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6 Posts
I just got finished with my first late night street tuning session. I've got an 04 evo, 3" TBE + HFC, boost set at 19.5, SAFC and WB.
My first run, safc at all zeros: from 3k to 6.5k A/F went from 12.7 to 10.5, pretty smooth.
My rpm points are: 2.6,2.3.4,3.8,4.2,4.8,5.4,5.8,6.2,6.8,7.2. I never went above 6.8 though.
When I got the WB, I talked to the guys at Roadrace briefly and they said a target of between 10.7 and 11 is good. I confirmed this online that about 11 was ideal.
Anyway, so I've heard "Evos run rich" many times online.. but what I saw, on my first run was lean all the way to 5.4k, then it crossed 11 and went a little rich at the top end.
So after 5 runs and tuning the safc I'm between 10.9 and 11 from 3.4k to 6.8k.
My settings are 6,10,9,6,4,3,1,0,-3,-4,-6,-5.
Can I "feel" any difference. nope. I don't have way of timing my pulls so I compared the time it took to pull from around 3.3k to about 6.3k. I know this is way rough, but my first pull un-tuned covered a higher rpm range than my last pull over the same 6 second period. Yes, all my pulls were along the exact stretch of road, all within the same hour.
So, maybe the bottom line is I don't have enough mods to get any noticable benifit out of the SAFC. I'll be installing the EGT probe and fuel pump soon, then injectors, then perhaps cams.
I just wanted to get some feedback or confirmation that my settings are resonable and my first steps down the tuning path are in line.
My first run, safc at all zeros: from 3k to 6.5k A/F went from 12.7 to 10.5, pretty smooth.
My rpm points are: 2.6,2.3.4,3.8,4.2,4.8,5.4,5.8,6.2,6.8,7.2. I never went above 6.8 though.
When I got the WB, I talked to the guys at Roadrace briefly and they said a target of between 10.7 and 11 is good. I confirmed this online that about 11 was ideal.
Anyway, so I've heard "Evos run rich" many times online.. but what I saw, on my first run was lean all the way to 5.4k, then it crossed 11 and went a little rich at the top end.
So after 5 runs and tuning the safc I'm between 10.9 and 11 from 3.4k to 6.8k.
My settings are 6,10,9,6,4,3,1,0,-3,-4,-6,-5.
Can I "feel" any difference. nope. I don't have way of timing my pulls so I compared the time it took to pull from around 3.3k to about 6.3k. I know this is way rough, but my first pull un-tuned covered a higher rpm range than my last pull over the same 6 second period. Yes, all my pulls were along the exact stretch of road, all within the same hour.
So, maybe the bottom line is I don't have enough mods to get any noticable benifit out of the SAFC. I'll be installing the EGT probe and fuel pump soon, then injectors, then perhaps cams.
I just wanted to get some feedback or confirmation that my settings are resonable and my first steps down the tuning path are in line.