E30 Aerodynamics

[NigelStu]

Political signs and all that have been hashed out on the ChumpCar forums. That material, even though they can be found just about anywhere, have a value associated with it. Value which I can't add to the car without getting laps. So I get to be extra creative. :D

Hadn't though about creating lift in the rear by making it flat - I'll have to look into that more. My intent would be to also remove the vertical sheet metal below the bumper, so that bottom side of trunk floor would be flat all the way out, nothing to catch any air under there.

[KIRIEIW]

Buy some plastic! Or snag a giant political ad board thing after an election? You know, one of those things that says "Obama for pres" or whatever... They're just gonna get thrown away anyway.

LOL, if i need plastic ill keep this in mind

[TobyB]

A pretty good explanation of gurney flaps.

I didn't know it actually could DECREASE drag on a thick chord wing...

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[e30_302]

I look forward to reading through this later, always looking for something to waste time on.

I doubt any of this does any good:

[RoccoB517]

I look forward to reading through this later, always looking for something to waste time on.

I doubt any of this does any good:

Aw, c'mon, I'm sure it helps with the hideous.

[e30_302]

Thanks.

[shadowracer]

I added a rear belly pan to my e30 and can say from personal experience it made a HUGE difference......as to the rest of the story behind that I'm pleading the "5th".

[RoccoB517]

Thanks.

I was only kidding, she looks like a track monster. I love it.

[e30_302]

I know you were kidding, that's why I said thanks :) It is a Lemons car afterall, can't look too well thought out.

[timninja]

DSCN4019 by ericandshovin, on Flickr

Found another one

That wing is righteous!

[Eric]

it made a HUGE difference......

Good or bad?

That wing is righteous!

Thanks dude.;D

[Simple_Smith]

1 YEAR BUMP

Just recently started working on my knockoff Racing Dynamics rear apron for my e30 and started to do some searching around for aero mods as far as rear diffusers, front splitters, side skirts, and under carriage mods.

I'd rather bump this thread because it has some good info in it than start a new thread.

So anyways, I just ordered my HIK Fabrication sever duty skidplate and was planning on making a plywood front splitter that will tie into the skidplate somehow as well as some cheap-ish side skirts (possibly taurus, but hopefully something a bit more squared.) Also possibly cutting the tire well to accommodate a diffuser that will tie into the rear valance.

Pic for suggestions. And to show current state of things..


keep in mind this is my drift/fun/auto-x/cruising/whatever car. Not dedicated to one specific school of thought, just for fun and some degree of function

[totheredline]

I need to go puke after scrolling through this thread.

[Simple_Smith]

I need to go puke after scrolling through this thread.

Thanks for your input.

[Jeff2886]

For those of you who are interested, I'm about 3/4 of the way through this book and I think it would make a great addition to any gearhead library.

It goes through a number of different items (spoilers, wings, diffusers, air dams, etc.) and explains it in pretty simple terms. It was hard to keep reading the book and not just run to the garage and start working on the E30.

Anyways - check it out. It's worth a look.

Competition Aerodynamics: A Practical Handbook
http://www.amazon.com/Competition-Ca.../dp/0857330071