Some more wind tunnel data. https://racelouvers.com/content/Race-Louvers-GT350-GT4-Wind-Tunnel-Data.pdf
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Let's Talk Aero
- Thread starterantman450
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I know with some of the competitor vents, the side GT4 style vents can cause issues with rain and the stock open airbox. Is this still the case with the Race Louver vents?
Yes, since the cone filter is directly under the louver you will need a cover for the top of the airbox.
Fabman
Dances with racecars
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roger that..
JLT sells a water proof cover for the airfilter that allows still 99% air pass
Yes there are prefilters that are repel water while allowing air to pass, they are popular in the offroad community, and they work well. However in the GT350s case, the top seal that seals the airbox to the hood is restrictive to airflow out of the louvers so its best to remove the seal and put a simply top cover on, seen many use plexiglass, this keeps the 'cold air' part of the filter while cover it and allowing better functionality of the hood louvers.
Yes, that was definitely more my plan as the car is still 99% street car. Although I choose other vehicles to drive if I know it's going to rain, pop up storms still can happen from time to time so better safe than sorry.
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FWIW they are widely used in the karting community on both dirt and asphalt tracks.
Mad Hatter
Gotta go Faster
Who was that who kept saying.... nothing good ever happens in the rain... or something like that?? Lol.... I for one crunched my car good and proper in the rain, so I have a rain allergy now.
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Joe Aquilante
Fabman
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I like to start the season at race #5 specifically to miss the rain....although I have still had to deal with wet tracks and drissle, I have never had to run on slicks in pouring rain and its not something I have any interest in doing. Nor do I need to purchase rain tires/wheels to run in weather I don't like, just in case it happens. I know....sissy stuff. But remember I'm a stock car guy, and rain means we stay inside and drink in the trailer.
Mad Hatter
Gotta go Faster
I should have stayed in the cafe with the sissy Porsche drivers.... they were smarter then me...
And miss the opportunity to display your skill and daring?
Mad Hatter
Gotta go Faster
Crunch.....
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Not sure if this has already been discussed or if this info has been out for awhile but I just found this today....Verus Engineering has numerous aero bits for S550's.
Vortex Generators, underbody paneling, fender blockers...all aimed at reducing drag.
Verus adds all these up and calls it their "Ventus 1" package. By the looks of their graph plots, $1650 worth of aero bits loses maybe 50 lbf of drag at 140mph
That doesn't sound all that beneficial....why do I want it so much then?
Anyone have further info on these items?
Vortex Generators, underbody paneling, fender blockers...all aimed at reducing drag.
Verus adds all these up and calls it their "Ventus 1" package. By the looks of their graph plots, $1650 worth of aero bits loses maybe 50 lbf of drag at 140mph
That doesn't sound all that beneficial....why do I want it so much then?
Anyone have further info on these items?
I have their rear diffuser on my GT350 and it's so far proven to be a solid piece of kit. No actual testing, but I'll believe their claims. Not a deep downforce inducing design, but more of a drag reduction style design.
Correct. No real DF piece. Buy a drag reduction stuff. I have it too. Erik i might sell mine soon. Keep u posted.
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