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NCV3 Write-Ups Help other NCV3 owners by posting your experience working on your Sprinter.

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Old 04-20-2019, 12:16 AM   #21
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Default Re: High roof sprinter with rack

This is a 144 with a Prime Design rack. The advantage is you can put the cross bars anywhere. I also have an AC and vent fan. The AC is the highest point by a few inches. Mach 8
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Old 04-24-2019, 12:52 AM   #22
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Default Re: High roof sprinter with rack

wrong vent and wrong colour but it is a high top
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File Type: jpg rack 2.jpg (99.9 KB, 79 views)

Last edited by lruss; 04-24-2019 at 12:54 AM.
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Old 05-20-2019, 04:09 PM   #23
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Default Re: High roof sprinter with rack

Originally Posted by THE View Post
Interested in that air dam up front?
Actually that air dam is causing some issues. I'm no engineer so everything I build is mostly based on a common since approach. Being a pilot and understanding the drag associated with flat surfaces I decided to try to direct the airflow over the top. So the dam was constructed with about a 3/16 gap between the dam and the top of the Sprinter. I knew going in there was a possibility of air lifting up the dam or worse the air flow could cause flutter. And sure enough the first time I took it for a test drive at about 80 MPH it did just that, I hit the brakes and it stopped immediately. I could slid the whole rack to the rear of the van and close the gap between the Sprinter and the Dam, but I suspect the rack would eventually rub the top of the sprinter. Especially knowing how much these vans flex.

Therefore I decided to try a layer of gray tape between the dam and Sprinter roof and this time no flutter. I've put about a 1,000 miles on the van with no issues since I sealed the air gap. Thanks to Amazon I now have a roll of rubber seal I'm going to install that should work equally as well as the ugly tape, I just need to get it installed.
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