AntonUK
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posted on 31/7/17 at 06:43 AM |
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Flat Floor / Diffuser
Hi All,
I have a week of to do anything but work soon. One thing on my list to is to make a rear flat floor/diffuser for the back section of the Ginetta.
Simple question though, what thickness aluminium should I be using. Currently thinking 1.5mm?
Thoughts?
Build Photos Here
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Phil_1471
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posted on 31/7/17 at 07:00 AM |
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I got 2mm to do mine, and soon realised it was too thick and heavy will use 1.5mm for the next attempt.
Phil
You can live in a car but can't rally a house
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adithorp
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posted on 31/7/17 at 08:48 AM |
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Yes, I'd go with 1.5mm. Much easier to work with than anything thicker and stiff enough to hold it's shape after.
I'd do a bit of reading on the subject first. One of the questions I get asked most about my car is "Does the diffuser work?".
Answer is, I don't really know... and don't think you really can without putting it in a wind tunnel. That said you might as well give it
the best chance of working.
Primarily I needed something to stiffen the rear valence (it also made viewing the rear a bit more difficult for the SVA tester ) so a diffuser was
as good as anything else. The angles, size and position are as good as I could practically get them to what the theory suggested (it was a long time
ago so before you ask don't remember the exact details). As a result it should work at least to some extent and I think it does given the feel,
spray/dirt patterns on the rear panel, comments from people with more knowledge than me, etc ...and if it doesn't it's a good stiffener
for the vallence.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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coozer
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posted on 31/7/17 at 03:12 PM |
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Heres mine, 1.5, works a treat..
All of them here: http://imgur.com/a/lQSJr
1972 V8 Jago
1980 Z750
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loggyboy
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posted on 31/7/17 at 07:48 PM |
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As thin a possible. Pointless adding weight for such a minimal gain in aero. Multiple vains should keep it firm enough. And arguably, and an
uneducated suspicion would be having some flex under load may enhance its effect.
Mistral Motorsport
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