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  1. rtj

    Internal Body Aerodynamics

    10 % of the total seems like a lot, but if the scoop had an issue in one region (or regions) and messed up the rear wing aero, I guess that would make sense. The dimples seem like a lot of work, so they must have their reasons. With those wheel fans, that thing is sort of like a vacuum...
  2. rtj

    Internal Body Aerodynamics

    ...that doesn’t allow control valves for aero devices. So the driver activates a fluid switch by blocking a pipe with his hand. They stall the wing in such a way that even though lift drops, drag drops significantly. For use on straights, allows running high downforce wing...
  3. BBShark

    Amazing XKE RestoMod-Sanding and more Sanding 7/15/26

    ...former. In any case, it had completely rusted away, both sides. Recreating the curvature would be the tricky part as it has to match the rear edge of the bonnet wing. That's why I'm tackling this job now, is because I need something to line the bonnet up to. Right side damage: GO TO NEXT...
  4. rtj

    Internal Body Aerodynamics

    mfain, I think Phantomjock posted an active control system for wings. It was a year or two ago. Sounds like the tunnels should work then. Anxious to hear/see video of your car.
  5. SuperBuickGuy

    Plastic Fantastic 2

    ...a new-to-me is on its way and my dumb question of the day.... why are splitters so expensive? the hardware is cheap from Aircraft Spruce and making a carbon-covered honeycomb is easy... but then again.... I quite frankly don't have a clue.... and by so expensive - they cost the same as a...
  6. mfain

    Internal Body Aerodynamics

    ...early in the video are what I have on my '56 - between the outside of the frame rail and the inside of the side body skirt. I have the rear wing adjusters on a bellcrank assembly with the future possibility of adding an aircraft trim motor to control the wing AOA. It would take something...
  7. vette427sbc

    Internal Body Aerodynamics

    Slightly off topic, but am I the only one that thinks the flares are "poorly executed" (putting it nicely) on that car?? The wing is cool, I imagine it has to be at least that tall to give any notable benefit with how dirty the air is on the rear deck of these cars. The diffuser probably cleans...
  8. vette427sbc

    Internal Body Aerodynamics

    ...that move air out from under the car to the side just after the front wheels are very pronounced. Probably around 1.5” tall. The rear wing is active, and also an air brake I assume, judging by the massive hydraulic rams. The hydraulic feed lines are -4AN, compared to a typical Porsche 911...
  9. mfain

    Internal Body Aerodynamics

    Hey Jim, This is a stock Gen V ACR-E, identical to mine except for the stripes. It belonged to William Hubble, owner of Hubble Racing in South Florida. He died in Feb at an early age of Parkinson's. He had 2 IMSA GTP Corvettes and a couple of Lambo race cars. It does have a full belly pan...
  10. rtj

    Internal Body Aerodynamics

    That large vertical looking “wing” behind the front wheels is probably responsible for the side skirt area (rocker area) being so different from the c6 or c7. Jim is right, vortex dominated flow down the sides. Well it speaks volumes about how much trust your customers have in your work...
  11. rtj

    Internal Body Aerodynamics

    “ Those wheel discs suck air from under the car, allowing the wing to use two degrees less rake to reduce drag and improve acceleration. These forces are balanced at the front by a splitter, new undertray, carbon floor, underbody aero curtains and a pair of canards on each side of the bumper”...
  12. rtj

    Internal Body Aerodynamics

    ...isn’t divulging much, my guess is they put some work in there. Kyle wants to add material instead of the dimples, but that will impact the wing. He’s also critical of the front splitter, but they move a lot of air internally so that might result in a non conventional design. Notice the...
  13. rtj

    Misc Vintage Racing Clips

    LOL :). I only linked a couple as I knew it would be controversial! Interesting points that you made. I cut cable 8 years ago, so Netflix and YouTube are my “TV.” When there is something corvette related (or car related) that is a bit interesting, I drop it here. This is the last forum...
  14. rtj

    Internal Body Aerodynamics

    ...a centrifugal compressor disk if you want to see why. That does cool the brakes and does lower the pressure under the car, which explains why the wing needs less angle. https://www.youtube.com/watch?v=dpje3x4s9U0 This is obviously a well designed part, he just doesn’t have the facts...
  15. SuperBuickGuy

    Plastic Fantastic 2

    ...may swap my lighter springs back into the front this is C5 - I'm not sure I'd survive a stiffer rear spring in my car. On second thought, with a wing, this would be a smart change.... Springs Base...440/577 Z51....525/634 Z06....525/714 on Lateral-g All of the parts will swap. The frame...
  16. BBShark

    Internal Body Aerodynamics

    I'm with you on that. They do look added on but I suppose that is a byproduct of how big they are. However, it looks like a very nice build.
  17. vette427sbc

    Internal Body Aerodynamics

    Your CFD makes total sense! Thank you for the explanation. Again, this makes much more sense :thumbs: These are pretty wild cars... I typically like “raw” cars; lots of hp and a well balanced chassis. Not much more. I think this up there with my favorites though! And I definitely get an...
  18. mfain

    Internal Body Aerodynamics

    Good video. I have been watching this car in development for years - from early Optima to present. On his hood vents for the radiator, notice the "lips" in front of the discharge holes - provides a low pressure area to help extract the air more efficiently. I am doing something very similar...
  19. phantomjock

    Internal Body Aerodynamics

    ...guess of what the streams might look like: Yellow are teh streams - sorry takes too long to make curves of vortex! Red arrows downforce; wing, splitter, "rocker/skirts", and blue the very slippery angle of the front wind screen. Hope this makes sense - can't say its CFD - just one...
  20. redvetracr

    Misc Vintage Racing Clips

    ...not be racing with all the production/frame based Corvettes, Camaros, Mustangs, etc. it will be racing with current era Trans-Am cars in the wings and slicks class where he will be running so far behind the pack it will be sad....rebody it as a 69 OK, but as he is doing it is a waste of...
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