2.3 ford performance tune and fuel octane?

[Brian_B]

i ask because there are many different methods of engine management. Does the ecu use a rolling average to deal with timing? Maybe it doesn’t wait for knock before it pulls back, and instead uses a wideband o2, exhaust gas temp, and injector duty cycle to determine max power output before knock

modern engines are doing a lot more then what there were doing back in then90’s.

if we don’t know then let’s make it clear we’re just guessing.

Well I haven’t cracked the code on the Ford ECU to see precisely - but I think the level of detail you are talking about hardly matters unless you are doing custom tuning to try to eek every little bit out —- and if you are doing that - you likely aren’t skimping out buying pedestrian 87 octane on your tune.

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[Kevin Scarbel]

Well I haven’t cracked the code on the Ford ECU to see precisely - but I think the level of detail you are talking about hardly matters unless you are doing custom tuning to try to eek every little bit out —- and if you are doing that - you likely aren’t skimping out buying pedestrian 87 octane on your tune.

I suspect one will only see a nominal performance benefit with 91 octane.
With 93 octane, you'll feel a difference (full 300 hp) but many will agree that 93 is considerably more expensive to run over 87 (or 89 and 91).

I was attempting to reach out to those members who have installed the performance calibration onto their 2.3 Broncos AND experienced running 87 octane.

 

[Original Bender]

Any update on 87 with the Ford Tune on a 2.3? I may still have it done and only run premium when heading to the dunes.

 

[23OBX2.7]

IMO do not run 87 in 2.3 or 2.7 its low grade fuel to startwith plus not gaining any cost savings VS good quality 91/93 that delivers better response and milage for mayby $5 tank more.

Ask a Porrsche dealer what fuel brand to buy in your area because brand and quality is regional and makes a huge difference.

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