Ben Prendergast Posted August 10, 2007 Report Share Posted August 10, 2007 Hey All, Thought I'd start a post here on my tuning progress, I'm at the point where I've tuned my fuel/timing maps as far as I can without a dyno, so thats next. Its the STi Ej20 so has a relatively strong bottom end. Mods: Intake: Hyperflow FMIC with CAI and Catch can, AVO silicone inlet Turbo: Gtpumps GTPS03 (TD06Sl2 core with 20G and 8cm housing) Exhaust: AVO dump pipe in Fujitsubo catback, Gtspec headers/uppipe heat coated and wrapped Fuel system: 800cc injectors, Fuel Reg, split fuel rails ECU: Link G3, Techedge WB02 sensor, Knocklink, and AVCR I'm running about 11.2AFRs at redline and 14.7 in vacuum/0psi, and about 23 degs timing advance at redline Shooting for 1.3kg/cm (18.5psi) and 1.45 (20.5psi) for special occasions Using Shell 100RON fuel. Just setting up a fast street car, maybe a few 1/4 runs and a track day here or there. So thats about it, can anyone chime in with some advice on the following? 1. Whats the best way to tune warm up enrichment? Should I still be shooting for AFRs in the 14.7s? If so I've had to pull a heap of fuel from the stock maps as the car just bogged like crazy when it was cold (even though I'm babying it). 2. Does anyone have any advice on tuning timing on the road? I'm not seeing any knock, but I don't really want to tune with the knocklink, rather maybe looking at MAF output or something? 3. Closed loop fuel, I've got it set to 5% and gain control on 3, at idle it seems to swing between 4 and -4 but a higher gain just makes it swing more dramatically. Is that normal? 3. Any general road tuning tips?? I've just been logging a heap of data, no load slow revs up the tacho, brake-loading to keep the cells occupied for a second, and cruising. Thanks for any help! Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.