[Jade300C]

The LX Forums guys and gal, had a Cold Air Intake test in Sacramento CA
Today. All the big names(for the Hemi) in Air Intakes were tested.
We all had a great afternoon. My C was the only one there, the rest being Magnums. One w/ a GS super charger. Watch this forum for the results, And a bunch of videos.
We even had a guy drive is R/T from Nebraska for this!


http://www.lxforums.com/board/showthread.php?t=12197


:banana:


J

 

[HEMMISSEY]

it didn't say what brand won in the link.. can you give us a clue since you were there? :wink1: the blown magnum, it had to be OBIWAN btw.. :silly:

 

[goddardzilla]

CoolVanilla the guy who organised the whole shootoff - kudos to him - posted a brief but important statement

In terms of 1/4 mile at the track, thanks to the very skillful driving talents of our very own gotls1 (wow that lady can drive!!) we had virtually identical times of 14.6x for stock and the Mopar (we didn't test any others... I'll explain all tomorrow).

So there you go. We spent all day discovering that our stock air intakes are really well designed pieces of equipment. Pretty amazing day...

That's been my position all along - he is promising a full writeup today

Zilla

 

[fogey]

Mine too. I bet stock intake made the most torque.


Fogey--- Magnum RT

 

[maneval69]

The only problem with measuring torque is you can't get dyno readings under 3200-3400rpm on the 05 models. I hope to see some 06 cars do pulls starting at 2000 rpm. That way we can see the bottom of the torque curve.
The only reasons you could loss power from an intake change before the throttle body's
1- make the intake more restrictive
2- the A/F ratio is leaned out and causes timing adjustments to stop spark knock.
Well the only two I can think of.

 

[C-Man]

Here's CVs writeup

http://www.lxforums.com/board/showthread.php?t=14140

 

[7MI SMIL]

Ouch!!!! I'm sorta glad I haven't made a choice. My K&N drop in (which I put in all my vehicles) seems to do OK. Guess I'll just stay with it or go for "looks".That Typhoon looks pretty cool.............

 

[Russ]

Not suprising. As I posted 2 weeks ago, seen no measurable performance gain (1/4 mile) with the Volant or the K & N Typhoon. Did see over .2 with the Borla.

Do have the K&N drop in.

 

[Cruznit]

HMmm...wonder why the manufactors of all these intakes are claiming 18-20hp increases, looks like a Scam to me, no differences from the stock intake, guess it isn't as restrictive as it looks. I'll keep my Airaid because I'am installing the headers & already have the Magna-flows, maybe it helps with the bigger tubing. I'm pissed at all these falsey claims!!!

 

[[email protected]]

HMmm...wonder why the manufactors of all these intakes are claiming 18-20hp increases, looks like a Scam to me, no differences from the stock intake, guess it isn't as restrictive as it looks. I'll keep my Airaid because I'am installing the headers & already have the Magna-flows, maybe it helps with the bigger tubing. I'm pissed at all these falsey claims!!!

I doubt you will see 18-20 increases on ANY car just from a CAI. Maybe with supporting mods (exhaust, turbo, and intercooler), you might see a difference between stock air-box and a CAI. But honestly, its usually just for looks, and that cool sound (on a turbo atleast!!!).

 

[glhs837]

Can't remember where, but one of the big mags did an article about dynos. They interview Steve Dinan. HE showed them how just by putting a one regular fan in front, he gained a chunk of power, say +15. Then he put the 10K uber-fan, more of a turbine really and went a bunch higher. After that, he mentioned he was building a climate controlled, 100K test cell, which still wasn't close to the facilities the BMW uses.


The connection is that I never trust any vendor dyno, its too easy to tweak stuff. Before dyno, no fan, car heatsoaked. After dyno, after cooldown, big fan.

 

[II kings 9:20]

I have the Volant mainly for "sound", like an old 4 barrel opening up. The stock intake is indeed very good, takes in cool air from behind the left front headlight and does not appear to be restrictive.

 

[Dutch]

I doubt you will see 18-20 increases on ANY car just from a CAI. Maybe with supporting mods (exhaust, turbo, and intercooler), you might see a difference between stock air-box and a CAI. But honestly, its usually just for looks, and that cool sound (on a turbo atleast!!!).

