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Rear spoiler cutouts on some Protoform TC spoilers

Rear spoiler cutouts on some Protoform TC spoilers

Old 01-27-2010, 04:27 AM
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Default Rear spoiler cutouts on some Protoform TC spoilers

What do the openings on some Protoform TC spoilers/wings acheive? I'm looking for maximum rear downforce and have noticed on some spoilers there are molded ovals with the words cut out on them. Is maximum downforce acheived when these openings are cut out or left closed? So far I've noticed them on DNA2 and Mazdaspeed 6 bodies.
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Old 01-27-2010, 05:13 AM
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I think Dale Epp (protoform designer) has posted previously that they increase the efficiency of the wing, less drag for similar downforce - but they are a pain to cut out consistently, and more to the point I don't think you will see anyone cutting them out now, and nobody is going slower by not doing it!
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Old 01-27-2010, 05:28 AM
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Cool thanks. I'll leave them closed then cos they look like they'd be a pain to cut out.
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