07 Altima Fujita Intake finished (3.5SE)

[Importroller]

My take, the low end power hasnt really changed. but from 3500-4000+rpms, you can feel it accelerate faster over stock. Only thing I think it really needs is a shield to block some of the hot air that is around it.

And the guys from Fujita will be checking this thread from time to time to see your opinions, so please post them.

YouTube - 07 Nissan Altima Fujita Intake
Modified by Importroller at 3:42 AM 9/12/2007

[SHIFT_COUPE]

Looks like fairly nice hp gains. Sounds nice and looks like a nice product. A heatshield would definitely be a plus.

Nice work

Oh yea, price?

[Ormand]

It doesn't show up on Fujita's web site yet, so price is still a question. But a 5% HP gain, and a torque gain over a wide rpm range, is pretty good. On the dollars/hp scale, should be Ok, as long as they are in line with other products.

[missmedude]

Do they have one for a 2.5sl?

[audtatious]

I like the clamps. Nice touch.

Not too sure about the 5% gain number as that would equate to 13.5hp at the crank, something aftermarket intakes alone have not been able to prove on the dyno from what I have seen (on Maxima/Altima sedans with VQ35).

[AZhitman]

Nice piece, but it's sucking hot underhood air.

No way in hell is that giving a consistent 13.5 hp gain.

[PJB]

THIS MAY BE A DUMB QUESTION BUT I GOT AN E-MAIL FROM FUJITA THIS WEEK AND THEY SAID THAT THIS INTAKE WAS NOT AVAILABLE UNTIL AROUND OCTOBER SO HOW DID YOU COME ABOUT GETTING THIS. IS IT POSSIBLE TO GET ONE NOW? IF SO, POST THE INFORMATION, IT WOULD BE MUCH APPRECITED.

[SHIFT_COUPE]

He is sponsored by Fujita. They used his car to test and fit the new product.

Short ram intakes like this do pose the problem of ingesting the hot air from the engine therefore causing inconsistent HP. A heat shield would help with this.

It is my understanding that a cold air intake was not feasible because of lack of room? Am I correct?

[audtatious]

Same issues as with the Maxima and Altima Sedans as there are no real cold air intakes on the market for these vehicles. Heat sheilds may do something, but they are still redirecting the same under-hood air into the intake so it would be very minimal.

Now, don't take it that I am against aftermarket intakes because I'm not. I have just yet to see one actually give more than a few hp at the most.

[Ormand]

Nice piece, but it's sucking hot underhood air.

No way in hell is that giving a consistent 13.5 hp gain.

.

Well, there may be no way in hell, but in California, it's not that hard. The dyno sheets show an increase from 233 to 245. By my calculator, that's about 5%. The stock air intake syste is obviously VERY restrictive. Anyone who has looked at should be able to see that. There are test results on one of the Nissan forums that show very little temperature penalty from using a warm air intake, as long as the car is moving. And there have been tests of intakes on all kinds of cars published in various magazines, showing substantial HP gains from just an intake change. So, you can doubt all you want, but your doubts are completely contrary to the facts. Any one who has "yet to see one give more than a few hp" has oviously had his head up his... well, he hasn't looked around much.

[audtatious]

Yes, I have my head up my azz for I have no clue what other VQ35's have seen when adding aftermarket intakes. I've never seen dyno results comparing short-ram, mid-ram nor long-ram (Injen Style) intakes.

Of course, anything I speak of can be dismissed as it revolves around the Maxima and not the Altima. Until someone besides the manufacturer does a dyno comparisson, I will not believe a 12whp gain by simply putting in a short-ram intake.

[Ormand]

Yes, I have my head up my azz for I have no clue what other VQ35's have seen when adding aftermarket intakes. I've never seen dyno results comparing short-ram, mid-ram nor long-ram (Injen Style) intakes.

Of course, anything I speak of can be dismissed as it revolves around the Maxima and not the Altima. Until someone besides the manufacturer does a dyno comparisson, I will not believe a 12whp gain by simply putting in a short-ram intake.

