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09-19-2018, 09:21 AM
Higher Meth % would be required with higher boost and more advanced timing.
Presumably, you need to log and see if there are any knocks, if so, higher Meth % would be required.
Some run 100% because they need to (boost levels) and others do it at lower boost, just for the insurance factor.
I intend to start at 50/50 and log. Will go up to 100% or whatever is required to ensure 0.0 knock at 17 PSI. (this is simply my target)
Uneducated Comment: I believe water would have a better cooling impact, though Meth would certainly help too. I'll be testing this for myself soon enough.
2008 335i Convertible, E93, N54, A/T (200,000+ km)
Wheels: 322 | Tires: R.275/35r18, F.245/40r18
TUNE: JB4/Trebila | 24 PSI | 100% Meth via dual CM5 | 94 Octane
BMS: JB4, Map 6 | WMI | 5" FMIC | OCC | DCI | Cowel Filters
RB: Inlets | PCV Valve
VRSF: DiPis | CP
HKS BOV
xHP Stage 3
NGK-97506 @ .020
Maintenance:
2018 - A/T Replaced | Ign Coils | Walnut Blast
2019 - Index 12 Injectors | VCG | OFHG & O-rings | TStat
2020 - OPG | Battery | IBS | Water Pump | Plugs | Alternator
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