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1/4 Is my setup working right?

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Old Apr 27, 2007 | 06:52 PM
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Default 1/4 Is my setup working right?

the car picks ups fast on the streets according to my mind. track conditions did not look good to me but there were 10's being ran.
i finally went to the track for the 1st time with nitrous and spraying my 85 shot. i couldn't get any traction na or on spray 4 out of 5 runs. 3k window had me spinning for days and had to let off. even na was spinning and i had to let off.
so i got one good run down the track but didn't spray until i was at 60mph. it ran a 13.33X at 106. last year, na was 13.5XX. so i cut .2 off with the 85. both of these times have very similar reaction and 60 times. should i have cut more off even having sprayed at 60mph or is my nitrous and tune not set up right?
i know putting down the hp is where it counts and i need better tires, i'm trying to save myself from phukin with my tune and nozzle location if they are working like they should be.

00 ss a4 plastics to the air filter removed. 5177 dry kit. 100 jets(85 shot)
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Old Apr 27, 2007 | 06:58 PM
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well what kind of tires are you running??? get some MT and ull hook for sure. im guessing you were on street tires being you spun so much but thats what i would do.
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Old Apr 27, 2007 | 08:12 PM
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even if you spun you should have trapped higher, i trapped that mph stock,

with a 150 shot (at the wheels) i couldnt get the car into second or third cause the trans is fucked but i still trapped 123.

something doesnt sound right to me
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Old Apr 27, 2007 | 10:19 PM
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If you have not moved since your last posted run something is wrong.
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Old Apr 27, 2007 | 11:12 PM
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****..i was hoping to get reassurance that everything was ok. i was on 245 street tires with not much tread left and no burnout. my only good run did get good traction off the line, but i was thinking that at 60mph, i was probably 1/3 to 1/2 way down the track before i started spraying so maybe .2 faster is reasonably correct for an 85???

with crappy tires and track condition being far from optimal i was spinning so much off the line on the bad runs that i had to let off. one run at about 1/2 down the track, the car started to want to go sideways. on the streets i get good traction na and can spray at about 20-30mph.

on the streets, i cut my 0-60mph by about .5 when i spray so i was thinking the spray would have have the most effect there. what do you guys suppose i should have reduced my et by if i sprayed at 60mph to the end? i was thinking not much since nitrous would reduce et mostly in the first 60 ft given that the car hooks.
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Old Apr 28, 2007 | 02:00 PM
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Just for comparison my car all stock down to f1 tires went 13.70@106. 5177 kits can be lean from the get go. i would start by taking a look at your a/f.
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Old Apr 28, 2007 | 02:47 PM
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a/f is good at 11.8-12.2. i pulled alot of timing and made my .72-.84 dynamic cylinder air cells 20* where the rpm's were 3200+.
for some reason my pcm has been running on the low octane table. so i made both high and low octane tables the same to get the timing i wanted.

i actually want to command 12.5 on spray in the PE table but haven't found out what is causing me to run closer to 12.0. i was getting WOT AFR of 11.5-12.1 until i decreased maf by 3% to get the 12.0 range but when i decreased it again by 3%, there was no further change. i left VE alone because once i go WOT the LTFT are zeroed.
the thing is that the car feels like it's taking off at least .6 when i'm on the street and i can verify that at least .5 is taken off when going 0-60 mph, that's why i think everything is working right. i'm going to head to the track in a bit and see if anything changes.
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Old Apr 29, 2007 | 02:05 AM
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I can only say what mine was doing. I would leave stock timing and end up around 26 degress max timing at the end of my run on 100. Your a/f looks good if that is w/band. I think you need more timing. The copy of the high to low table is fine. What do your injectors look like? any knock? # below are small cam on a 5177
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Old Apr 29, 2007 | 04:22 AM
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i went to the track last wednesday and when i had timing at 20*, there was kr for maybe 2 tenths of a second at the end of the run.

today, i went to the track and had timing at 23* and got kr up to 3* but most of it was between 1-2* of kr. the kr episode started when i began to spray about 1/3 of the way down the track and lasted about 9 seconds. with the kr pulling spark, my total advance was mostly 20-18*. the afr had 2 bumps that went 12.7-13.3 that lasted 1 second each. the rest of the log shows 12.5 afr

i did a purge today and noticed my spray pattern was weak. maybe it's the bottle pressure? i don't have a gauge and didn't run my heater at the track.
the good run that i got today was 13.223 with a .534 reaction so compared to my consistent 12.5 na runs with reaction of .22X, i should have been at 13.0 or so for the 1/4 which still seems too slow to me for an 85 shot.or is this about right right?
i doubt it's going to be possible for me to spray with 26*. i can't determine for sure if it's real kr or not because i've ran 100 octane in the car before and my logs still showed kr but in a different pattern than when on 91 octane. i've reduced my kr attack and kr decay.
would a bottle heater likely get me 2 -3 tenths?
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Old Apr 29, 2007 | 11:28 AM
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your reaction time has nothing to do with your et.

if perfect is a .000 and your reaction was .534 with a 13.223 et, your total time was 13.757. better reaction doesnt help your et, they are sperate
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Old Apr 29, 2007 | 02:23 PM
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Originally Posted by JDP
your reaction time has nothing to do with your et.

if perfect is a .000 and your reaction was .534 with a 13.223 et, your total time was 13.757. better reaction doesnt help your et, they are sperate
no way!!!!!!! i don't want to hear this!!! i thought elapsed time was from when the light hits green to the end of the track?
so et is actually from when i leave the line to the end and not from the light?

i actually ran a 13.3 stock with a 0.01X reaction and i never claimed that time because my 1/4 were more consistent with a reaction time of .2XX and 1/4's of 13.5XX.
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