There have been a lot of dyno results posted for short-ram, long-ram, etc. by a number of manufacturers. There have also been tests by a number of magazines, verifying the claims of those manufacturers. There have also been tests by individual owners, with dyno charts, posted on the internet. So, those tests would include "someone besides the manufacturer", it seems. But you choose to doubt:Multiple manufacturersMultiple magazines, andlMultiple ownersThat would be a pretty big conspiracy. So, you have never done much reading, nor have you done much web browsing. Yet you come onto this thread, and state "I will not believe". That seems to verify what I said about the location of your head. Sorry 'bout that. ,

[WDRacing]

There have been a lot of dyno results posted for short-ram, long-ram, etc. by a number of manufacturers. There have also been tests by a number of magazines, verifying the claims of those manufacturers. There have also been tests by individual owners, with dyno charts, posted on the internet. So, those tests would include "someone besides the manufacturer", it seems. But you choose to doubt:Multiple manufacturersMultiple magazines, andlMultiple ownersThat would be a pretty big conspiracy. So, you have never done much reading, nor have you done much web browsing. Yet you come onto this thread, and state "I will not believe". That seems to verify what I said about the location of your head. Sorry 'bout that. ,

Let's clear the air here a bit. First off Audatious is Nico's main Admin and web designer. To say he doesn't read through these forums as well as a metric ton of other websites is simply incorrect. Now that doesn't make him knowledgeable about automotive performance. But he is definitely no spring chicken either.

I however, am pretty much a genius when it comes to making things go fast. So you don't have to take my word for it, I have been a helicopter mechanic for 13 years and I am certified on several engine and drive systems ranging from turbo shaft engines making 250 horse power to engines making a tad over 5000. I have built my own turbo kit's from scratch, to include welding and fabricating all of the plumbing. I have designed and built my own alcohol and sub-injection systems and basically built everything from a CAI down to stitch welding the body for a track car.

The short ram intake is FAR from being an ideal design. It's actually undisputed fact that some systems, while looking good and performing well on a dyno with the hood open and an industrial fan blowing on them, actually hurt performance on the road in real world conditions. This is do to the lack of shielding around the pod filter itself and the inhalation of temps that can easily crest 400 degree's F on a hot day. I'm not saying that this is the case with the Fujita intake at all, I'm simply saying that there is always a good reason to be skeptical when I manufacturer claims anything about anything.

I can manipulate any test on any dyno to gain or lose a few horsepower. If I can do it, then an engineer certainly can.

Also, be careful which magazines you use as a reference. Most of them are simply run by people who have a degree in writing with almost no actual automotive background. Hence there need to use a friggin performance shop for ALL of there actual work. They have an uncanny knack for vomiting up info they "heard" from someone else and passing it off as there own.

IMHO, the intake you have looks like a quality piece to say the least. But I would definitely install some type of shielding as well as run some ducting that will bring outside air to the filter element.

WD

[audtatious]

Nah, I just like looking at my colon.

Dyno tests vary. ECU resets, humidity and temp changes, computer pre-learning, etc. all effect what a dyno will show. I've seen mid-pipe dyno's that claim 15hp only show .03hp increases. I've seen 350z Stillen dyno's that only show 3hp while the manufacturer claims more. My injen supposedly gives 9+ hp but dyno tests have shown that hacking the factory airbox will give better gains across the powerband.

I'd like to see someone do a GAB on the factory airbox to see what similar dyno results would show. I'll take free > $300 any day.

[AZhitman]

Close the hood, take it out on the street with the engine at operating temperature, and replicate the results.

I've build a butt-ton of cars, and I fully comprehend how "restrictive" Nissan's OEM intakes are.

However, I've yet to run across EVEN A REAL CAI that will add 5% on a car with less than 300hp.

Of course, we're not seeing ALL the dyno runs either - It's pretty common practice for parts manufacturers to take the "outlier" and publish that result, in order to impress the masses.

[Ormand]

As mentioned, there seem to be some people who don't get out much. Nissan Performance Magazine tested the NISMO air intake for the Altima SE-R, and they got a gain of 12.9 hp at peak, and 25.5 hp at 4800 rpm. Those figures are both over 5% for the SE-R, which only made about 218 hp before the intake was added. the interesting thing about measuring the increase in per cent, as opposed to actual hp, is that it allows for lower hp engines, like the Sentra, or Hondas, or other cars making well below 300 hp. And it is not unusual for PROFESSIONAL engine builders to get a 5% increase from changing out the air intake. But then, they probably build eight or ten butt-tons of cars, so they have more practice.

[WDRacing]

As mentioned, there seem to be some people who don't get out much.

What does that even mean? Because I didn't read a friggin comparison a magazine did on a worthless intake that I'm "out of the know".

