99+ Intake manifold and butterfiles.

MrJayDeem · 11-12-2009, 04:11 PM

I was wonder how do they work. Are they something like a Acura Integra Gsr intake manifold with 4 butterfiles in them? I was wondering if I will notice a better throttle responds and maybe HP if I take them out and cut the ceiling out?

Nev · 11-12-2009, 05:55 PM

it closes off the shortest path to the valves during low revs to give more torque, then opens both on the high end. you might gain a little max power from boring it out, but your low end will suck.

MrJayDeem · 11-12-2009, 05:57 PM

What if I drill out the ceiling part out but leave the butterflies there? Like this one for example.

Nev · 11-12-2009, 05:59 PM

it doesnt look exactly like that diagram. i think you'll find theres not a lot of material to remove once you tear into it. either way, we're talking maximum +3hp

MrJayDeem · 11-12-2009, 06:05 PM

If it hurts low end torque then I don't even want to do it. I wish there was a dyno chart of this mod.

halfdemonpyro · 11-12-2009, 11:39 PM

949 racing tested it and aparently its only worth 1-2 hp on the dyno at very high rpm it dosent change the intake runner length on the 99-00 intake, it just changes plenum volume. not a massive difference really, and unless you are going all out where that one maybe 2 hp is needed, not worth it. i just left the vics unhooked and enjoy the power from 4.5k and up.

MrJayDeem · 11-12-2009, 11:45 PM

where is this vics is located?

halfdemonpyro · 11-12-2009, 11:49 PM

take a look at the illustration, see right where it splits the flow? its right where the shorter 'runners' meet the longer. and instead of going all the way through there is a plate above it in the main plenum keeping it a seperate piece. sort of a resonance chamber....

halfdemonpyro · 11-12-2009, 11:52 PM

from my butt dyno, since i dont have the 00 computer to go with my motor... i can either put vacume to the solonoid or not. with vacume, it seems to have a little more bottom end. with it removed, it really pulls above 4.5k but seems to become, well i would describe it as lacking in brightness...

MrJayDeem · 11-13-2009, 12:09 AM

I'm trying to figure out the vaccum port you are talking about. I wanna to plug it and see the diff between plugged up and plugged off.

halfdemonpyro · 11-13-2009, 12:47 AM

theres a little round can right under the bend in the intake just behind the throttle body with a line running to it. disconect and pulg it *i used a valve to make life easier for me* and you will have top end 'mode'. if you apply constant vaccum to it you will now have low end 'mode'. but seeing as you have a 99 already, the computer keeps it where it needs to be and you wont really see any benifit off of bypassing the already functioning system.

MrJayDeem · 11-13-2009, 02:19 AM

What if I swapped intake manifolds? From a older 1.8l?

Doppelganger · 11-13-2009, 07:12 AM

There is no real gain to messing with any intake manifold on any stock n/a...even turbo carsrunning under 250hp don't see much gain. The only manifold worth messing with is the 01+ to gut the cold-start butterflies because they impeed air flow.

Like halfdemonpyro said, it's not a dual intake runner setup like a Honduh, the butterflies open a resonance chamber that changes the intake pulse frequency to smooth airflow at higher RPMs. Some people who drive their cars at high RPM all the time (track/autoX) will guy the NB intakes for improved flow and throttle response..but the gains are small....but in classed racing where 2rwhp makes a difference, it matters. For a daily driven car, there really is no point.

Hyper · 11-13-2009, 02:01 PM

Quote:

Originally Posted by Doppelganger

There is no real gain to messing with any intake manifold on any stock n/a...even turbo carsrunning under 250hp don't see much gain. The only manifold worth messing with is the 01+ to gut the cold-start butterflies because they impeed air flow.

Like halfdemonpyro said, it's not a dual intake runner setup like a Honduh, the butterflies open a resonance chamber that changes the intake pulse frequency to smooth airflow at higher RPMs. Some people who drive their cars at high RPM all the time (track/autoX) will guy the NB intakes for improved flow and throttle response..but the gains are small....but in classed racing where 2rwhp makes a difference, it matters. For a daily driven car, there really is no point.

I am working on ideas to come up with a win-win design. I will post some pics in a little bit... this is for 01 intake manifold.

