B13 '91 Nissan Sentra aero mods.
I like to compete in economy run events and have used a few different cars over the past few years. One I haven't tried yet was my '91 Sentra SE-R [2.0 liter - 5 speed]. It's been lightened considerably from it's original [approx] 2450 lbs. down to 2020 lbs.
http://img.photobucket.com/albums/v4...DSC06153-1.jpg I normally use it for rallycross competition, but because of it's weight reduction, I decided to see what I could get from it in the recent Tri-State Fuel Economy Run event. I had three 4'x8' sheets of black choroplast and some lexan recycled from another older project. The following are the mods I came up with from browsing these forums. http://img.photobucket.com/albums/v4...nSE-R007-1.jpg First up was recycling the choroplast belly pan from my Datsun B210. The '91 Sentra is longer and a bit wider than the B210 so it isn't quite a full belly pan. This is looking from the rear axle area towards the front of the car. http://img.photobucket.com/albums/v4...nSE-R006-1.jpg Looking behind the rear axle. To the left of the picture is the back bumper. http://img.photobucket.com/albums/v4...nSE-R002-1.jpg Starting to fabricate the side skirts and rear wheel fairings. http://img.photobucket.com/albums/v4...RunSE-R010.jpg These are the rear wheel spats I came up with. I am wondering if I made them too big/wide? http://img.photobucket.com/albums/v4...RunSE-R002.jpg Front end closed in. I don't have the grill block taped on yet in this pic. I used a digital water temp gauge to determine the size of the cooling opening you see. The engine runs between 200-210 deg. F. The cooling fan comes on at 213 deg. Any comments or feedback are welcome on the profile I came up with under the bumper. http://img.photobucket.com/albums/v4...RunSE-R006.jpg I used a combination of choroplast and lexal pop riveted over light aluminum angle from the Home Depot. I mocked up the supports for the Kamm panel from cardboard. http://img.photobucket.com/albums/v4...RunSE-R008.jpg Then I bent them from aluminum strap. I used 3M body moulding tape to attach them to the trunk lid. http://img.photobucket.com/albums/v4...RunSE-R009.jpg Complete rear section. Now it was 2:00 am the morning of the event. Enough is never enough so I decided I needed to close in the front wheels as well. So I spent the next two hours fabbing up front wheel fairings. I wanted to connect the upper to the lower and build a full boat tail but ran out of time. http://img.photobucket.com/albums/v4...RunSE-R018.jpg After 1 hour of sleep I an ready to go on Sunday morning in Williamstown, MA for the event. http://img.photobucket.com/albums/v4.../ecorun047.jpg The car performed very well, netting a result of 76.04 mpg over the 105 mile course. I very much welcome any constructive criticisms as I did all of this from the seat of my pants with no angle measuring or tuft testing. Thanks, Mike |
Um, I'm guessing the front wheels still steer, but how??
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WOW great work, looks great did you ever finish the full boat tail? Pictures?
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Impressive work !
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Looks great to my eyes.
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Nice! Considering everything you did and 70+ mpg I doubt you left much loss on the table. I can visualize rear end eddies tucking under what overhang you have so I'm skeptical how much more a full boat tail could help. Cool beans! :D
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Love it !
I would definitely drive that. |
Do you enter NASCAR or General Lee style? Clean & tidy and very reproducible for many.
Vaporware, is not so vaporware. http://ecomodder.com/forum/attachmen...5&d=1296259422 http://ecomodder.com/forum/attachmen...6&d=1296259422 |
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http://img.photobucket.com/albums/v4...RunSE-R013.jpg I know that the sharp crease on each of the [top to side] panels of the tail are not ideal, but is there anything fundamentally wrong with how the tail ends, or how abruptly each lower side panel ends near the rear bumper? Mike |
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