Nitrous tune

[Power Hungry]

What I meant was more like this...

If we tuned for the 75 shot:

50 HP Shot - +2 Deg.
75 HP Shot - No change
100 HP Shot - -2 Deg.

Something like that. In many cases, a change to timing isn't exactly necessary. However, these 3V engine are pretty particular about excessive timing and will rattle at the slightest chance. It's fortunate that nitrous adds its own fuel which is controllable through jetting. This makes it easy to run just a tad richer and help reduce the possibility of detonation. It may have a slight performance penalty to run a tad rich, but it's certainly better than wiping out a piston from detonation.

[natyh2004]

ok cool! Sounds easy enough.
Oh and i have a 4.6 so it's a 2v.
Any difference for that engine?
Thanks again for the replys!

[Power Hungry]

Well, to put it more broadly, all the Ford "Modular" motors are picky about timing, although the 3V engine seems to be particularly fussy. The detonation concerns are just as valid on the 4.6L as they are on the 5.4L's. The same standard guidelines still apply.

Hope this helps.

[natyh2004]

thanks for the help. i will be ordering my nitrous tune this week and i will just do the 75 shot so i can adj +2/-2 for the 50/100 shot.