K&N Air Intake = 53 more HP!!!!!

[rjdmmfl1]

LOL... It must be true because NICO has a giant banner advertising it! Saw this as one of the advertisements flashing across the top of the screen... that's just wrong Nico mods... you shouldn't support that type of advertising! lol

[windex]

:cough: money :cough:

[adidas2go]

[08Coupe]

I think they show a GT500, I know 04 cobras with a intake and tune 50rwhp was possible. So I guess they are showing best 'possible" gains

[nismofool]

too bad they wont have an intake ready for us for awhile..i've been hitting them up for awhile, same response everytime, just have to wait..its on their list, just towards teh bottom, and they have to get rid of the top 60-70 cars in order to get to our cars..

[08Coupe]

Honestly they are into performance..So tuneable cars need performance intakes (cars with supporting mods ect.) On the coupe it is little more then noise and bling so probably why they aren't jumping on it.

[TheBourneAltimatum]

Fire Fox + adblock = FTW!!!!!

[rjdmmfl1]

Fire Fox + adblock = FTW!!!!!

?????? The ad was built into the page, not a pop up!

[Cali 2 Balti G]

Honestly they are into performance..So tuneable cars need performance intakes (cars with supporting mods ect.) On the coupe it is little more then noise and bling so probably why they aren't jumping on it.

I asked a related question on another thread - it seems that with the position of the altima WAI -toward the rear of the engine bay - that the flow of the aftermarket WAI intakes would not increase much.

It would be interesting to get Stillen's insight on the performance gains for intakes in general and in this case the Altima.

[Cali 2 Balti G]

They advertise 10-11hp for the G35.

[rjdmmfl1]

They advertise 10-11hp for the G35.

I feel you Cali, and that seems more reasonable... but 53hp from an intake???? Just keep checking out the banner at the top, it'll eventually show it!

[kyle@stillen]

Cali makes a great point...

On some cars like the G35 it is possible to completely isolate the air charge and find gains of 10+ HP. Also with a longer intake tract we can find more areas to improve upon. For instance on the G35 we have a new, urethane cold air box, K&N filter, larger intake pipe, replacement Z-tube to remove the excess intake pipe and smooth out the airflow. On the Altima Coupe we don't have as much room to work with. However, a larger filter, larger intake pipe and improved airflow path can help a lot with power gains.

I have tested some vehicles where gains were just not possible. In that case, we don't make anything.

[TheBourneAltimatum]

?????? The ad was built into the page, not a pop up!

yes i know..i see NO ADS on my computer. NOTHING...adblock has nothing to do with popups.... https://addons.mozilla.org/en-.../1865

[Datalux]

I feel you Cali, and that seems more reasonable... but 53hp from an intake???? Just keep checking out the banner at the top, it'll eventually show it!

Sure - there are some really restrictive OE air boxes out there and huge gains are possible even with a WAI. However there are trade-offs like increased engine noise and lower MPG for those gains. Alot of the diesel applications get pretty big gains as well as V8's. The 4 and 6 cyl. applications don't see nearly as much since your looking at much lower HP. Consider that a 7% increase in HP for a vehicle the puts out 300 HP is 21 HP, but on a vehicle that only has 150 HP, 7% is only 9 HP. ....doesn't look nearly as impressive does it I say support that advertising if it's true....

Edit: The application with the 53 HP gain was the 2007 Ford Shelby Mustang, it has 413 BHP stock. http://www.kandn.com/dynocharts/63-2571.pdf

Modified by Datalux at 1:51 PM 4/10/2008
Modified by Datalux at 3:52 PM 4/11/2008

[rjdmmfl1]

Sure - there are some really restrictive OE air boxes out there and huge gains are possible even with a WAI. However there are trade-offs like increased engine noise and lower MPG for thoes gains. Alot of the diesel applications get pretty big gains as well as V8's. The 4 and 6 cyl. applications don't see nearly as much since your looking at much lower HP. Consider that a 7% increase in HP for a vehicle the puts out 300 HP is 21 HP, but on a vehicle that only has 150 HP, 7% is only 9 HP. ....doesn't look nearly as impressive does it I say support that advertising if it's true....

Edit: The application with the 53 HP gain was the 2007 Ford Shelby Mustang, it has 413 BHP stock. http://www.kandn.com/dynocharts/63-2571.pdf

Modified by Datalux at 1:51 PM 4/10/2008

I don't trust any dyno numbers regarding intakes.... because there's just no way in hell the 12+ whp that Injen claims is really occuring for our Altimas... I just don't believe it, and shame on you or anyone else if they believe they will get 17-18 HP (~12 whp) gains from a WAI!

I could see larger gains happening on the Shelby... but again, 53 hp at the wheels is somwhere like 65 HP at the crank... from a WAI??

Nope, never, not gonna happen... sorry, I was born yesterday, but I stayed up and studied all night long!

[adidas2go]

some companies doctor the temperature and altitude conditions to gather the greatest gains during dyno runs. Drop the altitude to -1500 ft and the temp to 40 degrees and I bet you get the gains they claim. However, this isn't the real world....

[08Coupe]

WAI show nice gains on a dyno with the hood open and a big fan

[Datalux]

I understand where everyone coming from but given that dynos are the only way to measure BHP, until someone can provide data to the contrary it's all we have to go by unless you think companies should post track times instead. I know other companies that don't doctor their dyno figures and use industry standard SAE Smoothing which basically calculates the same altitude, temperature, etc. for every run on every vehicle regardless of the variables. Additionally some companies only post average gains from several dyno runs and several vehicles and specifically don't post the biggest gains because they believe it's more honest to show the consumer what is typical rather then some fluke or one time acheivement.

I agree with the big fan and open hood comment, I would be very interested to see what various dyno runs would look like if you could calculate the air velocity entering the air box or WAI under normal driving conditions with something like an anemometer and then duplicate the same air flow more accurately on the dyno. As it stands they are trying to duplicate that with the fans, etc, but I'm not convinced that it is being done scientifically on a vehicle by vehicle basis. However this is really related more to the cooling effect on the engine then the volume of air being consumed, I don't think that a fan blowing on your filter is "forcing" the engine to "induct" more air than it normally would, otherwise everyone would be putting fans under their hood rather then paying thousands of dollars for a turbo or supercharger.

Modified by Datalux at 2:59 PM 4/11/2008
Modified by Datalux at 3:48 PM 4/11/2008

[ADKSaad1387]

hm, i dont know why, for some reason i remember seeing two intakes in the mustangs at the auto show.....so maybe dual intakes in the best possible conditions is what they are advertising?

anyone else see dual intakes?

[Datalux]

hm, i dont know why, for some reason i remember seeing two intakes in the mustangs at the auto show.....so maybe dual intakes in the best possible conditions is what they are advertising?

anyone else see dual intakes?

Looks like this...??? http://www.knfilters.com/searc...-2571

[ADKSaad1387]

here is a G35's http://z.about.com/d/cars/1/0/...e.jpglooks to me like there are two air filters....therefore two intakes?

[xeene]

hm, i dont know why, for some reason i remember seeing two intakes in the mustangs at the auto show.....so maybe dual intakes in the best possible conditions is what they are advertising?

anyone else see dual intakes?

nope, it has only one intake