Kehops

I actually bought my 1993 SE 5sp 3 months ago (during winter time) and now spring is coming and I'm starting to mod my car.

First I wanna get CAI, I've heard awsome feedback from the CAI. How does it compare to a pop intake??

Do you really feel a noticeable improvement once you hook it up?

ckcie

Take a look at these links. They have some pretty good but simple info on CAI and HighFlows. This guy and his friends did dynos on the two intakes on their 4th Gen Max's so take that into account.
http://www.bol.ucla.edu/~cchiu1/mods4.html
http://www.bol.ucla.edu/~cchiu1/faq4.html

Kehops

Ya, I read all that before

I'm looking really for personal experiences more than technical definition of the two systems

Chris91SE

iTrader: (1)

i personally love my CAI...i highly recommend it...gives a nice throaty sound over 3k RPM...i did notice a small loss in low-end power but once the exhaust gets swapped out i don't think i'll have that problem anymore...

brubenstein

Cross post from an Infiniti forum:

"Re: K&N Filters - Part 2 q45tech
You have to understand that we sell the pop charger for Q/J/G and have for the past 5 years, having over 50 of our clients cars so equipt.
Every 3k-15k or sooner we see these cars for service and every 30k they get a throttle body clean $59 [plus a recommended filter wash, clean, and reoil for K&N] for which they are charged $29 + $4.50 =$33.50 for cleaning.
We see the dirty water/intakes and expend the time [more than 1 hour to properly dry oil/ filter]. Plus spraying [brake cleaner] the dirt from the MAF screen and elements.
Now we make about $50 selling snd installing the unit and generate another $100 in gross revenue per 100,000 miles helping to keep it clean so $60x50 = $3,000 in profit [big deal?].
But aside from the extra noise which is why most people run the unit, there is little if any HP to be gained. Plus a potential for instability and power loss in Summer heat.
A few years back air flow test were run to try to find more power at any cost on my Q...Extrude hone intake runners and plenun [$1200]= 4 HP, enlarged custom matched throttle body [$600]= 2-3 HP and popcharger [$150]= 2 HP cold NEGATIVE 13 HP HOT [100F ambient 173F underhood].
You can run a similiar test via monitoring the the voltage from the MAF as the ECU does with a Consult or other data recorder....this can be translated to grams per second of standardized air flow [5.0000 volts = 255 grams per second +- 1%] and 4.553 volts is a very high flow [super breathing] at 40F.
Remember a perfect clean Q engine has a very hard time ingesting more than 450 CFM under any conditions due to cam timing even after you've spend $2000 on intake mods.
So they are comparing apples to oranges in a way as big block Chevy 350-454 do use no more air and flow restriction is important especially with GM paper filters but Nissan filters are better at both air filtration -clean and dirty than the reference filters [GM] they chose to test for their advertisement.
If you're in the neighborhood and want to buy one we always have them available and will be happy to take your money."

Nismo87SE

The CAI is a very effective intake vs the POP style intake. Here is my dyno of my CAI below, I also put in my baseline dyno to show the difference in power. I should also mention my 1/4 ET's dropped by 3 tenths, while I gained 2mph in 1/8 traps and 1.5mph in 1/4 traps.
http://www.geocities.com/nismo87se/CAIdyno.jpg

kingston

CAI question, has anyone made an easy method of removing the intake from under the fender and cleaning it and putting it back without removing the battery, and unbolting the intake piping. Please let me know. It was a pain in the ***.

Chris91SE

iTrader: (1)

wow you take all of that out?! i just pull off the inner wheel well piece above the tire...it should give you full access to your filter...just remove it off the tubing...clean...and reattach...