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Track alignment specs?

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BMWZ4MC
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Track alignment specs?

Post by BMWZ4MC » Sun Oct 08, 2023 4:30 am

TomK wrote: Wed Sep 13, 2023 8:16 pm My 2 cents on a very subjective topic;
As said, as much camber on the front as you can get, if you're on a stock strut/B6 etc then it's easy to shim them to get near -3ve. Cost £1 or get adjustable solid top mounts is another option >£300
I've found rear toe to be a big input of how the car handles, if you are comfortable with some oversteer then going neutral rear at a minimum really helps turn in. With that toe I've found going over -2ve rear camber isn't good leading to snap oversteer some times. I've set it at about -1.7 or something.
Personally I'd get it done at a shop that uses strings, they'll at least then have some idea what they are doing. Kwik fit use Hunter kit, doesn't mean I would ever take my car there thanks.
Whilst I much prefer oversteer to understeer, at present, mine feels like it wants to roll beyond oversteer into a spin when I accelerate out of tighter bends. This has been a slow evolution of change in handling characteristics at the limit. I’ve not checked the geo or made any adjustments for a very long time, so I suspect that explains the change in behaviour.
I had mine corner weighted and the geo set up in the UK some years ago and I’ve always been happy with the handling until this year. Unfortunately, my documentation of the set up is somewhere in the UK.
Tom, I’d be very interested to see the geometry figures that you run on track before I have mine adjusted.
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Ed Doe
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Track alignment specs?

Post by Ed Doe » Sun Oct 08, 2023 2:47 pm

Is also be interested Tom! :lol: that last video of yours at Snett looked extremely sorted
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Argenta
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Track alignment specs?

Post by Argenta » Mon Oct 09, 2023 3:05 pm

Yeah I've had -2 deg rear (which is minimum with KW V3 until you get adjustable camber arms) which prob. helped me snap & crash, I'd use max -1.5deg.

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Track alignment specs?

Post by Mikey_Boy » Sat Nov 04, 2023 7:12 pm

I used suspension secrets to set up my Z4M with Intrax coilovers. They are good, but (controversial) I don’t think they’re the best - PM me for more details 8)

I have 2.8 degrees negative with 8 degrees castor, which I think is a bit too much, despite the dynamic camber this gives you on turn in. Touch of toe in - not much.

Rear is about 1.5 degrees negative, but I don’t have camber arms so it is what it is. Again, a touch of toe in at the rear.

Tom K’s advice is spot on - I like to minimise rear toe to help with turn in - with the right camber setting, it helps balance enormously. Have a hunt on here for Exdos thread on Z4M suspension set up - that taught me heaps and gave me direction on what I needed.

Works well on road and track I find, but as said above, it’s very subjective. What I do find is that the Intrax dampers need a lot of fiddling with to get the front to rear balance right on track, but once you get it right, it’s fantastic! :thumbsup:

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Beedub
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Track alignment specs?

Post by Beedub » Sun Nov 05, 2023 9:25 am

mine will be sent over to spires technologies in the new year, it needs a total re-setup as ive started to get back on track again after a few years hiatus from the BIG C. i will make sure i post up the settings . The dampers were set to KWs nurburg track settings which i feels works as a nice balance for the road.
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