I have the FrankenBerk right now, but I was wondering if the Injen would even make a difference in a climate where it is over 90 degrees 300 days out of the year.

Should I just stick with what I have? I don't see how sucking in 100 degree heat would make that big of a difference than what is under my hood....

 

IIRC, underhood temperatures go as high at 135 degrees - probably more - in a 100 degree day.

That translates a lot into further performance degradation.

 

well i live in TX and it's pretty hot here also...
but i'm going to go with CAI b/c the air outside can't be hotter then under the hood no matter how hot it gets outside....

 

The INJEN is going to better than ANY WAI setup ESPECIALLY in the hot Arizona desert, but the PR CAI is a better design. The PR filter location is protected(read gets less dirt/crap on it, therefore needs fewer cleanings and minimizes the chances of water sprayed on the filter) and will also net more hp/tq because it's drawing cooler air from infront of the vehicle that's NOT flowing through the radiator. The hp/tq difference is NOT going to show on a dyno, but will on the road.

I'm debating the INJEN vs. PR CAI myself, it's just down to whether or not I'm willing to cut the hole.





Also, anyone find a K&N filter that fits the INJEN?

 

I think the Apex'i filter will fit... it costs a quite a bit more than a K&N though....

 

How much does the Apex'i cost?

I haven't seen one in person, but according to my rice mags, they are the bomb.

 

Yea ive tried three different filters and they all fit just fine. I'm running a generic K&N oil with apexi design type of filter and it works great. I did drop my time by 2 tenths with my injen after frankencar at firebird.

 

http://www.berktuning.com/components.html

he has the filter and stuff you need to mount it on the tubing....

 

Thanks! I should have already knew that though.

 

Okay, okay...here's one for ya.....

How hard would it be to make my own CAI? Auto Zone sells the curved piping for Hondas, etc.

I would keep my Frankencar midpipe, but just make an extension pipe run down and attach the berk filter.....

I have an extra MAF adapter, so I could just attach one adapter to each end of the Auto Zone pipe....

 

Wouldnt see why it wouldnt work. Someone recently just made their own injen style CAI recently and they didnt have problems. They didnt use actual piping either. Ill see if i can find it...

 

I believe CAI does make a difference even on 90 F + regions. It gets very very in the engine bay. I was at a track couple weeks ago, and it wsa 90+ degrees, and another 98Max with PRCAI did better than mine. (I had hybrid that day). We were gonna do more runs, but it got rained out.

 

Finally, someone else who realizes that the Injen is not a true CAI. I've mentioned this a few times, once it got completely passed over and the once someone said that because it is above the splash guard, it is a true CAI.

If the Injen is receiving air that has flown through the radiator (it also resides in the engine compartment), it is getting air that has been warmed up by the engine (read: not true CAI).

BTW, I'm the guy that made an "Injen concept by Home Depot" intake.
Here's pics:
view 1
view 2
view 3

My comments in the original thread (about halfway down)

 

Rightn it was you, thanks, btw your intake looks good. How does it perform?

 

True, true. Your NOT the only one though. Just ask Cattmans' opinion on the INJEN.

The INJEN gets an A++ for simplicity, but it doesn't score too well compared to the PR CAI, IMO.

 

Thanks. I guess it performs alright. It has the ROAR and silence that everyone is raving about. It pulls to about 6200-6300, throttle response is good (when it's cool). Even though I have the heat wrap on, heat still does affect the throttle response (of course, after my car has been still for 10 minutes, idling, with the A/C on, in 95 degree weather).

I just ran a 14.65 with it on. Can't be too bad.

 

Injen is NOT a true CAI. It looks awesome. Sounds a bit quieter than the Franken. I dont see a difference in performance. I have driven 3 cars with it. I think that if you like it you should get it...If you feel it works for you, then go for it. I would go with a Franken or Berk , in my opinion .

 

I'm just gonna stick with the ol FrankenBerk for now..... I'm hoping emax has success with that Z manifold mod....

 

How's that going to help?

