Which intakes are best: dual takeda short ram or k&n 69 cold air intake
My friend is selling me he's takeda ones for 150
I've heard that other intakes don't add gains compared to our stocks? Just need some opinions.

 

what have you learned from your search results?

 

Cold air intake will out perform any short ram intake,due to heatsoak... In general our stock intakes are pretty good the way they are...

 

Current good discussion going on here:
https://g35driver.com/forums/intake-...ir-intake.html

 

Except at speed, where short rams will work just fine due to the V36's design with air being fed into the filters (assuming one didn't remove the stock piping that allows for the ram effect at speed with the OEM intake.)

It's also arguable that short piping helps more on the top end vs. the longer tubes on CAI's. Think in terms of drinking through a short vs. long straw.

 

WRONG !!!
Long pipes are good on top end.
Short pipes for low end ( if any ).

 

I said arguable, you can't tell me i'm wrong. But dare i ask, why you think it's "WRONG !!!"?

 

besides my readings, i tried them both n i saw the results on real life..
i tried to find a scientific answer myself tho but i can't seem to find any.
my only guess is probably it has to do something with the distance/time that it takes for air to travel and get there .. so i dunno.

If u got an answer then be a generous, tell us n get your cookies !

 

I don't think they do much of a difference, other than changing the sound of your engine under load.

With long CAI, you risk sucking water up from large puddles/carwashes, since most of them sit either in your bumper or in front of your radiator. Short ram intakes are safer in terms of that because they sit behind the radiator, and have a far smaller chance of sucking up water. Also, long tubes are also more painful to install, and may require some cutting of your vehicle frame.

If you live in a wet climate, I suggest you get short ram intakes, although there won't be much of a difference in performance.

 

Intakes offer nothing but possible headaches, just install high flow filters like AMSOIL for the best results. Nissan designed fairly good intakes for your engine, leave it alone!
Gary

 

I have had K&N drop ins, stillen short ram and stillen cold air on my car. What I saw with each one was:

Drop ins - No noticeable difference, might have freed up a little bit of low end HP.

Short Ram - Definitely improved mid range power but stole a little bit out of the top end.

Cold Air - Improved vastly on top end 6KRPM+ but slacked off a lot with mid range.

As far as water issues go I know those too too well. Hydro-locked my jetta, its CAI sat maybe 3-4" off the ground. That naturally made me skeptical about doing another CAI. However most CAI's for the VQ35HR/VQ37 I have seen put the filters directly behind the grill and some come with a splash shield. With the way those are setup you do not have to worry about standing water on the road, unless for some reason you are driving into 2+ feet of water then you have other issues.

If you plan on doing exhaust work and retuning your ECU then the CAI may post better #'s after that's all said and done.

 

I don't think anyone here has ever sucked water up into thier intakes.

The complete filter AND end of the tube has to be literally underwater for that to happen. If the car were that deep under water, the passenger compartment would probably be flooded too.

In my opinion, cool outside air will provide a denser fuel charge over hot air inside engine bay.

 

I never understood the concept of a "cold air intake." Especially after reading things like caroll smith's tune to win. the air near the asphalt is hotter than ambient (caroll smith claims by up to 20 degrees, i haven't really been able to find any other data to corroborate), so the only time your cai gets colder air is when you are in an indoor dyno with cold cement under the car.

You have to understand that you have to consider when the car is in motion, not sitting in a garage. So where the airflow in the engine bay comes from is more important than where it is. You basically want the air coming in from as high as possible, but not behind any radiators (and not in low pressure areas). all the "short ram" intakes basically sit in the stock airbox position, so i doubt its really getting much air from behind the radiator. That being said, i don't see any potential benefit in removing the airbox.

IIRC, i remember when looking at buying the g35, i read something that mentioned that the g35/350z airbox was designed as a ram air intake, and it did get some marginal yet significant increase in air flow at higher speeds. You would loose out any sort of this effect without the airbox and probably increase your coefficient of drag as well, with the airflow in the engine bay becoming more turbulent with the added flow from the region of the ex-airbox.

 

+1
Correct .. Stillen G3 - in particular - have no issues with sucking up water, and are the best on market in terms of performance gain.

 

tired of the water speech with cais. it CAN happen but most likely wont. ive ran my cai for years even took off the bypass. no issues. nor did i have to cut anything in the frame to install.

the puddle would have to almost be over a ft high for the filter to swim in it and whos dumb enough to go through a puddle thats even half a foot high at all. the streets would have to be flooded and if there is a flood the intake is the least of ur concerns

and if ur car is lowered even less likely someone is dumb enough to drive through any puddle