Did you read what I wrote? On a dyno anyone can gain points here and there. Regardless...I'm not sure if you're meaning to across like an arrogant little prick, but you are. So if that's not your intention you may want to reconsider how you phrase things.

WD

[Ormand]

What that means is that there is plenty of evidence to refute the statement relative to the five per cent horsepower gain. Those of us who read and browse the web will know what I'm talking about. Don't mean to come across as arrogant, but I just have little tolerance for those who are proud of their ignorance. Just because you haven't seen something doesn't make it any less true. My point had both facts and logic to back it, which makes it somewhat less arrogant. Those who make claims contrary to facts, and contrary to logic, would seem to be the most arrogant.

[WDRacing]

Yeah...we don't browse the internet to often...LMAO. Keep on keeping on bro. My advice is to get a safety helmet soon.

[audtatious]

What that means is that there is plenty of evidence to refute the statement relative to the five per cent horsepower gain. Those of us who read and browse the web will know what I'm talking about. Don't mean to come across as arrogant, but I just have little tolerance for those who are proud of their ignorance. Just because you haven't seen something doesn't make it any less true. My point had both facts and logic to back it, which makes it somewhat less arrogant. Those who make claims contrary to facts, and contrary to logic, would seem to be the most arrogant.

No, those who come to a site with a "holier than thou" attitude and tell people they have their head up their azz is arrogant. You look in the mirror much?

I've seen articles. I've seen dyno stats. Some show the hp increases you state are normal while others do not. Just because you supposedly have not seen dyno results that do not equal what manufacturers claim means you are not wholly informed or simply choose to ignore them. Thus, I can call you ignorant as well.

FWIW, Nissan Performance Mag does multiple tests including cold engine tests. The cold engine tests are the ones which have shown the best HP gains. Per their Altima SE-R article "The three runs represent our baseline run and our next run was after installing the NISMO intake and making a dyno run with the engine cool for our highest numbers." Looking at their chart they show baseline at 216.91/228.35tq. Cold test result is 229.00/241.87tq. With the engine warm, the next test is 218.53/235.85tq. So, in the real world of daily driving, the intake gives an increase of 1.62hp and 7.5ft/lb tq. I would say that is quite a bit less than stellar. I assume you would disagree and keep stating the 12-15% increases.

[WDRacing]

No, those who come to a site with a "holier than thou" attitude and tell people they have their head up their azz is arrogant. You look in the mirror much?

I've seen articles. I've seen dyno stats. Some show the hp increases you state are normal while others do not. Just because you supposedly have not seen dyno results that do not equal what manufacturers claim means you are not wholly informed or simply choose to ignore them. Thus, I can call you ignorant as well.

FWIW, Nissan Performance Mag does multiple tests including cold engine tests. The cold engine tests are the ones which have shown the best HP gains. Per their Altima SE-R article "The three runs represent our baseline run and our next run was after installing the NISMO intake and making a dyno run with the engine cool for our highest numbers." Looking at their chart they show baseline at 216.91/228.35tq. Cold test result is 229.00/241.87tq. With the engine warm, the next test is 218.53/235.85tq. So, in the real world of daily driving, the intake gives an increase of 1.62hp and 7.5ft/lb tq. I would say that is quite a bit less than stellar. I assume you would disagree and keep stating the 12-15% increases.

NO NO NO...quit your lying!!!! You mean to tell me that a magazine did EXACTLY what we said they do and manipulate a dyno test? I don't believe it.

I sure wish we were more informed...then we could go around and vomit up cool stuff we read on the interweb to. In fact, I just read in a Published News Paper that Aliens have taken over the White House. Must be true...I read it.

WD

[audtatious]

I just feel more stupid for arguing with him after his biased views and what he deems as "intolerance".

Now, talk about tolerance, you have been VERY nice in this thread. You sick?

[SHIFT_COUPE]

Wow this thread took a left turn somewhere! Gotta love a good argument with a person of ignorance

While stock air boxes ARE restrictive. Putting a filter at the end of a tube IN THE ENGINE COMPARTMENT is going to use the hot air from the engine primarily. Thus canceling out some of the beneficialness. Its been proven that temperature is the main factor in HP gains on any sort of intake. Enough said. We are beating a dead horse here and I'm stating things that have already been said but your not listening anyway

[audtatious]

Guess he had enough

[WDRacing]

Guess he had enough

Nah, I think he finally realized that he sucks at life...if he was half the jerk I think he is, he'd come back in here and admit that he was wrong. But I'm not gonna hold my breath.

