DaGnoma gets a cap

[SCNTN]

Yeah a blast from the past! MPG gains were great for the short time I had the cap. I was able to squeak out close to 36 MPG highway cruising at 60. My average commute was around 32 MPG, 40 miles each way with about 70% highway miles. I've since given the truck to my nephew, and all he cares about is shredding tires. lol
I tapered the back of the cap just to extend the trailing edge without creating a hazard to people walking near it. It was just an extension though, it didn't curve downward or anything. Plus, I thought it looked better.

[canadian_yeti]

the part i was talking about with the curve/taper was in the center from the roof line to the tailgate. im fairly new to this site and im not sure how to take one of your pics and point out what im talking about.

[SCNTN]

Gotcha. Take a look at the fifth picture at the beginning of this thread - the aero profile overlay. Search for that aero template on the site here and you should find plenty of info. It's better to have a gradual curve like that than a straight line for "attached airflow".

[canadian_yeti]

here we go. this is the curve i was talking about

its tagged under my album cause its so far the only way i know how to attach pics. i hope you dont mind, as i intend to use your pics as a reference for the cap i intend to build

[SCNTN]

Nope, it's flat. Look at the album I put of pics taken during the daylight hours. I think the shape of the tail end of the cap is creating a bit of an illusion.

Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - SCNTN's Album: DaGnoma Cap

[ChopStix]

The Chevy Astro that I had, had the same engine and a 4L60E automatic. I was getting 27-28 mpg in a far worse aero package than your S10. I would say your mileage results are very parallel to my results considering how my truck was brick shaped and yours is more sleek. (especially with the aero cap) I would have liked to have seen the results of your finished belly pan with the aero cap as I always thought my van would have gained 2-4 mpg from a belly pan. I say this as I had all kinds of junk hanging under mine....

[canadian_yeti]

Originally Posted by SCNTN

Nope, it's flat. Look at the album I put of pics taken during the daylight hours. I think the shape of the tail end of the cap is creating a bit of an illusion.

Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - SCNTN's Album: DaGnoma Cap

aahhh ok, i see what you mean. thanks for clearing that up

[freebeard]

Coming soon... aero accessories by LowCd!

You might put a placeholder in that empty Godaddy iframe.