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Old 04-21-2011, 11:20 PM
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dustin72 dustin72 is offline
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Join Date: Jan 2010
Location: Vegreville, Alberta
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Vehicle: 2013 Dodge Ram1500 4x4
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Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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I have basically the same question. I'm trying the Superchips 93 octane tune on 91 octane fuel. But since I'm at 2200ft, I thought that I may be able to get away with it without running into excessive KR. How much is excessive KR? I was seeing a peak of about 3* for about a second or two under the most extreme loading. Under 98% of driving under various loads and rpms, KR was basically non-existent.

Black SRT10 22's with 305/45/22 Nitto NT420S Tires, 6000k Low and Fog HID's, Debadged, Tint, Custom Mopar Badges, S&B Intake, Magnaflow Muffler, Superchips Tuner
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