Quote:
Originally Posted by DarkSunrise
Nice - thanks for putting them side-by-side like that. Very easy comparison. Yeah there are a couple of places like 3500 RPM where my MAF voltage is higher but the overall average is slightly down vs. your setup. What header are you using? EL?
BTW I'll be tracking in hot weather next weekend on this tune. We'll see how it holds up. Hopefully will have a few days to dial back the top end timing and re-test before the weekend.
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Good luck and have fun!
I'm running a long tube 4-2-1 EL header (that i traded my Tomei EL for) into a 70mm front pipe and stock cat-back. There is not a lot of power compared to even stock exhaust w/tune under 3500, but power quickly builds from 3500~5000rpm or so. If you look at the shapes of the MAFv lines you will see the difference and how it reflect the power curves. While your log does not show much of a "dip" it does not climb as rapidly at the mid range as my log. After that, 5000~redline, I'd say it's pretty much a wash.
mine:
http://datazap.me/u/solidone/z61b-ho...22-100-164-173
yours:
http://datazap.me/u/darksunrise/ofh-...8426-8450-8515
As nice as some of these UEL perform on top of minimal piping to radiate heat under the hood, not to mention cost effectiveness, I prefer the balance of EL headers left and right banks.