ganjahbaby7

Can anyone help me with links to getting a cold air intake for my 1990 nissan maxima?....................I've seen for 1994 but but looks like it was a DOHC and mine is the SOHC(GXE),was wondering if there was any compatability.

Jeff92se

iTrader: (82)

Contact Piggie Racing

j/k scroll down the threads

internetautomar

iTrader: (30)

oooh that was bad

92SE_Dave

Cold air intake just means intake from not in front of the motor so that it doesn't get pre-heated by the motor and radiator, and the Maxima already has this stock.

Anything advertised as cold air intake is probably a waste of money. The only real sort of power adder would be a forced air intake or a larger throttle body, and the forced air intake is only effective once you are moving pretty fast, meant more for racing.

Jeff92se

iTrader: (82)

Actually since the plastic airbox and filter sit in the hot engine bay, it heats up the air.

When I drive my car, park and then open the hood, all my CAI piping is cold to the touch. Try touching your airbox etc.. next time.

Then again I have used both but what do I know

Cliff Clavin

iTrader: (11)

The stock one on the VE doesn't actually pull in cold air. If you take it apart, notice the tube running down is solid. I think the biggest factor is going to be bringing in more air. The stock one is somewhat restrictive compared to even a pop charger.

For the VG, I think there is a way to modify a certain ebay one designed for accords. I recommend donating some money and doing a search. I am sure there are guys with VG intakes.

One of these days I am going to finish installing the one you made, Jeff

I was holding out to buy some silicon red couplers from Berk Technologies, I have just been too busy with other stuff. I have only driven the Maxima about 20 miles in the last three weeks.

92SE_Dave

How does the CAI piping route from air pick-up to intake manifold ?

Is there any forced air induction ?

Is there noticeable performance gains ?

How much does it cost ?

Jeff92se

iTrader: (82)

Directly below the D-side headlight

Nope. Any area that will allow this will probably allow water to go there too. Not safe. Unless you do some type of muscle car cowl induction thing. Hood scoop anyone?

While it's cold? Not really. But while it's hot, the peformance doesn't suffer nearly as much

I custom made mine and made some for a few others.

You can buy one made by Cattman, Warpspeed or some cheap ebay CAIs. But you have to cut a hole near your battery tray. I didn't like doing that as the filter gets dirty from being so close to the wheel/fender liner. Mine stays way cleaner

92SE_Dave

But how does it route to the intake without coming close enough to the motor to be heated like the stock air box ?

btw Jeff... i think it's hilarious how you lock threads every time you get owned...

Jeff92se

iTrader: (82)

Any intake you have must route to the throttle body. But the filter is well away from the engine. Like I said, I drive open hood, touch pipes = cold

I don't care if you believe me or not. Do what you want.

Owned? Hardly. But why continue? Too easy to get you all worked up about a V8 that could put out a bit more than Nissan's v6. And alot less than Nissan's V8.

Leave it at that. Or donate $20 and we can argue in OT all day.

92SE_Dave

man you are touchy! I'm just asking serious questions about the cold air intake and your getting all up in a knot over it. i do believe most of what you say... obviously any intake must route to the throttle body.... that's why I was asking how it gets there without being preheated, since the routing of the stock intake is already about as far from the motor as possible.. but I see what you were probably trying to say (poorly...) that by moving the filter box further away it should theorertically help since the semi-stagnant air before the filter would not be exposed to as much heating.

i wasn't getting worked up.. i was stating facts and you were replying by changing the subject and eventually locking the thread... i very well may pay $20 as I like this site, I am a Maxima enthusiast, and would like to contribute to a site that has already given me many useful ideas (like KS bypasss for example) to help improve how my Maxima runs.

Cliff Clavin

iTrader: (11)

The air that comes in through Jeff's intake design is from the FRONT of the car and BELOW the engine. Where the stock intake is and where a pop charger intake sits, the air is warm, since it is near the TOP of the engine and is much closer to the rear. The warm air from the engine sits right there, minus what you get from that tiny little tube that runs up next to the battery, which can't bring in anywhere near the amount of cool air you can get by mounting a large cone filter down below.

Like Jeff said, the Place racing, Cattman and ebay CAIs also work by taking in air from lower (cooler), but they are more exposed to dirt from the wheel area. All do a much better job than the stock intake at bringing in cooler air than can be found directly inside the engine bay through the stock filter.

Also, the KS bypass should be used only as a temporary measure until you can replace the KS. I wouldn't risk ruining your engine on the chance that you get some crappy gas somewhere.