It depends on how restrictive the stock air box is. On my Lincoln LS, the stock air tubing is just plain silly. The air travelling to the engine actually reverses direction three times on the way to the intake manifold. Starting at the tubing into the air box, there are bends of 90*, 180*, 180*, 90*, and 90*. These cars do get about a 15 hp increase at the rear wheels from a CAI, but they are also a pretty extreme example of restrictive factory design.

 

[HEMMISSEY]

i looked on the site, and there where no dyno graphs available? If there were any, can someone post it up? thanks :silly:

 

[StarJack]

I have the Volant mainly for "sound", like an old 4 barrel opening up.

Ditto on the sound and a great comparison w/ the 4bbl. I went with the Mopar CAI and the sound is amazing. Somewhere I read their claim was 7-10 HP increase. 7 sounds more realistic, and that would be a 2% increase, hard to measure that small a gain consistently in the 1/4. The catch 22 is that I've lost about 2 MPG in the city (17 to 15) because I can't resist 'clearing her throat' from time to time! :biggrin:

 

[[email protected]]

Ditto on the sound and a great comparison w/ the 4bbl. I went with the Mopar CAI and the sound is amazing. Somewhere I read their claim was 7-10 HP increase. 7 sounds more realistic, and that would be a 2% increase, hard to measure that small a gain consistently in the 1/4. The catch 22 is that I've lost about 2 MPG in the city (17 to 15) because I can't resist 'clearing her throat' from time to time! :biggrin:

Tell me about it! My MPG in my SRT took a killing as soon as I put a Blow off Valve and a CAI on the car...

vrroooooommmmm...............PSHHHHHHHHH

 

[slk320]

Most of us suspected that no real noticeable gains are to be had with CAI, however most of us did it for the cool "PShhhh" sounds and engine bay jewelry; all good and valid reasons to get this mod.

 

[5point7]

HP gains are going to be minimal with a CAI, so if you are buying it to increase your HP, your gains will be minimal..especially in the real world. I read the posts on the other forum about "the great faceoff", and it's about what I expected.

I bought the Volant for the sound, and couldn't be happier with it. Even if it was 10hp increase...who cares?!??! I've seen stickers or emblems that add 10hp!! lol

There are easily differences of at least 10hp between each motor built by DC....

As for mine? Well, it definately sounds better with the Borla and Volant than stock...but if anyone has a Zoomer and thinks its too loud, I'll trade my Borla for it!

 

[maneval69]

all though the horsepower numbers did not change much, the A/F ratio shows the real story.
I posted this theory on the LXForum. What do you guys think.

12.5-13.5:1 is optimal for power. ON all test the A/F was under 12:1.

I averaged each intakes A/F at peak horsepower and the numbers do show that some intakes are better than others.

Here are the numbers ranked by A/F ratio.

DI ----11.53:1

360----11.48:1

Vol-r--11.44:1

Stock--11.37:1

AC-----11.35:1

mopar--11.34:1

open---10.84:1

The lower the number the richer the mix. This computer adjust fuel based on Manifold vacuum.

The less restrictive the intake is the lower the vacuum. Because the exhaust back pressure has not change. The cylinder can only evacuate at the same rate, therefore, the manifold vacuum drops.

The computer sees the lower vacuum as a need for more fuel. But its fuel map is calculated on the stock intake restriction and the stock exhaust back pressure. This causes the AF mix to get richer.
So unless the exhaust allows the backpressure to reduce to bring the manifold vacuum up you are just moving the A/f ratio further away form optimal.

I am still working on why my dyno results from "stock box to open air" showed 18hp gain. But I do know that my A/F went form 11.7:1 with the stock to 12:1 open air. I did not reset the computer so may be the computer defaults to rich and learns how to lean the mixture over time.(The computer was reset between each dyno run.)

So, by my theory the open air is the least restrictive, Mopar is next,then the Air Charger, then stock, then Volant, then the 360,and K&N drop-in is the most restrictive at the rpm of peak horsepower.

Keep in mind that these A/F readings where taken at around 5200 rpm. So, at different rpm's the order could change.

What do you think?

 

[Black Betty]

I'm new to all this, but wouldn't the ram air effect of the Volant at speed
be something that is not taken in account with the dyno #'s.