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01-05-2015, 06:27 AM | #23 |
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I'm basically stock. Just intake and mufflers.
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2018 BMW 440i - M Sport, Exec Glacier Silver Metallic/Coral Red Dakota Retired: '00 323i, '06 325Ci, '09 135i, '06 Z4M Roadster, '93 525i, '76 2002, '14 X1, '14 M235i, '16 X4, '16 435i |
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01-09-2015, 08:57 AM | #24 | |
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06-06-2016, 08:32 AM | #26 |
dances with roads
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He did post a reply, said his problem turned out to be undersized injectors. This makes sense to me based on my time spent in the STi forums, where folks would need bigger injectors when bolting on bigger turbos.
General note: Lean condition on boosted engine = excellent way to break expen$ive part$. |
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06-06-2016, 09:17 AM | #27 |
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I can tell you the larger injectors and newer tune completely solve the limp mode issue. I was getting it multiple time per track day, and have not had it since in 3 or more days. However overheating is still a big issue, despite larger oil cooler, colder plugs, and Zion radiator. I need something more here. Possibly it is related to the removal of the air box allowing too much air to bypass the radiator. I'm still trying stuff. Will report back, but I'm not rolling much ATM. Partly due to the supercharger belt self destructing, but mostly due to me being lazy about getting her fixed.
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2006 IBlue BMW Z4 MC - ESS VT2-525 Supercharged, JRZ RS1 suspension (500#F, 600#R) with Vorshlag plates, ST Trophy BBK with CL R6E pads, KKS gated exhaust, TMS sway bars, RE rear camber arms, VT engine mounts, Recaro Pole Position (driver), APR GT wing, Street: Volk G2s and Potenza, Track: Volk TE37SLs and BFG R1s.
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06-06-2016, 11:37 AM | #28 |
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Ok thanks.
This issue just popped up last weekend at the track on my NA Z4m. My first thought was fuel. I need to check pressure and I'll probably put a filter in and retest. I have no engine mods (all brakes and suspension) so bigger injectors would probably not be as much of a possibility for me. |
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06-06-2016, 12:06 PM | #29 | |
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