325 engine mounts
Moderator: martauto
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thrasher
- E30 Zone Newbie
- Posts: 22
- Joined: Mon Apr 16, 2007 11:00 pm
- Location: isle of arran scotland
right,burst two sets this weekend doing hillclimbs and some autotesting,is there an upgraded version i can fit or ones of some other vehicle that will do,i know iam perhaps being a bit sore on them,but i read somewhere they are not the best,cheers gus
Hi,
As far as I'm aware the E28 M5 ones fit. Perhaps someone else will confirm/deny this. I'm suprised that even with abuse they have broken, have you checked your gearbox mounts that they aren't broken or contaminated with oil and have become excessively flexible.
Cheers
As far as I'm aware the E28 M5 ones fit. Perhaps someone else will confirm/deny this. I'm suprised that even with abuse they have broken, have you checked your gearbox mounts that they aren't broken or contaminated with oil and have become excessively flexible.
Cheers
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thrasher
- E30 Zone Newbie
- Posts: 22
- Joined: Mon Apr 16, 2007 11:00 pm
- Location: isle of arran scotland
cheers i will check gearbox mount when i get under it,but certainly didnt notice any movement or banging noises in that area,would appreciate more help on this as it put me out the event and i was second, only noticed as temp wentup and noticed fan wasnt turning as i was against radiator,cheers gus
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handpaper
- E30 Zone Regular
- Posts: 883
- Joined: Sun Apr 16, 2006 11:00 pm
- Location: Newport, South Wales
Check the pic in my report here
Ring-Racing have put in a block of polyurethane with a bolt through it. It's almost completely rigid, and very strong (it's done 15,000 miles including over 60 laps of the 'Ring). I was supposed to change it when I got back home, but realistically, an M20 is smooth enough not to need rubber-mounting, so I left it. I may get them to do the same on the other side the next time I'm over there.....
Solid aluminum mounts are also available from a few suppliers in the US, but it would probably be easier/cheaper to have a local fabricator knock some up.
Ring-Racing have put in a block of polyurethane with a bolt through it. It's almost completely rigid, and very strong (it's done 15,000 miles including over 60 laps of the 'Ring). I was supposed to change it when I got back home, but realistically, an M20 is smooth enough not to need rubber-mounting, so I left it. I may get them to do the same on the other side the next time I'm over there.....
Solid aluminum mounts are also available from a few suppliers in the US, but it would probably be easier/cheaper to have a local fabricator knock some up.
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thrasher
- E30 Zone Newbie
- Posts: 22
- Joined: Mon Apr 16, 2007 11:00 pm
- Location: isle of arran scotland
yeh thought bout something like that but a mechanic pal pointed out that i might break the aluminium mount then as it would be to stiff,but if you aint had probs i could easily make something similar cheersgus
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handpaper
- E30 Zone Regular
- Posts: 883
- Joined: Sun Apr 16, 2006 11:00 pm
- Location: Newport, South Wales
You're not going to break an alloy mount - they're used because they're *much* stronger than the OEM rubber ones.
The only reason manufacturers use rubber mounts is to reduce vibration - not much of an issue on a race car, and only noticeable at idle with a straight-six.
The only reason manufacturers use rubber mounts is to reduce vibration - not much of an issue on a race car, and only noticeable at idle with a straight-six.
