400 rpm

2011 Mustang V-6

3rd gear (1.67:1)
Horsepower: 268.06 hp @ 6700 rpm
Torque: 249.95 lb-ft @ 4000 rpm

4th gear (1.24:1)
Horsepower: 267.11 hp @ 5800 rpm
Torque: 259.90 lb-ft @ 4100 rpm

Now here is where it gets interesting. Those numbers are what the V-8 and V-6 Mustangs are putting down at the rear wheels, without factoring in anywhere from 10-25 percent of output lost to friction. Motor Trend's tech department recommendation is a bit more conservative 15 percent.* After examining the power peaks, K&N's techs suggested we use the fourth gear pulls for the 5.0-liter and third gear pulls for 3.7-liter.* With that we arrive at what we think are the most correct output figures for the 2011 Mustangs:

2011 Mustang 5.0 (4th gear pull, 15% powertrain loss)
Claimed horsepower: 412 hp @ 6500 rpm
Claimed torque: 390 lb-ft @ 4250 rpm
Actual horsepower: 435 hp 6500 rpm
Actual torque: 404 lb-ft @ 4400 rpm

2011 Mustang V-6 (3rd gear pull, 15% powertrain loss)
Claimed horsepower: 305 hp @ 6500 rpm
Claimed torque: 280 lb-ft @ 4250 rpm
Actual horsepower: 308 hp @ 6700 rpm
Actual torque: 287 lb-ft @

[ahart04]

Nothing is true until they hit the street...in my eyes..

[Captain Awesome]

I'm sure if we dyno tested every (stock) Camaro on the forum we could come up with some that were above the factory rating.

[Sax1031]

I am more interested in production(customer) cars and not pressers. I want to see the numbers they put out.

[TheCaptain]

Originally Posted by Captain Awesome

I'm sure if we dyno tested every (stock) Camaro on the forum we could come up with some that were above the factory rating.

Tis very true. Dynoing a lot of 05 - 07 Cobalt SS SuperCharged's showed us GM definitely underrated that engine! I'm sure the Camaro will have its curve too.

[8cd03gro]

Either way it goes, this proves some people wrong. If these cars are ringers, they have a more aggressive tune. If that's the case and they actually produce only claimed numbers without the tune, then the 5.0 responds better to tune only than many of the camaro guys want to admit. If this is not the case then the cars are underrated from the factory. Take it as you like, either way the numbers are impressive.

[DGthe3]

Ah yes the magical 15% drive line loss which 'proves' cars are under rated. 15% is a guide, a guess, a rule of thumb. Many modern manual transmissions are around 13% loss, and environmental conditions (if not corrected) can easily account for a 5% gain or loss.

Was that you doing the math for the 'true' numbers or was it Motor Trend?

[duder4thgen]

Originally Posted by DGthe3

Ah yes the magical 15% drive line loss which 'proves' cars are under rated. 15% is a guide, a guess, a rule of thumb. Many modern manual transmissions are around 13% loss, and environmental conditions (if not corrected) can easily account for a 5% gain or loss.

Was that you doing the math for the 'true' numbers or was it Motor Trend?

Add to the fact that drivetrain loss is not linear, and assuming it would be guesstimating at best.

Here is the link to the Motortrend article he got this from- http://wot.motortrend.com/6659607/au...v-6/index.html

Essentially Motortrend claimed the 5.0 has 435 hp at the flywheel so they could say its 'considerably more' than the Challenger and Camaro. So a car magazine making an attention getting baseless claim so people will still realize they exist.. no way.

[Georgie]

bah who cares. enjoy your camaro.

[big hammer]

the torque seems pretty poor at the wheels

[Sax1031]

If you want torque buy a diesel.

[cab2g]

Originally Posted by Sax1031

If you want torque buy a diesel.

I hear electric engines are pretty torquey as well... Diesel Hybrid Camaro???












KIDDING!

[Sax1031]

Originally Posted by cab2g

I hear electric engines are pretty torquey as well... Diesel Hybrid Camaro???












KIDDING!

I forgot about electric motors.

[DGthe3]

Originally Posted by duder4thgen

Add to the fact that drivetrain loss is not linear, and assuming it would be guesstimating at best.

Here is the link to the Motortrend article he got this from- http://wot.motortrend.com/6659607/au...v-6/index.html

Essentially Motortrend claimed the 5.0 has 435 hp at the flywheel so they could say its 'considerably more' than the Challenger and Camaro. So a car magazine making an attention getting baseless claim so people will still realize they exist.. no way.

Then that gives them even less credibility for this. 378 hp on the dyno, and assuming 15% loss, doesn't work out to 435 at the flywheel. Its actually 445 hp. Claiming 435 would be a 15% gain from the wheel, which isn't how it works. You have to divide the measured dyno number by 100%-loss%. I can forgive average enthusiasts for not knowing this, but not a publication like Motor Trend.