NITROUS OXIDE System Designs | Installation| Wet/Dry/Direct Port

timing and target A/f

Old Sep 10, 2006 | 04:28 PM
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Default timing and target A/f

for some of you with HPtuners what are you High octane timing table set for at WOT and your target A/F ratio in PE mood?

i want to start tuning for spray and wondering where ppl are setting bases at.

this tune will be track only tune so i dont mind it being a dog on street sicne this will be for the track


for a base i set mine at 11.5 and 20*

my normal tune is 12.0 and 30* and i see a average of 12.8 when at WOT on the wideband

this is why im asking where set points are
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Old Sep 10, 2006 | 04:43 PM
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the math will never line up if your close your doing good. Im guessing your pe divisor is set to 1.22 which should command 12.0:1 but your actually seeing 12.8. If your in SD you can raise the wot portion of your ve table and this will bring the numbers closer or if your running a maf you can raise the HZ from around 9500 and up by multiplying them by 2% or .02 and that will help line the numbers up.

I wouldnt worry about everyone elses numbers because the majority of them will be very off and in the end based on the individual setup.
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Old Sep 10, 2006 | 04:56 PM
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Yep, tune your own. The fact of the matter is, no one takes it to the track and makes a pass with 30* of timing, 20*, 10*, 25*. People just run what others run. Take it to the track and tune that **** out yourself and go faster than the rest.
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Old Sep 10, 2006 | 06:08 PM
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Originally Posted by Sport Side
Yep, tune your own. The fact of the matter is, no one takes it to the track and makes a pass with 30* of timing, 20*, 10*, 25*. People just run what others run. Take it to the track and tune that **** out yourself and go faster than the rest.
yea thats what i been doing seeing what works best for me. but just wanted a rough idea before i got out and do my usual street tuning
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Old Sep 11, 2006 | 08:46 AM
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How big of a shot are we talking?
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Old Sep 11, 2006 | 09:37 AM
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11.8 A/F with 26 degrees timing on 150 shot, but im running 111 octane racin gas...just watch your knock retard..maybe start with 20 and work your way up till you get knock then back off a few degrees..

Last edited by dirt track racer 81; Sep 11, 2006 at 10:50 AM.
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Old Sep 11, 2006 | 10:22 AM
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Originally Posted by zippy
How big of a shot are we talking?
not sure. i was going ot start off with a 75 shot and go from there. i want my goal of 11.5

from my experience a 75 shot netted me a 1.2 second gain i would like to hit my goal now if i for some reason am faster then the 11.5 is the goal and right now at 12.59 thats where im scratching my head at. be nice to hit the 11.0 mark but the 11.5 is more resonable

so basically whatever it takes to get there
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Old Sep 11, 2006 | 10:50 AM
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got pistons and rods??? if so go 175-200 shot..youll see below the 11.0 haha, but with a 75-100 shot you should see mid to low 11's
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Old Sep 11, 2006 | 11:04 AM
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I'd set the p.e. table to 1.230 to get started and bring the timing back 4º from where you have it right now for a 75 shot. After a few passes make some adjustments to dial it in for sure. Are you using a wideband?
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Old Sep 11, 2006 | 11:14 AM
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Originally Posted by dirt_track_racer_81
got pistons and rods??? if so go 175-200 shot..youll see below the 11.0 haha, but with a 75-100 shot you should see mid to low 11's
LQ9 baby with 11.1 CR lol with head studs
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