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      11-08-2015, 02:07 AM   #1
Second Lieutenant

Drives: BMW 1M AW
Join Date: Sep 2009
Location: Singapore

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Questions for those on upgraded turbos/high HP & Torque

Hi guys! it's been an exciting 2-3 weeks for the N54 community, as Pure Turbos have just launched their stage 2 turbos for our engines. I had contemplated buying RBs/Vargas/OD etc etc, but after much research, i realised that hybrids are really hard to make due to the balancing of the turbos and thus leading to issues such as smoking, turbo failure etc. I'm definitely getting one the next few days from Pure.

Just would like to know from the 1M owners who upgraded their turbos the following questions:

1. Clutch options. which clutch are you guys running? i'm quite certain that stock can't hold (hell, the stock unit died on me within 3-4 months) i'm currently on the clutchmasters FX350. only complaint i have about the CM is that its grabby, and jerks when engaging. peddle feel is great, like stock. it's quite nice but i m keen to explore other options. I've tried sachs performance as well but pedal is really heavy and durability not v good

2. Any opinions on flywheel is also appreciated. I have 87,000 miles on my 1M and it is definitely time to change my stock dual mass flywheel. should i stick with stock or change to Single mass? I daily drive my car and chatter matters to me, so i want something that feels as close to stock as possible

3. BOV/recirculation system. Which system are you guys running on for upgraded turbos? (Anyone using Tial BOV?)

4. what 100-200 timings are you guys pulling w the 1M?

I would also appreciate any discussion on upgraded turbos etc etc I will post my pure turbos stage 2 journey here as well for reference can't wait!
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      11-08-2015, 09:45 AM   #2
E30 Racer
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Drives: '11 1M, '99 540i/6, '89 325is
Join Date: Aug 2011
Location: Ohio

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Who's doing your tuning?
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