well, the car's going off insurance this week so this is the last test for this year. i really wish i could track it now because it is running so strong. i looked up some logs of past runs that i kept to compare MAPs with my old setup. one thing i've noticed is that my MAP sensor reads 2 kpa lower than barometric kpa as compared to Weather Underground. yesterday's actual was 103 kpa and my recorded static MAP was 101 kpa. it doesn't affect anything but it's handy to know as i can just look up the kpa for logged days and subtract "2" to come up with my baseline.
my old setup was a thru-the-fender with 9" cone filter, scooped intake, 4" smooth tube, MAFless with a JHP tube connected to a 80mm BBK TB.
the first graph is a run at the strip last year. Weather Underground shows a kpa of 102.5 for that day so my baseline is 100.5 kpa. at a much higher speed but the same RPM as the second graph i averaged around 96 kpa and at a couple of points dropped to 95. other runs with that intake showed similar results.
this second graph shows a spirited freeway on-ramp run with the OTRCAI. the barometric kpa yesterday was 103 and my HPT measured static kpa was 101. i averaged a 100 kpa with it briefly touching 101 kpa a few times but as you can see the MAP stayed almost as flat as a board. if you look at the top of the graph you can see where my MPH and RPM have little humps instead of a steady ramp up. that's where the tires spun a little a few times. summer tires and torque FTL
. i'm kicking around moving the IAT sensor a little farther upstream as it seems to heat up a little where it is. my conclusion is that at least for low restriction this intake beats the "Hardcore type" setup hands down and is a very worthy mod.
. i told her it was a hobby which of course she doesn't understand. i've had several requests to make one but unfortunately the '05-'06s are different and i don't have one to fit up on. i also would feel compelled to make them perfect which would drive me nuts
i want one lol
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