any big difference between custom CAI and WAI

98 nizmo200sx se · Jun 5th, 2003, 11:44 AM

i have a wai and i want to know if there is a big difference between the both in hp gains

zeno · Jun 5th, 2003, 12:17 PM

Not a huge difference, maybe 2-4 more hp.

98 nizmo200sx se · Jun 5th, 2003, 12:28 PM

should i take the time and the few dollars and make the cai

whiteb14 · Jun 11th, 2003, 12:38 PM

i think its worth it

rios · Jun 11th, 2003, 11:26 PM

do it!
but make sure that the tube after the maf, connceting to the engine is 2.5 inches and the other one is 3 inches. also, use silicone couplers, not rubber.

sentra2nr · Jun 15th, 2003, 09:14 PM

the only thing I can tell from the two is different pitch. I would say that the CAI makes the engine bay a litle less crowded though.

tomd · Jun 16th, 2003, 09:36 PM

Quote:

Originally posted by rios
do it!
but make sure that the tube after the maf, connceting to the engine is 2.5 inches and the other one is 3 inches. also, use silicone couplers, not rubber.

Whats wrong with rubber? Where can silicone ones be obtained for a reasonable price?

rios · Jun 17th, 2003, 10:45 PM

rubber could maybe melt. its good, but silicones better.

Tickwomp · Jun 17th, 2003, 10:52 PM

there's a post somewhere maybe its in the sr20 forums about CAI vs WAI. people claim that they feel more pull with the WAI and think maybe its b/c at the dyno, the air rushing into the CAI isn't moving, etc. not sure if its true but ihave faith in the WAI

not to mention houston has tons of rain...water+intake=bad

MontyCrabApple · Jun 18th, 2003, 09:35 AM

OK, I don't mean to be dumb, but I know CAI stands for Cold Air Intake, so what's "W" Air Intake?

MontyCrabApple · Jun 18th, 2003, 09:37 AM

I am dumb!! Haha
W stands for warm right? Duh. hehe
I just didn't understand why someone would want a warm air intake, if it is that.

dschrier · Jun 18th, 2003, 09:38 AM

It's impossible, as far as I know, to actually determine numerically the performance difference between a WAI and a CAI. At the dyno, the CAI will perform better because the WAI will start to suck in hot air from the engine. But when you're on the road, especially the high way, the warm air from the engine may be not as important because the air under the hood is getting recirculated. I could be completely wrong too, but I thought I'd just say what I felt about the subject.

zeno · Jun 18th, 2003, 10:55 AM

Quote:

I just didn't understand why someone would want a warm air intake, if it is that.

It's called a warm air intake because the air temp in the engine bay is hotter than the outside air. I bought my HKS because of the cost difference.

StevenLK · Jun 22nd, 2003, 02:59 AM

it won't get water in it if u had a BY-PASS- vaulve..... they are 30-50 bux ... but my bro' gave me his' he got a custom front mont intake. he's sponserd by Racer X motorsports hope i get to' too. but thats' a never........ but a by pass vaulve prevents water in the intake manifold'

azkicker0027 · Jun 23rd, 2003, 01:57 PM

i checked underhood temperatures after doing a food run at the airfilter on a wai, how does 135 degrees fahrenheit sound???