To me 10whp sounds good, even if its 5, we all know intakes wont give you much, but i thinkmthis thread is about finding the best design that works good with other components. Heck i remember those days when i had a celica and a cai will yield you 5 or less whp, and having the risk of hydrolocking the engine, i think we r lucky we can get 5 or maybe a bit more safe whp of such s simple mod, specially 2011+ cars

 

DoS... Now with dry (no oil) filters!!!

 

Now that I'm back running my stock JCW air box, I wanted to try a different filter and compare it to the stock paper element. After a little research, I decided to try the Alta foam drop in. They advertise a small increase in HP/Torque, 8.8 HP and 5.4 ft.lb. respectively on a stock JCW. I wasn't expecting to feel much difference, but I did. Throttle response is slightly better, feeling a bit sharper. Also, you hear just a little more of the "breathing". I really happy with this set-up

On a different topic, while I had the air box open, I was looking to see if I might be able to modify it to accommodate a cylindrical filter...I'm saying no. It's very tight, and from the looks of the design, contains some baffles/chambers. That is leading me to believe more and more that the engineers have worked hard at "tuning" this piece for maximum performance. I'm still toying with the idea of adding an additional cold air passage from the bulkhead.


-Steven

 

Have you ever thought of getting the jcw 2007-2010 intake? The one that accepts the cylindrical filter?

 

Yeah, absolutely. I have my dealer pricing the lower half of the 09' box. That Stage 1 intake is most likely best of all designs. Will see, I'm still exploring adding an additional cold air duct through the bulkhead using my JCW intake.


-Steven

 

A solution is coming out for the intake in regards to strut bars. I'll keep you posted. This is really a nice intake. The heat shield alone drops the hood temps by approx. 100 degrees

 

This sounds promising, what is the time frame? Thanks!


-Steven

 

Early September. Possibly sooner.

 

laforze-

Off topic, how do you like the NM short shifter?


-Steven

 

I love it. It is one of my favorite mods. Shifts nice, tight and smooth.

 

Okay, so I installed the NM intake on my 2012 S, it does feel like I lost low end power, partly because my torque steer is practically gone after the install.

Heatsoak actually isn't bad with the grill removed, the temps drop fast after sitting in traffic. I do have a Forge FMIC so that's most likely helping the temps.

With the stock set up the temps don't recover as fast when they creep up, but it does creep up much slower then an open element.

Might go back to stock and sell the NM Intake(only put ~200miles)
I miss that crazy torque with the stock set up.

Is the power I lost on the low end moved to the top end of the power band??
Or lost altogether

Sound is cool though.

 

I experienced exactly what you did. I lost a little bit of low end power but it DEFINITELY made a difference in top end power for sure. I feel like after like around 35-40mph the car starts to really take off. Helps on the freeway.

 

I switched to stock and I see what you're talking about.
The stock intake seems to make the cars power flat line sooner unlike the open element that starts to really pull in the upper RPM's. I guess one has to sacrifice some low end for some top end.

I might actually keep it because it does get rid of most of the torque steer....plus I love dumping boost next to a Honda ricer, scares the hell out of them hahaha

 

Do you guys have any thoughts on how these compare to the DoS intake? I could see that offering the best of both worlds: Good low-end power but with pull up top as well.

 

DoS is a great intake too! I love that and DDM has a good setup with a K&N cone filter. Other than that, I will never try anything else. But I guess you might think it offers both but ask around and maybe others will tell you their experience. In my opinion I believe it does the same results as my set up. Good luck for your choice!

 

Oh trust me, I've done that a couple of times to some people;-). They're like... it's hilarious!

 

The DoS intake sounds nice...but I don't like how it looks once in the engine bay. Not to mention its pricey, and you have to cut a hole in your bulkhead. Now they sell a pre cut bulkhead but that would put you close to, or even over $500 with shipping......yea that's crazy for an intake.

IMHO they all do the same thing, suck in air, some are just packaged differently, the fancier it looks the more expensive. Look at that M7 one, that thing is crazy expensive for what it is....an intake. I would have purchased the DDM Street Intake because it's cheapest, but I wasn't sure if it would clear the NM bar I have so I went with the NM intake instead.

There is so much debate about how bad open element filters are, but I'm seeing damn good temp numbers (fmic installed as well), always hovering or at ambient temps. Not too sure if one would see the same numbers without an upgraded fmic? But that's a better place to start to see great temps during all driving situations, and fast recovery time from hard pulls.

So I see no point in spending so much on an intake, but if you want to spend your argent on one, then by all means go for it if it makes you happy


Haha, I love it when a Honda guy is next to me revving the heck out of his car and I just dump boost....shuts them up real quick, and they back off

 

Thanks for the feedback. I actually LOVE the way the DoS looks in the engine bay. But I agree the cost is a bit much.

It would be interesting to see what intake temps would look like with DoS and your aftermarket FMIC vs. the NM and your aftermarket FMIC.

The thing I like about the DoS vs. the stock setup is that it pulls air from an additional area, hopefully increasing the amount of air going in.

But I totally agree intakes are about something other than power. For me, it's all about human factors: throttle response, sounds, and appearance in the engine bay. (A little boost in MPG would be nice, too.)

 

I will say that an open intake filter in place of the OEM box holds slightly above ambient (with FMIC) and sitting in traffic will raise the IAT.. i've seen 25F above, but, once you get going, recovery is almost instant.. (talking get up to 30 and go for 10-15 seconds) and you'll be 90% back to your previous steady cruising temp.

On the stock box, same ambient temps... if you sit in traffic and let the air box heat up... it will take almost 2 minutes of constant 30+ mph driving to reach 90% temp recovery previous to sitting in traffic and heat soak.

My guess is the plastic air box retains the heat and acts almost like an oven, vs the open filter which gets surface air passed over the element as well as induction air.


Low end tq response is noticeably better with the stock intake, as has been said already, and proven by dyne graphs. Open intake gains top end.

All in all, its really down to OEM box, or aftermarket filter, between them all is a minimal difference.

Choose one and move on imo. I've been testing back and forth and those were my conclusions, ymmv.

 

You nailed it on the head. I do miss the low end from the stock box, but all the sounds and added pull in the higher rpms is addicting. I'm almost certain a tune would bring that low end torque back

 

I am tuned... :-p

 

I know you are haha. Did you tune your car with the stock intake or aftermarket? I know Jan prefers the stock box on the 2nd gens.

 

With aftermarket.

 

Hmm, wonder what would dyno better, I'd much rather be performance orientated then just bells and whistles lol.

I want my tune but I need meth! and a DP.
Don't really care of I have to take out my ecu and hand it to him. He's local to me.

I'm almost certain your car is quick, guy is meticulous when he tunes.

 

I put the jcw intake on today, the power curve is flatter, i got my low end back but i did lose some top end, seems like the response on the lower rpms is better but at higher rpms is not, definitely now i can accelerate if im in 6th and moving up from 65, which with the open filter i didnt quite instantly. It has the cone paper filter on it, maybe response changes once i change it to a different dry filter.