Holden Commodore, Aerodynamics. AND NOW: WATER INJECTION...

[Danny Barrett]

I have to admit that I expected a few "shots." Mind you - it was only an
experiment - the stuff definitely isn't there now!!! I didn't put it where
the exhaust is (i didn't want it to melt and catch fire). Wouldn't the
Polyprop sheet melt/catch on fire from the heat of the exhaust? Perhaps not
(???) but I would prefer to be on the safe side of things (even if I did put
duct tape under there)... So you weren't being "funny" with the 1/8"?!?!?!
Somehow I don't think my car could get that low... But I'm told that about
2" is quite normal for this type of vehicle... As for the gutter, I think it
is screwed on with my car :) but I would have to check to make sure. Either
way, it isn't welded on, as it is chromed (unlike the rest of the car). So
at worst, it is onlt riveted on (I know for a fact that the gutter is EITHER
screwed on, OR riveted on, but from memory, I think it is screwed on).
Thanks for the tips. I'll see what happens.

Danny Barrett.


>>	I hope you didn't bite while you were writing this... Your tongue was
>	obviously firmly planted in your cheek. 
>Well yes, and no...
>
>5mm sheet of Polypropalyne is cheap and will flatten off the underside
>of the car nicely.
>Lowering a car to 1/8 inch off the ground is what I have been told is
>the point at which formula1 ground effect was used in the 70's.
>Deseaming has been widely regarded as a good way of cleaning a cars
>aerodynamic profile. Some people cut off an entire seam and wonder why
>their car 'pops' open ( don't laugh this was a common mistake with Mini
>owners ) you should grind, weld, grind and weld along the seam/gutter no
>more than 4 inches at a time.... best that you do not start at one end
>and move along, cut 4 inches,weld, leave a gap of 4 inches then cut
>futher up  ____----____----____----____----    then do the bits that you
>leave.
>On the works Triumph TR8 they deseamed and welded a roll cage in at the
>same time ( actually splitting the skin of the internal mounts and
>pillars welding the cage in then welding through the cat seam on the
>outside... that car was stiff and safe.
>
>>	Thanks for the ideas anyway (however sarcastic some of
>	them may be :) 
>
>Sarcastic??? oh you mean the skip!  That may have been ( you knew this
>because the skip idea would  damage the radiator )...  But surely you
>will allow a man to joke?  No oh well then.
>But you cannot seriously mention Duct tape and not expect a shot across
>the bows, can you?
>
>
>Rob Humphris
>>
>
>