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Tuning & Engine Management Engine Management, EGT temps, timing, wideband, datalogging, fuel trims, etc.

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Old 01-18-2006, 03:52 PM   #16 (permalink)
 
Registered: Nov 2005
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after walbro intstall....19psi on 91 pump

Just alittle chicken shit when it comes to pulling all the way to 7,500. Dont wanna mess anything up.

RPM Timing O2 1 Bank 1 <---------------1st PULL after a Cruising around WARMUP
2863 41 0.02
3027 43 0.88
2957 29 0.86
2984 24 0.86
3039 21 0.88
3125 18 0.9
3215 16 0.92
3301 12 0.92
3410 9 0.92
3512 8 0.92
3633 6 0.92
3750 4 0.94
3883 7 0.94
4020 8 0.92
4168 7 0.92
4297 7 0.94
4426 8 0.94
4547 8 0.94
4684 6 0.94
4801 7 0.94
4941 7 0.94
5070 8 0.94
5199 6 0.94
5293 6 0.94
5391 5 0.94
5484 5 0.94
5590 6 0.96
5695 7 0.96
5809 8 0.96
5902 9 0.96
6000 10 0.96
6113 10 0.96
6207 11 0.96
6320 12 0.96
6410 12 0.96
6504 14 0.96
6598 14 0.96
6684 15 0.96
6770 15 0.96
6867 16 0.96
6930 18 0.96
7008 18 0.96
7090 18 0.98
7156 18 0.98
7227 18 0.98
7309 18 0.98
7375 19 0.98


10-15MINS LATER 2ND PULL RIGHT HERE

RPM Timing O2 1 Bank 1
2980 9 0.92
3082 7 0.92
3188 6 0.92
3305 4 0.92
3422 2 0.92
3547 2 0.94
3668 4 0.94
3805 6 0.94
3934 7 0.94
4063 7 0.94
4172 6 0.94
4320 5 0.94
4438 6 0.94
4555 7 0.94
4680 6 0.94
4820 6 0.94
4934 7 0.94
5047 8 0.94
5176 8 0.94
5285 8 0.96
5422 8 0.96
5516 8 0.96
5625 8 0.96
5746 10 0.96
5879 10 0.96
5953 12 0.96
6082 13 0.96
6188 12 0.96
6281 14 0.96
6359 15 0.96
6465 13 0.96
6551 13 0.96
6633 13 0.96
6715 14 0.96
6801 15 0.96
6895 16 0.98
6977 16 0.98
7063 18 0.98
7137 17 0.98
7203 18 0.98
7289 18 0.98
7324 19 0.98

i AM still waiting on a UEGO Wideband and SAFC. AS for right now. I'll just keep the boost were its at and I really dont wanna mess up a $36k car.
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Old 01-19-2006, 10:32 AM   #17 (permalink)
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At 20-21 psi. your not going to mess anything up. From the logs, you do have some tuning to do; the timing going up and down between 3500 to 5400 and going rich from 5600 up. Some injector to go along with the AFC will work wonders.



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Old 01-19-2006, 01:42 PM   #18 (permalink)
 
Registered: Nov 2005
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do you still think that I can work around stock injectors w/ an afc? I'm sure I can lean it out some more. Can you tell I'm knocking just by looking at the timing curve?
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Old 01-19-2006, 06:08 PM   #19 (permalink)
 
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Timeslip: 11.510 @ 115.12
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You can never completely work around the stock injectors using an S-AFC unless you use race gas or alky. You need something that allows you to pull out significant amounts of fuel (mainly in the peak torque/mid-range), so that you can get the AFRs AND timing you need in order to make both great TQ and HP. With stock injectors on pump gas, you can make good HP, but you can't make good TQ. I've been through all that and been very successful, but in the end, you just have to decide on a flash or injectors. Frankly, I am not fond of having to mess with the stock injectors when they are plenty big for the stock turbo all the way up to 400whp, but there are many people (mainly in SoCal) who prefer that route almost to the point of stubbornness.

What I did after I finally gave in and got a flash was use the SAFC to fine-tune on a daily basis while also using it to tune for race gas at the track. This is a great method and works wonderfully, because you get the best of both worlds. You get the extra flash features (2-step launch control, raised rev limiter, removed fuel cut, idle speed control, and topspeed limiter removal), the awesome peak torque with broader torque curve, and the fine-tuning ability for changing conditions and octane.

Yes, your timing fluctuations indicate knock, and you are rich from 4300-5400 then rich as hell after 5400. Wait until you have the wideband before you lean it out, though. I'm not fond of the Uego, because it doesn't read below 11.0:1, which is kind of important, especially for you right now, haha. If they have changed it, then disregard...





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