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      05-26-2018, 11:57 PM   #243
wassa09
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This is such a useful build love it
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      06-27-2018, 04:27 PM   #244
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Originally Posted by vtl View Post
During the turbo install, i removed the subframe and 034Motorsport engine mounts. I had just installed the mounts a week earlier and had around 600km on them so far.

I had already unbolted the mounts from the bottom and top. As I tilted the subframe downwards during removal the engine mounts rolled out in pieces!

One of hte mounts had failed, and the other mount lookedl ike it was close to failing. The problem is the bottom cap is pressed in and the bottom perimeter of the mount is pressed in, preventing the cap from falling out. Unfortunately they had not pressed them in enough and resulted inthe caps moving. This is bad because the plastic caps support the weight of the engine.

034 was very responsive and had good customer service regarding the failure. They sent me new mounts which arrived within a few days. The new mounts look the same except they had laser markings on the body with the 034 logo on them. But personally I just didnt trust the mount design.

I had some 100mm billet aluminium stock at home so I machined up a pair of new caps to fix the old failed mounts. Took a while on the little lathe. After machining them i made up a pair of jigs to hold the bottom caps on during welding. I made the caps compress the rubber mounts slightly so the rubber wouldnt shift around so the jig was quite important. I have a cheap MIG welder at home so I could not weld these mounts myself. I used Ray from Rev Speed Auto in Clayton, cost $40 and was done very quickly. I figured these would be challenging as the mounts are filled with rubber so you really don't want to cook the mount as its being welded.

Installed them in on the weekend, feels much better than the old mounts I was using (335is right mount, stock left mount). Gear changes and throttle transitions feel a bit more solid. Only thing I notice now is a slight bit of a vibration from the engine at 650rpm idle. Will see if it goes away after a few weeks otherwise will bump up the idle speed to 675rpm. After driving the car on the weekend the vibration seems to have reduced significantly so will probably work itself out over the next few weeks.
You think that maybe filling the bottom rubber part with some sort of high temp rubber or epoxy would remedy that issue? Or where they just not manufactured correctly?

I just don't see the difference between the stock/335is or 034 with regards to that specific part of the mount, you know what I mean?
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      06-27-2018, 06:57 PM   #245
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Quote:
Originally Posted by gmagnus7 View Post
You think that maybe filling the bottom rubber part with some sort of high temp rubber or epoxy would remedy that issue? Or where they just not manufactured correctly?

I just don't see the difference between the stock/335is or 034 with regards to that specific part of the mount, you know what I mean?
The weight of the engine effectively sits on the bottom cap, and the outside edge lip of the aluminium housing is rolled over to stop the bottom plastic cap from coming out. Hence the weight of the engine sits on the rolled over edge of the aluminium mount. I noted that the 034 mounts did not have this edged rolled over properly (looks incomplete and not rolled completely over the plastic cap). On the OE mounts this edge is rolled over much flatter. My theory is that the tooling 034 is using to press/roll the edges isn't as powerful as the OE tooling, so the bottom cup can fall out.

Epoxy wouldnt really be ideal, as youd have to support the weight of the engine based on the adhesive under tension between the rubber and the aluminium housing. Usally glueing rubber parts would be a pain, combined with the fact there would be release agents still bonded to the rubber that youd have to deal with.
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      07-19-2018, 12:38 AM   #246
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Picked up these Alcon 6 piston front brakes, the stock calipers look impressive and work well for street use but the longevity in track use isn't ideal. These calipers will hold up to track abuse better, and offer larger diameter and thicker discs for improved cooling, and shouldn't have any issues with heat. The discs are 2 piece fully floating as well, which allow the disc to expand radially from the heat cycles and look great too

Bled the brakes with a DSC bleed with Motul RBF660, looking forward to testing these out on a track day.

Eventually I will see if I can find some Alcon 4 piston brakes for the rear, as I have calculated the brake bias to have moved 4% forwards by keeping the rear brakes stock. Alcon are the OEM brakes on a small number of cars, they are all radial mount so they are easily adaptable. As for discs I would probably stick to an OEM BMW disc rather than go to the expense of fabricating 2 piece fully floating discs for the rears. One of the biggest reason to stick to an oe disc is so the handbrake works without any issues. Could go 335i rear disc, e92 m3 disc or possibly 5 series rear disc
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      07-19-2018, 05:09 AM   #247
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Looks great mate

I was going to ask if you're going to strip the paint off the rears, and paint all 4 corners the same colour. But then I read you're chasing Alcon's for the rears too, it's always great to have a matching set, helps with ocd lol
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      07-19-2018, 05:56 AM   #248
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Good stuff! What size are the front rotors?
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      07-19-2018, 09:19 PM   #249
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Nice pick up with the BBK.
Appreciate the detailed updates.
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      07-19-2018, 09:33 PM   #250
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Quote:
Originally Posted by Aus335iguy View Post
Good stuff! What size are the front rotors?
The discs are 355x32mm they weigh similar to the stock discs despite their size increase.
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      08-05-2018, 05:47 AM   #251
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Great thread!
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      08-31-2018, 11:24 PM   #252
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Great detailed posts vtl - just joined the forum as I'm looking to sell my 135i but got caught up reading through your thread!!
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      09-03-2018, 09:06 AM   #253
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Great thread!
Buy another one!
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