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Here is the Excel file I used to map my Fuel and ignition tables. I am sure some of you guys out there can get some use out of it. I recently had Mick from subzero Dyno my car. You can clearly see the fuel he took out of it at PFC load Value 15-16. The car was being retuned at 1.10bar. The Ignition points around 15-16 need to be trimmed at peak torque to reduce detenation. Did make 225kw tho. When the timing is retarded I think it will negate the extra boost and all I`ll end up with is a slight increase in mid range power only, probably actually loose some up top.

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https://www.sau.com.au/forums/topic/16374-power-fc-chart-mapping/
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Originally posted by Steve

225kw with stock turbo!  1.1bar with stock turbo!!!! you're a very brave man:)

Your right on the money Steve, I only get near those figures with a healthy dose of octane booster and I still get a minor ping. I`m taking it down AIR for the next street meet. Fingers crossed I can get through another 6 passes.

Thanks boostd useful info.

I actually leaned out the fuel map at idle to try and reduce exhaust fumes (I don't have a cat fitted). Hunts a bit now (I took the AFM screens out also), but less likely to gas myself whilst idling in a semi-closed garage.

I'll drop my maps in for the RB26 and post here also.

Anyone else got RB26 maps?

  • 2 weeks later...

Its Greg from base. What do you reckon try loading your figures into my car. Where could I go wrong. Our cars have the same mods virtually. Mine has only had one tune for an hour on a 43degree day. So there is nothing to loose. I am planning a turbo upgrade in the near future so it will have a retune then.

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