Josh

iTrader: (5)

firstly the semi-stagnate air that is pulled in is hardly stagnate (wouldn't the intake be choking for air if it were sealed?)at all since when you are driving there is constant air movement in every compartment,yes there is probably a temperature change when it comes in but not one that is terribly noticeable. also the proximity of the piping to engine and that causing the air to heat up quicker is based on the premise that the air is setting in the pipe for a duration long enough for its temperature to be raised a substantial amount(which it is not).

92SE_Dave

Yeah... thats sort of what I'm thinking... seems sort of like a waste of money.

Michael

iTrader: (21)

well I guess it just depends on how much you can find one for. I got mine for around $40 shipped and really like it. Mine is the kind that goes into the inner fender. I think the main thing about the CAI is the larger tubing which allows more air in.

I think I felt a small gain but its nothing major and may be just my imagination. I sounds really good though lol.

To me it wasnt a waste of money though. It looks 10 times better than the stock box (my CAI is polished aluminum) and also gets rid of all that junk so you have a little more room in the engine bay.

Josh

iTrader: (5)

yeah i would say that i also felt a small gain but more than anything the sound is the kicker. i also think that the larger piping might reduce the strain on the engine to suck in more air.

Jeff92se

iTrader: (82)

hehe. Nice intake. Thanks for the props on your page. I would normally agree but the airbox still gets pretty hot. I would think if the air inside the engine bay was always moving, the airbox and pipe wouldn't be warm/hot to the touch.

I know you experienced the same as me. Drive around and open the hood an touch the pipe. Alot colder. But let it sit, and then the pipes really heat up. So the first gulp of air is REALLY hot in hai or stock airbox.

Josh

iTrader: (5)

i'm just spitballing here but i think that maybe the reason that the stock intake box feels warmer is due to the material(plastic) and the fact that it does not dissapate the heat as easily as the the metal CAI does, i wonder if i were to open the box right after a drive and feel the inside if it would be cooler than the outside(act as an insulater perhapse?), also the walls of the cai may act as a quasi-heatsink with the air running over it as it is sucked into the engine, thus cooling the cai more and more as more air being sucked in?

Jeff92se

iTrader: (82)

Don't know. But I do know that when the rad fans are on, it just blows hot air everywhere and that's where the stock airbox is picking up it's air. How long have you had your cai done? I stopped selling these because I just knew everyone would just copy it. No biggie.

92SE_Dave

It's a risk I am willing, able and looking forward to taking. Hell I've been taking the risk for over a week and the results have been great. This is my long-term solution to the problem.

kcidmil

Working on that. I'm currently talking with NIN autosports about getting one made. The airbox is easy enough.

Josh

iTrader: (5)

i've had my cai done since about mid august. but i just recently painted and cleared it. i think that the rad fans dont play too big of a role becuase they intake tube for the stock box comes out to the side of them and since they are so close to the rad they pull out most of the hot air (originating from the rad)in the front(behind the grille) this leaves means that the other air that is up there is not quit as hot...tell me if this makes any sense:


i realize that warm air will still reach the intake but how much is the real question. i have some pretty cool temp sensor that we use here at school sometime i'll lay one out in the engine bay at diff. spots and see what the temp is at diff speeds and such.

Jeff92se

iTrader: (82)

I know when I had my head inside the engine bay and the fans turned on, I thought I was in an oven.

Wiking

CAI might have some edge from idle. But driving, its all CAI inside engine bay. Any performance edge is pure bs, sorry. Nobody can back up such arguments with measured facts - on the same vehicle in in equal measurments. Ambient temp inside engine bay is plus/minus one degree diffrence - OVER 30mph.

Anybody arguing this: PLEASE buy first few temp gauges, make measurments, build a table and represent here. I have done that with 10 sensor gauge...

There is a edge on high flow tubings/filters to stcok. BUT THAT IS NOT connected to CAI phenomena...

Full throttle airspeed nears sound speed, nothing can warm/cool air at that speed. Except huge intercoolers... Sorry boys.

Read my rotten brain opinion here: http://www.cardomain.com/memberpage/748507/2



.

Jeff92se

iTrader: (82)

So you have some dynos on that?

Wiking

WarMing: if one should be afraid of air warming on lesser airflow, one would block all heating (some 70kW) to the intake. THAT is the biggest waster in maxima when air temp is the question.

Scoops? Oops, nice, but thats all, like roses. If full throttle airspeed is 500 and scoop speed is 70, that works as a choke joke.

