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Thanks Richard..(more) (archive)

[ Follow Ups ] [ 7-series (E32) Message Board ] [ Msg. Board FAQ ]

Posted by George Mann on January 05, 2001 at 10:43:09:

In Reply to: Follow up on ride quality with 18" wheels/tires... posted by R.Mui on January 04, 2001 at 22:52:04:

Appreciate your advice as I am considering upgrading to 18 inch wheels also. There is a break in period on shocks or struts to be sure...
not to mention some break in on the tires. My
comment would be I've heard the Boge automatics are slightly firmer than the OEM Boge shocks. I'm
sure new automatics vs. worn out shocks in comb-
ination with 40 something aspect ratio tire does
increase the overall stiffness somewhat...certainly makes me think twice about
Bilstein's...don't want too much stiffness.
See Lin's post below...always room to second guess what ever you go with...that's why many suspension engineers are bald and grey.
Please post pics if you have a chance.
Best Regards,
90 735il/145K

Hi guys,

I promised that I'll post a follow up on the ride quality issue with my E32 735i (no self-levelling) with BBS 18x8.5" RK (ET13) with 235/40ZR18 tires all around. For those who hadn't read the previous posts the reason I needed to wait till now to post this is that I have just replaced all aging shock inserts with Boge "automatics" (supposedly OEM quality?) and all strut top mounts.

When I got the car back after the shock replacement the ride was really firm...especially on rough concrete pavement the whole cabin vibrated like crazy. After about 3 weeks now the ride is much more supple. Although fast corners seem to be handled better when the shocks were "stiff", rough concrete pavement and all are now taken with much less cabin vibration and on the freeway the car is simply smooth as velvet.

So I think I am safe to say that the 18" wheels/tires does NOT really give a much harsher ride over the stock size, as long as the suspension is doing it's job properly.



p.s. For those who would like to see the 18" BBS RKs I might be able to borrow a digital camera in a few days...didn't get what I wanted from Santa! =(

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