EcoBoost baseline power numbers
03-19-2011, 03:58 PM
#21
Senior Member
Thread Starter
03-19-2011, 04:00 PM
#22
Senior Member
Thread Starter
all motors...especially turbo motors are tuned from the factory to run rich.
03-19-2011, 04:08 PM
#23
Senior Member
I'd say it's more perception than anything but ya never know. Things do take a while to break in. Also could be using different octane fuel. Typically modern ECU's will change with lower or higher grades of fuel.
I'd gain HP and lose torque from driveline loss. Hate to say it but your math is wrong.
I'd gain HP and lose torque from driveline loss. Hate to say it but your math is wrong.driveline losses apply to both hp and tq. hp and tq are directly related.
03-19-2011, 04:19 PM
#24
Senior Member
Thread Starter
There are a lot of factors that could be off. The dyno could read high or low (I've seen cars that supposedly put out 450 WHP on one dyno put out a lot less on other ones) I'm sure if I took it to another dyno, I'd get another reading.
15% driveline loss isn't an exact figure. It could be less or could be more. Published power figures aren't always true as well.
I posted up these numbers because I haven't seen anyone else post them up. Run your truck and tell me what you get.
And finally...
03-19-2011, 07:41 PM
#25
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So what you were trying to say is that you were giving the hp and tq numbers at the crank from what his actual dyno numbers were. That makes more since. Drive line losses can be different between hp and tq. 15% is just a good round number to use for an automatic. Pickuptrucks.com did a dyno test on a 2011 5.0L with a 3.73 rearend they saw a -13.45hp and -14.30tq on a dynojet dyno.
I do know the waste gate is controlled electronically so it would be easy for the pcm to control how much boost the motor sees. When I test drove the ecoboost I could not tell much of a difference between it and the 5.0L so I choose the 5.0L with no regrets. I hope for all that bought the eco as the motor breaks in they see more horse's.
I just turned over a 1000 miles on my truck and it seems the seat of the pants Dyno tells me it is getting better. My mileage has gone up about 1mpg since new.
03-20-2011, 01:41 PM
#26
Senior Member
Should I return the truck since you say something is "seriously wrong with that engine"?
There are a lot of factors that could be off. The dyno could read high or low (I've seen cars that supposedly put out 450 WHP on one dyno put out a lot less on other ones) I'm sure if I took it to another dyno, I'd get another reading.
15% driveline loss isn't an exact figure. It could be less or could be more. Published power figures aren't always true as well.
I posted up these numbers because I haven't seen anyone else post them up. Run your truck and tell me what you get.
There are a lot of factors that could be off. The dyno could read high or low (I've seen cars that supposedly put out 450 WHP on one dyno put out a lot less on other ones) I'm sure if I took it to another dyno, I'd get another reading.
15% driveline loss isn't an exact figure. It could be less or could be more. Published power figures aren't always true as well.
I posted up these numbers because I haven't seen anyone else post them up. Run your truck and tell me what you get.
no, I think the numbers are fine, youre the one who said my calculations were off. I calculated numbers at the crank based on what you posed using an assumed 15% driveline losses and they are close to what Ford publishes.
BTW, thanks for posting the numbers.
Last edited by 11screw50; 03-21-2011 at 08:36 AM.
03-22-2011, 11:13 AM
#28
BAMF Club
^ thanks for posting that graph.
03-22-2011, 04:32 PM
#30
FX4 SCrew TT'd V6
Take graphs (dyno results) with a gain of salt. Often the RPM scale is wrong, and depending on how they load it, the torque curve will be different. The gear selected will give a differeng looking graph. Dyno graphs are good for generally speaking and comparing before and after mods, that is all they should be used for.
It appears they didn't step on it until 1700 rpms, which the turbos would need time to spool, I think they climb pretty well.