i wouldn't have believed it, but after i installed my cattman combo intake just now, i feel like i've lost 20hp. takeoff is very slow, then maybe because i'm an auto, it shifts at 3000rpm when i WOT. i remember with stock when i could go nearly red line before it shifted. i miss that. maybe i'll switch back to stock in the future or maybe cai. i'll probably keep my jwt pop charger on though.

 

http://forums.maxima.org/showthread....ght=FRANKENCAR

http://forums.maxima.org/showthread.php?t=418150

Read these two threads.

I'm currently running the stock mid pipe with a cone filter attached. Works well.

 

I went from injen style hot air intake to stock midpipe and cone to complete stock setup minus top of airbox and cone. Best one so far.

 

modify it mabe?
i seen many people cover the filter with tupper-ware... then run the stock air ram using some plastic piping to the tupperware container... also annother plastic pipe going from the tuperware to the fog light inlet for even more air.

this seems to help alot... mabe more so than the stock air box.

a cold air intake will probably help too... seeing that it will get more air than a filter in the hot trunk.

 

how bout hackin it if u want the soud...hack it with a k&N filter and i think theres a gain

 

No need to hack. Just remove the intake snorkel like I did and you're left with an opening on the side of the air box. That way you keep everything untouched so you can revert completely to stock if you want later.

 

how does that sound with the snorkel removed?

 

It's a little louder than stock. Not a whole lot louder, but for example...WOT is louder, and going up hills when the engine is under load it's noticeably louder. I have a stock exhaust, and when the intake growls it sounds like I have an exhaust. Overall, it's a pretty effective free mod. No loss in torque, either. Although I haven't noticed a gain in power, either. But for anyone who wants sound without sacrificing low end or the ability to return to stock, it's a great mod.

I'm currently considering doing what some have and removing the bottom half of the box and flipping the box upside down. Again, mostly for sound. Just to experiment. I won't run it like that come winter, though, obviously.

 

If you want noise go with aftermarket, to keep you power, stock is best. This has been covered many times (and then some).

 

i have done that, i removed the bottom half, didnt flip it tho, i just found a way to keep the filter on, again...sounds good at wot, and if i ever need to i can go bak to stock easily

 

?!?!?!?! Doesnt go over 3000RPM at WOT?!?! i think your car is very broken. I had a JWT pop charger like u did, and i was able to do same thing as stock intake, but louder. I didnt really feel a power loss, but i didnt feel any gain at all either. I didnt like the short ram intake, so i got a CAI using the JWT filter, now i can feel a gain over the stock and short ram, like it alot.

 

was i suppose to reset the ecu? and if so, how do i reset the ecu?

 

The answer to resetting the ECU is in the stickies. It is not necessary to reset it when changing the intake as the computer will adjust for it anyways.

Here is a little help:

http://forums.maxima.org/showthread.php?t=104931

which then leads you to:

http://vbxmaxima.8m.com/ecu.html

 

So you're basically sucking in only the extremely hot engine bay air....i wouldnt do that, just think about what your setup's doing...

 

Flipped box and a K&N is the way to go. It adds a few horsepower and gives a good growl. Although you may be sucking in hot air, if you looking for a cheap way to add HP then thats the way to go.

 

I like my Cold Air Intake that I have now. It's the stock one .

 

I'll stick with my Injen. Looks and sounds great.

 

Yes, I am sucking in hot engine bay air. However it's not as hot as you'd think...it's just an empty space above the transmission. Not the hottest part, though. I've not noticed any losses OR gains, so I'm leaving it as is.

 

Lol, I haven't been on the .org long and I've seen this covered a bunch of times. Autos lag already, and intakes make them lag even more. Removing the lower airbox makes it louder, but again it seemed to lag in the lower rpms, but picked up more towards redline. Its kinda hard to get the most out of an intake with an auto because they shift early, and im no engineer but i figure that when the engine is revving harder its also sucking more air in. And the auto doesn't really like reving all that much, these cars don't seem to. But its an old lady car so what are you gonna do...

 

yeah, auto lags, but to the point of me not being able to get above 3000 rpms? i can't accelerate worth ****. something's gotta be wrong.

 

well yeah thats obvious that something is broken, I was just stating the obvious, its what I do. Oh and this may be off subject but the max's cams seem to breathe the best between 3500 and 5000 anyway, just judging by the sound, but my ears are a little crazy, and so am I.

 

Injen is the the brand to go with. I have the RD1930 noticeable power increase as well with a deep sound when punching it. Very easy to install did it myself in a couple of hours and couldnt be happier.

 

couple of hours to install and injen? took me about 20 minutes.

 

Are you sure that the noticeable power increase is not just the growl? Even if you gain a few ponies, it is not much, and that will not really be noticeable on the butt dyno.

 

injen is ..

kodomo, is your ses light on? Did you check to see if the maf is plugged in? if you have then let me take a look at it..

 

You put it in or did not connect something because not being able to get over 3k isn't right ... you fukced up and are blaming the intake ... don't do that.

Pull your ECU codes.

 

kodomo,

Even if it is plugged in make sure that it is in all the way. This happened to me after I took the intake stuff apart, I put it back in. The car was then acting up. I looked under the hood and looked at the MAF. The plug was on there, then I pushed it a little more and heard the click. Turned the car on and that fixed the problem.

 

3000 rpms....are you sure your throttle body is opening all the way? Perhaps when you installed the intake, a clamp or something is preventing the throttle from completely opening.

 

It may take a while for the ECU to learn to like the new amount of Air, it might have registered more air and gone into a safer mode til it learnt the new constant airflow rate

 

After market intake + Auto = lag
There's no way around it. The ECU will adjust, but for the worse. The lag got worse and worse over time, for me.

 

yep. injen style su su su suuuucks. You like it because you paid $300 for it.

 

I think that may be why I love my flipped box so much.

I did a back-to-back a few nights ago and power wise I think they were about the same (maybe little more top end with the FB and little more low end with the stock box). The stock intake sound is so gutless though.

The main difference to me is that the flipped box will suffer when the car is running and stationary for a period of time where the stocker is more consistant.

The sound of the VQ30 is too good to silence in my eyes (or ears??)

 

This is the way to go

Stock setup minus the top of the airbox plus a popcharger. I set mine up like this and it is the best so far. Many others will vouch for it.

 

Cannot forget the VI in that pic ...

 

Any loss in power?

 

I've had this setup since I have had my car so I don't know any difference but I like it alot. I just need a new accordian because mine is cracked and will probably make a hole soon.

 

got my mechanic to look at it. nothing seemed to be wrong with the mid pipe. i think it was the hose that was messed up. anyways im reverting back to my stock resonator.

 

Would having an aftermarket mid-pipe hurt this setup or would it just be louder?

Is the surface area on the cone much greater than a K&N (or any) panel filter?

This is the setup a currently have:




and YES the K&N has been cleaned back to pink haha

 

It is dyno proven that the stock midpipe creates more power.

 

There has been ONE dyno done to back that theory up. It doesn't necessarily create more power, but the power band was smoother with less dips. And this was just one car.

http://forums.maxima.org/showthread....ght=FRANKENCAR


Gains/losses are minimal between diff intake setups. All depends on what you like (noise, looks, throttle response, etc). Pick one and live with it, or try them all out if you have the means. One of them will be to your liking over all else.