Intake for Rogue

[philipa_240sx]

Welcome to the NICOClub Rogue Forums sjuare00!

All Rogue's share the same intake system so with the same modifications, you should be able to fit this in your Rogue.

Just be forewarned:

The intake shown above is for a +2007 Sentra SE-R. None of the brackets/mounts and the portion of pipe that goes into the fender fits the Rogue preoperly. Be prepared to modify things as Leo2005 did.

[sjuare00]

that wont be a problem... one more question though will it void any warranty or throw codes on the ecu?!?

[philipa_240sx]

I say the same to everyone, read the warranty booklet. Simply installing a part on your vehicle (even aftermarket) does not automatically void the warranty. However, if Nissan determines an aftermarket part or even an improperly installed OEM one causes damage, any repairs pertaining to that damage are not covered under warranty.

I do not believe Leo2005 has had any problems with his intake. Although I have not asked him if he needed to perform the idle air volume learning procedure. I'll wait for Leo2005 to respond...

[Leo2005]

I never had any codes with my intake but I did idle air volume learning procedure. The car is very responsive but I don't feel like the car got any faster. It is not that hard to do just follow next steps:
1. Perform "Accelerator Pedal Released Position Learning".
a. Make sure that accelerator pedal is fully released.
b. Turn ignition switch 'ON' and wait at least 2 seconds.
c. Turn ignition switch 'OFF' wait at least 10 seconds.
d. Turn ignition switch 'ON' and wait at least 2 seconds.
e. Turn ignition switch 'OFF' wait at least 10 seconds.
2. Perform "Throttle Valve Closed Position Learning" .
a. Make sure that accelerator pedal is fully released.
b. Turn ignition switch 'ON'.
c. Turn ignition switch 'OFF' wait at least 10 seconds.
Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch 'OFF' and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully released, turn ignition switch 'ON' and wait 3 seconds.
6. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turned ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL goes off.
9. Start engine and let it idle.
10. Wait 20 seconds.
11. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.
12. If idle speed and ignition timing are not within the specification, the result will be incomplete. In this case, more test needs to be done.

[philipa_240sx]

Thanks for replying Leo!

[ThandaPani]

Great info. Just wondering, I hear that K&N are great, as well as Injen for Air filter. But how are they superior to the other kind. Lets say I compare generic CAI to a K&N CAI, why buy K&N?

Now I know K&N specialize in air filters, but as far as the performance of the car, why would their CAI would be better?

[TonyN]

a cold air intake does just that, draws cold air from outside the engine bay. The one that Leo has is mounted behind the front bumper, getting much cooler air then if it was from inside the engine bay. Another plus is the piping itself, the typical aluminum pipe offers a smooth surface unlike the rubber OEM pipe which increase airflow velocity, also the typical cone type filter element has a larger surface area and allow more air to pass.
From my personal engine experience IMO it is worthless on cars such as ours, basic economy cars in general. Performance increase are close to nothing, only with a factory tuned sports car can you acutally feel and notice the change. IMO all an aftermarket intake on the Rogue does is allow the owner to say he has one and it makes more noise. I have use intakes in many cars in the past from Honda accords, 350z, Celica, and filter K&N drop-in style on cars such as Benz CLK500 (V8), C320 (V6), etc... I can tell you that it is not worth the price of admission, instead stick with the K&N drop-in type, not even for the performance but for the fact that you can clean and reuse it. I personally have a K&N drop-in for my Rogue, K&N drop-in for my Celica, and a full 4inch intake system for my Supra.
Just remember, the Rogue is an economy entry box, you will be hard pressed to get any real nominal performance gains from the engine.

[philipa_240sx]

Just remember, the Rogue is an economy entry box, you will be hard pressed to get any real nominal performance gains from the engine.

The QR25DE can be tuned, but it takes a bit of doing to get any significant benefits. Many mods like a CAI focus on increasing breath-ability of the motor at high rpm... not this motor's strong suit. This is partly due to the design Nissan chose for this motor... great low end torque at the expense of peak HP. A CAI alone cannot fix this, you need to dig deeper for a real power increase....

Look no further than the +2007 Sentra SE-R Spec-V:

To reach 200hp (a 30hp increase over the Rogue's QR25DE), Nissan created a special cylinder head, intake manifold, exhaust manifold, revised cams, and bumped the compression up. Finally, they added heavy duty connecting rods and fully counterweighted crank to handle the piston speeds and vibration created when they bumped the redline from 6200 to 6800rpm.

That's a lot of engine work for a 30hp gain!

As fore the CAI... I applaud guys like Leo for trying it. Although it may not add much, the simple fact of modifying the vehicle in the absence of any aftermarket parts is commendable. It's what being a car enthusiast is all about!

[ThandaPani]

Thanks....I inquired about this cause I was looking this option for both Rogue 2010 and Camry 2004 V6 that I own. Camry has around 100000 miles. So I was thinking about trying to add CAI. And while I do that, I was thinking about doing the same for Rogue. Leo's work looks really cool...

Do you think it will be worth it for a car that old and with that kinda mileage (Camry)....?

[takeshi]

Performance increase are close to nothing, only with a factory tuned sports car can you acutally feel and notice the change. IMO all an aftermarket intake on the Rogue does is allow the owner to say he has one and it makes more noise.

Even with sports cars it depends on the car. My S2000 is pretty much tweaked as much as possible from the factory without going forced induction. I have a CAI as I do like the sound and throttle response (and no heat bogging) but the CAI doesn't do anything for the S in terms of really improving performance.

Now I know K&N specialize in air filters, but as far as the performance of the car, why would their CAI would be better?

Can't say for certain but if you're in CA the K&N might be CARB legal whereas the ebay one might not be. You'd have to verify that if you're in CA though. I'd also suspect that Injen and K&N would have better quality and fit.

Do you think it will be worth it for a car that old and with that kinda mileage (Camry)....?

Worth is always highly subjective. I wouldn't stick a CAI on an old Camry. However, I am thinking of installing one on our Rogue. It's really your call to make. The potential advantages have been outlined above.

[TonyN]

The QR25DE can be tuned, but it takes a bit of doing to get any significant benefits.

That's a lot of engine work for a 30hp gain!

As fore the CAI... I applaud guys like Leo for trying it. Although it may not add much, the simple fact of modifying the vehicle in the absence of any aftermarket parts is commendable. It's what being a car enthusiast is all about!

you proved my point, 30bph, that is not even rwhp. Not worth it at all and if the point in adding a CAI on the QR25DE is to give it breathing room up top then there is something wrong, its an economy cross over suv! lol..
This is just my oppinion, people will do what they want, I just dont think it is worth the price for the performance gains.

Even with sports cars it depends on the car. My S2000 is pretty much tweaked as much as possible from the factory without going forced induction. I have a CAI as I do like the sound and throttle response (and no heat bogging) but the CAI doesn't do anything for the S in terms of really improving performance.

yes the S2k is tweaked very well from the factory, all an intake does is make it look nice.. been there and done that with the s2k..rather spend the money on a nice drop and wheels.

[ThandaPani]

Makes sense. Too bad that CAI doesn't do a whole lot to Rogue. I so wished it did. Specially performance wise. I am not too crazy about the sound improvement. I probably will just switch to K&N filter and forget about the CAI.

[Nick 568]

I'm wondering how a CAI would affect towing...
My thought is that it'd benefit me quite a bit since with the trailer I tow, at 65 mph, I'm at about 3000 rpms. But I've seen that a CAI can actually hurt when towing with bigger V8 engines (can't find much of anything in regards to I4's w/ CAI's and towing though)
Anyone have any thoughts on the matter?

[philipa_240sx]

I don't know how much HP you would net at 3000rpms. I have seen a few dyno charts from earlier QR25DE motors and there is maybe a 3-5hp gain by adding a CAI... mostly at the top end. Much of this is due to decreased intake resistance and perhaps some intake resonance. At 3000rpms, the effect will be far less.

The choice is yours should you decide to do this mod.

[Nick 568]

Hmmm...thanks for the information!

[philipa_240sx]

I will try and dig up some dyno plots for you Nick...

Firstly, The Rogue features a few changes with the 2nd gen QR25DE motor:

- Revised balance shaft unit
- Slight increase in compression
- Completely revised intake manifold that eliminates the secondary runner and butterfly valves.

So these dyno plots are not directly comparable with the B15 Sentra SE-R shown below, but it gives you an idea:

Here is an old Dyno Plot of the NPM B15 Sentra SE-R. This is the 1st generation QR25DE motor. Baseline is stock with cat back exhaust, the second run is with the AEM Cold Air Intake.

Gain: 3.2 hp and 2.3 ft-lb



Total gains (CAI + exhaust) vs. the stock car:

6.12 hp and 5.61 ft-lb

You can see that much of the gains occur above 3000rpm and peaks around 5500rpm. Low rpm torque also drops off slightly compared to stock.

Dyno's from NPM's earlier Spec-V project show similar results. Baseline is the stock motor with a Hotshot header as compared to header + CAI:

Total Gains: 4 hp and 7.8 ft-lb.

Sorry, I could not find a usable link for this one.

[Nick 568]

Wow, thanks for the great information, Philipa! Looks like it's probably not worth it for the most part. Still may end up trying it out to see just what the full effects are when towing.

[takeshi]

Gains like that are negligible. You also need to consider the margin of error in the measurements.

[Outdoor14]

Only reason I installed a K&N air filter is the Walmart paper version of this filter is 8 dollars and I change every time I rotate tires, 5000 miles. I will save money after the first year. Dont tell me I'm wrong I know where to buy K&N filters for $40.00.

[TaiLuu]

Cotton gauze filter won't filter air as well so, that means more butterfly cleaning and early oil changes.
Cool air is good for performance but bad for gas mileage.
So add up the cost over the years and DIY labor and see if its worth it.

[molocinco5]

im curious for myself too. Is it worth putting an intake system into the rogue, and does it require a lot of work? Cause if it requires taking the bumper out then theres no point in me putting one in. And does anyone know why nobody made an intake system for a rogue?

[ImStricken06]

i hate to be a downer, but intakes alone are not worth their money. for $300+, its simply not going to yield the results. its best to simply drop in a "pop-charger" or a higher performance air filter and call it a day. the only time i would add an intake, is when you have so much other work (along with a tune to your ecu) and the higher cooler volume of air can make a fraction of a difference in your quarter mile time / dyno charts. and anyone in the tuner business knows a fraction of a section is enough to make or break a car in a race and that fraction of a second is worth tearing the whole engine apart or spending thousands. - but in an average car like the rogue, in my opinion; its simply not worth it. I'd take the $300 and buy a cool new accessory or tools that i can actually use.