Doppelganger · 11-13-2009, 02:17 PM

Quote:

Originally Posted by Hyper

I am working on ideas to come up with a win-win design. I will post some pics in a little bit... this is for 01 intake manifold.

Oh shit

*looks at knee-high rubber boots*

nah

*grabs scuba gear*

Hyper · 11-13-2009, 02:33 PM

Quote:

Originally Posted by Doppelganger

Oh shit

*looks at knee-high rubber boots*

nah

*grabs scuba gear*

. . . don't tell me.. your shiting in your pants? ah??

Nev · 11-13-2009, 03:38 PM

Quote:

Originally Posted by Hyper

. . . don't tell me.. your shiting in your pants? ah??

Hyper · 11-13-2009, 03:44 PM

shit like my 4th post and Nev already started hating..

nev. what do you prefer lightsaber counterattack? or Tony Montana's machine gun??

Nev · 11-13-2009, 03:48 PM

Quote:

Originally Posted by Hyper

shit like my 4th post and Nev already started hating..

nev. what do you prefer lightsaber counterattack? or Tony Montana's machine gun??

I'm serious, get that shit right out of here. Nobody wants to hear your horse shit.

Hyper · 11-13-2009, 03:59 PM

Quote:

Originally Posted by Nev

I'm serious, get that shit right out of here. Nobody wants to hear your horse shit.

suck my balls. and paint your lips again. faggot.

Do you have anything to add to this post except for hating???

James May's Hair · 11-13-2009, 04:36 PM

Would it be too much to ask, I wonder, for this Hyper chap to simply stop being alive? It's been my experience that no good comes of his participation in these matters.

nannerpus · 11-13-2009, 04:43 PM

One day back and it's happening again. I love Hyper.

Hyper · 11-13-2009, 04:48 PM

Quote:

Originally Posted by James May's Hair

Would it be too much to ask, I wonder, for this Hyper chap to simply stop being alive? It's been my experience that no good comes of his participation in these matters.

I always have something to contribute to this forum if the members remain calm. You just haven't seen anything yet. . .

Nev · 11-13-2009, 04:55 PM

Quote:

Originally Posted by Hyper

I always have something to contribute to this forum if the members remain calm. You just haven't seen anything yet. . .

Max_Power · 11-13-2009, 05:13 PM

Quote:

Originally Posted by MrJayDeem

What if I swapped intake manifolds? From a older 1.8l?

It doesn't fit, you will also need to modify it if you want to install it.
By the way I gutted out my intake manifold but I never dyno tested it since I decided to go with a BEGI turbo IM at the last minute.

Hyper · 11-13-2009, 05:15 PM

Quote:

Originally Posted by Max_Power

It doesn't fit, you will also need to modify it if you want to install it.
By the way I gutted out my intake manifold but I never dyno tested it since I decided to go with a BEGI turbo IM at the last minute.

What did you do to the lower manifold? Did you leave it stock?

Max_Power · 11-13-2009, 05:44 PM

Quote:

Originally Posted by Hyper

What did you do to the lower manifold? Did you leave it stock?

No I gutted out both sides - this should be beneficial on a turbo car but I'm not sure about NAs.
Bill and I were trying to do an ideal job so we ended up cutting holes in the IM.
After visiting the welder for 3rd time I decided that it would be easier just to get a BEGI turbo IM. :rolleyes:

James May's Hair · 11-13-2009, 05:55 PM

Quote:

Originally Posted by Hyper

I always have something to contribute to this forum if the members remain calm.

You misunderstand, I'm afraid. It's not that you have nothing to contribute, it's merely that your contributions seem to be limited to name-calling, tomfoolery, and ideas which betray an utter lack of appreciation for physics and reality.

I'd be happy to be proven wrong, of course.

As to the matter at hand, has anyone measured (or at least approximated) the effective interior volumes of the NB intake manifold with the secondary plates open and closed? Since the overall geometry is quite similar, it seems that by comparing this measurement to that of an equivalent NA manifold, a reasonable judgement as to the likely performance characteristics of a modified manifold could be made.

