X intake DIY + Install vids + AFR and Dyno Comparisons - Page 13

**CaliGuy** · 01-06-2008, 02:12 AM

Quote:

Originally Posted by I Vtec, do you?

Cali your dynos look sick, congrats.

If I buy one of these already made by ex, are they each dyno'd to ensure the A/Fs won't be way off on each car? Because that would be hella expensive, but I don't see how you can get around that.

The AFR's will all be the same (or damn near the same) as he uses exact specs when modding the MAFs..The reason I stressed getting a dyno in the DIY is that if you DIY you might not have done it correctly...

I Vtec, do you? · 01-06-2008, 02:27 AM

Oh gotcha, that makes sense.

Bboy_Burst · 01-06-2008, 03:15 AM

This Might Be A Newb Question, But Wouldn't It Be Better Just To Remove The Two Fins Than To Sand It Down ??

**Qshooter151** · 01-06-2008, 03:16 AM

Quote:

Originally Posted by Bboy_Burst

This Might Be A Newb Question, But Wouldn't It Be Better Just To Remove The Two Fins Than To Sand It Down ??

no.

**ErichPryde** · 01-06-2008, 05:15 AM

X and Cali- I can't rep either one of you at the moment, but both of you deserve it. Thank you very much. I can't say how much I appreciate you two getting together and doing this.

hawk and I did this a while back to our stock lids, but this DIY reinforces the belief I had essentially put into X that his intake is far superior to anything else on the market right now.

Emmanuel- thank you, you have my respect. I modified my airbox, but if I ever decide to go back to an SRI (I've been thinking about it) you'll have my order.

**ErichPryde** · 01-06-2008, 05:16 AM

Quote:

Originally Posted by 20strong

Is the 5 deg. angle all the way from the front to back? Could you do this type of mod on a SRI? If you say cut back to the maf housing?

you couldn't do a 5 degree angle all the way back.

Quote:

Originally Posted by Bboy_Burst

This Might Be A Newb Question, But Wouldn't It Be Better Just To Remove The Two Fins Than To Sand It Down ??

no- the fins are EXACTY that- fins. a fin guides a fish through the water, or a rocket through the sky, &c. the fins in your maf housing guide air around the MAF itself. removing them would not be a good plan, and once you start thinking about it, it really makes sense.

Bboy_Burst · 01-06-2008, 06:24 AM

Quote:

Originally Posted by ErichPryde

no- the fins are EXACTY that- fins. a fin guides a fish through the water, or a rocket through the sky, &c. the fins in your maf housing guide air around the MAF itself. removing them would not be a good plan, and once you start thinking about it, it really makes sense.

But, There Is No Need For A Guide/Fins, Is There ?? Once The Air Are In The Tube, It Only Goes On Way And That Is Toward The Engine, Right ?? And Wouldn't Removing The Fins Allow More Air To Be Adsorb ??

acetylcholine · 01-06-2008, 12:22 PM

Quote:

Originally Posted by Bboy_Burst

But, There Is No Need For A Guide/Fins, Is There ?? Once The Air Are In The Tube, It Only Goes On Way And That Is Toward The Engine, Right ?? And Wouldn't Removing The Fins Allow More Air To Be Adsorb ??

I gotta jump in on this. I've read the multiple threads on the X intake, finally, and i think i can chime in.

BBoy_Burst, the fins are guide vanes to keep the airflow laminar past the MAF sensor, keeping it smooth and even across the area that the sensor measures. As I take it from some other posts, its measuring the flow, not the pressure, as as such, a laminar flow seems to be what the sensor needs, hence Honda's guide vanes.

My Si is stock for now, but it sounds like most/all of the aftermarket SRIs and CAIs have no guide vanes, which sounds like is resulting in a turbulent airflow in the area of the MAF sensor.

X and Cali, thanks for the DIY and vids! I think im finally convinced that i'm going to build one of these sooner or later :)

hawjdude · 01-06-2008, 12:45 PM

15whp gain and a good looking a/f chart. congrats. this is definitely the intake we've all been waiting for. caliguy, obvious question, but i gotta ask, can you feel that 15 whp difference from stock??

**CaliGuy** · 01-06-2008, 03:06 PM

Quote:

Originally Posted by hawjdude

15whp gain and a good looking a/f chart. congrats. this is definitely the intake we've all been waiting for. caliguy, obvious question, but i gotta ask, can you feel that 15 whp difference from stock??

That's 15 whp with P2R IMG, P2R TB Spacer, and X intake. X intake is probably good for 10-12 whp. Yes, I can feel it!

Bboy_Burst · 01-06-2008, 04:40 PM

Quote:

Originally Posted by acetylcholine

I gotta jump in on this. I've read the multiple threads on the X intake, finally, and i think i can chime in.

BBoy_Burst, the fins are guide vanes to keep the airflow laminar past the MAF sensor, keeping it smooth and even across the area that the sensor measures. As I take it from some other posts, its measuring the flow, not the pressure, as as such, a laminar flow seems to be what the sensor needs, hence Honda's guide vanes.

My Si is stock for now, but it sounds like most/all of the aftermarket SRIs and CAIs have no guide vanes, which sounds like is resulting in a turbulent airflow in the area of the MAF sensor.

