Mmm, I don't think it can be used with the aem box because the aem box 's inlet pipe goes inside the box to connect to the cone filter. The nisei inlet pipe is a stock style pipe that clamps over the maf housing. The maf housing on the aem isn't like the stock setup where it's a separate unit, it's built into the aem's inlet pipe. There's no way to make this work.

 

thats strange cause they acted like they had it working on the phone. He said he would send me some pics so we will have to see I guess.

 

im waiting for my call from kevin as well, it seems like if you use the nisei intake pipe instead of the aem black intake pipe it should work fine. hopefully i get some news soon

 

No probs! I'm glad to be of help. So here is the scoop.

When they prototyped the Nisei intake pipe, they made it to stock specs so it mates to the stock MAF housing and from there, you can use a factory box, an ARC box (like how im running mine), or any cone-type filter for that matter.

With the AEM kit, AEM uses their own rubber intake pipe that is shorter than the factory. Followed by that, is the AEM metal MAF housing pipe that is longer (by 2 inches or so) than the stock MAF. Botht he AEM MAF housing and stock MAF housing appear to be the same diameter.

So, we were able to fit the AEM box as well as the AEM cone inside the box. Everything lines up, but the only thing is: You can't use the AEM MAF pipe unless you want to modify it by cutting it shorter by 1 1/2" or so... In order for you NOT TO MODIFY the AEM MAF pipe, you can actually run the stock MAF adapter pipe and the AEM cone filter will actually connect to it. Everything is still direct bolt-on, you simply just omit the AEM rubber intake and the AEM metal MAF pipe...

There will be pictures and updates on this....

 

updated info: http://www.nisei-evo.com/forum/viewtopic.php?p=818#818

antics, do you think there is a difference between the aem MAF housing and the stock one? im assuming you saw the kit since it was on your car

 

Please don't speculate on this unless you own a nisei intake pipe and an AEM box...

The Nisei intake pipe CAN BE USED with the AEM box. Some of the components of the AEM kit will not be used such as their rubber intake pipe, and their metal MAF pipe, but the BOX and the AEM Cone filter all BOLT ON without any issues.

Sounds more complicated than it really is.... Heres a couple of pics:






You can read all about it here...

http://www.nisei-evo.com/forum/viewtopic.php?t=632

 

oh damn, you posted this just as I was posting... lol

Aside from the factory being plastic, and the AEM one being metal and pretty... from "eyeballing" the two side-by-side, I saw no difference at all in the diameter size of the MAF housings.... only difference being the AEM MAF housing was longer than the stock one... I believe Nisei was going to measure the inner diameter a digital gauge reader to confirm....

 

lol. . . . good stuff cant wait to get my nisei pipes and aem intake lol

 

LOL anitcs I was about to cut and paste this here you beat me to it. I cant wait for my stuff to get here.

 

Just as an FYI, the stock MAF starts off big at the entry and exit but it necks down to about 77mm where the sensor reads the signal. Just for reference the AMS intake is about 82mm all the way through in their one piece turbo to filter 3" tubing. These measurements all being inner diameters and I'm not sure about the AEM measurements.

While 5mm difference seems minor, the intake does lean out the airflow readings by a good chunk since it's about 6% difference in diameter. Much of the gains of the intake are from leaning out the AF ratios.

 

Awesome. Need installed pics.

 

I'll be damned, I didn't think that you could use the stock maf housing with the aem box. I will say this though, if you're gonna use the AEM box in this type of setup then why not just use the stock box with a drop in? Intakes make most of their power in the filter element leaning out the air fuel, just the same as an oversized maf can trick the ecu into going into a lower load cell and thus leaning out the fuel mixture and running more timing. However, once ecu tuning comes into play, these gains are no longer present.

Dyno4mance just proved this by showing that the works drop in filter netted about 10 whp on their low reading dyno dynamics (the gains read higher on other dynos), but after a tune it made the same amount of power as a stock paper filter. As the power levels are raised then I suspect the paper filter element might become a restriction, so a simple drop in is a good way to go since the box itself isn't a restriction at all. Either way, there is some power to be made in the UICP and possibly some spool improvement to be had with the inlet pipe. Plus it SO nice that it hides the bov hose! Nisei = super clean. Nisei FTW.

 

No where in my post about the filter testing did I say this. I have speculated on this in the past and still do to to some extent, however I have not tested this theory yet and to be honest it's too late now as I have already added the Nisei hot pipe.

I will say that after adding the Nisei hot pipe and the works filter I did a run on the same tune the earlier in the day netted 287 whp, in the new configuration with the same tune I got 303.4 whp. AFR lean way out (like 12.2:1) over the previous configuration, more so than I would attribute to the filter. After getting the fuel back where it should be I put down 300 whp a gain of 13whp just from adding the Nisei hotpipe and works filter. I think the gain was due to increased VE as I put the fueling back where it should have been and still gained 13whp.

-Bruce

 

I heard you tested this, perhaps I was mistaken. Either way, I think that it's safe to say that when seth's car put down 290 with the works filter, ultimate racing turbo back exhaust, and ecutek tune and your car put down 300 with the same parts, the only difference being the nisei upper pipe, that all the gains are in the pipe and have nothing to do with the filter at that point. My suspicion is that all the gains are from the hot pipe not having any expansion under boost and better thermal transfer to the intercooler.

 

I think you were thinking of one of Noize's posts about tuning results. I certainly did test the drop in filters last weekend and post the results. However, I didn't say in that thread there were no gains after tuning. I couldn't say that because I didn't test that specific case.

I can say that the addition of the works filter and the Nisie hot pipe netted 13whp on our heart breaker of a dyno after bringing the afr back down to where it was before hand.

No, I didn't.

Anyway, back on topic.

Go Nisei