Is it really worth putting a Cold Air Intake on 370z and what HP gains

SS_Firehawk

CAI's have already been proven superior over drop in filters and post MAF tubes. The stock setup is awesome, but there is a distinct flat spot after 6500 rpm. paper filters are superior when measuring restriction, debatable in cleaning air. Especially R2C intakes.
Exhausts come stock on cars, they generally suck, so we replace them. Likewise the intakes...

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gsxr750

Your missing the point, all cars come with air filters and exhaust systems.

Not all cars come stock with factory installed cold air intakes, as the the 370Z does stock.

Post some dyno results of 370z 's that have only had there stock CAI replaced with after market ones, most hp results are very minimal.

Sure if you put some big after market CAI on the car and then put on a good set of headers, large pipes and free flowing muffers and also eliminate the CATS and spend about $2500 and $500 on remapping , you will see some gains, but not from just simply putting on CAI by itself.

SS_Firehawk

Already modded, my car gained at least 10whp from my intakes but I can't give an accurate number because NST pulleys were installed as well. Your still missing the point with the intakes. The stock intakes are still restrictive at the over 6,000rpm, regardless if they are getting cool air away from the engine bay. Tube diameter and new filters account for most of the gains. AEM, Stillen, AAM, Takeda, Akuma, and Injen have CAI's. That's a lot of companies creating a product you think does not work.

Below is a link to AEM's news article on the Nismo 370Z intakes.
2009, 2010 & 2011 Nissan 370Z Nismo 3.7L Get Power with AEM Electronically Tuned Air Intake System

If you don't like them, then dont buy them, don't spread BS that they can only gain hp if you have other breather mods. It's untrue.

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gsxr750

Looking at the mods your car has, it also has a lot of exhaust work done to it, that and the CAI will benefit a lot, but not with a CAI alone.

gsxr750

Comparing your dyno chart to a stock 370z listed below, it looks like the after market CAI returns, had less power than the stock dyno run listed below.

Google Image Result for http://img.photobucket.com/albums/v176/justoneofmyhoes/NewStock370ZDynoBaseline.jpg

The point I was trying to make was, that if your only going to put on the aftermarket CAI , your HP returns will be only marginal and may be even less than stock , if the car hasn't been remapped or tuned properly. You also need to buy the best complete racing or street legal exhaust to fully achieve significant gains with the aftermarket CAI systems.

I would agree that the atermarket CAI would be very helpfull how a car that didn't come stock with a factory CAI , like a pick up truck etc.

But on the cars that have factory installed CAI returns, then the gains are only marginal.

Pelican170

This is not correct. You see the most gains from a CAI prior to any other mods.... Once you put on others, such as Exhaust, the results from a CAI are smaller than if the CAI was your only mod... Meaning, if you put on a CAI as your only mod, the HP will be around 10 - 15. If you put on an exhaust, and then later add a CAI, the gains from adding the CAI will be like 5 -6 HP or so...

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Fast Intentions CF Exhaust - Fast Intentions HFC's - HPS Tubes w/ AFE Dry Flow Filter's

Chuck33079

There's no sense responding to him. There's nothing that will ever make him believe that there's a reason to buy a CAI. If you correct him, he'll just move the goalposts. Save the effort.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent