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Old 12-17-2009, 10:40 PM
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not sure what pinging issue you're talking about, but you shouldn't have any pinging with the stock tune, especially if you're using 91 octane gas.

The predator comes with 2 tunes- one is for 87 octane, one is for 93 octane. I'd start with the 87 octane tune either way, do some data logging to watch for knocking, and adjust the tune if necessary. I had to adjust the 87 tune a little to get rid of a little knocking when I got mine- wasn't a big deal, just something to watch for.

If you don't have 93 octane gas in your area, I wouldn't use the 93 octane tune at all. It will almost certainly cause knocking. If you really want to use 91 octane with the 93 tune, I believe there are some recommendations on the DiabloSport forums on how to adjust the tune- just depends on how much you want to mess with it.
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