Got a Wideband finally and tuned

[sickguy]

Hey guys, for you who read my previous posts know that I had little luck tuning my car using just SAFC and logger, so I got a Zeitronix wideband finally and tuned it. I got all the supporting mods including 550cc injectors, 190lph fp and Hanh SMIC, pls refer my profile for complete mods. I'm still not quite sure what Air Fuel Ratio I should tune for. Below is a run I logged with 18psi of boost. Please keep in mind it runs on Octate 91 gas so I believe it should run a little richer to keep it from knocking. The log looks fine to me except it's quite messy before full boost at around 3.3k rpm. I've included the Wideband AFR so please give me some input on what I should do. Thanks!

[sickguy]

RPM	Timing	TPS	Narrowband	Wideband
2036	16	65.23	0.94	15.00
2104	8	98.62	0.98	10.30
2188	7	98.62	1	10.20
2256	7	98.62	1	10.30
2336	8	98.62	1	10.30		SAFC Setting
2448	5	98.62	1	10.30
2528	4	98.62	1	10.20		1k	13
2648	3	98.62	1	10.10		2k	13
2736	3	98.62	1	10.10		3k	-5
2864	4	98.62	1	10.00		4k	-11
2992	6	98.62	1	10.00		4.5k	-14
3140	6	98.62	1	10.10		5k	-17
3304	4	98.62	0.98	10.10		6k	-19
3484	6	99.41	0.98	10.20		7k	-20
3648	7	98.62	0.98	10.10
3804	8	98.62	0.98	10.10
3972	10	98.62	0.98	10.10
4144	11	98.62	0.98	10.10
4292	11	98.62	0.98	10.20
4484	11	98.62	0.98	10.10
4660	11	98.62	0.98	10.10
4816	11	98.62	0.98	10.10
4980	11	99.41	0.98	10.10
5144	12	99.41	0.98	10.20
5300	14	99.41	0.98	10.20
5444	14	99.41	0.98	10.20
5636	14	99.41	0.98	10.20
5788	14	99.41	0.98	10.10
5944	13	99.41	0.98	10.10
6072	14	99.41	0.98	10.10
6200	15	99.41	0.98	10.00
6356	15	99.41	0.98	10.00
6452	15	99.41	0.98	10.00
6572	16	99.41	0.98	10.00
6700	16	99.41	0.96	10.00
6796	16	99.41	0.98	10.00
6916	16	99.41	0.96	10.00
7004	17	99.41	0.96	10.00
7108	17	99.41	0.96	10.10
7188	17	99.41	0.96	10.00
7284	16	99.41	0.96	10.00
6748	17	53.05	0.64	10.60
5800	39	2.75	0.82	14.30

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[liquordrunk]

dude you are runnin REALLY rich you should shot for 11.5 to 12 when your WOT you need to take out some fuel and turn the boost up a little your running fine but ## at 10 on the WB i run mine around 11.5 at wot

[StyleElements]

yea man your rather rich .. being very rich is almost as bad as being very lean. being to rich also drains your car of all its power. if i were you i would set my high settings -25 across the board and start from there

[liquordrunk]

good point man.. it does drain power out of your car

[sickguy]

Thanks for the advice. I read it from kpt4321's (an experienced tuner here) posts that he had to run below 10.5 and close to 10.0 AFR to keep the car from knocking with a SMIC, that's why I tuned for ~ 10.2 . I'll try again shooting for 11.0 tomorrow morning (best time for tuning on freeway) to see if it improves or knocks more. Thanks.

[Newlogics]

Originally Posted by liquordrunk

good point man.. it does drain power out of your car

Don't forget guys, that he's running horse-piss 91 CA gas.

[Violater101]

Unless your running racegas, you don't want to run anywhere near 12.0:1, esp on 91 octane. I have my car tuned to 11.4:1 and it runs great. Good Luck