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A/F Ratio and Timing ???

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Old Apr 17, 2008 | 07:51 PM
  #11  
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can't go wrong with 16* and 11.5AFR. Both are safe IMO. (speaking of 9.5:1 compression) Then as Mort says, creep timing up maybe to test it out, but I seriously would dial in 11.5AFR and 16* and walk away.

A very wise man recently said, truck guys have a mentality of making **** last, even with big power. Or something like that LMAO, tune it to be fun and fast but most important be able to walk away feeling very conifident it will last. (as far as the tune is concerned)
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Old Apr 17, 2008 | 08:04 PM
  #12  
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so does timing need to dip at peak torque like on n/a cars? or stay the same across the board while in boost?
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Old Apr 17, 2008 | 08:09 PM
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most tunes I see tuners still practice the tq dip, but I haven't seen any dyno info to prove it does much good on FI over 6psi. I'd tune around the cam hot spots. Stock cam...nah, I'd make it flat. Run it flat at the track for 2 runs then run it with a dip. Fastest time or MPH set wins. LMAO. I don't do it in my tune any more, but that doesn't say much since I have been super inconsistent for the past year and half due to trans issues.
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Old Apr 17, 2008 | 10:12 PM
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I run anywhere between 18-20 deg. with 10 psi + It all depends on the quality of gas you use. I can normally run 91 octane and 18 deg. no problem. 20 deg usually needs the help of 100% meth. I would start low 16 or so and work you way up slowly. I like my A/F rich. High 10's to low 11's.
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Old Apr 20, 2008 | 05:52 PM
  #15  
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do you run your striaght across also?
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