How much droop do you recommend? I've just raised my ride height 17mm rear and 15mm front to OEM heights on BC racing coilovers. Not worried about the rear but front is close to the top of the threads. You can adjust the height through the shock body independent of spring preload though, should have done that.
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Mr Tidy's MC Thread - 4 Years On!
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Mr Tidy's MC Thread - Major Progress.
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Mr Tidy's MC Thread - Major Progress.
That's a good question and I'm afraid I don't have the answer. On lighter cars that I have more experience with, you want a minimum of about 5cm on the rear, say of a Lotus Elise. Any less than that and it will be terrible on anything other than the smoothest of roads. Track use is completely different.blobslosak wrote: ↑Tue Apr 28, 2020 7:00 pmHow much droop do you recommend? I've just raised my ride height 17mm rear and 15mm front to OEM heights on BC racing coilovers. Not worried about the rear but front is close to the top of the threads. You can adjust the height through the shock body independent of spring preload though, should have done that.
....
Most road cars usually have a ton of droop standard. The OP's complaints about the ride, plus having his coil-overs topped out, set the alarm bells ringing.
'07 Z4M Interlagos Blue. All options except extended leather.
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Mr Tidy's MC Thread - Major Progress.
You can see on my second photo the rear has a lot of droop so that looks ok. Front not so sure. But something I'll consider as I drive it more, cheers.
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Mr Tidy's MC Thread - Major Progress.
Cool. Yeah looks like plenty on the rear at least. Great that you have ride height adjustment and not just preload too.
For anyone wishing to measure droop, it's really simple. Measure the ride height, jack that corner of the car up until the tyre is just in contact with the ground (i.e. slight drag on the ground) and take the difference. The spring should still be under some compression.
For anyone wishing to measure droop, it's really simple. Measure the ride height, jack that corner of the car up until the tyre is just in contact with the ground (i.e. slight drag on the ground) and take the difference. The spring should still be under some compression.
'07 Z4M Interlagos Blue. All options except extended leather.
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Mr Tidy's MC Thread - Major Progress.
Lovely car! I think the standard suspension can use some improvement, may be interested in yours if you sell.Mr Tidy wrote: ↑Mon Apr 27, 2020 9:14 pm Good question, and being a newbie to all this sort of stuff I had to look it up. And the simple answer is I don't know how much droop travel I have!
I'm inclined to think the ride is firmer than I want for a long trip although I don't think it is any worse than when the car was lower, but of course I haven't been able to do a long trip, although the handling seems very good.
I haven't tried other springs on these shocks. In the event I do decide to use the Eibach springs that came with the car I'd get a set of Bilstein or KW dampers (recommendations welcome) so the coil-overs remain a complete kit.
Did you remove the CDV, if so can you feel much difference?
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Mr Tidy's MC Thread - Major Progress.
Thanks, I'll try to bear that in mind if I do swap onto something else.
Ross did remove the CDV, but it's hard to tell as I haven't done 20 miles yet.
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
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Mr Tidy's MC Thread - Major Progress.
Yeah good point! Looking forward to the next update.
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Mr Tidy's MC Thread - Major Progress.
On the subject of suspension alternatives, I ran the B12 kit on my 335is, together with poly subframe bushing inserts and a Wavetrac LSD and the car was transformed. After soliciting advice from respected local Z4M owners I opted for the KWv3s for my roadie, which I picked up from Demon Tweeks during one of their periodic sales and have been very happy with these. The B roads around the Niagara peninsular are similar to my recollection of the Herts area, during my Caterham days, so some improved suppleness is appreciated.
2006 M roadster, Interlagos Blue/black extended leather/carbon trim. Strong strut brace, Stromung exhaust, Apex 8.5/9.5 EC7 rims, KW V3s,Vibratech/Rogue engine/transmission mounts. 30k miles and counting....
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Mr Tidy's MC Thread - Major Progress.
So a quick update on this as I had the trolley jack out today to swap the wheels on my 3 Series, and once I'd finished I put it under my MC.
