Boost Gets U Laid eh? Count me In - Toyota Yaris Forums

Yoda · 03-26-2012, 10:15 AM

If you really want to run 89 then get your engine tuned for it. Don't rely on the stock ecu to correct timing. The stock knock sensor is not all that good and not something I would trust when under any boost to control timing. Your talking about using a limited reactive system to correct timing with low octane gas while in boost. Bad idea. Too much timing retard can also be a bad thing for your motor and can lead to burnt valves. What ever fuel you want to use just be sure to get tuned for it. The Aem fic allows you to make two different maps.
You will have to turn down the boost to run low octane gas. Or just stay out of any high boost.
But really you need to be running premium. You never kno while driving on the road where you might need to suddenly accelerate to avoid a crash or something. That one time is all it takes for you to blow your motor. It can be done just not wise. If you love your car give it the best you can and premium fuel is not too much to ask. Good luck M8.

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03-26-2012, 10:15 AM	#11
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	If you really want to run 89 then get your engine tuned for it. Don't rely on the stock ecu to correct timing. The stock knock sensor is not all that good and not something I would trust when under any boost to control timing. Your talking about using a limited reactive system to correct timing with low octane gas while in boost. Bad idea. Too much timing retard can also be a bad thing for your motor and can lead to burnt valves. What ever fuel you want to use just be sure to get tuned for it. The Aem fic allows you to make two different maps. You will have to turn down the boost to run low octane gas. Or just stay out of any high boost. But really you need to be running premium. You never kno while driving on the road where you might need to suddenly accelerate to avoid a crash or something. That one time is all it takes for you to blow your motor. It can be done just not wise. If you love your car give it the best you can and premium fuel is not too much to ask. Good luck M8. --Sent from IPhone