 

There is more power to be made on other mods.. I ran a stock airbox on my 89 LX Mustang running 12's.... We are just so **** about intakes, because there are not many mods out for our cars !

 

What do you mean? I'll buy the manifold conversion too if he nets 10 hp or so...... Although he has a 2K2....are our parts different?

 

I'm NOT trying to jinx Ethans' project, but I'd be VERY VERY surprised if it bolted on without some healthy modifications. Nothing he can't handle of course, but more than I'd probably be willing to do for 10hp. We did get lucky with the exhaust manifolds and HIDs, so I wouldn't put it past Nissan to use some common parts between the Altima, 350Z, G35, and maybe even the 2K2-2K3 Maximas.

I'm not going to say it won't fit on our VQ30DE-K yet, but the chances would be very slim.

The reason I feel it's even more of a lost cause for our cars is that the variable intake manifold is providing ENOUGH air, so that our dyno horsepower numbers rise consistently all the way to the 6400rpm redline even with all the bolt-ons. Unless we had forced induction or a raised Rev-limiter, I don't think the -K engines are restricted as the VQ35DE is on the top end.

Also, in the latest Sport Compact Car, they dynoed the 350Z and the hp level out with ~240hp at ~5800rpm, held to 6100-6200rpm, peaked at 244hp at ~6300rpm, before plumeting to the 6500rpm redline. Yes, those numbers are higher than the Maxima, but until I see the dynos I'm still not holding my breath.

I'm EXTREMELY interested in how it turns out though.

 

The pipe on the Injen CAI gets very hot after you drive around for awhile. I would recommend wrapping it with header insulator or other thermal wrap to keep it cooler. When I say hot I mean too hot to touch!

Jesse

 

I obviously agree with the CAI point on the Injen. I think all intake differences are marginal, especially when the weather gets hot.

While I also agree on your point about going with what you like, I had the Berk and realized a 12 ft/lb peak loss in torque when I dyno'ed. I went back to stock until I found the parts for my homemade intake. No sense in spending $200+ for an intake when I don't know how it is going to perform on MY car. Especially when I can roughly duplicate it for a fraction of the cost.

 

Exactly why I have heat wrap on mine....although it's not an Injen. On a cool night, I can put my hand on the intake manifold and not burn off a layer of skin!

 

Now you're going to have to explain that one to me, IceY2K1.

Discretion is the better part of valor, particularly if your warranty is still in force.

 

Finally... a PR CAI user can reply. I had the PRCAI installed for a while, and loved its performance. I then blew a MAF - it's a long story, but it WASN'T caused by the PRCAI. So I've been off the PRCAI and back to stock for a while. Until today... I finally put it back in. I unplugged the battery for 36 hours to clear the ECU's memory of idle air flow, accelerator pedal position, etc. I then followed the Nissan ESM procedure for teaching the ECU the accelerator pedal position, the throttle body position, and finally the idle air speed readings (this is PART of what caused the MAF to die, the other part was a Nissan tech's fault). Once it was all done, I let the car run for about 10 mins while throttling the car up to various points, without going over 3800 RPMs.

I said all of that to say... the hole ISN'T as big a deal as you think it is. You get a 3.5" hole saw and a hole saw drill bit, mark your hole according to the PRCAI instructions, and DRILL. It took like 1.5 mins to drill the hole. And if you're REALLY concerned and MUST know the truth, the fuse box immediately to the driver's side of the battery covers the hole in case you took out the CAI. The dealer replaced my MAF under warranty and never said anything about the hole.

As for a difference on the dyno, I dunno. I gotta dyno it soon. But as for the "butt-dyno", there is definitely a difference between stock and it. Now if someone who has a 2002-2003 with the injen in the Orlando, FL area, we can swap cars for a drive and let our "butt-dyno" tell you if there's a difference. Until then, go with whatever you are comfortable with.

Someone stole a penny, so it's only my $0.01 worth now.

 

I was surfing their website recently, would their stage 4 intake be considered CAI????


I'm trying to decide if I should wait until they come out with stage 4 before buying the intake....since I keep hearing that the engine air is very performance degrading.....

anythoughts???