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knock retard question using autotap

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Old Sep 1, 2003 | 01:23 PM
  #1  
foff667's Avatar
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From: Trenton, NJ
knock retard question using autotap

at wot at the end of second gear i get like .20-.40 degrees of retard is this bad? Should i consider using different gas...iat temp was like 77 degrees so its not like it was boiling hot.

Thanks
Bill
Old Sep 5, 2003 | 04:45 PM
  #2  
TNT SS's Avatar
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From: Omaha, Nebraska
What grade of gas are you using now? Obviously you are getting some sort of detonation, or false knock to retard your timing.

Try a better grade of gasoline. 92 octane minimum, or if you have alot of mods, then you better start thinking about a good unleaded racing fuel, or additive (NO NOT THAT NOS CRAP!)

Recheck your autotap datalogging, and be sure to get some data on timing,knock, and air/fuel. I got a shiny nickle that says its crappy fuel. I ran 91 octane in a pinch one time, and my car HATED it.

Good luck.
Old Sep 6, 2003 | 12:01 AM
  #3  
foff667's Avatar
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Joined: Jan 2001
Posts: 398
From: Trenton, NJ
Originally posted by TNT SS
What grade of gas are you using now? Obviously you are getting some sort of detonation, or false knock to retard your timing.

Try a better grade of gasoline. 92 octane minimum, or if you have alot of mods, then you better start thinking about a good unleaded racing fuel, or additive (NO NOT THAT NOS CRAP!)

Recheck your autotap datalogging, and be sure to get some data on timing,knock, and air/fuel. I got a shiny nickle that says its crappy fuel. I ran 91 octane in a pinch one time, and my car HATED it.

Good luck.
yah ive been running 93 octane but its delta crap so that very well could be the problem...running out of decent gas stations around me though...guess ill go a little out of my way to get better results...thanks guys.

lata
Bill
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