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Old 06-28-2003, 01:19 AM   #1 (permalink)
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Default WAI vs. CAI

Ok, i did some testing today and finally got to compare the intake temps given by the wai and the cai on our cars. Intake air temps were measured by an OBD2 scanner. I tested the wai w/ and w/o my ghetto heatshield and a CAI that was scavenged from a KORE version I CAI for the 2000-01 tiburon. The intake temps were as follows:
Ambient ~90 degrees F
WAI
idle- 145-150
crusing- 118-125

WAI w/ heatshield
idle- 140
crusing- 120-128

CAI (ambient ~80)
idle-120
cruising-100

My driving impressions are the cai feels better in the midrange, and sounds much deeper but the wai feels better up top. Both are almost annoyingly loud at WOT above 4000rpms, to the point of almost being deafening. I'm gonna switch back to my wai, the intake temp drop doesnt justify the added flow loss from the bends in the CAI nor the added throttle lag due to the increased throttle volume (VERY small, but its there). Maybe one day I'll be able to do a true dyno test, but till then this is what i'm going on.

Cliff notes: sometimes cooler isnt better, go w/ a WAI.

Oh yeah, I almost got arrested while out "testing" the car/ At this one intersection I lit up the front tires while flooring it, so everyone around, including the two cops who gave chase, knew I was there. Thank god for side streets.
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Old 06-28-2003, 01:21 AM   #2 (permalink)
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Default Re: WAI vs. CAI

hmmm..i've been thinking about swithing over to a WAI. maybe i will now.
am i losing it or did the heat shield make things hotter?
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Old 06-28-2003, 01:28 AM   #3 (permalink)
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Default Re: WAI vs. CAI

Nope, things were hotter w/ the heat shield. :ermm: Heat shield is now in the dumpster.
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Old 06-28-2003, 01:56 AM   #4 (permalink)
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Default Re: WAI vs. CAI

Quote:
Originally posted by skierd
[body]
Nope, things were hotter w/ the heat shield. :ermm: Heat shield is now in the dumpster.
[/body]
I think the cat converter has something to do with it, since it is right below the exhaust manifold, right behind the heat shield.
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Old 06-28-2003, 02:23 AM   #5 (permalink)
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Default Re: WAI vs. CAI

Yeah a metal heat shield will heat up pretty quick, I've seen CF ones that look like they'd do the trick.
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Old 06-28-2003, 02:35 AM   #6 (permalink)
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Default Re: WAI vs. CAI

i did a little comparison to but by seat of pants
I notice that they are about the same.
Like you said skierd, i was wondering if if the extra length and bends was worht the few degrees dif. I guess it just balances out.

not to mention with a cai the filter will get dirtier faster.
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Old 06-28-2003, 03:04 AM   #7 (permalink)
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Default Re: WAI vs. CAI

wai?
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Old 06-28-2003, 03:08 AM   #8 (permalink)
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Default Re: WAI vs. CAI

warm air intake or also know as a short ram intake. You know just sticking the filter about afoot from the TB if that
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Old 06-28-2003, 03:09 AM   #9 (permalink)
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Default Re: WAI vs. CAI

lol warm air intake, im used to short ram
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Old 06-28-2003, 03:15 AM   #10 (permalink)
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Default Re: WAI vs. CAI

short ram sounds better :lol:
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