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Old 02-03-2018, 09:52 PM   #11 (permalink)
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I work with folks that worked on the Saturn Bonneville stuff. I'll ask if that was a wind tunnel developed setup. If so, I may be able to find some data.

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Old 02-03-2018, 10:06 PM   #12 (permalink)
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Quote:
Originally Posted by aerohead View Post
The Ford 999,Chevy Ecotec,and VW Jetta hybrid land speed record cars,all used this sort of elongation.
Just a minor correction--the Jetta LSR did not have a decklid extension when I saw it at the LeMay Museum in 2014, or in the photos from Bonneville.





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Old 02-04-2018, 10:55 AM   #13 (permalink)
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Originally Posted by ennored View Post
I work with folks that worked on the Saturn Bonneville stuff. I'll ask if that was a wind tunnel developed setup. If so, I may be able to find some data.
That would be wonderful! Itís really hard finding good data for something like the Saturn I drive...
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Old 02-10-2018, 12:59 PM   #14 (permalink)
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correction

Thanks Vman! I didn't think senility would come on this fast! It's good to have extra sets of eyes out there.
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Old 04-24-2018, 02:22 PM   #15 (permalink)
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So I’m working on my deck lid extension again... I’ve got support brackets made to hold the coroplast up(it’s free so I can’t justify buying a different plastic), and now I just gotta make a cardboard template to trace onto the coroplast... I’m gonna shoot for about 4” of extension, hoping it’s enough lol... too long would require more support and might look weird...
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Old 04-24-2018, 10:32 PM   #16 (permalink)
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Subscribed. I might copy this if it turns out well for you and you get positive results from its implementation. Tryin' to follow in the footsteps of the great.
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Old 04-25-2018, 08:50 PM   #17 (permalink)
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I wouldn’t call me “great” but I’m tying to continually make progress of some kind on my build... this is actually about the most in depth I’ve ever actually built a car
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Old 04-26-2018, 09:26 PM   #18 (permalink)
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Apparently I’m not the first one to try this... just found this... if I were a member I’d be able to access his pictures but it’s cool to read about nonetheless

Ion XFE stage 1 - SaturnFans.com Forums
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Old 05-01-2018, 10:13 PM   #19 (permalink)
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Well I have a prototype trunklid extension (spoiler) on my car for testing... I took some pics while I mocked it up on my parts car... I made it 4Ē out from the trunklid, matching its curve... initially I canít tell much difference but ill do some more testing before I either scrap it or finish (paint match) it
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Old 05-01-2018, 10:20 PM   #20 (permalink)
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Quote:
Originally Posted by 19bonestock88 View Post
Well I have a prototype trunklid extension (spoiler) on my car for testing... I took some pics while I mocked it up on my parts car... I made it 4Ē out from the trunklid, matching its curve... initially I canít tell much difference but ill do some more testing before I either scrap it or finish (paint match) it
Do you think 4" is long enough? It seems the point of this mod is for the airflow following the template to reattach....does the extension touch where the air flow would be following the template?

Kind of like this:


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