first taste of tunning with my 50tim and 720cc inj. need help

4BangerV8Killer · 01-07-2007, 04:05 PM

im tunning with an safc and im running a PTE50trim, FMIC, walbro 255 and 720cc injectors and supprting mods.

20PSI on 91octane

my HI throttle safc settings now are at

RPMS Settings

1k~~ -13%

2k~~ -12%

3k~~ -15%

4k~~ -16%

4.5k~~ -15%

5k~~ -14%

6k~~ -17%

7k~~ -16%

my log:

3500RPMS~ INJD 21%~ KNCK 0~ 02V .87~ TPS 82.4%~ TIMA 30deg~ INJP 7.1ms

4000-5000RPMS~ INJD 71.8%~ KNCK 11~ 02V .87~ TPS 99.2%~ TIMA 16deg~ INJP 16.6ms

5700-6000RPMS~ INJD 82%~ KNCK 23~ 02V .87~ TPS 99.2%~ TIMA 16deg~ INJP 16.3

6500+ RPMS~ INJD 82.8%~ KNCK 32~ 02V .85~ TPS 99.6~ TIMA 16deg~ INJP 15.3

What should i do from here? im very new at tunning and not really sure on if im doing it right.

4BangerV8Killer · 01-07-2007, 04:12 PM

ok so today is my first day of tunning with my safc and i pretty much understand what im doing from all the posts and threads i have read so far. basically im trying to keep my knock at a minimal and my 02sensor voltage between .85 and .90 which i have been doing. and to eliminate the knock by richining up the settings.

my first question is on the safc to richin up i go down in percent right? and to lean it out i go up in the percent values??

and the other question is lets say my 02volts are good....lets say .85 at any given rpm range but im still knocking like 20 counts. to get rid of that i richen it up? or what?

and when it seems i have a good tune and my knock is minimal and im not running rich/lean how then can i adjust to make more power? more boost? then readjusting the fuels?

sorry im just bearly grasping the tunning concept.

im at about 20psi right and and am running a pte50trim 720cc injectors walbro255 fmic...basically all supporting mods for a 50trim.

Thanks

spyderturbo007 · 01-08-2007, 08:02 AM

Is it possible for you to post the entire log? There are some weird things going on there that need to be addressed first. Did you do a leak check? Plugs gapped properly? Base timing set?

Your O2 voltage is showing a normal to lean condition, but with your SAFC settings and 720cc injectors, you should be running really rich. How about the knock sensor? Did you check that for "goo" leakage?

CanadianTSi · 01-08-2007, 09:32 AM

You got that Backwards.

Farther into the Negative is leaner, more positive is Richer.

4BangerV8Killer · 01-08-2007, 02:19 PM

well i did some more tuning ill do a pull when i leave and post the entire log for you guys

4BangerV8Killer · 01-08-2007, 03:31 PM

ya i fixed all the leaks the timing is at 5btdc plugs are cool but im gonna get some bpr7es's probably today and the knock sensor is bran-new. my new log/settings

SAFC:

1k~~ -13%

2k~~ -12%

3k~~ -11%

4k~~ -6%

4.5k~~ -6%

5k~~ -6%

6k~~ -6%

7k~~ -6%

LOG:

RPM INJD KNOCK 02V. TPS TIMA INJP

3343 20.3% 0 .85v 99.2% 29 7.4ms
3437 22.6% 0 .85v 99.2% 29 7.9ms
3531 26.5% 1 .85v 99.2% 28 9.2ms
3656 33.5% 0 .87v 99.6% 28 11.0ms
3750 40.6% 0 .87v 99.2% 25 13.0ms
4031 57.8% 0 .89v 99.2% 18 17.4ms
4156 61.7% 0 .87v 99.2% 15 17.9ms
4437 67.9% 4 .87v 99.6% 17 18.4ms
4531 71.0% 4 .87v 99.6% 15 18.8ms
4687 73.4% 4 .87v 99.6% 15 18.9ms
4750 73.4% 3 .87v 99.6% 16 18.6ms
5562 87.5% 1 .85v 99.2% 20 18.9ms
6093 92.1% 1 .85v 99.6% 22 18.1ms
6312 92.9% 5 .85v 99.6% 21 17.6ms