Fix for the short intake problem.

[Edub1]

Started moving the MAF down into the fender. I will have 22" from MAF to turbo. I wonder if having the Apexi air filter bolted right to the MAF can cause a problem. If it still doesn't run right, I can flip the pipe and put space between the filter & MAF. Hopefully this works - if not I'm going to weld in a sheet metal X and if that doesn't work I'm going to broom my ECU and go Mega Squirt.

[Afliction523]

Ill post a pic of my setup. I had this problem with my ka-t the last two weeks since I have been turbo. I fixed it last night. The car wanted to bog down and die in neautral, revs, and even backfired from being rich. I took a 22deg bend, and two rubber pipe connectors from ace. Cramed my filter in over the fuse box(took off teh cover since it made the filter to high)Once I connected everything I was about 11.5 inches from the turbo with the filter on. Put my weight on the intercooler pipe and secured everything. It was a pain, but works.
Modified by Afliction523 at 6:36 PM 4/17/2007

[Afliction523]

[NateDogg]

Just a thought...If you're staying under 300whp, I would suggest staying with the stock MAF. It may not be as affected by turbulence as the Z32 MAFS because it has a 1 way flow through the hotwire.

[S13FX]

Wait from what I remember the Z32 maf has the same problems with turbulence thats why when you look at the VG the mafs are like miles away from everything.

[Edub1]

Wait from what I remember the Z32 maf has the same problems with turbulence thats why when you look at the VG the mafs are like miles away from everything.

I'd like to see a picture of that. I am going for around 325HP so Z32 is necessary. But yah, the stock one looks much more forgiving. The Z32 just kind of puts the wire right out in the middle of the pipe. I think if the longer pipe fails a good X fin ought to smooth it out quite a bit. We'll see.

[srblacks131]

why dont you guys just do blow-thru???? No idle problems, no rich problems, dont have to recirc the bov??? Just wonderin

[esahuque]

Started moving the MAF down into the fender. I will have 22" from MAF to turbo. I wonder if having the Apexi air filter bolted right to the MAF can cause a problem. If it still doesn't run right, I can flip the pipe and put space between the filter & MAF. Hopefully this works - if not I'm going to weld in a sheet metal X and if that doesn't work I'm going to broom my ECU and go Mega Squirt.

i am thinking of doing the same thing, but what about sucking up water from a water puddle or rain, thats what im worried about. anybody have any input on that?
Modified by esahuque at 3:41 PM 4/18/2007

[Edub1]

I was just re-designing my MAF and upon inspection I noticed that the hot wire in the Z32 is only a couple inches from the MAF inlet. With a pop charger filter like the Apexi mounted directly to the MAF there is no way in hell the air passing the wire is in laminar flow. In fact, I hit the filter with some compressed air and found that turbulent under hood air hitting the air filter is probably also hitting the wire and giving a false readout.

So, I'm almost certain that the problem is not that the MAF is too close to the turbo but that the hot wire is way too close to the pop charger and that turbulent air is wreaking havok on the MAF readout.

What I did is left the MAF in the original location and to the MAF inlet I attached a 90* bend and took the air filter down into the fender. Now I should get a nice smooth laminar flow coming into the MAF instead of a bunch of swirling eddies.

I'm 99% sure this is the key - we shall see.

[esahuque]

yeah, but once again what about sucking up water into your intake

[Edub1]

I won't be driving my car in the rain. A little water shouldn't hurt too much but you can always make a shield. Maybe an empty coffee can with a few small drain holes in the bottom.