https://www.vorshlag.com/forums/ en Tue, 25 Aug 2026 16:42:40 GMT vBulletin 60 images/misc/rss.png https://www.vorshlag.com/forums/ https://www.vorshlag.com/forums/forum/vorshlag-motorsports-discussions/car-setup-data-analysis/59396-e90-330i-dd-dst-autocross-setup Tue, 25 Aug 2026 13:57:48 GMT
My daughter takes drivers ed next month and gets her permit in March. The plan is for this to be her first car! 6 SPEED!

Anyway, here' how the car sits currently!

Current mods
- Eibach pro springs
- newish sachs shocks (not bad actually)
- LSD
- new motor & transmission mounts
- 300 tw tires (Conti Extremes) 245/40R18 (still have lots of life)
- Konig Ampliform 18x8.5 wheels (need to check offset) (these will be autocross wheels)
- wheel spacers front and rear (not sure what mm)
- Found some cheap 325 16" wheels for her to drive around on...

Before I get into my questions, I want to state that I'm not interested in turning this into a nationally competitive DST autocross machine. It needs to be a comfy daily driver for my daughter that isn't going to bite her as a new driver. My plan is to stay with the Eibach springs and maybe do something like a Koni Yellow shocks. There are a few 86s that run in DST locally (North Carolina) with me and I'd love to be competitive with them. They aren't nationally competitive cars/drivers (at least not with Triad Sports Car Club).

The car has a TON of grip and generally likes to turn, but obviously without negative camber and a performance alignment, there so much left on the table.

Here's sort of my vision for the car.

- Vorshlag camber plates (next mod) & alignment (to mark the plates for dd/autocross)
- 200 treadwear tires
- ECS tuning valved muffler kit (I can't hear the car when on course)
- intake
- tune (maybe)
- koni yellows
- adjustable rear swaybar
- maybe front swaybar, but got to get ride of understeer first
- M3 front control arms

Camber Plates & Adjustable rear swaybar
Current feel of the car. I was pretty surprised at how well the car handled with springs & decent rubber (not autocross 200 tw rubber). The car does really well at the limit and is pretty solid in slaloms and the rear sticks really well. It suffers from understeer - not Mustang level understeer, but you can really feel it limiting the speed because it just starts to push. 3* of negative camber will help a ton! I'm also thinking about an adjustable rear sway bar.

Once I tackle these 2 mods, I will probably look at tires next since I've got the Konigs and they probably won't live on the car until my daughter proves that she doesn't hit curbs. haha

This is where my biggest question lies.

Can I run 255/40R18's with STOCK style springs without much fuss? I already have some spacers and I need to pull a wheel off to see what offset they are, but is there a recipe for 255/40R18s on a 18x8.5 wheel? If so, that's probably my plan, if not, I will probably just stay with 245s to keep things simple.

I haven't autocrossed in about 5 years and I think if I get back in practice, I can get within about 1-2 seconds of the fastest car/driver as is, so I am probably looking for around 1 second of mods if that makes sense. I lost by about .600 Sunday to a BRZ. A nationally competitive BRZ is probably 3-4 seconds ahead of me. For reference, I was about 6 seconds off FTD last weekend and about 3.8 seconds last month.

I am looking for some guidance on mild mods that will get me into a respectable position to battle for DST wins in NC an maybe even do one of the national events in Charlotte or Bristol - and be respectable.

Also do you have any suggestion on what kind of alignment I should run for daily driving and autocross?

Thanks!
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