Stock filter vs ITG-Test #2.....
06-08-2004, 05:05 AM
#11
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Interesting - do you still have the S-flo pipe in the airbox (with stock filter)?
I know Mike mentioned that, I wondered if that changes the reading over just a stock filter alone.
Either way I'd probably run it the way that seems to flow best!
By the way I recently tested the S-flo w/new ITG filter on my 2000 Stage I car vs. a new stock filter, and basically they were the same, so no gain in this case anyway.
Either way I'd probably run it the way that seems to flow best!
By the way I recently tested the S-flo w/new ITG filter on my 2000 Stage I car vs. a new stock filter, and basically they were the same, so no gain in this case anyway.
06-08-2004, 07:46 AM
#15
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threadjack, how accurate is the 5115 in your formula with block002? I saw AF 10.5, 1bar @6700
this log was pretty strange, I only got 287g/s? MBC alone set at 1 bar. stock fueling.
06-08-2004, 08:30 AM
#16
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One little catch we noticed since then - ECU can request greater than 100% injector duty cycle
so the injector time in block 002, if > than 100% duty cycle, is now only theoretical and not actual. In this case you instead use the time in ms for 100% injector duty cycle in your air/fuel calc:
100% duty cycle time in ms = (1 / (RPM/120000))
i.e. so if the logged injector time is greater than the 100% duty ms value, use the 100% duty ms value in your air/fuel calc. Otherwise it will look extra rich when it really isn't - in your case, if your inj time was greater than 17.9 ms at 6700rpm, use 17.9 ms instead. (then you'll come out with a more reasonable 12:1 I think)
100% duty cycle time in ms = (1 / (RPM/120000))
i.e. so if the logged injector time is greater than the 100% duty ms value, use the 100% duty ms value in your air/fuel calc. Otherwise it will look extra rich when it really isn't - in your case, if your inj time was greater than 17.9 ms at 6700rpm, use 17.9 ms instead. (then you'll come out with a more reasonable 12:1 I think)
06-08-2004, 08:42 AM
#18
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I'm pretty sure Mike still has my ghetto home depot intake in his airbox. ;-) I think
that is making some diff too. Maybe just put the bell mouth in there and use the stock filter?