WD

[AZhitman]

And it is not unusual for PROFESSIONAL engine builders to get a 5% increase from changing out the air intake. But then, they probably build eight or ten butt-tons of cars, so they have more practice.

Ah.

There's the deal.

You have to be a PROFESSIONAL ENGINE BUILDER to install the intake, then you get the 15% gains.

Now it makes sense.

For what it's worth, every PROFESSIONAL I've ever paid to build something has returned me nothing but problems. My 400rwhp KA-T was built to an extent that no "professional" would dare attempt (meticulousness is rare when you bill customers by the hour)...

[Importroller]

Im taking the car to get redynoed soon. Im working on setting up a dyno day, so we will see what it is putting down on another dyno

[Ormand]

Ah.

There's the deal.

You have to be a PROFESSIONAL ENGINE BUILDER to install the intake, then you get the 15% gains.

Now it makes sense.

For what it's worth, every PROFESSIONAL I've ever paid to build something has returned me nothing but problems. My 400rwhp KA-T was built to an extent that no "professional" would dare attempt (meticulousness is rare when you bill customers by the hour)...

Guess you have a long history of dealing with jack legs and shade tree mechanics. Since you are in AZ, you might want to check out Nick Micale- he's a professional, and he could teach you some things, IF you have the ability to learn. Somewhere above, you changes 5% (five) into 15% (fifteen). Maybe a trick you learned in manipulating dyno pulls?Whatever. There have been thousands of tests of vehicles, everty thing from motorcycles to trucks, which have PROVED the advantage of an efficient intake. I have read many of them, and I also have the education and intelligence to understand them. The HP of an engine is a function of the DENSITY of the air into the cylinders. The density, in turn, is a function of both temperature, and PRESSURE. So, even though the Fujita takes in under hood air, it is so much less restrictive than the stock unit that the increase in PRESSURE offsets the potential increase in temp. (there's another thread where someone smart actually measured intake temp- and found the the WAI was not that bad) And if you geniuses had noticed, Nissan Performance, and other mags, have also done TRACK TESTS to confirm the increase in performance. But I guess they manipulate those, too?

[audtatious]

Nobody has stated that intakes do nothing. Best results with intakes usually are when used with exhaust mods and ECU tunes. You come on here stating your 5% rule and back it up by trying to intimidate members. Sorry, we are not buying some genericised Rule of Thumb that you have decided works for all vehicles. Your own link to the SE-R article showed primarily a torque increase once the car itself warmed up. Sure, the first test with the cold engine looked great assuming you can keep the engine cold, drive the car around in a shaded warehouse with the hood open and no heat radiating off blacktop.

I'm sorry you have to lower yourself to our hill-jack "head in azz" mentality levels. It must be quite painful stooping down that far. Maybe you should present yourself to some manufacturers and teach them a thing or two.

[WDRacing]

Guess you have a long history of dealing with jack legs and shade tree mechanics. Since you are in AZ, you might want to check out Nick Micale- he's a professional, and he could teach you some things, IF you have the ability to learn. Somewhere above, you changes 5% (five) into 15% (fifteen). Maybe a trick you learned in manipulating dyno pulls?Whatever. There have been thousands of tests of vehicles, everty thing from motorcycles to trucks, which have PROVED the advantage of an efficient intake. I have read many of them, and I also have the education and intelligence to understand them. The HP of an engine is a function of the DENSITY of the air into the cylinders. The density, in turn, is a function of both temperature, and PRESSURE. So, even though the Fujita takes in under hood air, it is so much less restrictive than the stock unit that the increase in PRESSURE offsets the potential increase in temp. (there's another thread where someone smart actually measured intake temp- and found the the WAI was not that bad) And if you geniuses had noticed, Nissan Performance, and other mags, have also done TRACK TESTS to confirm the increase in performance. But I guess they manipulate those, too?

Just go away dude...your logic and theory suck. Your single mindedness has placed you into a stupidity bubble that most blonde's I know don't even understand.

We/I are stating things from experience. In case you're unfamiliar with what that is, it means we have done this a few times.

But you keep on "reading" and vomiting up misleading info so that you can increase the size of your E pen15. Just do it on another forum.