E30 Aerodynamics

[squidmaster]

the 2.3 was the rally series, but couldn't outpace the quattro at all, so they changed direction and released the 2.5 with dtm specifically in mind. at least that's what I've read from those "history of the w201" articles.

Honestly though, probably 95% of all this competition stuff is hearsay. Who knows what goes on behind the closed doors-- what the executives truly wanted to produce and why

[TheDirtyS54Thirty]

I got a couple things brewing, more pics to follow once I finish the rear set up.

[2mAn]

I got a couple things brewing, more pics to follow once I finish the rear set up.

diffuser?

[TheDirtyS54Thirty]

diffuser?

no nothing that crazy lol. I have to bolt in the chassis mounts for the wing and cut up trunk for the uprights to pass through.

[2mAn]

Your cars the one that Matt Farah drove right?

Have you taken it to any track days yet?

[TheDirtyS54Thirty]

Your cars the one that Matt Farah drove right?

Have you taken it to any track days yet?

yup this is the one and yes Ive tracked it a bunch of times.

[2mAn]

E30 Aerodynamics

That's funny, I have a swapped E30 and a W204 also. Both your cars are crazier versions of my own

Edit: back on track, are you tying the rear wing to the suspension or the trunk floor?

[TheDirtyS54Thirty]

That's funny, I have a swapped E30 and a W204 also. Both your cars are crazier versions of my own

Edit: back on track, are you tying the rear wing to the suspension or the trunk floor?

but I just have the e30, I did have an e90 m3 that I just sold a couple weeks ago though. As for the wing its being bolted into the frame rails that pass through the trunk floor.

pictured are the chassis mounts

[2mAn]

but I just have the e30, I did have an e90 m3 that I just sold a couple weeks ago though. As for the wing its being bolted into the frame rails that pass through the trunk floor.

Nice that should be pretty damn functional.

I thought you had a C63, never mind. Too many people on those videos

[TheDirtyS54Thirty]

installed the 61" APR GT-250 wing finally with custom end plates.

[e30davie]

If nothing else it looks very serious. Had a chance to test it out yet?

[TheDirtyS54Thirty]

If nothing else it looks very serious. Had a chance to test it out yet?

Although not the greatest track to be testing the aero to its full potential, Ill be tracking this Saturday.

[RoccoB517]

So an interesting follow up from me here. I took my car to Road Atlanta with the new drivetrain and managed to exceed my previous top speed by quite a lot on the long back straight. This promptly broke the end off of my wing and tore the 1" fender washers clean through my 16 gauge aluminum flat bottom. Back to the drawing board on these items, but holy crap the force must have been massive to do those things.

[vpilarrt]

When you weld metal the heat effected zone (which can be quite large on aluminum since it conducts heat so well) returns to as-forged strength. Assuming you used 2024 it would take 495 lbs of drag on the wing to tear out a 1" diameter x .0625" thick plug in the bottom of the support. I eyeballed your setup to have a 5:1 height (of wing above the bottom of the support) vs width (of the bottom of the support) which give a 500% mechanical advantage to the load due to drag.

[Sh3rpak!ng]

So an interesting follow up from me here. I took my car to Road Atlanta with the new drivetrain and managed to exceed my previous top speed by quite a lot on the long back straight. This promptly broke the end off of my wing and tore the 1" fender washers clean through my 16 gauge aluminum flat bottom. Back to the drawing board on these items, but holy crap the force must have been massive to do those things.

Pictures?

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