intake restriction & flashpro

[wicked1]

Most of the aftermarket intakes have a restriction in the tube, where the air sensor is located.
Isn't that a relatively large bottleneck?
w/ a flashpro, could we tune things to work around that and have an even more free flowing intake?

[Scotty001]

Large bottle neck? As compared to the stock? Kind of lost me on this one..

Not sure I understand the question..

Tune for more airflow?

[wicked1]

All the aftermarket intakes have a relatively wide pipe, and then seem to shrink down to stock size for the airflow sensor.. then they get to a large tube after the sensor again. (look at any aftermarket intake, and look at the section the sensor plugs in.. it's a very narrow spot) (read back to the very first posts about intakes in these forums, and you'll see when people first start experimenting w/ them and figure out the restriction. I think the sensor gives an inaccurate reading if the pipe is too wide where it's located)


I'm wondering if running a flashpro will let us run a more flowing intake w/out that restriction. I know it's there because when they didn't restrict the intake like that, it threw a cel. But now we can control a lot more..
So person A w/ no flashpro can run an aftermarket intake made to run w/ the stock ECU and w/ the restriction where the sensor plugs in..
But can persn B, who uses flashpro run a wider, free-er flowing intake because we can tune the engine to NOT throw a CEL with an intake w/ no restriction at the sensor??
(are you going to make me find pics? just look at the new tekeda or the k&n, etc and look where the sensor plugs in. .it is restricted as much as where the sensor plugs in in our plastic stock intakes.. the rest of the piping is wider)

[wicked1]

well, I've borrowed pictures I've seen around the forums that clearly show the intakes get restricted where the sensor plugs in, which I thought was just to get them to work w/ the stock ECU.. So now that we can reprogram, can we run more aggressive (more free-flowing) intakes? Or is that a physical limitation of the sensor, so we'd have to replace that too, or something?

[JCRZ]

Yes

[wicked1]

COol, in that case, another question.. Will the aftermarket companies make an intake for the car that only works w/ an engine controller? (Doesn't seem like there would be a very big market for that, at all.. ) Although, I did just read some posts on a civic forum and it does indeed look like some of their intakes only work w/ a controller.. (injen and cpl were mentioned).

But anyway, assuming the market isn't big enough, is that something a local tuner should be able to piece together?

[JCRZ]

I would assume so, just get the proper maf housing, well just the part where the maf sits and bolts on then u could run a full 3" and tune it. But let me add the BLF cai Is massive and I always said that with a tune this intake could make even more power, so consider that too.

[wicked1]

Yeah, the BLF doesn't restrict at the sensor, either.. I was wondering if there's an internal restriction to the pipe, or how they got around the issue. But it looks to be a uniformly wide tube.

[Kyleseghatch]

In the instructions for the BLF it details how it kind of tricks the computer into believing that much air is supposed to pass through.

[JCRZ]

Yea the inside of the housing was manipulated by using a thicker material that matched the proper pipe sizing. U can see it when apart. It's how they were able to use that large piping without throwing a code but most importantly without it being incredibly laggy. I remember the first prototype they tried doing it all 3" and I remember driving it and sport mode felt like Econ mode with all the lag.