HAI vs CAI. CAI wins

[szalajka05]

Got my aeroforce gauge and I've been messing around with it. I had a open cone filter on it and used the performance perk on the gauge (1/8 mile 1/4 mile and 0-60) also recorded my intake temps. Ten runs with the open cone then ten runs with my new k&n cai setup. 0-60 was better with the cai vs the open cone, 1/8 mile was faster with the cai and the 1/4 was faster with the cai. Intake temps were on average 30° cooler with the cai vs the open cone. Yes I know the air gets super heated due to the supercharger but what would you rather have? 80° air getting super heated or 110° air getting super heated? Bottom line is cooler air is better.

Post your criticism now if you disagree in having a cai...

[Fivefingerdeathpunch]

The aeroforce is not very accurate for those readings (1/8th and 1/4th) IMO.

Those .1 or even .2 of a second come down to the driver and maybe you spun a hair more on one run compared to another.

HAI is better IMO, because temp hardly matter.

[bigburban]

Ive had 2 different types of intakes as well.. the first was a home made 'home depot' intake with a specter filter.. I did mine a little different that what ive seen on here. since I have a 99, I have a different stock airbox than the 97-98's.. and what I did was kept the stock front half of the airbox with the pcm tray (pulls air from behind the headlight and had the front of the filter right against the pcm tray. The second one was a name brand one (dunno which), but it has a pcm tray, and a cover for the K&n filter (top, bottom and 2 sides next to the motor are covered) so it pulls air directly from the headlight and fender area. I noticed maybe a 2 degree difference between the two on my scangauge

[szalajka05]

Cooler air, more dense, more fuel, more power.

How is hot air better?

I think there is enough people saying hai's are better so people are just agreeing instead of trying to argue it.

My father has a m112 v6 stang and a very detailed tuner (led screen and computer) and he even did a open cone vs a cai and the cai performed better in every area vs a open cone.

science always wins vs a opinion...

[Fivefingerdeathpunch]

It just is.

The debate has gone on since the dawn of man.

The difference in a CAI to a HAI is so minimal that it doesnt even matter.

Unless you want to be the guy thats say "my car has .85 more hp because my car has a CAI"

Want cooler temps, do a intercooler setup.

[szalajka05]

Its funny that you say that. I've been doing my research on a intercooler. Gunna be my spring project.

[EJOUIE]

I would think that a dyno is more accurate than an aeroforce.

http://www.grandprixforums.net/dyno-...ake-33225.html

[DanPrixGTP]

$60 Spectre + PVC all the way. $250 K&N or Wizaired or Thrasher, no thanks

[ctracer]

of course cooler air is better...but on an engine that uses a supercharger as its method of forced induction, it doesnt really matter. unless you are running a really small pulley size but you need an intercooler to do that safely ANYWAYSSS.
i see bigger gains on alot of big v8 N/A cars or turbo cars.

the 1/4 mile estimator doesnt work.

[Mike Kopstain]

of course cooler air is better...but on an engine that uses a supercharger as its method of forced induction, it doesnt really matter. unless you are running a really small pulley size but you need an intercooler to do that safely ANYWAYSSS.
i see bigger gains on alot of big v8 N/A cars or turbo cars.

the 1/4 mile estimator doesnt work.

It matters more than you think, especially because of the supercharger. Your number one goal is to avoid KR while making the most power as possible. To achieve this you want as cool as an air charge as possible and to do that you want to ensure that the air entering the supercharger is as cool as possible because the supercharger is going to heat up the air a lot.

The only time I'd say the difference would be minimal is if you're working with an inter cooled setup which will likely negate some of the gains of a cold air intake. On a non-intercooled setup though, you want the coolest air wherever you can get it.

[matt5112]

It matters more than you think, especially because of the supercharger. Your number one goal is to avoid KR while making the most power as possible. To achieve this you want as cool as an air charge as possible and to do that you want to ensure that the air entering the supercharger is as cool as possible because the supercharger is going to heat up the air a lot.

The only time I'd say the difference would be minimal is if you're working with an inter cooled setup which will likely negate some of the gains of a cold air intake. On a non-intercooled setup though, you want the coolest air wherever you can get it.

If you want to play the logic game: More air -> more likely to see KR.

Cooler air, more dense, more fuel, more power.

How is hot air better?

I think there is enough people saying hai's are better so people are just agreeing instead of trying to argue it.

My father has a m112 v6 stang and a very detailed tuner (led screen and computer) and he even did a open cone vs a cai and the cai performed better in every area vs a open cone.

science always wins vs a opinion...

Does he know that blower is too large for his engine?

[JoRoW99]

Open cone=louder whine=win

That being said I would run one of those fancy FWI tubes or make a box if I wasnt lazy/poor

[Mike Kopstain]

If you want to play the logic game: More air -> more likely to see KR.

There is no bigger contributor to knock than heat and all things being equal, if you're getting more air it's because it's denser which is because it's cooler so it's win win.

[SF9777]

Lets see a WAI for less that 70$ or a $300+ CAI, HMMM let me think do i want to gain 0.50HP more with the CAI or have 0.50 less HP but a cooler sound. Hard to choose.

[matt5112]

Cooler air -> More air -> More boost -> No effect on knock?

[Mike Kopstain]

Cooler air -> More air -> More boost -> No effect on knock?

The extra boost isn't what gives you knock; the extra heat is. This is why you can change nothing other than adding an intercooler, drop pulley sizes and see no knock. So yes, that's an accurate statement. All things equal, denser, cooler air is more desirable.

Otherwise we'd have to up pulley sizes in the winter when the air is cooler/ denser but we don't because the accompanying temperature change offsets the increase in air density (and more).

[Fivefingerdeathpunch]

Wut?

[Mike Kopstain]

Wut?

Was there a particular part you took issue with?

[Tuner-Extraordinaire]

Colder air can cause more boost as it is denser.

[matt5112]

Colder air can cause more boost as it is denser.

This guy has to pulley up in the winter.

Was there a particular part you took issue with?

More boost -> more heat -> More KR -> Reduced timing -> More Heat -> Warm passengers?