No more gehtto intake

4484 Views 29 Replies 13 Participants Last post by phillip28100, Apr 7, 2010

2.4LForteSX

Discussion Starter · Mar 10, 2010

Yesterday, I finally got sick of the crappy intake that I had done, so I took ALL of the stock intake stuff out and relocated the ecu and wala here it is. The first Pic is the ghetto intake but the second it the beautiful one haha and I also removed the pipe going into the head vent and put a Intake Cone there

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Johnspurs1

· #2 · Mar 10, 2010

Looks good, What did all this cost you? Keep up the good work!

2.4LForteSX

Discussion Starter · #3 · Mar 10, 2010

Thanks
I had all the parts left over from my old car but I think it cost about $50 for everything

MFury

· #4 · Mar 10, 2010

What is supporting the intake to keep it from banging around during torque? My last car had this setup and I didn't support the intake at all resulting in the cone nearly rubbing through my AC aluminum line.

2.4LForteSX

Discussion Starter · #5 · Mar 11, 2010

The cone itself isn't sitting on anything, its mainly just the tube holding it lol..I plan on making a bracket for it when i get money, but I do know what you mean. That mesh can be like a razor..

KiaTech

· #6 · Mar 11, 2010

I am really wondering about the advantages of this system, as you've completely eliminated any chance of cooler intake air, as the original system would provide? Did you run any baseline numbers for intake air temps or are you able to get some now? My main concern is while you may have reduced restriction, you may have increased air temp - therefore completely defeating the purpose.

I may run my own testing on this over the weekend... not from a 'hp gain' stand as I have no dyno, but as an 'intake air temp' change as that can drastically affect performance.

2.4LForteSX

Discussion Starter · #7 · Mar 11, 2010

KiaTech said:
I am really wondering about the advantages of this system, as you've completely eliminated any chance of cooler intake air, as the original system would provide? Did you run any baseline numbers for intake air temps or are you able to get some now? My main concern is while you may have reduced restriction, you may have increased air temp - therefore completely defeating the purpose.

I may run my own testing on this over the weekend... not from a 'hp gain' stand as I have no dyno, but as an 'intake air temp' change as that can drastically affect performance.

It runs better in the high end but has less torque in the bottom end, im to cheap to spend the money to make it a cai and wont have the car after july anyways

(building a 240sx) so i said screw it lol, but u can hear it sucking air like crazy when u are wot, but i can tell a difference in the high end but the low end is def weaker, but hey at least I dont have anymore wheel spin haha.

xSilverX9x

· #8 · Mar 11, 2010

The intake was being made for KIA of Canada. Unfortunately, their design didn't help the car's performance--it actually hurt it. This is all I know. My car wasn't baselined either which means that we are still missing a stock Koup w/ auto.

From my understanding, putting an intake in the forte actually hurts performance..

polishmadman

· #9 · Mar 11, 2010

anthonydv07 said:
From my understanding, putting an intake in the forte actually hurts performance..

no, only the setup that AEM was trying to make. Turbokits.com proved you can. If you left the stock airdam there, you probably would have better gains all around.

xSilverX9x

· #10 · Mar 11, 2010

polishmadman said:
no, only the setup that AEM was trying to make. Turbokits.com proved you can. If you left the stock airdam there, you probably would have better gains all around.

Thanks for clarifying that...

CrashVector

· #11 · Mar 23, 2010

polishmadman said:
no, only the setup that AEM was trying to make. Turbokits.com proved you can. If you left the stock airdam there, you probably would have better gains all around.

so you are saying to leave the original front scoop in ro force cooler air into the engine compartment right? I installed an intake but my filter is behing the left headlight.

TK87

· #12 · Mar 24, 2010

What did you do with the ECM? I ran my intake down under the battery and wanted to remove the airbox but I really don't want the ECM just flopping around.

2.4LForteSX

Discussion Starter · #13 · Mar 24, 2010

TK87 said:
What did you do with the ECM? I ran my intake down under the battery and wanted to remove the airbox but I really don't want the ECM just flopping around.

