⚡ Ford Lightning Forum ⚡ banner
1 - 13 of 13 Posts

· Registered
Joined
·
355 Posts

· Registered
Joined
·
107 Posts
So I have these and have installed them. They aren't for a lightning because the fenders on the Lightning are different. The ICE F150 has 'square' corners around the wheels, the Lightning has 2 45 degree angles. The rears also have a christmas-tree in a different spot.

Aero wise, they are at worst 'even', at best, a slight improvement based on me doing the same drives on CC at 70mph before and after (which got me a .1 mi/kwh improvement).
 

· Administrator
2021 Mustang Mach E First Edition, 2016 Nissan Leaf, 2003 Toyota Tacoma, F-150 Lightning Lariat ER
Joined
·
3,774 Posts
Not for Lighting because they have a negative affect on you aero. They are great little parachutes to catch air & suck down your range @ freeway speeds.😎
Since these are immediately behind the tires and the tires generate large regions of turbulence, why do you think they will affect the aero? Is this a guess or have you seen tests or modeling to support this?
 
  • Like
Reactions: ErichKeane

· Registered
Joined
·
355 Posts
Since these are immediately behind the tires and the tires generate large regions of turbulence, why do you think they will affect the aero? Is this a guess or have you seen tests or modeling to support this?
.
"In general, mud flaps are infamous for producing drag."

A Google search on the subject will produce a bounty of results, but even small stylish mud flaps have a pretty dramatic effect on a model 3. Door handles and mirrors produce measurable negative effects, mud flaps by contrast are cute little parachutes.
😎
 

· Registered
Joined
·
107 Posts
.
"In general, mud flaps are infamous for producing drag."

A Google search on the subject will produce a bounty of results, but even small stylish mud flaps have a pretty dramatic effect on a model 3. Door handles and mirrors produce measurable negative effects, mud flaps by contrast are cute little parachutes.
😎
One thing to note, the model-3 has a much different wheel well, so I'm not sure you can compare them. The 'looser' wheel well of the F150 could potentially benefit significantly for a 'more surrounding' well, caused by mud flaps.

The one rule aerodynamics-experts ALWAYS point out is: You cannot make assumptions about aerodynamics. Modern drag simulators/modelers show that what was once 'assumed' as 'rules of thumb' are far from it, and differ from one model to another.
 

· Administrator
2021 Mustang Mach E First Edition, 2016 Nissan Leaf, 2003 Toyota Tacoma, F-150 Lightning Lariat ER
Joined
·
3,774 Posts
.
"In general, mud flaps are infamous for producing drag."

A Google search on the subject will produce a bounty of results, but even small stylish mud flaps have a pretty dramatic effect on a model 3. Door handles and mirrors produce measurable negative effects, mud flaps by contrast are cute little parachutes.
😎
A Model 3 is shaped like a suppository. A Lightning is shaped like a brick.
A Model 3 has wheel arches that are tight around the edges of the tires. A Lightning has large vacuous spaces around the tires.

I did a Google search and found nothing on the impact of mud flaps on an F-150's aerodynamics.
 
  • Like
Reactions: ErichKeane

· Registered
Joined
·
355 Posts
The area surrounding the wheels has massive impact on aerodynamics, it is a major focal point for even ICE trucks. Look at the air injection the manufacturers are putting into the fascia to try to get the air to go over the wheel well smoother.

I suppose anything is possible, but dollars to donuts says that any messing with that area is not going to be an improvement.
😉
I noticed that the Lightning has plastic chip guards on the lower fenders there, I am betting for exactly that purpose. That is what they found to be the best aero answer for the truck, or chances are they would have done something differently.
 

· Registered
Joined
·
355 Posts

Here is a thesis for anybody interested in wheel well aerodynamic principles, and the mechanics of why mudflaps may not be your friend if you are trying to maximise range on the highway.

The NASCAR race last weekend was in Watkins Glen, New York. It rained, and NASCAR required the teams to install windshield wipers and and mudflaps on the rear. Much was made of the fairness of if teams rigged thier flaps to "break away", because this would give them a significant aero advantage.

How much does it matter on an F-150? Not as much as a racecar for sure. It is just good to know that the wheel well is a sensitive area, and can have an effect.
:cool:
 

· Registered
Joined
·
371 Posts
What impact have you noticed? I am sick of trying to cleaning rocks, sand and snow off of the running boards before putting in the garage.
 

· Registered
Joined
·
360 Posts
  • Like
Reactions: Mujenpwr
1 - 13 of 13 Posts
Top