aerodynamics

[boxer]

'special roof or even a residential building' Loving the translation there boatbuilder . But at least I know my plan to fill in the 'roof rack' is a 'gooden'.


Re the vents in the rear panel. Could you test it by jamming open the 'numberplate' flap?

[Fin]

I had the same problem with mine, I'm sure the spare wheel holder doesn't help its like a big wing.
I'm running 260bhp from a Scooby engine - and Aiden built me a gear box which apparently is good for 144mph
I've had her up to 120 so far - on a closed road obviously - it kind stops getting any faster after that - as I guess it's not slippy enough to go any faster

I thought of two solutions

1) fit a Thule roof rack spoiler above the cab (mines a pickup) this works well - might try a less abrupt angle soon



2) I'm going to see if I can mount my charge cooler rad inside the spare wheel holder and drop it down slightly at the front with a spacer and longer bolts so the air pushes down on to it rather than up from the bottom

[silverbullet]

Geared for 144mph

Pickup trucks are always better with a rigid tonneau over the dropsides it would seem. Mythbusters proved it after testing with tailgate up/down/removed/covered.

So it must be true

[Fin]

Aah nice.
Yeh might see if I can get some carbon loveliness
And maybe a huge GT wing

[faggie]

my old van had a different engine lid arrangement and at speeds of 100mph or more the engine cover used to lift , so to cure this i always added weight to the cover when driving at motorway speeds

[Fin]

I currently have to carry 50 liters of water when I'm at Castle coombe race track.
Just to keep the rear wheels in traction

[boxer]

Jeez! I'm just trying to keep the front wheels on the floor at 50mph! It's another world! Take you point about the wheel carrier underneath though.

[trentjim]

looks like someone was a high top fan in devising the experiment to make them look good by using the Dehler...
I'd bet a westie high top in particular would have more drag than the pop-top...

[clift_d]

Um, no actually - see AdrianC's post earlier in the thread

https://club8090.co.uk/forum/viewtopic.p ... 6#p7855366" onclick="window.open(this.href);return false;

The pop-top seems to perform slightly worse because the transitions aren't so good

[trentjim]

aah yes,
Missed that one, I do like it when evidence tramples on my preconcieved notions!!
James

[Ralf85]

Aerodynamics - when we drive bricks.

[Fin]

Yeh, when you wanna push one through the air at 80 +
It's nice to know you aren't gonna damage the china.

[trentjim]

Aerodynamics - when we drive bricks.

We could put a positive spin on and call it "High speed braking assistance"

[silverbullet]

Bricks or not, it still has to push the air out of the way. Not all these vans are driven around at 45 mph

[Fin]

Maybe we should make a great big nose cone like Concord