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Forum: Aerodynamics

10-01-2008, 01:38 PM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

That's true, and it is the most consistent gain...

That's true, and it is the most consistent gain I've had so far. Now I just wish I wasn't out of town for weeks at a time so I could put finishing touches on it. I will be taking the air damn off...

Forum: Aerodynamics

09-30-2008, 06:40 PM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

I finally got my grill block pics up: ...

I finally got my grill block pics up:
https://www.fuelly.com/attachments/forum/photobucket/img_124675_0_c38fc598173efa79db9abfc681561bfa.jpg
...

Forum: Aerodynamics

09-14-2008, 06:01 PM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

I added a grill block behind the grill with some...

I added a grill block behind the grill with some coroplast. I cant seem to get photobucket to upload the pictures. Anyway, I managed 13.61 mpg on the last fill up with the grill block/air dam...

Forum: Aerodynamics

08-24-2008, 04:19 PM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

Well my first fill up turned out to be 12.83 mpg....

Well my first fill up turned out to be 12.83 mpg. Not too much different from my past fills. I planned on the trip being mostly highway, but I forgot that there is a detour. So a lot of it was...

Forum: Aerodynamics

08-20-2008, 03:45 PM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

I could see that happening if the air dam was...

I could see that happening if the air dam was very close to the ground. I actually made it a couple inches higher than the lowest part of the front gear case. It is a little over 10 inches from the...

Forum: Aerodynamics

08-19-2008, 02:35 PM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

I made it out of aluminum "U" channel and angles....

I made it out of aluminum "U" channel and angles. All of it is half inch wide except for the curved bottom edge, which is 3/8 "U" channel and I used a 1 inch angle on the frame that is in front of...

Forum: Aerodynamics

08-18-2008, 08:29 AM

Replies: 14

My F250HD Air Dam

Views: 3,017

Posted By Jetta90GL

My F250HD Air Dam

After getting tired of getting 10 to 13 MPG consistently after every thing I've tried to get better MPG, I decided to put this together over the weekend. I haven't done any fill ups to check if it...

Showing results 1 to 7 of 7

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