What to improve in VW Golf Mk4?

[jorgemiguel4]

Originally Posted by aerohead

Are you allowed to attach a cargo rack to the back of a vehicle? If so,perhaps it could be streamlined and at least you'd get 610mm additional length.You'd see a difference at the gas pump with that for highway driving.

I think I'm allowed to attach that but it's not an option for me. It would be a problem to find a place to park.

[jorgemiguel4]

Originally Posted by freebeard

aerohead's trolling you. I completely support that, it's not personal. Just that the answer has dependencies. Like local regulation. And what is exactly stealth.

Who defines stealth? As they say you can not see what you do not know.

Stance and plasma actuators* might do a lot. VW engineered to a general use case. Your example might be re-optimized for a more specific case.

Countershaded camouflage*?

Nothing worth doing is easy. Boxed cavity*?

This is of interest to me, but I'm just following developments. Those are VDB* and Blender 2.8*.

*Details on request.

Stealth for me are airdams, small deflectors, underbody panels. spoilers.

The local regulations here are pretty rigid , I can't lower the suspension for example.

[jorgemiguel4]

Originally Posted by oil pan 4

Mk4 like the 1.8L turbo motor?

Mine is a diesel, 1.9TDI 81kw

[oil pan 4]

Larger intake piping may help.
I drove a 2004 1.9l jetta for a little while that had some funky small squareish intake piping that looked like a restriction.

[freebeard]

Box cavity.

The variations are stepped or angled, and the trick is to not block the tail lights.

edit:
Would this (Rocket Bunny-style) pass regulation?

https://www.thesamba.com/vw/forum/po...uote&p=1911182
Maybe without the extra width but with rear fender skirts?

[teoman]

Originally Posted by freebeard

aerohead's trolling you. I completely support that, it's not personal. Just that the answer has dependencies. Like local regulation. And what is exactly stealth.

Who defines stealth? As they say you can not see what you do not know.

Stance and plasma actuators* might do a lot. VW engineered to a general use case. Your example might be re-optimized for a more specific case.

Countershaded camouflage*?

Nothing worth doing is easy. Boxed cavity*?

This is of interest to me, but I'm just following developments. Those are VDB* and Blender 2.8*.

*Details on request.

More on the plasma actuators please...

[teoman]

This does indeed look interesting:

https://youtu.be/DUzHF17UC2g

[teoman]

https://youtu.be/GZWiysLd6jUThis video smells more like BS.

But... if i know how to fabricate the actuator, the voltages and the app could be a pleasant weekend project for me.


How did we attach youtube videos. I have done it in the past but have forgotten mow

[freebeard]

Plasma Stream Technologies- 720P

00:16 however the fuel they consume and the
00:18 exhaust they expunge is a detriment to
00:21 the environment and can pose serious

I see what you mean. The first is raw data collection, the second shows the avenue out of super-secret aircrafts.

Attach vs embed: Copy and paste the URL and it displays as //youtube/ (you don't even have to wrap it in a Link tag, it's added atomagically), click on the video and Copy URL or copy URL At Present Time and it displays as //youtu.be/.

https://www.youtube.com/watch?v=GZWiysLd6jU

https://duckduckgo.com/?q=phys.org+plasma+actuator

The first result is Phys.org (https://phys.org/tags/plasma%20actuators/) but there are other research results (www.researchgate.net, iopscience.iop.org) on the first page.

edit: There is also this: A Magic To Improve Aerodynamics : TOYOTA PATENT

[cRiPpLe_rOoStEr]

Pre-heating the fuel (not to the point of vaporising it) might be interesting. It's been widely used in those vegetable oil conversion kits, because they're harder to vaporise while injected at ambient temperatures. Better vaporising may lead to a more complete combustion. Other approach that might be useful is water injection, eventually also using the residual water taken out of the interior by the air conditioner.