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| Mechanical and Engine Tuning and Mods Found a way to add horsepower by tuning a few parts? Have some questions about Tuning your own engine? Well post them here and learn from other members. |
This is a discussion on Ignition timing for 3.8 V6 1991 within the Mechanical and Engine Tuning and Mods forums, part of the Tech Forums category; I do use 95 (or 98 :cool: ) octane gas in my tbird. Do I have to have to do ...
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06-14-2003, 08:00 PM
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Ignition timing for 3.8 V6 1991
I do use 95 (or 98 :cool: ) octane gas in my tbird. Do I have to have to do any modifications to my engine? Tbird's owner manual recommends 87 or 89 octane gas. I think this doesn't need any modifications but can I gain more HP's?
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08-03-2003, 04:11 AM
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You should use the highest octane gas you can get. This is cleaner for 1 and 2 you can get more power. When you use higher octane you can avance the spark more. Like on the 87 and 88 t-birds (i dont know before or after those years) they have a switch that you choose prem or reg. When you choose premium it supposibly will advance you timing a little more. When you move down you regular, it will not advance as much. This is good casue either way this little system ensures the most possible power from either. But it is better to use the higher quality (90% of the time)
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