Modifying the front grille for increased air flow - pros & cons

[tigger73]

why not try both? I would imagine a wind tunnel is harder to test. unless you have one, or access to one?

I was joking about the rolling road wind tunnel test. There are very few full-sized rolling road wind tunnels in existence and I don't think there even is one in Australia. It's what the F1 guys use when they want to sort things on their car.... I think my Tig is a way away from needing wind tunnel testing.

So I think I'll just do the mod and then monitor it with my Autopolar FIS+

[zei20t]

I thought you might have worked at a University or something, and had access to one

[tigger73]

I thought you might have worked at a University or something, and had access to one

Unis may have a scale version with a fixed road but full size rolling road is massively expensive. For one you need to have huge fans to push a large volume of air at constant speed over the entire car surface. And then match air velocity with road speed. And keep all temperatures and pressures stable.

So it's a large, complex and very expensive machine.

I was hoping someone may have done something similar before and be able to tell me if it was going to work or if I was going to stuff things up.... Without using a wind tunnel of course.


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[zei20t]

be easier to just get a wind tunnel

[tigger73]

Well after all that I pulled off the front bumper/grille on the weekend to install some new mesh and found that behind the blocked off section of grille there's a big chunk of polystyrene.




I'm not sure what to do about it so I left it. It's probably there for impact resistance I imagine.

Here's the full grille treatment:

[zei20t]

even if it does nothing, it looks good