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      09-08-2021, 04:35 PM   #1
Jamesjedi
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I bought Vorshlag camber plates, B14 Bilstein, 18 x 9 wheels with 255 rubber. I also have the stock 19's.

What camber do I want? 2 1/4?

Streetable is important
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      09-08-2021, 07:27 PM   #2
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Quote:
Originally Posted by Jamesjedi View Post
I bought Vorshlag camber plates, B14 Bilstein, 18 x 9 wheels with 255 rubber. I also have the stock 19's.

What camber do I want? 2 1/4?

Streetable is important
My street/track camber, with street usage taking precedence, by far, has been this:

Front: -2.6° camber
Rear: -2.2° camber

I have no complaints, neither about responsiveness to steering input nor about tire wear.

That degree of negative camber makes the car very responsive to steering input.
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TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro;
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      09-13-2021, 06:44 AM   #3
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Thanks for the reply

Vorshlag recommended 2.25 in the front

I'm not sure that 2.25 is enough for 255 tires?
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      09-14-2021, 01:00 PM   #4
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Quote:
Originally Posted by Jamesjedi View Post
Thanks for the reply

Vorshlag recommended 2.25 in the front

I'm not sure that 2.25 is enough for 255 tires?
As best I understand it (and I'm no expert in these matters), the issue in the front is that how wide a tire will fit is dependent upon a number of factors.

I've relied upon qualified performance shops to help me with this. Because I went to TC Kline Racing to have one of their coilover kits installed, because they know BMWs intimately, and because they knew I'd take my car to the track, when they told me a 255 performance tire of the Extreme Performance Summer or Hoosier R7 class would fit, that's the size I chose.

Helping a tire of that type and size to fit in front after the car was lowered 1¼" was that TCK's coilovers leave slightly more room in the wheel well for the tire than some other coilovers, the -2.6° camber, and a minor and unnoticeable pull of the front fenders.

All this is to say that your circumstance is specific to the parts you've chosen for your car, and that it may well be that -2.25° is all that's available to you and Vorshlag knows this. Did you ask them why that's the amount of negative front camber they recommended?

As for whether it's "enough", I don't know. My opinion is that it's certainly in the ballpark of where you want to be if you're going to run your car hard at the track. I don't think the tire's width has much to do with the degree of negative front camber that's ideal for your use case. You'd likely want the same value for a 235 tire as for a 255 tire.
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      09-14-2021, 01:23 PM   #5
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I've got Vorshlag plates and keep the camber around 2.4 deg for street/track on 255/40/17's.
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      09-22-2021, 10:17 AM   #6
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Thanks for the replies!

No alignment yet.

I plan to work on the car tomorrow. Hopefully get the ride height sorted. Do any of you have a recommendation on a measured ride height? I believe the measurement is from the centre of the hub to the fender. There must be an ideal height that is ideal for suspension geometry.
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      09-23-2021, 07:24 PM   #7
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Quote:
Originally Posted by Jamesjedi View Post
There must be an ideal height that is ideal for suspension geometry.
In the words of Dr. Dave Coleman of Sport Compact Car Magazine (now global head of Mazda Speed): "Lower your car. Just don't lower it too much."

There's a balance to strike between a lower center of gravity and a higher roll moment between the center of gravity of thr car and the roll center where the lines extended from the control arms intersect. How low you are comfortable going should be proportional to how much stiffer you've made your springs and roll bars, and how much travel you've got. Bottoming out is bad, not making use of your full travel is also bad. Setting the ride height somewhere in between so the car does neither is ideal.
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      09-28-2021, 04:26 PM   #8
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Quote:
Originally Posted by Jamesjedi View Post
I bought Vorshlag camber plates, B14 Bilstein, 18 x 9 wheels with 255 rubber. I also have the stock 19's.

What camber do I want? 2 1/4?

Streetable is important
This makes me hot...go on...tell us more.
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      09-28-2021, 04:27 PM   #9
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Quote:
Originally Posted by Jamesjedi View Post
Thanks for the reply

Vorshlag recommended 2.25 in the front

I'm not sure that 2.25 is enough for 255 tires?
If you cut out the toe, you could likely do 3 in the front - you'll need to rotate the tires no matter what though.
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      09-29-2021, 06:09 PM   #10
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Not sure how readable it is.
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      09-29-2021, 08:13 PM   #11
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Front end is a little more "sensitive", not sure how to describe it. Possibly twitchy?

Still getting used to it.
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      09-29-2021, 08:44 PM   #12
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Quote:
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Front end is a little more "sensitive", not sure how to describe it. Possibly twitchy?

Still getting used to it.
Yeah, that’s usually what happens
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      10-01-2021, 09:35 AM   #13
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I am thinking I can possibly reduce the camber with the front fenders mildly rolled. This may help reduce some of the twitchyness and return it to a more neutral feel.
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      10-01-2021, 09:36 AM   #14
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Glad to hear that it is the norm.
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      10-03-2021, 10:49 PM   #15
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Glad to hear that it is the norm.
Awesome, very good look
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      10-03-2021, 10:58 PM   #16
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Also, reading through this thread, I guess if it’s a DD primarily, a 2.4-2.6 would work better and you could add back in toe for stability- but this question is as old as the macpherson suspension has been a thing. But as far as I heard, you can’t have too much - so the hardcore guys are over 3 degrees usually. Guess it’s just how much of a tradeoff do you want?
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      10-03-2021, 11:07 PM   #17
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https://f87.bimmerpost.com/forums/sh....php?t=1628853
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      10-04-2021, 09:19 AM   #18
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I will give it some time, most likely change the camber up front at some point. May need to roll front fenders.
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