Even topped out on the H & R coil-overs I've got about 70mm of droop on the front and 80mm on the rear, so I would have thought that should be enough.
The damping on these units isn't adjustable, only the ride height. I haven't tried different springs because the previous owner bought them as a complete set so I'd expect the springs to be matched to the shocks like a B12 kit.
Now I can use it to go further than the shops I'll see how they feel, but I'm starting to think the Eibach springs that came with the car may be the way to go for a bit of compliance and add some new shocks. Then I need to decide which shocks for longer trips and the occasional B road blast. Bilstein, KW or others? Any suggestions would be appreciated.
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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Mr Tidy's MC Thread - Major Progress.
Well I took it for an MOT today, and it passed with no advisories - happy days!
So I came home the long way round and topped it up with Tesco Momentum - it was only £1.069 a litre.
Then when I got home I pulled Fuse 40 out again so I don't lose any headlamp washers parts. After messing about with the alignment of the glovebox catch I finally got it so that the catch worked properly, so it won't be falling open every time I hit a pothole any more.
So I came home the long way round and topped it up with Tesco Momentum - it was only £1.069 a litre.
Then when I got home I pulled Fuse 40 out again so I don't lose any headlamp washers parts. After messing about with the alignment of the glovebox catch I finally got it so that the catch worked properly, so it won't be falling open every time I hit a pothole any more.
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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Mr Tidy's MC Thread - Smaller Steps Now
I usually use Tesco 99 all the time in my 370Z, but the closest one to me is 13 miles away in the opposite direction to the food shop I was going to yesterday. So I had to put shell V power in instead at 1.26 a litre!
Shell have always been absolute robbing gits for sure!
Current...BMW F82 M4 Coupe 2018
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Mr Tidy's MC Thread - Smaller Steps Now
Ah yeah but every 4 million fillups you get a free Costa coffee and 50p off a Ginsters, so it’s totally worth it.LeeZ4MR wrote: ↑Thu May 21, 2020 12:21 pmI usually use Tesco 99 all the time in my 370Z, but the closest one to me is 13 miles away in the opposite direction to the food shop I was going to yesterday. So I had to put shell V power in instead at 1.26 a litre!
Shell have always been absolute robbing gits for sure!
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone
2006 Z4 2.5si: gone
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Mr Tidy's MC Thread - Smaller Steps Now
MrPT wrote: ↑Thu May 21, 2020 2:16 pmAh yeah but every 4 million fillups you get a free Costa coffee and 50p off a Ginsters, so it’s totally worth it.LeeZ4MR wrote: ↑Thu May 21, 2020 12:21 pmI usually use Tesco 99 all the time in my 370Z, but the closest one to me is 13 miles away in the opposite direction to the food shop I was going to yesterday. So I had to put shell V power in instead at 1.26 a litre!
Shell have always been absolute robbing gits for sure!
Current...BMW F82 M4 Coupe 2018
370Z Roadster 2011
Merc GLE400d 2022
Caterham 7 2002
Previous...
640d 2012
330i 2006
Z4MR 2006
E92 M3 2009
X5 4.8iS 2004
TVR Cerbera 4.5
370Z Roadster 2011
Merc GLE400d 2022
Caterham 7 2002
Previous...
640d 2012
330i 2006
Z4MR 2006
E92 M3 2009
X5 4.8iS 2004
TVR Cerbera 4.5
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Mr Tidy's MC Thread - Smaller Steps Now
It's every 10 fill-ups, and in-between the trigger points you get a random 10p off a tank off a £2 bottle of 20p/bottle water.
...and you get to offset your carbon emissions (I think they buy credits from Tesla) - so my 330D is cleaner than my Z4MC
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Mr Tidy's MC Thread - Smaller Steps Now
OP, good news on the MOT and the droop seems reasonable.
Did you notice any effect removing the CDV?
Cheers.
Did you notice any effect removing the CDV?
Cheers.
'07 Z4M Interlagos Blue. All options except extended leather.