Tunning for nitrous

nightrider45 · 2008-07-07 19:19:07

when doing a street tune with nitrous. What is it supposed to read on the wideband? 13 across the board as well? or am i supposed to treat it as F/I ?

melly mel · 2008-07-07 19:45:57

Tune it just like F/I. Mid 11's should do the trick. You don't wanna lean it out, that would be bad.

edit: I'm sure you know this already but you tune with the jets. Get your NA AFR's to 13.1 on the SAFC and then mid 11's during spray by adjusting the jets. SOME fine tuning is okay with the SAFC but be careful not to throw off your NA AFR's too much.

Last edited by melly mel (2008-07-07 19:47:35)

nightrider45 · 2008-07-07 20:00:48

oh ok kool, well what i was gonna do is on my SAFC2 have file 1 for N/A and file 2 for nitrous so each file will have different settings on the safc. but i get your point.

Last edited by nightrider45 (2008-07-07 20:01:09)

melly mel · 2008-07-07 20:03:15

You don't need two files. Hi throttle settings will cover both the NA and N2O and then low throttle settings for cruising to save a bit on gas.

nightrider45 · 2008-07-07 20:09:32

Ok i get it. cuz it will be 13 any ways so, it's just the jet settings, got it.

thanks

nightrider45 · 2008-09-20 14:38:19

just an update: I wanted to try a 75shot with advance timing by 1 degree and it's holding up, no knocking but the afr is set to 11.0 from 3k to redline.

nikatrel · 2008-09-20 16:28:54

using direct-port or fogger? j/w

nightrider45 · 2008-09-20 16:32:21

fogger, wet kit.

nikatrel · 2008-09-20 16:43:46

hows the pull with the fogger? definately worth the money? You been to the track yet?

im having a hard time deciding between fogger and direct-port due to expenses.

716Spec-V · 2008-09-20 16:45:32

direct port is alot safer! and super fun....not to thread jack but niatrel i got a direct port kit for sale if interested pm me

nightrider45 · 2008-09-20 16:52:04

nikatrel wrote:
hows the pull with the fogger? definately worth the money? You been to the track yet?

im having a hard time deciding between fogger and direct-port due to expenses.

get the fogger, spending the money for a direct port is not worth it. For that you can almost get a turbo kit.
It pulls great, I've been to the track but havnt used it. The rules are pretty stricked out there, I need a nitrous lisence and a flame suit for the track.

nikatrel · 2008-09-20 16:58:45

my goal for this car is mid 13's and i'll be 100% happy.

then i can start the 240sx project. you just convinced me to go fogger unless i can get direct port CHEAP.

thx bro

nightrider45 · 2008-09-20 18:26:03

no problem. g/l

nitrousONLY · 2008-09-20 18:29:50

hey nightrider, on the safc should there be any knock

nightrider45 · 2008-09-20 18:36:30

there shouldnt be any knock if done right. It depends on your jet settings and your afr readings

Last edited by nightrider45 (2008-09-20 18:37:01)

nitrousONLY · 2008-09-20 18:38:35

at idle i have 12 knock then when i start driving its at 0 then as i keep driving in a gear ready to shift it goes to like 4-5 or so

nitrousONLY · 2008-09-20 18:39:15

oh i ment n/a sorry

nightrider45 · 2008-09-20 18:41:24

if it's under the 3k rpms your fine, thats just engine noise, try setting the knock sensor on your SAFC on a hot day. You can also relocate your knock sensor to see if that helps

Last edited by nightrider45 (2008-09-20 18:43:35)

nitrousONLY · 2008-09-20 18:43:19

its always a hot day, how do you set it i know nothing about the safc2

nightrider45 · 2008-09-20 18:44:25

it's kind of complicated, there's a how to's on that i beleive but if u cant find it, let me know.

nitrousONLY · 2008-09-20 18:46:01

ok so what would it mean if theres knocking noise at high rpms on n/a

nightrider45 · 2008-09-20 18:47:51

means that your running lean close to detonation.

nitrousONLY · 2008-09-20 18:56:47

guess i should install my wideband.

nightrider45 · 2008-09-20 18:57:24

yes sir....

nikatrel · 2008-09-20 20:48:59

So another quick question... sorry to threadjack...

Wheres the best place to spray from for a fogger, im thinking of buying the WRP TB spacer and tapping that?

nightrider45 · 2008-09-20 20:52:41

make a hole big enough for the foger on the intake tube, like 6" away from the TB

Last edited by nightrider45 (2008-09-20 20:57:53)

red02v · 2008-09-20 20:56:52

nightrider45 wrote:
when doing a street tune with nitrous. What is it supposed to read on the wideband? 13 across the board as well? or am i supposed to treat it as F/I ?

I ran mine at 12.1 or so with the 100 shot direct port
Around 12.8-9 or so with a 75 shot single nozzle and I havent seen it go lean yet. Kinda iffy keeping it that high on n2o though.

Last edited by red02v (2008-09-20 20:57:58)

nightrider45 · 2008-09-20 20:59:13

thanks homie but i got it running at 11.0 cuz i have advance timing.

red02v · 2008-09-20 21:00:57

Yeah I guess I mssed that, I have mine retatrded 2 as well.

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