I did this exact same thing. The misreads will cause you to read either lean or rich or vacillate between the two -- trust me on this one. I couldn't tell using my butt dyno either, but a dynojet set the record straight.

Dyno it vs. stock airbox and see if your project worked. It's not the design or the idea that's poor, it's just a limitation of the sensitivity of the MAF sensors.

We have the same sensors and the same car -- to assume yours work differently doesn't make sense.

Now, that said, if you build bracketry to clamp down the intakes well enough to prevent any movement it might work, but without a dyno, there's no way to tell.

go kart cans.got the idea from another member on here.after just 2 days of short trip driving,there was oil in the cans.

trust me,the intakes are not moving,they are braced very well.i looked at your hack and imo,your air filter was too small and putting the filter inside the box restricted air flow.i know this from a prior hack on another car.i am using a 2" long 3" diameter aluminum pipe to connect the filters and the silicone reducers to the cut off maf tubes.

i understand what you are saying but the car feels stronger now than it did with the drop ins and maf tubes even though im still using the maf tubes.it is a very smooth air transition inside the pipes.the aluminum pipe is very thin and i sanded the maf tubes down to an angle to eliminate turbulance.car felt so strong tonight in 65 ambient,i really dont see the need to go further with the mods even though i will.

i will say this.for those people that are running the typhoons,i would be angling the filter down as far away as i could from the top of the hood by loosening the connection by the tb's and angling the metal tubes inwards to drop the filter further away from the hood where heat gathers at idle if thats even possible.when i dropped my filters as far as i could,my gas mileage is staying around 21.6 with very spirited driving.anyway,im just in testing phases to see what positioning of the air filter works best under the hood.and so far,the gen 2 makes more sense according to my butt dyno and the cars computer.

edit: im keeping my setup.:tup:

I also dynoed with the airboxes out thinking the exact same thing. The filters I used were the same as those used for other intake kits, so should have been fine.

If they aren't moving around, it should work -- let us know if you decide to dyno. It's the only way to know for sure...

He chopped the hell out of the stock intake box, so there isnt really any easy way for him to do an accurate measurement...plus, if he doesn't want to spend cash on a pre-engineered intake, doesn't really make sense for him to spend cash on a dyno.

lol.its not about spending money on an intake.its about getting the best performance possible with a sri.there will be PLENTY money spent on this car with future mods.i do like the typhoons but as i said,the filters sit too high close to the heat.engineer me a sri where it places the filters in the same local as mine and i will be all over it.it takes so much less effort now to get up to speed than it did with the drop ins.im happy and will be moving on to my next mod which will be exhaust and pullies.also engineer me some heat shields like i have modified the boxes and ill buy that too. :)

I can think of two off the top of my head that sits in the same spot. The Takeda and Stillen Gen II's.

with the design of my pipe !

:confused:
How unique is your pipe design exactly? The Stillen and Takeda are essentially one continous piece of pipe from the filter to the tb. I don't see how yours could have any sort of advantage over those other intakes.

http://www.the370z.com/members/m-j--...165-intake.jpg
http://www.vividracing.com/forums/ga.../4/3/370z3.jpg



....or even the HKS if price isn't an issue.
http://cdn3.openclutch.com/sites/def...issan-370z.jpg




http://www.the370z.com/members/kenny...t-question.jpg


I'm not knocking your work, just curious as to the actual functionality compared to what's already out there and if you're actually making power....The butt dyno isn't very scientific, especially when something as simple as weather conditions can make the car feel faster.

it looks like my design is almost like the 3rd pic with the yellow filters.what intake is that ? and if you'll notice where my filters are sitting in the side profile shot vs the first pic,you'll see how much i dropped the filters from the top of the hood.didnt feel any heat soak after i did that. the power steering res is how you can judge the diff from where the filters were sitting in the first pic.i wouldnt mind trying the 3rd pic with a different air filter though.

edit;and ambient of 78 with this setup vs 65 with the drop ins,this setup still feels faster.

The 3rd pic is the HKS. Crazy expensive and they make anywhere from 0-5 hp gain.

i can see why with no heat shielding.

without an actual dyno for comparison i don't see how you can preach how must "stronger" the car feels and how efficient your intakes are :ugh2:

you call a cut up stock airbox efficient heat shielding? i'd like to say Stillen Gen 2's actually have heat shields.

im not preaching,i was just sharing my experience.my bad :ugh2: