Notices
5.0L V8 Technical Discussions Any questions about the 'Coyote' engine, transmission, exhaust, tuners/CAI, or gearing can be asked here!

Aluminator XS torque rating?

Thread Tools
 
Search this Thread
 
Old 03-06-2016, 09:28 AM
  #1  
ccwebb
1st Gear Member
Thread Starter
 
ccwebb's Avatar
 
Join Date: Oct 2007
Location: CA
Posts: 142
Default Aluminator XS torque rating?

Trying to determine the torque rating for the XS. Seems to require national security clearance because every source I've found just parrots the factory spec of 500 HP but no torque rating. Thanks in advance!
ccwebb is offline  
Old 03-07-2016, 03:37 PM
  #2  
ccwebb
1st Gear Member
Thread Starter
 
ccwebb's Avatar
 
Join Date: Oct 2007
Location: CA
Posts: 142
Default

Finally found some seemingly reliable info in case anyone else was wondering.
LMR has a video of a 2011 into which they installed an XS and it was dyno'd at 457 Max HP and 388 Max ft lbs torque.
ccwebb is offline  
Old 03-07-2016, 07:35 PM
  #3  
jz78817
4th Gear Member
 
jz78817's Avatar
 
Join Date: Jul 2011
Location: Michigan
Posts: 1,329
Default

a normally aspirated 5.0 liter V8 is going to be capped at more or less 400 lb-ft based on peak feasible BMEP.
jz78817 is offline  
Old 03-07-2016, 07:41 PM
  #4  
ccwebb
1st Gear Member
Thread Starter
 
ccwebb's Avatar
 
Join Date: Oct 2007
Location: CA
Posts: 142
Default

Yeah, makes sense I suppose. I suspected that the XS torque rating wouldn't be much higher than the Aluminator. The odd part is that Ford lists the HP and Torque for the Aluminator but only HP for the XS which seems to carry over to every site out there.
That said either would work for me.
ccwebb is offline  
Old 03-08-2016, 10:08 AM
  #5  
Dino Dino Bambino
4th Gear Member
 
Dino Dino Bambino's Avatar
 
Join Date: Oct 2014
Location: Cyprus (EU)
Posts: 1,572
Default

Originally Posted by ccwebb
Finally found some seemingly reliable info in case anyone else was wondering. LMR has a video of a 2011 into which they installed an XS and it was dyno'd at 457 Max HP and 388 Max ft lbs torque.
Here's the dyno pull:



Factoring in a 12% drivetrain loss, that 519hp & 441lbft at the flywheel.
Incredible numbers from a 5.0L engine!
Dino Dino Bambino is offline  
Old 03-08-2016, 11:15 AM
  #6  
ccwebb
1st Gear Member
Thread Starter
 
ccwebb's Avatar
 
Join Date: Oct 2007
Location: CA
Posts: 142
Default

No doubt. It's an amazing performer. Hell, the normal Coyote would be all the engine I would ever need. Given the XS performance I'm surprised that Ford doesn't list a torque rating for the XS. They don't need to be shy about it that's for sure.


Originally Posted by Dino Dino Bambino
Here's the dyno pull:



Factoring in a 12% drivetrain loss, that 519hp & 441lbft at the flywheel.
Incredible numbers from a 5.0L engine!
ccwebb is offline  
Old 03-08-2016, 07:37 PM
  #7  
jz78817
4th Gear Member
 
jz78817's Avatar
 
Join Date: Jul 2011
Location: Michigan
Posts: 1,329
Default

Originally Posted by ccwebb
No doubt. It's an amazing performer. Hell, the normal Coyote would be all the engine I would ever need. Given the XS performance I'm surprised that Ford doesn't list a torque rating for the XS. They don't need to be shy about it that's for sure.
there's really no reason to. Consider all of the variants of the engine:

2011-2012 Mustang: 412hp, 390 lb-ft.
2013-2014 Mustang: 420hp, 390 lb-ft.
2012-2013 Boss 302: 444 hp, 380 lb-ft.
2011-2015 F-150: 380 hp, 387 lb-ft.
2015-2016 Mustang: 435 hp, 400 lb-ft.

see that? they all have 380-400 lb-ft, though with varying horsepower ratings. like I said, a normally aspirated 5.0 liter engine is going to be capped at about 400 lb-ft. the engines with higher horsepower ratings make that peak torque at a higher RPM. I'd be willing to bet the Aluminator XS still doesn't make more than 390-400 lb-ft but revs higher.
jz78817 is offline  
Old 03-08-2016, 07:48 PM
  #8  
ccwebb
1st Gear Member
Thread Starter
 
ccwebb's Avatar
 
Join Date: Oct 2007
Location: CA
Posts: 142
Default

Makes sense, but for fourteen large it would be nice to have the manufacturer throw in a torque rating.


Originally Posted by jz78817
there's really no reason to. Consider all of the variants of the engine:

2011-2012 Mustang: 412hp, 390 lb-ft.
2013-2014 Mustang: 420hp, 390 lb-ft.
2012-2013 Boss 302: 444 hp, 380 lb-ft.
2011-2015 F-150: 380 hp, 387 lb-ft.
2015-2016 Mustang: 435 hp, 400 lb-ft.

see that? they all have 380-400 lb-ft, though with varying horsepower ratings. like I said, a normally aspirated 5.0 liter engine is going to be capped at about 400 lb-ft. the engines with higher horsepower ratings make that peak torque at a higher RPM. I'd be willing to bet the Aluminator XS still doesn't make more than 390-400 lb-ft but revs higher.
ccwebb is offline  
Old 03-08-2016, 08:18 PM
  #9  
jz78817
4th Gear Member
 
jz78817's Avatar
 
Join Date: Jul 2011
Location: Michigan
Posts: 1,329
Default

Originally Posted by ccwebb
Makes sense, but for fourteen large it would be nice to have the manufacturer throw in a torque rating.
well, I'll tell you what it is.

Somewhere between 380 and 400 lb-ft.
jz78817 is offline  
Old 03-08-2016, 08:22 PM
  #10  
ccwebb
1st Gear Member
Thread Starter
 
ccwebb's Avatar
 
Join Date: Oct 2007
Location: CA
Posts: 142
Default

Thanks!


Originally Posted by jz78817
well, I'll tell you what it is.

Somewhere between 380 and 400 lb-ft.
ccwebb is offline  


Quick Reply: Aluminator XS torque rating?



All times are GMT -5. The time now is 12:18 AM.