2" drop and alignment?

[spyderg0d]

Ive just installed proper drop coilovers. Ive now set the height i want btwn the front and the back, which considerably drops the car.

As i align the rear wheels, the rtab alignment bracket cannot adjust far enough outward to gain the correct toe. Is this normal for such a lowered e36 or are my rear trailing arms bent?

[spyderg0d]

Now that I think about it, its possible I have gotten misleading numbers for my style 37 wheels size and offset. I believe I have the m5 versions as the m badge is present in its place. Does anyone have definitive specs for these wheels as bmwstylewheels seems to of changed its mind on the details?

[bluptgm3]

The wheels should not play into alignment numbers. Camber is camber, Toe is Toe regardless of wheel type or size.

[LockDots]

The wheels should not play into alignment numbers. Camber is camber, Toe is Toe regardless of wheel type or size.

This.

Either your arms are bent or you need to extend the holes on the RTAB pockets, although a 2" drop although a bit drastic I don't think shouldn't require that much of a change in toe.

[spyderg0d]

I assumed that the alignment machine took into consideration track width to get appropriate toe? If the alignment machine does not need specific track width difference dimensions, how can it calculate toe?

[samy01]

...because the toe angle doesn't get affected by track width ?

two wood boards on the ground laying 1 foot apart at an 45° angle to each other are still at the same angle to each other when they're 1 mile apart

[Chespirito]

This^

[spyderg0d]

I dont think my question is being understood or is being oversimplified. If an alignment machine is affixed to every wheel. And the angle of which machine is to each other is the measurement on which it decides toe, then changing the track width difference btw front and back would ultimatly change the angle btwn the two and leave with a false reading would it not? How can a machine triangulate toe angle if the other measurments arent accurate?

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Do the alignment wheel fixtures float in and out?

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Ohhhhh.. I see the culprit. I am useing the track widths of the car to find the centerline bearing.. I assumed this was how alihnment machines calculated the toe angles as well.

[samy01]

well then you have to aks the question more specific like you just did in the first place.

i'd ask the alignment guy who does it for you, he must know how his machine works. or look up the manual for that machine, there are many different machines.

the alignment machines i worked on have a little window about 3 or 4 inches wide in which it can receive the laserbeam from the other machine so i don't think it would be a problem.

i don't think it is a problem since you can have bigger track width in the back than the front and the machine usually doesn't care.

my english isn't that good so i don't know what float means.

[spyderg0d]

Yea, sorry about that. I made a horrible assumption. Thanks.

[spyderg0d]

So the machine would have the cabability to read its depth from its hubs to measure wheelbase and track width. Then find toe while most likely computing the changes as the wheel is aligned. .. I think i understand now. Thanks for your info, i think it helped me piece together what it does exactly and i can rule out the machine as possibly having faulty readings.9