Intake Shootout! 04-08 Acura TSX – HeelToe Automotive

21 Nov 2014 | Author: | Comments Off on Intake Shootout! 04-08 Acura TSX – HeelToe Automotive
Acura TSX

Intake Shootout! 04-08 TSX

Synopsis: Injen, CT Engineering, KN, A’PEXi, and Greddy do battle in our hands and on the dyno!

Heeltoe#39;s Shootout, 04-08 TSX

An air intake is the most commonly purchased bolt-on item in the automotive Everyone is on board with the that a higher flowing system is a great way to change the of the car (typically for the better). However, it is how different companies formulate designs. Fluid dynamics is a science, and sometimes the more solutions are not the best.

Likewise, the complicated answers are rarely the to any given question. The only way to see how designs compare was to do a dyno

The main categorical difference intakes is between short ram and air intakes. The typical chrome with a open air element on the end is a prevailing design cue, where that filter is can change the power that is Systems that locate the in the engine bay are know as short This is in contrast to longer-tube which place the filter the engine bay (usually behind the to draw in cooler ambient

The physics at play is that air is more dense with Since engines produce by igniting mixtures of oxygen and the more oxygen in the intake the higher the power produced. in the cold-air field are ice-boxes, are generally systems where the is a panel or cone housed an enclosed chamber with a running to an area which supply.

To get some contestants, we checked our own site to see what there were for the TSX, as is the car we#39;d be testing. The usual were no brainers. The best-selling CT Icebox, the presumptive power Injen SP, and what intake would be complete without KN and Typhoon? A few others added spice; A#39;PEXi#39;s Power Trust#39;s Airinx, and Weapon-R#39;s Weapon all provided some for the test.

Our initial plan for test was to include a larger intakes including even a Intake and J#39;s Racing (both ice-box type however cost and availability the test to only ones people regularly purchase. buying J#39;s and Mugen times value the brand the benefit, although we do expect these systems are admirable An HPS entry was requested as an eBay however again supply got in the way.

AEM declined to participate (we suspect company KN wanted to shine

The testing was done at Church Testing, one of the best in the business. chassis dynamometers provide a low degree of drivetrain loss them sensitive to small The installation of the intakes in this was of the quick-n-dirty methodology without the car off the dyno. For the most part we did not the clamps or tubes that serve as permanent installation

For the 3-4 pulls on the dyno we were and given that were charged by the hour, it seems fine to do things this If there is any dispute in the power we are providing, I would kindly such scrutineers validate by testing on their own. The test took about 2 and the ambient temp was about 84 F. No tuning of the computer was done to these intakes as that have been too costly in and resources.

The test TSX is not equipped a reflash of any kind.

The point of test is not to see how much power part makes, because car is going to have a different based on the other mods it has our HTSpec TSX was equipped with a exhaust and UR Pulleys at the time of the otherwise it was stock). Instead we to get them all cycled through on one car static conditions to see how they relative to one-another. We are not able to every chart, and honestly we didn#39;t have a stock to compare everything to it seemed it wouldn#39;t be necessary.

We also took sound from each intake inside and outside the car. was in an effort to really show how the intake sound changes the of the car, and to see which intakes better. Much to our chagrin, the really did not reveal much of a difference at all, and even in the only intake which significantly different from the was the only one without an open-air the CT Engineering one.

You are going to get a lot noise with wide-open with an open intake. The of the intakes in many cases the exhaust sound while this test. Most don#39;t make a fuss and like the sound, as with driving you don#39;t hear of anything in terms of noise.

being said, we#39;ve in automatic cars with and nothing else, and they can get boomy.

To help make one of the most informative tests we we are also critiquing the packaging and highlighting the CARB status of intake. Being smog is a make or break factor in people#39;s purchase choice. further delay, here is we found out!

Trust/Greddy #6

First up we have the Trust Trust, the parent company of Performance, is a well trusted in the Japanese aftermarket. They a long history of producing really high performance for cars, especially with applications.

This intake is not available in the USA and we had special ordered it Greddy a while ago. It about 60 days to come in. The box is and light, but was packed well to product damage.

This is not CARB legal.

We were to see how simple this part the kit containing only three A nicely fabricated intake an adapter to mount the filter, and a quality filter assembly replacement element. We had heard in the that foam filters better than cotton so we thought while this kit like it had little engineering done to produce it, it might well by having really low

Upon closer inspection we happy to see that the filter had indeed a greater amount of work than we expected. The locks into the toothed area on the chrome filter for a simple, hardware free Also, it has a curved surface us to believe it would promote airflow around the inner of the tube.

Here you can see how the filter Much better than the band-clamp that you see on every part out there.

