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Old 01-27-2004, 10:17 PM   #1
mr2guru
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Member#: 10334
Join Date: Sep 2001
Location: St. Louis
Vehicle:
91 RX7 LSx swap
'09 CC 3.6 4motion

Default UTEC w/ reflash tuning

This is an open ended question, but....

I have an ECUtek tuned for 550s w/ stock afrs I am using a UTEC for all fuel/timing tuning. I now have 740cc inj. If my 0% fuel column was 0's "about" what would it be with 740cc? I just want to start in the ball park to make things easier. I remember Riftswrx took out 7 across the board w/ 785cc's and got close. Does that sound right?

Thanks
Jim
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Old 01-28-2004, 03:47 PM   #2
big_adventure
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2005 Decathalon 21sp
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I've never done exactly that, but it sounds relatively close. I'd use a copy of DD to center your fuel learning in CL, but I would think that you would get at least within the learn range with those settings. I don't know the equation off hand for MAF volts vs. real air (and thus real fuel), but if you're within the learn range, it will run OK in CL fueling. Hook up DD, check the fuel learning, and try to get it close to centered by changing the UTEC 0% col when the car is warm. Then the 0% col should work - you just have to test out actually driving it at less than your TPS OL fueling crossover to see if it can hold the right AFR and learning stays moderate.

Have fun...

-Sean
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Old 01-28-2004, 06:46 PM   #3
TyranosaurusWRX
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I read that at projectWRX also. I have the 785cc's and taking seven out across board seems to be a good starting place, based on the stg4 map. My EGTs were fine. It will at least get you in the right direction.
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