I was thinking of installing this. It is worth it? I already have a K&N filter. Wouldn't I be sucking in warm engine air with this POP charger? Does anyone have dyno info before and after? How about dyno info for just the K&N?

Thanks
Ray Nist

Also, has anyone removed the screen that is in the intake track? It seems this is a restriction.

 

I was thinking of installing this. It is worth it? I already have a K&N filter. Wouldn't I be sucking in warm engine air with this POP charger? Does anyone have dyno info before and after? How about dyno info for just the K&N?

Thanks
Ray Nist

Also, has anyone removed the screen that is in the intake track? It seems this is a restriction.

 

Try the OSCAI first.... it's cheap and you have nothing to lose with it. The K&N alone is good for a couple of hp...nothing major though. The MAF screen is there to smooth out air flow so it can be properly read by the MAF sensor. I would not remove that...

 

I'd leave the screen as it is a backup. Really for intake mods I would suggest either OSCAI, PRCAI or Supercharger. the cone intakes suck in too much hot air and you lose low end torque. They do look cool under your hood though.

 

I think the PRCAI is a waste of money, there isn't all that much air to suck from inside the fender unless you remove the fog light, and as far as the OSCAI goes, I think it is psychological HP. I had the PRCAI in my 96' and I was not impressed with it at all. Made a strange whistling noise. I am thinking of trying the cone intake myself. As far as the hot air is concerned, I think the stock intake suck in plenty of hot air also.

 

As far as hot air the stock intake has a scoop that gathers from outside the engine bay rather than sitting unshielded right next to the engine. OSCAI may be psychological but some have had .2 sec gains on their 1/4 mile.

 

Yeah, but the stock intake as like sucking air from a straw. And that radiator really heats up the scoop. I had the OSCAI on my car until yesterday, I decided it just wasn't making a difference. I live in L.A. and my car would detonate whenever it's hot, so I was looking for any way to get cooler air but so far, no luck. The car did stop detonating after I went and got the ECU reprogram at the dealer last week. But then it hasn't been that hot the past couple of days. Nothing comes cheap, the only way to really get an improvement is to spend the cash. i.e. Supercharger....

 

I dyno'd 6 HP higher with my former JWT.

My experience at the track:

Stock = 15.9
JWT = 15.47
OSCAI = 15.6
OSCAI 2.0= ? Will find out next week.

 

Those are really good numbers for an auto. Anyway, I'm not trying to make an arguement with the whole intake issue. I just want to make sure raynist sees both side of the coin. My car is slow anyways, just with my 17" Borbet Type M's alone, I'm moving like pond water. I want the cone intake for the sound not for HP.

 

Hey Guys,

I am new to this site, so I need some help with the lingo

CAI = cold air induction

OS and PR are they the manufacture's? What is their names?

Thanks
Ray

 

OS = "Ooglie" Stock. Basically the stock air intake with modifications.

PR = Place Racing. A true cold air intake system manufactured by Place Racing. Check out www.placeracing.com.

 

Does place racing make one for the Maxima? I went to thier site and did not see one.

Thanks
Ray

 

OSCAI is a DIY project, see my sig or the FAQ

PR = place racing, cattman (www.cattman.com) also makes one that is almost identical

 

I live in LA too, N1sMO, and my car does not detonate with the OSCAI installed. Of course, I also had to have all six of my coils replaced recently at Nissan's expense to stop the detonation. But that's another matter.

You indicate that you had your ECU reprogrammed at the dealer last week. Was that for the fuel-cut issue or something else?

 

Yes, call them or Cattman also makes one.

In my opinion:
------------------
The PR CAI(Cold Air INTAKE) requires you CUT a hole in the fender to reach the cooler air, incase your worried about a warranty. You don't get a "ram-air" effect, so the fog lights blocking direct air flow doesn't matter much. ONE benefit of a CAI(Place Racing/Cattman) over the POP is that you don't get hot under hood air during low speeds, but it doesn't matter much once your moving fast enough because the underhood air is exchanging with outside air. The SECOND benefit of a CAI is that the column of air in the long tube provides quick access to an unrestricted smooth volume of air, which helps torque and the MAF meter properly.

The POP is good for looks, noise, and "supposedly" a benefit on top-end. However, I have recently seen a post from a guy with OSACI and K&N who pulled a faster trap speed in the 1/4-mile on the same track and a hotter day(less performance). I was slightly faster for all other measurements except 60'(due to launch and maybe loss of torque from SI) and trap speed. Anyways, the benefit of the SI(Stillen Intake) over the stock setup are minimal if any. Nissan tuned the stock intake to provide a "wide-range" of horsepower/torque throughout the powerband, so just because you add a cone intake such as the SI or JWT, it doesn't mean you'll get an improvement in performance. I liked the look and some of the sounds my SI added, so the minimal if any gain isn't that much of a concern.

 

when the vehicle is in motion, the hot air moves towards the firewall/cowl so it is not a factor. Only when the car is idling will the conical filter heat soak.

 

That's what I thought I said. Oh well.

 

Oh, I didn't mean the car detonated because of the OSCAI, it was doing that long b4. I was hoping getting some cool air would cure the problem. Where did you get your car serviced and what did you tell them to get the ignition coils replaced? I'm pretty sure once the weather heats up again, my car will be back to it's knocking ways! But then it does it in the cold sometimes also.... :|

 

I'm going to be selling my JWT pop-charger soon.

it only has 2000 miles, its still very red, with no dirt/dust on it.

it doesnt have the original bracket (it didnt fit), so I have an ooglie version (ill give you that ) you can probably call courtesyparts for the part

anyway, i'm selling it for $75 w/o shipping.

email me if your interested.

 

I never read the other posts.. too lazy

 

And they replaced the paper filter with a K&N that is where the extra perfomance comes from IMO. I honestly can't see how the oscai is going to get cooler or more air to the engine. The stock scoop is right up front for cool air and there is only so much air that can come in those small diameter plastic tubing. PR CAI IMO is the way to go for sure. I have a Stillen POP now and routed a large 4" in diameter tube from below the splash guard up to blow directly on the Stillen intake area. Even without it if your driving at 60mph there will be tons of air flow coming in from underneath. I just routed that tube up to be sure I'm getting cooler air directly on it. I like the sound of the pop charger as well so I can hear my engine easily and shift without having to look at the tach.

 

What is the OSCAI? Is there a link to a site?

Thanks
Ray

 

check the sticky threads at the top of this forum...

 

The problem is that under WOT the amount of air intake could be higher. The 2nd tube helps, especially when it's forced air. The MAF tube seems to be sufficiently sized. So far my ET's shows that the OSCAI works, almost as well as my JWT. My JWT runs were under pristine conditions though. Cold that day.

 

From all the research I made.. I think the POP intake is the best, thats why I ordered it... I like what you did with the 4" pipe "PhatGuy".. You got any pics of it??? Since you had both "DooBall", which do you prefer the Sillen or the JWT???