///M

Has anyone had any rear subframe bushings fitted to an e8x or know of workshops in Auckland capable of installing a set at a reasonable cost? I’m considering e9x M3 rear subframe bushing for my 130i

Is this necessary or optional when upgrading to the 135i brakes?

Has anyone checked out either 1 of these 2 cars? Im wondering if they’re any good seeing as they’ve been on TM for a while; probably not surprising noting the prices https://www.trademe.co.nz/motors/used-cars/bmw/auction-2315375979.htm https://www.trademe.co.nz/motors/used-cars/bmw/auction-2443801132.htm

I think he said it came with the car

They’re not necessarily an issue per se, more of an incremental improvement one can make. The oem rear shock mounts are tall, soft (to reduce NVH) and deteriorate over time. Dinan rear shock mounts are made from a stiffer material which still has acceptable NVH properties but also allows the shock to operate efficiently. The biggest benefit is their reduced height. You can essentially run your stock progressive bump stops and have an additional 10mm of shock travel before the bumstops are engaged. This results in increased comfort, reduced pogoing effect and still maintains the sporty feel of the e87 (assuming the shocks are in good order). Whilst I like the B12 kit- especially at the price point, I’m not a huge fan of lowering the car any further; I reckon it’s low enough as is to be honest. If the Konis + rsm don't sort out the suspension I'll have to consider other options i.e. coilovers; but I'm reasonably confident (having had Konis on previous vehicles with good results).

Interesting. I guess to some extent anything is better than the OEM suspension. It’s not terrible on smooth roads to be fair, but does get pretty dodgy on some backroads. I’d love a set of Ohlins or TC Kline coilovers but I can’t justify the expense at this point in time. I’m looking at koni yellow (sport) shocks and dinan rsm as a relatively inexpensive solutiuon to provide additional travel in the rear and tame the ‘pogoing’ effect. I’ve read that rear subframe inserts go a far way in taming the rear end too- something else to consider I guess…

Out of interest, what sort of coilovers are you running? Thoughts on them?

How's are you liking your new brake setup? Did you bleed the brakes using the INPA proceedure?

Really? AFAIK all black tops (i.e. LCI models) come with electric power steering as well as other measures to help with fuel economy.

How do you find the hydraulic steering vs the lci's electric? Lovely car btw, Ohlins coilovers must feel special!

What did you end up doing?

Such an awesome project! Well done on getting this far! Do BPC still do tunes and MILVS? I was under the impression they stopped? Worse case scenario you could get a used MILVS set and a custom tune at Torque Solutions? Are you thinking a custom exhaust manifold or something OTS?

Awesome! Thanks for the advice Chris. I was thinking 235/40/18 myself (square setup); good to know I'm on the right track. Are you running e9x M3 alignment specs?

Thanks for the detailed response- clears up a lot of things for me! Out of interest, with the LSD, is throttle initiated oversteer easier or are the grip levels higher thus oversteer tendencies tamed? Secondly, apart from good tyres, if you were to do it all over again would you opt for suspension first or go LSD straight away?

Hey Chris. Now that you’ve had some time to acclimatise to the birds B1 setup, do you have any updated impressions? I’m particularly interested in whether you consider the Quaife diff worth it?

Awesome project Jacko! I love the attention to detail and parts used. What’s your updated thoughts on the UUC front carrier and TMS rear shifter bushing? I’m thinking of going down this route myself. Have you noticed and increase in NVH- particularly gear whine? Also, has the shift effort increased? I like the idea of having a more defined shifter that effortlessly clicks into place