Turbo air dam fitting dimension help please.

[Somchai]

I've looked at dozens of pics and 'eyed' the fitting but could anyone with a turbo airdam (BMW original or close copy) give me the distance from the base of the grill to the top edge of the dam on a square rear light / black plastic front grill car ? I believe it is about 3.25 inches. Getting this correct will ensure that my front arches are at the correct height too. Thanks in advance (this pic is just for example and is actually of a RRL car )

[AndyS]

I don't have the measurement, but I do have a picture. I don't know that that would help, but trying to be.

[Somchai]

Thanks. Every little bit helps. And it's a cool pic too. I've used pics like this to 'eye' my airdam in on my car. My front end has had a few repairs in it's time so the panel shape can't be relied on. So by having the exact dimension I will be able to fit the panel to the airdam. Rather than the other way round ( if that makes sense )

Cheers

[AndyS]

Looking at the 2 pictures makes me think you are awfully close with the spot!

[JackF]

check out www.sportscarrestoration.com There are a lot of pics of my turbo re-build with dimensions, although I do not recall if that particular one is noted. I do think the arches are noted, so perhaps you can work backwards to the air dam.