I used the circles that the screws went through and used zip ties and zip tied it to the side there. It holds really nice but its only temp. i plan on doing something better down the road haha

soar4fun

· #14 · Mar 24, 2010

Chiming in here... The AEM design was to keep the stock air box but change the intake tubing portion... That's all I know.

BTW: My intake tube like this ShortRam dynoed at 151 on an Auto! So it did make a difference up top. The car pulled much harder with VTEC and the open intake..The trade off was reduced MPG! :-(

So, I went back to the K&N with stock factory intake. It made 147WHP vs. 151WHP a delta of 4WHP.

My suggestion is to keep the tubing near the same size as the Throttle body for best over all gains....Mine was 3" which was too big.

2.4LForteSX

Discussion Starter · #15 · Mar 24, 2010

soar4fun said:
Chiming in here... The AEM design was to keep the stock air box but change the intake tubing portion... That's all I know.

BTW: My intake tube like this ShortRam dynoed at 151 on an Auto! So it did make a difference up top. The car pulled much harder with VTEC and the open intake..The trade off was reduced MPG! :-(

So, I went back to the K&N with stock factory intake. It made 147WHP vs. 151WHP a delta of 4WHP.

My suggestion is to keep the tubing near the same size as the Throttle body for best over all gains....Mine was 3" which was too big.

Really wow that is impressive for a ram air intake.

thanks for the input...i def. do feel it on the top end. lets just say i eat alot of scion tc's but unfortunately haven't had the chance to race a civic..and like you said, my intake tube is the perfect size and flows right into the throttle body, its the same diameter as the throttle body...

gripphard

· #16 · Mar 24, 2010

The car pulled much harder with VTEC

I'm shocked at such verbiage on a KDM forum...there's NO vtech here

[email protected]

· #17 · Mar 24, 2010 (Edited)

"I am really wondering about the advantages of this system, as you've completely eliminated any chance of cooler intake air" - this is probably true -

" My main concern is while you may have reduced restriction, you may have increased air temp - therefore completely defeating the purpose." - this is possibly true as well.

I may run my own testing on this over the weekend... not from a 'hp gain' stand as I have no dyno, but as an 'intake air temp' change as that can drastically affect performance.

Good idea - let us know how that turns out.

KiaTech

· #18 · Mar 24, 2010 (Edited)

Edited since the post I replied to was edited and now my post is just completely out of place and looks kind of odd...

But this is MUCH better, now isn't it?

[email protected]

· #19 · Mar 24, 2010 (Edited)

Don't worry nobody is going to flame ya -

KiaTech

· #20 · Apr 1, 2010

So I just finished a really fun little experiment, and the results are certainly interesting.

I hooked up our scan tool, and looked at ambient temperature, coolant temp, and intake air temp. I ran two runs, one with the stock filter setup, and one with the snorkel removed. This simulates the same as if I had a big round filter sitting on top of the transmission.

I completed this all within about 20 minutes, so ambient didn't change, and was 10 degrees (all temps in Celsius). Engine was at full operating temp, 85.5 degrees at the time of measurement. Runs were completed cruising on the same stretch of road, in the same direction to account for wind, and at the same speed (100 km/h).

With the factory intake in place, I had an intake temp of 18.5 degrees.
With the snorkel removed, that temp jumps to 28.5 degrees, a full 10 degrees higher.

The rule of thumb for intake temp vs. Hp is every 10 degrees Fahrenheit increase will lower HP by 1%. So...

18C = 64F. 28C = 82F. 82 - 64 = 18F. So approximately a 2% HP loss would be expected due to the higher intake temps that the 'improved' open-filter will 'gain'.

Rather interesting... sure my methods are rather simple, but I used the same info the car uses to make the power everyone is so interested in scavenging. So really... my methods may be about as complete as possible. Short of a dyno (which then removes the effects of motion, which is a HUGE contributor to the complete experiment) to measure actual output... this really is as good as it gets.

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