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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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Supercharger Installed, AFR Questions (noob tuner)
I haven't done a build thread yet but will in a week or so. I just got my Eaton M62 installed and fired er' up Saturday night. Ran great, (of course just at idle) haven't got to actually put load on it yet. I've been doing some searching and think i understand safe AFR's but wanted to ask for suggestions/recommendations as i have never done this before. As i understand it, not many people run the MSD BTM so hopefully you guys out there have some advice for me.
I just got my wideband yesterday and will be installing it along with a new non-abs MC tomorrow - then driving/tuning it. Here's my set up: KA24DE (OBD II if that matters) 8.8:1 Arias Forged Pistons Crower Forged Rods Fully O-Ringed Block Port & Polish Fully balanced/blueprinted ARP head studs & main studs custom turbo cams (don't have the specs) Ceramic coated pistons, valves, & bearings Stock exhaust & headers - using EGR bung to mount wideband I live in CA and have access to 91 octane. I know of one place in the area i can get 100 octane from the pump but will be running 91 99% of the time. This is a 1-2 day a week driver. All that being said, what should i be aiming for for a safe AFR assuming I get around 9-10 PSI? Looking for idle, cruising, and full throttle. From what i read it seems 11.5:1 is good and safe for boost/full throttle, 14.7 for idle and cruising. I'll be tuning with an LC-1 wideband and BTM. Thanks for any input. _________________ |
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