Guidance needed on lowering suspension
Guidance needed on lowering suspension
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Discussion

smithyl23

Original Poster:

357 posts

243 months

Monday 16th November 2009
quotequote all
My mate works for BMW and at the weekend I had the use of their lifts so thought I’d put my car up and drop the front suspension the 5mm I’d been wanted to for a while.

Anyhow wondered if someone could shed some light on this as it’s got me a bit confused.

I dropped it down by marking the springs and turning them both equally, however the offside is different to the near side, in terms of how much lower they could go. (If that makes sense)

There are a lot more threads showing at the top of the strut on the near side than on the off side, yet the ride height is the same both sides.

Guidance would be appreciated.

Thanks

Smithy

OatSy

1,550 posts

245 months

Monday 16th November 2009
quotequote all
measurement should be from the underside of the chassis to the floor. ensure the tyre pressures are the same and tso is the tyre wear.
I raised my car up due to the unpredictable speed bump heights here in Norway! I would only lower if I was using it on a track.

GreenV8S

31,017 posts

313 months

Monday 16th November 2009
quotequote all
Did they start off equal before you moved anything? And did the chassis sit level? Ignore the body, especially wheel/body gaps, as the body is not going to be symmetrical.

smithyl23

Original Poster:

357 posts

243 months

Monday 16th November 2009
quotequote all
GreenV8S said:
Did they start off equal before you moved anything? And did the chassis sit level? Ignore the body, especially wheel/body gaps, as the body is not going to be symmetrical.
wasn't equal to start with, jus wondering why that was the case.

T450t

414 posts

220 months

Tuesday 17th November 2009
quotequote all
smithyl23 said:
GreenV8S said:
Did they start off equal before you moved anything? And did the chassis sit level? Ignore the body, especially wheel/body gaps, as the body is not going to be symmetrical.
wasn't equal to start with, jus wondering why that was the case.
Its all a bit of a compromise as like Green V8 says the body's are wonky to the chassis but if you don't compromise and only take notice of the chassis to floor dimensions you may get wheel arch rub on your rear near side under heavy right hand cornering as that side will be lower (tyre to wheel arch) and the body sits over the tyres more that side.