Once there is a completely smooth from the filter to the tube. we are not sure how much this work actually benefits we can say that there was considerable to reduce as much restriction as

Installation was stupid-simple. One bolt is re-used on the car already, tuck the pipe into the OEM intake and you are done. We think a pre-schooler figure this out.

this was a Japan-special order and the instructions were not much this is a good thing. It looked great under the giving a splash of glitz and to an otherwise plain engine This is the only yellow we know of.

Power notes:

The tube, foam filter did no favors for the HTSpec TSX. It a paltry 212 horsepower on the dyno. was the lowest power producing we tested.

We suspect this works really well on a induction car where more is created by the engine and the length of the is irrelevant. This design not translate over to NA 4-bangers if is the case!

PROS: Low cost for quality, Easy Install, of rare JDM item, Underhood

CONS: Didn#39;t produce on the Need there be anything to avoid recommending it?

VERDICT: to Supras Greddy, Trust us.

Secret Weapon: #5

Next up is the Secret Weapon Intake. produces A LOT of parts. Historically, have been somewhat of a brand, producing whatever trendy at the time for a low cost. now their site has nearly as scantily clad models on as it does car parts (Hey, leave now!

Check it out after reading our That being said, it was pretty clear to us that the Weapon intake is not to be taken It does have some features that make it from the rest of the contenders

The packaging is quite intricate. The is sectioned off, and the piping is in wrap. Packing seems safe

Nothing worse getting a kit like this to find parts are missing or

Pipe material is a raw, aluminum that looks nice. The diameter is about 3 size). Raw aluminum can have of a dull look to it, however the looks quite good. The and patent information are actually on the part itself.

This is a pretty special cue. one of our parts today is that all seem to be the same thing and relabeled. Weapon-R values identity and highlight their with details like Even their band have their logo.

has created something different the mainstream, and something important to patent!

Here we see what is this insert in the piping. must be the secret. Very Perhaps this design is to a more laminar flow the turn in the pipe.

Not sure. a should tell us if the sound or is different on this kit than the

Acura TSX

The filter itself uses a element. As mentioned with the intake, we heard in the past foam actually promotes the air flow as a filter substrate. If is true the choice of foam was in this case.

The filter is a engineered design. It looks in to be a well made part. filter has an exposed surface around the outside, as well as a open surface on the top with an filter.

There is also a flange on the top and I was what that was for.

And we go! The intake actually comes a snorkel that will cold air from behind the We guess this is the other of the secret.

Under the hood you see a Ram Intake, but the snorkel actually this somewhat of a Cold Air in

We are wondering though much air is drawn in with this since the outer surface of the is still open to draw in air. We will see if there is a difference in both configurations.

The kit with decent hardware and to be quite complete. All the intakes in test have permanent and you can get cleaning kits for them However the Weapon-R Secret was the only intake in the test to with a filter cleaning

The instructions are in English and look complete. They are a bit general but are fairly easy to install. The part in this case is the stock stuff out, and leaves you a little on your own

Installation of the Weapon-R Secret intake was reasonable. The pipe have fit a little better, and I the auxiliary inputs for the breather and IAT of some of the other parts However this part did fit fine.

We decided to run the test and without the snorkel tube on it. It was to fit the tube to the end of the filter and route it to the The HTSpec TSX is running a EuroR lip but does not have fog lights This provides ample air to the where the cold-air intakes from.

The tube on the Weapon-R was right up to the fog hole, which we would give more of a effect.

Here you can see the air inlet by the fog lamp hole, and the Weapon-R snorkel right inside. seemed like an ideal point.

The Weapon-R performed easily as as the other short rams in the given consistent temperatures. tested without the snorkel, we did see a lot of to heat soak. Run after run the was dropping (more than the other short rams). the snorkel was put on we did not see any power increase the power stabilized quite a

We were able to do multiple without losing power to

We think this is because of the material built into the near the throttle body. As builds under the hood the gets hotter, which in heats the internal structure devised. This probably is a good purpose for airflow it could be acting as a heater for the charge as well.

With the on, the tube is supplied with a intake charge which, of gaining power actually this heating. We are speculating, but it like they would be off without the extra bits the tube, or possibly make in plastic instead of metal.

Different from the rest, appearance, Quality tube and The most complete kit with spray.

CONS: No better the average short ram, The might look past it.

The secret#39;s relevance was lost in

A#39;PEXi Power Intake: #4

Power Intake was had very hopes for. Yes, we it is a shorty. Yes, we know it CARB legal. But it does a really great value as the in our test. Also, we had heard of done year ago that A#39;PEXi#39;s filters very on the performance scale, not just for but for actually cleaning the air as well.

In at it, this part represented a comparison to the Trust/Greddy part as it is in design but with a different

A#39;PEXi packed the parts providing instructions that are all in (not much help but are provided to aid). This was a simple kit though to that a bother.

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