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  • SN95 4.6L Mustang Tech

Afraid to tweak with my Xcal2... help please..

  • Thread starter Thread starter exindust
  • Start date Start date May 14, 2006
E

exindust

New Member
May 8, 2004
329
0
0
Moorpark, CA
May 14, 2006
#1
  • May 14, 2006
  • #1
I wanna get the most out of my 91 octane tune i got from MT but im afraid to bump the timing and what not because i have never heard what pinging or detonation sounds like... so im afraid i wont be able to tune it correctly... any tips?
 

Mike97gt

it doe snot
Founding Member
Jan 26, 1999
10,633
7
89
the people's republic of massachusetts
May 14, 2006
#2
  • May 14, 2006
  • #2
exindust said:
I wanna get the most out of my 91 octane tune i got from MT but im afraid to bump the timing and what not because i have never heard what pinging or detonation sounds like... so im afraid i wont be able to tune it correctly... any tips?
Click to expand...


i maxed the timming on my and maxed the lean and have had no problems. if you hear a metalic knocking sound or a rattle fromt he motor back the timming off, it only alows for a couple of degrees of timming in the 4k+ rpm range
 
F

ForPointSex

Founding Member
Mar 19, 2002
395
0
16
Mercer, NJ
May 14, 2006
#3
  • May 14, 2006
  • #3
detonation sounds like your valves are making noise. My mail order tune had the air/fuel mixture at 12.8:1. I leaned it out 2% and got 13:1.

I could increase 2 deg of timing (Max my tune would give me) without a problem too.
 
T

thomas91169

I'd donkey punch my sister.
Aug 19, 2005
0
0
0
Modesto, CA
May 14, 2006
#4
  • May 14, 2006
  • #4
do it in small increments and you should be fine.
 

lvmustanggt

New Member
Apr 9, 2006
721
0
0
Las Vegas
May 15, 2006
#5
  • May 15, 2006
  • #5
I have SCT Xcal2 SF and I put 4 % fuel in WTO and 2 % timming 2000-4000, 4000-6000. Now my car runs great , look at my signature
 
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