HKS Intake?

[Jason@Nameless]

Originally Posted by WillieRX

Modern day fuel injected engines really don't need aftermarket intakes for performance. The stock one developed by the engineers are actually pretty darn good these days. Also, it has metal plumbing, which will retain engine heat more then the stock plastic plumbing, and increasing intake temperatures. That is not something you want, and probably will hurt performance more then help. Also, modern day mass airflow setups seem to be quite picky, and adjusting the plumbing from the stock setup could affect A/F ratios.

I think all you need is a good panel filter (like the TRD one). I still have the stock air-box and intake plumbing on my WRX, and have the STi panel filter. I plan on keeping the stock intake setup even after I throw on a bigger turbo and intercooler, etc... because the stock one is pretty darn good and can handle 400+ HP without issue.

This really depends on the car. Our intake on the Kia Optima Turbo (Speed Density from the Factory!!) makes 11whp/13tq over a baseline with a panel K&N filter (and it uses the panel filter - just the piping for the intake makes 11/13). Most intakes and turbo inlet pipes on Mazdaspeed3's crest over the 25hp mark. A simple cat delete and intake I designed for the MS3 at my last job made 52ftlb of torque. Just depends on the car really. Our intake prototype for the STi makes quite a bit of power with the proper tune, where the factory unit gains less with a similar tune. N/A is a whole different story - much harder to build power, but most people want a good sound on the car and induction is always a fun direction to go for that. I dig the speed density cars, you can run a massive 3 or 4 step reduction from a 4" filter to a 2.25" throttle body or turbo inlet and really build a lot more power than stock.

As for MAF tuning and getting the diameter and MAF placement right, it is very finicky. After designing 7-8 different setups though, you get to be able to intuit a design. Some simple computational flow dynamics software also helps. I was working with my old employer on the Mazda SkyActiv MAF housing design for their new intakes and I was able to get within 3% of our long term fuel trim goals on this first try. That was with a billet MAF housing, which is pretty much necessary to get repeatable results. Welded MAF bosses seem to be a good way to induce variability into a system like that.

Also, your comments about metal vs. plastic are not terribly accurate. I've done the tests back to back with four channel thermocouple dataloggers and there is negligible difference (standard deviation at best) between stainless, aluminum and plastic or rubber. All heat soak over time in the engine bay. And even at wide open throttle with an office full of air being ingested by the car every few minutes, the intlet air temperatures of an intake drawing outside of the engine bay air doesn't change markedly by a material change at the intake. That may be different if you had, say, a 32" long .25" wall aluminum intake, but stainless or silicone vs. thin wall abs is functionally a wash.

N/A cars are most certainly a hell of a lot trickier to make power on an intake. It's not to say that many of us aren't up to the challenge though.

Would be so much cooler if there was no MAF. Speed Density FTMFW!

J

[WillieRX]

^Coming from you, it actually means something. Nameless is one of the few companies with a good reputation that I actually notice.


Like you said, depends on the car. I have probably been immersed too much in the WRX crowd on the very heated debate on whether the stock intake or aftermarket intake is better. However, i still cant bring myself to trust a metal intake...


I was thinking very similar to the MAF setup.


Thanks for your explanation.

[ill86]

Originally Posted by Swift Racing Technologies

they literally took less than an hour designing the intake for this car..

but it is HKS so you will pay a premium, bend over and smile at the same tim.

How do you even state this as fact? Do you work for HKS Japan?

If someone wants to pay the price that's their own business. I personally like brands like HKS and ARC. People used to bitch about their costs too.. But, again, nobody is forcing anyone to purchase the parts. We should be happy there is strong support from companies such as HKS.

I hope you do offer a nice kit and I'm not knocking your ability. To be honest you are coming off as pretty rude or harsh about it. It is an intake kit. It provides a metal pipe and filter for the oem box. Some folks actually want this style.

[xcelir8brz]

Originally Posted by igorot

This is perfect (i.e. do a noise generator delete). The sound will provide a bit more growl.