Race Gas in a stock LS1??
If the car has detonation problems then yes, you will see a gain. In a nut shell race gas allows you to run more timing. You don't gain anything from the gas itself, but it allows you to advance the spark.
Joined: Aug 2007
Posts: 24,241
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From: Turnin' Wrenches Infractions: 005
i agree so on a well running street car the average person would see no gain.
Even without tuning a gallon or two of 100 octane unleaded race gas might give you a little bit of a safety margin against detonation. The would have to be tuned as the others mention to get a gain with it. The leaded race gas will kill the O2 sensors in time.
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a friend of mine didnt listen to me, and put race gas in his bolt-on lt1...after running the race gas a few times, all of a sudden his car wouldnt go any faster than 13.9 @99 in the qtr. i told him he was retarded, and he changed his o2's, and was back to running 13.0. dont run the race gas.