Heated air:



see: http://www.cardomain.com/memberpage/748507/8

Wiking

Who needs dyno vinyl hp????

All I need power WHILE DRIVING... make ROADtests 30-100mph.

Please. This ist the 100x time I explain this: DO DO DO the air temp measurements; then build THE temp TABLE OF 1 HOUR drive. Then talkabout it...

Josh

iTrader: (5)

wiking: i agree that more than anything the cai gives a advantage in the volume of air it supplies and when driving i think that the air in the engine would be constantly circulated thus lowering the temp.

Jeff: i understand about fealing the temp of the engine bay w/ the fan blowing and how hot it is however i dont know how much that would effect the air flowing through the airbox if its outer shell were designed to act as an insulator and hold the heat away from the airflow, i'll try to ask my chem prof. about his tomorrow and if it is plausable.

Wiking

All the the time all the forum mixes roses with hoses:

C-old

A-ir

I-ntake

COLD = COLD. Nothing to do with airflow. NOTHING to do with airflow. (All to do with temp and/or insulation from heat.)

Now biznezmen use this as a marketing tool, that is ok. But dont fool forum uself about CAI.

Josh

iTrader: (5)

i'm confused are u saying that the cai does provide cooler denser air? because i thought u said that the temp would be pretty much the same all around the compartment?

also about the cai, the cai has a larger path for the air to flow thru thus reducing the strain to get more air (lowers the pressure as the diameter increases) like sucking air thru a larger diameter straw requires less force than a smaller diameter straw.

tell me if i misunderstood u.

Josh

iTrader: (5)

also the insulation was refering to the stock airbox temp that jeff was talking about.

Jeff92se

iTrader: (82)

Actually this conversation was done a few years ago. Temp probes and everything. The air inside the engine bay does cool down when moving over 30mph or something. But I still designed/buit my custom cai anyway. I like the long tube design (ie.. long tube headers vs shortie style). And the fact at a light or low speeds, the cai will be taking in a shot of near ambient temp air vs hot engine air. Also during the summer months, I don't notice nearly as much performance variances vs the winter months. Important for me as I'm using the JWT ecu and 91 octane gas.

Dave B who owns a 4-gen, has tried more versions than all of us combined and has extensively 1/4'd his car. The setup he uses is what I use.

Take it for what you will

Wiking

CAI is marketing gimmick terminology. (Dont mix: most marketed systems do give better performance compared to stock)

Read my web pag as suggested.

Cold air is denser, contains more oxygen molecules per measure. That is what ALL want to have.

While driving, engine compartment is about the same as all ambient air. Of course air ½inch from exhaust its hotter. But generally no difference because of the volume of inrushing air from down under.

Opening intake increases power up to a point: that does not have nothing to do with AIR temp. Car is an instrument that has to be balanced. If intake is big, engine air routes have to be big, exhaust have to be big (generalization) to have max HP. I would write two days on all nuances; pls google engine tuning...

...And then some CO nerds here say I use drugs, so dont believe me, test all, keep that what is good.

Wiking

If so, would 5$ temp gauge installment to intake airflow then be about high time?

Just to measure exactly yourself (no hearsay or feelings)?

Jeff92se

iTrader: (82)

It's been done before. Why do it again?

Josh

iTrader: (5)

i never said that air temp was related to the size of the intake i guess we just misunderstood each other. and yes the more dense the air is (more moles) the more moles of the hydro-carbon (aka gasoline)that they are able to react with thus more force(yes to a point not infinitely speaking).

kcidmil

Sounds like this subject has been pinned up for some time...

As for the hoodscoop, here's the style I'm trying to get.


It's originally a gauge pod... but I love how the opening is designed. I might have to end up doing it myself. NIN is being a little uncooperative about it.

Jeff92se

iTrader: (82)

Found Dave's post:
http://forums.maxima.org/showpost.ph...&postcount=137

Thread:
http://forums.maxima.org/showthread....3&page=5&pp=30

Should not have closed the resonator box either:

http://www.users.bigpond.com/pgscott...resonator.html

http://www.users.bigpond.com/pgscott...rsAcoustic.htm

Again, use what you guys think is right. I put my stock resonated mid pipe back on and like it. 92graymax is using this too (still I hope)

Josh

iTrader: (5)

thanks for the links, yeah i still have my res. midpipe on.

kcidmil

I still have mine as well. I just got a new mid pipe from Mr. Gone. I wonder how loud it'll be. My setup now is pretty loud.