Boxster 986 Aerodynamics @180km/hr

[truegearhead]

I would also love to see the top down results since I have with the top down on the track (most of us do).

Originally Posted by Nine8Six

hmmm, well spotted





I'm also dying to see this. Hard job tho as the model needs to be a water-tight solid body. But I'll try for sure.



Paul - can't do that. Those caps create such a violent vortex the team at Porsche studio will need to recall all those GT3. See it on the bright side though; so violent that the brake dust is sucked off the wheel (self-cleaning wheel)

Re wing: does not create any downforce or let's say nothing like the stock slab (tombstone?) that Porsche designed. The CFD I ran was based on my actual set-up (the wing + slab up). The Ricer in me said that the more wings you have the better. Results were so 'lifty' that I'm sure I would have killed myself if I'd ever ran this car on the circuit here (thank god I never did). City car only and I can't drive faster than 80km/h anywhere without murdering 1.4billion other drivers in front of me anyway :/

Those eBay sellers should really warn idiots (like myself) about the risks LOL

[PaulE]

Originally Posted by truegearhead

I would also love to see the top down results since I have with the top down on the track (most of us do).

Is that HDPE or some other kind of track event where you can run with the top down? I'm just curious because my region of PCA is NNJR, and I think their rules for HDPE require convertibles to run top up unless they have a full roll cage.

[JayG]

Originally Posted by PaulE

Is that HDPE or some other kind of track event where you can run with the top down? I'm just curious because my region of PCA is NNJR, and I think their rules for HDPE require convertibles to run top up unless they have a full roll cage.

Same in Zone 8 out in in the southwest
Top up is required, or if you have no top, arm restraints
Roll cage is not required for a Boxster unless you have a lot of performance points

[Nine8Six]

Topless as requested Jay! Just took me 4hrs just to sew and stitch those cabin surfaces LOL. You've done so much good e.g. leaving multiple kind msg on RL on my behalf, that I think I owe you more than a few visuals bud

RE Air Flow on the Topless boxster; to me it appears that the spoiler becomes redundant as there is absolutely no friction for the air to drag onto above your head. I'm not a professional but it appears to me that you are going to go so much faster at the track with the top down LOL You'll certainly have cheaper gas bills that's for sure

Velocity only - same speed (180km). No lift & drag figures in fear to get sued by Porsche if I ever try to go that far! Not my car after all and the CAD model may differ from specs (i.e it would be pretty unfair to them).