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Old 09-25-2002, 11:32 AM   #1
8Complex

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Default Road Dyno runs after tuning...

Well, I've been doing quite a bit of work in preparation for going turbo, which includes installing and tuning a Haltech E6K. I've been learning to tune it while NA, and thought I'd share my recent Road Dyno runs with you all.

http://8complex.com/rdruns/index.html

Previous to the Haltech, I was pulling about 130ft.lbs of torque and 118hp. I will try and get some of those charts up on that page outlining my mods and all as well.

The main thing I'm trying to point out is how flat the torque curve is, and for that matter, just how much hp is lost over the 6000rpm mark. I'm revving to 6800 currently and the only thing that is nice about it is that I don't have to shift as often.
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Old 09-25-2002, 03:25 PM   #2
Section 8
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Hey Nick,

Were you farting around with the maps between runs, were those vaiations in the curves due to road conditions (different places) or is that just the reproduceability with the road dyno?

cheeRS,

Greg
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Old 09-26-2002, 10:47 AM   #3
8Complex

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I believe those two low runs were from a small section of the road that was heading slightly uphill. It's hard to find a good, flat road around here... despite the lack of hills in IL.
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Old 09-26-2002, 10:59 AM   #4
Section 8
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Then add in a road that is free of the cars with special vinal graphics that you don't want to go speeding past and it gets that much harder.

What did you find was most diffacult part of the Haltech tune?

cheeRS,

Greg
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Old 09-30-2002, 02:52 PM   #5
8Complex

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The most difficult part of the Haltech tune has to be the fact that I didn't have an O2 sensor for the first 3 weeks running it, so it was like tuning in the dark. Oddly enough, I got the fueling pretty close, all things considered.

After getting the O2 in, it was just a matter of running and tweaking repeatedly. The timing map needed adjustment as I took it off some OBD-II logs and went from there.

Really though, I found it pretty easy to tune all around. I suppose the most tricky part of it has to be the correction maps -- I was tuning the main map, so the correction maps come into play at other, less controlable times. It's easy to keep the car at full operating temperature, but tough to keep it at cold start type temperatures.
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