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-   -   Trash Can + pizza tray + hose = Cold Air Intake (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/trash-can-pizza-tray-hose-%3D-cold-air-intake-923935/)

Alex_n/a 10-02-10 12:38 AM

i my self am doing what clokker did and i'm doing this as soon as i get my godspeed radiator since i'm adding an e'fan aluminum radiator 'AAi' all at once and maybe even a new oil cooler and oil lines while i'm at it.

more pics just to show how much area you got for clokker's way.
http://i52.tinypic.com/2qwfoqt.jpg

and i moved that metal block off plate covering some relays just for no reason lol
before
http://i55.tinypic.com/121e3yp.jpg

after
http://i56.tinypic.com/2r6jxy0.jpg

TrboSpdAnt 10-02-10 01:34 AM


Originally Posted by clokker (Post 10247061)
As you approach warp9, the atomic bonds of steel begin to loosen and O2 molecules can blast through the bulkhead behind the headlight, gather into a coherent mass and literally cram themselves down the intake.

Read your owner's manual, it's all in there.

I was making a funny. Many people seem to think that this is a great way to introduce into the engine compartment...

Yeah, I think it's in section 42, area 51 of the owner's manual...

scathcart 10-02-10 04:23 PM


Originally Posted by TrboSpdAnt (Post 10237216)
Actually, the 2000 Pontiac GTP Ram Air, while QUICK isn't overtly fast, and since the ram-air induction - much like this case - in actually forcing more air, as it should be, any engine will lean out if the TPS and MAF are talking to the ECU accordingly, only so much metered air will be registered, at any given point.

While I always like a great equation, other particulars should be taken into account, for said variables: Diameter:Flowrate (psi) from point 'x' to 'y' on the throttle, no RA effect, on the MAF (we'll say not moving, on a dyno) in comparison to the same control parameters on the highway...

NTM a direct scoop installed, instead of 5' of erroneous piping to slow down/ inhibit the air flow to the intake.

On the highway, you can DEFINITELY feel when it's leaning out (also illustrated on anal-retentive datalogging), where the standard power lacks, vs. where the RA induction overshoots the mark of the MAF's metering parameters.

I think as long as the appropriate flowrate is available, going back to the topic, at hand, your MAF won't dip, too heavily; though it will show leaning out at a progressive rate, under acceleration.

Secondarily, we weren't talking about an increase in power, but an increase in air-flow. Proven by his need to now bump the AFR, to rich, via the Emanage. If this weren't having any effect upon his AFR, he wouldn't now need to adjust it.

Might want to check out the guy's profile before you start question his expertise in fluid dynamics.

Hypertek 10-02-10 05:39 PM

Clokkers is the only one that looks good imo.

JCurry 10-02-10 06:20 PM

yep^^ guess you can get kicks when people ask whats under your hood and you say a trashcan!!

farberio 10-02-10 07:26 PM


Originally Posted by TrboSpdAnt (Post 10247157)
I was making a funny. Many people seem to think that this is a great way to introduce into the engine compartment...

Which is why saying it without making it obvious that you are making a funny is a no no. For example, when I read that I just assumed you were a complete idiot.

TrboSpdAnt 10-02-10 10:00 PM

Except you assumed that before I clarified that you were wrong, did you?

Ergo, your assumption only made it obvious that your reading didn't transfer the fact that it was sarcasm. The fact that you had to process that any further than your own ignorance, shows that's your dilemma, not the delivery.

Kinda of like speaking laterally to a person that's special-needs (as indicated by the fact that I had to clarify for your dumb ass that it was sarcasm and a joke): you can't obviously make an analogy if the person doesn't get it.

Now. If you're done projecting your social inadequacies upon the rest of us, I think Elmo's on PBS.

Back to the topic, at hand, since the kids have been dismissed back to Sesame Street, I think the idea is a good one, though depending on where Alex's design takes him, the end result will be nice, crispy, cooler air, like Clokker's....

farberio 10-03-10 08:53 AM

:rofl::rofl::rofl:

FYI, its better let everyone think our an idiot then to post up here and prove it.

Evil Aviator 10-04-10 12:38 AM


Originally Posted by cerm78 (Post 10237145)
One question to the experts:

Which is the best total area for the filter trash-can (box) breathing snorkels?

The RX-7 Competition Preparation and Service Manual recommends a snorkel of at least 110-120mm (4.33-4.72") diameter, which works out to about 15-17sq in cross-sectional area. Your current setup of two 2" ID pipes has a cross-sectional area of a little over 6 sq in. Also, multiple pipes will have a little more drag than a single pipe of the same cross-sectional area.

Here is an example of a race-winning NA engine intake:
http://www.mazdatrix.com/pictures/fa.../ep01123ib.jpg


Originally Posted by cerm78 (Post 10237145)
The stock AFM doesn't seem to have more than 3 inch diameter (don't know for sure) so what is the advantage of having more input area to the filter if the intake itself will have it's own restrictions?

The advantage is that a large intake snorkel and large air box around the filter will allow for a bellmouth inlet design, which is the most efficient subsonic design known to exist at this time. The idea behind a bellmouth inlet is that an air horn is positioned such that it can pull air as needed from a large reservoir. Since your car retains the stock intake manifold and AFM, there is not room for a properly sized air box, and there are no air horns to pull in the air. If your current design seems to work well, I would just stick with what you have and call it good. If you find that your engine is having some difficulty breathing, then I would try adding a manifold between the inlet tubes and trash can so that more of the filter surface area is exposed to inlet air.


Originally Posted by clokker (Post 10239941)
The OEM part is probably quieter and I'd guess any "performance" advantages- either way- would be more imaginary than anything else.

LOL, yes, most of the perceived performance increase from a typical CAI is due to the louder noise which the driver will equate to more power, even if it really isn't.


Originally Posted by scathcart (Post 10247744)
Might want to check out the guy's profile before you start question his expertise in fluid dynamics.

You should know by now that teh nternet and teh anal retentive dyno trump education and industrial experience.

scathcart 10-04-10 10:38 PM


Originally Posted by Evil Aviator (Post 10249900)
You should know by now that teh nternet and teh anal retentive dyno trump education and industrial experience.

Heh. Kind of makes you wonder, tho, how many people read his response and thought it to be very educational?




Scary.


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