weird AFR spike
10-11-2013, 07:56 AM
#1
weird AFR spike
Ill probably post this up on the org but figured id see if i can get an answer here first.
I was driving today and did a full throttle pull to get up around traffic, and the car sounded funny around 3000-4000 rpm in first gear and same thing again on second gear. I watched my LC1 and repeated a pull. my AFR was around 14.5-14.9 at 100% throttle O.O
I used my SAFC-1 and adjusted it, I had to add +10% correction on 3000-4000 rpm and the result was mid 13.5 AFR
I had pulled last about two weeks ago and had no negative issues car was warm for the pull as well.
Mods are (engine)
00vi (stock rail and injectors, 5th gen tb with 4th gen iacv)
3.5" 30" intake (schmelly fart style)
BBMAF (not currently off the car)
00vi activated at 4200rpm
z32tt Fuel filter
Shorty headers
OBX 3" downpipe
3" catback with magnaflow muffler
Innovate LC1 and SAFC
Prior to the run i will also note i had a correction only set for high rpm in the +3-7% range i was pulling at 14.1 without negative effect, car scared the crap out of me when i hit high 14s afr
I was driving today and did a full throttle pull to get up around traffic, and the car sounded funny around 3000-4000 rpm in first gear and same thing again on second gear. I watched my LC1 and repeated a pull. my AFR was around 14.5-14.9 at 100% throttle O.O
I used my SAFC-1 and adjusted it, I had to add +10% correction on 3000-4000 rpm and the result was mid 13.5 AFR
I had pulled last about two weeks ago and had no negative issues car was warm for the pull as well.
Mods are (engine)
00vi (stock rail and injectors, 5th gen tb with 4th gen iacv)
3.5" 30" intake (schmelly fart style)
BBMAF (not currently off the car)
00vi activated at 4200rpm
z32tt Fuel filter
Shorty headers
OBX 3" downpipe
3" catback with magnaflow muffler
Innovate LC1 and SAFC
Prior to the run i will also note i had a correction only set for high rpm in the +3-7% range i was pulling at 14.1 without negative effect, car scared the crap out of me when i hit high 14s afr
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