E30 Aerodynamics

[2mAn]

bumping this back up because I am trying to keep this type of discussion going...

I am interested in the rear aero stuff around the spare tire well and rear bumper. I want to fab something like that for my track car.

Those are just the standard M3 plastic filler pieces. You'd have the come up with your own pieces and a way to mount them onto the valence.

regarding the pic above, is it possible to fill those voids on a regular E30 with ABS plastic to make it more of a flat bottom. Obviously something like this would need to be paired with rear wing and some type of front diffuser.

Up front, I want to create something that will connect the iS lip to a red46 skidplate, then behind that I want to put the transmission skidplate back on.

The idea is not to make the entire bottom flat, but to eliminate as many voids under the car where air can tuck in and create lift.

Also, I had a link to those vortex generators on the first page and they were only a few bucks a pop. I want to buy 5 of them to mount to the roof. I have been trying to get my hands on a M3 C-pillar cover, but it seems like a fruitless endeavor so Im going to try a different, more modern aero approach

[catboy]

Reading this with interest to see if there's any tweaks I could apply to my e36..

quick comment on the above - you might find you're actually creating drag with this diffuser, assuming the front edge is open?
Might be worth making some holes either side of the exhaust just above the diffuser to let any air out which is above the diffuser plane? Or you could extend it all the way through to the front splitter, but this is much more work and might cause problems with the exhaust system and diff oil temps..

[Eric]

Is aluminite available locally?


Sent from my iPhone using Tapatalk

[325est13psi]

thanks! nope bumper is staying off, too much weight. lol


:up: thanks!


Yep, I just need to put a heat shield around where it comes out so it looks cleaner.

edit: for pics.

dont let this thread die!
how much did you spend on that rear diffuser, alumilite is not cheap!
i made my front splitter out of it $100 later

[Fidhle007]

[Fidhle007]

[kingston]

Nice car!!

[Revzillia]

New car with aero

I just bought this car. It s a proven champion winner so the previous owner has it fiquered out I'm going to be talking to him about the aero and what changed with the car. Jc

[e30_302]

That looks nice, should really help cut the drag back there.

[ncrmtrsprtsE30]

Love the exhaust. Is the bumper ever going back on?

thanks! nope bumper is staying off, too much weight. lol

fucking cool^

:up: thanks!

Really like that exhaust look, how it comes straight out of the bodywork makes it look like it was meant that way, not just improvised.

Yep, I just need to put a heat shield around where it comes out so it looks cleaner.

edit: for pics.

[kingston]

I cut out my spare tire well and made a custom diffuser out of alumalite that goes from the diff to the back roll panel and from shock to shock, sealing up the whole bottom.


I need to get a better pic of it later... just snapped this one real quick

Saw that on your other thread and posted there :)

[Wh33lhop]

I cut out my spare tire well and made a custom diffuser out of alumalite that goes from the diff to the back roll panel and from shock to shock, sealing up the whole bottom.
[img]http://i.imgur.com/UxDwwqwl.jpg[img]

I need to get a better pic of it later... just snapped this one real quick

Love the exhaust. Is the bumper ever going back on?

[the imitator]

Really like that exhaust look, how it comes straight out of the bodywork makes it look like it was meant that way, not just improvised.

[MPLFoster]

fucking cool^

[ncrmtrsprtsE30]

I am interested in the rear aero stuff around the spare tire well and rear bumper. I want to fab something like that for my track car.

I cut out my spare tire well and made a custom diffuser out of alumalite that goes from the diff to the back roll panel and from shock to shock, sealing up the whole bottom.


I need to get a better pic of it later... just snapped this one real quick