So The Measure Of Air Flow Makes The HP, Not The Amount ??

07FG2 · 01-06-2008, 06:12 PM

that is amazing.... i am thinking about doing it my self but as long as you have the 5 degree angle your a/f should be fine right...

**ErichPryde** · 01-07-2008, 02:59 AM

Quote:

Originally Posted by Bboy_Burst

So The Measure Of Air Flow Makes The HP, Not The Amount ??

I am theorizing a little here- but everywhere that you move restrictions on air flow (even if you don't increase the total potential volume of flow) you are increasing the amount of air that can go into the engine per minute, second, &c.

maybe this isn't right, but reducing the drag that the stock fins can be causing makes sense. In fact, I have to wonder if anyone at honda actually thought of making the fins angled in order to cut the air better...

***0720Steve*** · 01-07-2008, 12:57 PM

so you can reuse the factory clamps and such, you just need the crv tube and the filter? and then the mouting bracket. where is the pic of that?

**Qshooter151** · 01-07-2008, 10:11 PM

almost done...

KSE · 01-07-2008, 10:17 PM

nice...

soxfan143 · 01-07-2008, 10:22 PM

Looking good Q. I have to get rid of this HKS filter I have. Not only does the Apexi out flow and out filter it, it looks so much better. I hate my HKS filter. But it was the only one that I could find with an 80mm flange at the time.

I need to get a red coupler. I like that. I can't wait to hear what you have to say the first time you get on it. It suprised the s*** out of me. It's so fun. And it sounds so good in vtec. Good luck bro.

**CaliGuy** · 01-07-2008, 10:24 PM

Looks great Q! Let us know how it feels!

**CrackThatTec45** · 01-07-2008, 10:26 PM

Quote:

Originally Posted by Qshooter151

almost done...

we find out the 20th!!

01-07-2008, 10:11 PM	#255 (permalink)
Qshooter151 Moderator Join Date: Dec 2006 Location: Poughkeepsie, NY Posts: 18,284 Jordan iTrader: 29 / 100%	almost done... __________________ Wanna go to VA and get crabs? click here Poughkeepsie, NY--->weekly meet, click here *New rules for selling items on 8thcivic effective 8/1/08...click here*

01-07-2008, 10:24 PM	#258 (permalink)
CaliGuy Senior Member Join Date: May 2006 Location: SoCal Age: 30 Posts: 10,523 J. M. back by popular demand! iTrader: 4 / 100%	Looks great Q! Let us know how it feels! __________________ Visit my city! Free vagin for every resident (in direct contrast to the other cities that only provide free Fleshlites!) http://eat-mykhram.myminicity.com/

01-06-2008, 02:27 AM	#242 (permalink)
I Vtec, do you? Senior Member Join Date: Jan 2007 Location: mn Posts: 7,284 iTrader: 7 / 100%	Oh gotcha, that makes sense.

01-06-2008, 03:15 AM	#243 (permalink)
Bboy_Burst Senior Member Join Date: Jul 2007 Location: Union City, CA Age: 21 Posts: 490 iTrader: 1 / 100%	This Might Be A Newb Question, But Wouldn't It Be Better Just To Remove The Two Fins Than To Sand It Down ??

01-06-2008, 12:45 PM	#249 (permalink)
hawjdude Senior Member Join Date: Aug 2006 Location: MN Posts: 459 iTrader: 0 / 0%	15whp gain and a good looking a/f chart. congrats. this is definitely the intake we've all been waiting for. caliguy, obvious question, but i gotta ask, can you feel that 15 whp difference from stock??

01-06-2008, 06:12 PM	#252 (permalink)
07FG2 Member Join Date: Sep 2007 Location: panama city fl Age: 21 Posts: 72 Brandon iTrader: 0 / 0%	that is amazing.... i am thinking about doing it my self but as long as you have the 5 degree angle your a/f should be fine right...

01-07-2008, 12:57 PM	#254 (permalink)
*0720Steve* TWFA5FTMFW Join Date: Feb 2007 Location: San Diego Age: 25 Posts: 23,866 Resident Si Sedan Hater Hater iTrader: 9 / 100%	so you can reuse the factory clamps and such, you just need the crv tube and the filter? and then the mouting bracket. where is the pic of that?

01-07-2008, 10:17 PM	#256 (permalink)
KSE Senior Member Join Date: Oct 2007 Location: socal 818 Age: 21 Posts: 750 Albert iTrader: 7 / 100%	nice...

01-07-2008, 10:22 PM	#257 (permalink)
soxfan143 Senior Member Join Date: Nov 2007 Location: Lynnfield, MA Age: 34 Posts: 2,039 Mike iTrader: 2 / 100%	Looking good Q. I have to get rid of this HKS filter I have. Not only does the Apexi out flow and out filter it, it looks so much better. I hate my HKS filter. But it was the only one that I could find with an 80mm flange at the time. I need to get a red coupler. I like that. I can't wait to hear what you have to say the first time you get on it. It suprised the s*** out of me. It's so fun. And it sounds so good in vtec. Good luck bro.