MrJayDeem · 11-13-2009, 06:14 PM

Quote:

Originally Posted by Max_Power

It doesn't fit, you will also need to modify it if you want to install it.
By the way I gutted out my intake manifold but I never dyno tested it since I decided to go with a BEGI turbo IM at the last minute.

Damn, that hellva gutting you did. Let me know if you noticed any diff.

Max_Power · 11-13-2009, 06:44 PM

Quote:

Originally Posted by MrJayDeem

Damn, that hellva gutting you did. Let me know if you noticed any diff.

I wouldn't bother too much if I didn't have turbo or Supercharger.
On a NA car you might actually loose some torque low end... but in general most of the people with modified cars they remove them since they can't control them...

11-12-2009, 04:11 PM	#1 (permalink)
MrJayDeem Member Join Date: Oct 2009 Location: Charlottesville, Va Posts: 245	99+ Intake manifold and butterfiles. I was wonder how do they work. Are they something like a Acura Integra Gsr intake manifold with 4 butterfiles in them? I was wondering if I will notice a better throttle responds and maybe HP if I take them out and cut the ceiling out?
	__________________ "Gotta beat the shit out of everything to keep it lubricated"

11-12-2009, 05:57 PM	#3 (permalink)
MrJayDeem Member Join Date: Oct 2009 Location: Charlottesville, Va Posts: 245	Re: 99+ Intake manifold and butterfiles. What if I drill out the ceiling part out but leave the butterflies there? Like this one for example.
	__________________ "Gotta beat the shit out of everything to keep it lubricated"

11-12-2009, 06:05 PM	#5 (permalink)
MrJayDeem Member Join Date: Oct 2009 Location: Charlottesville, Va Posts: 245	Re: 99+ Intake manifold and butterfiles. If it hurts low end torque then I don't even want to do it. I wish there was a dyno chart of this mod.
	__________________ "Gotta beat the shit out of everything to keep it lubricated"

11-12-2009, 11:39 PM	#6 (permalink)
halfdemonpyro Senior Member Join Date: Feb 2009 Location: Tehachapi, CA Posts: 2,642	Re: 99+ Intake manifold and butterfiles. 949 racing tested it and aparently its only worth 1-2 hp on the dyno at very high rpm it dosent change the intake runner length on the 99-00 intake, it just changes plenum volume. not a massive difference really, and unless you are going all out where that one maybe 2 hp is needed, not worth it. i just left the vics unhooked and enjoy the power from 4.5k and up.
	__________________ 95, '00 motor, Tein Flex 9k-6k, 2100 lbs, no more turbo turbo parts for sale 92 prelude h22a, gf's daily and the family car

11-12-2009, 11:45 PM	#7 (permalink)
MrJayDeem Member Join Date: Oct 2009 Location: Charlottesville, Va Posts: 245	Re: 99+ Intake manifold and butterfiles. where is this vics is located?
	__________________ "Gotta beat the shit out of everything to keep it lubricated"

11-12-2009, 11:49 PM	#8 (permalink)
halfdemonpyro Senior Member Join Date: Feb 2009 Location: Tehachapi, CA Posts: 2,642	Re: 99+ Intake manifold and butterfiles. take a look at the illustration, see right where it splits the flow? its right where the shorter 'runners' meet the longer. and instead of going all the way through there is a plate above it in the main plenum keeping it a seperate piece. sort of a resonance chamber....
	__________________ 95, '00 motor, Tein Flex 9k-6k, 2100 lbs, no more turbo turbo parts for sale 92 prelude h22a, gf's daily and the family car

11-12-2009, 11:52 PM	#9 (permalink)
halfdemonpyro Senior Member Join Date: Feb 2009 Location: Tehachapi, CA Posts: 2,642	Re: 99+ Intake manifold and butterfiles. from my butt dyno, since i dont have the 00 computer to go with my motor... i can either put vacume to the solonoid or not. with vacume, it seems to have a little more bottom end. with it removed, it really pulls above 4.5k but seems to become, well i would describe it as lacking in brightness...
	__________________ 95, '00 motor, Tein Flex 9k-6k, 2100 lbs, no more turbo turbo parts for sale 92 prelude h22a, gf's daily and the family car

11-13-2009, 12:09 AM	#10 (permalink)
MrJayDeem Member Join Date: Oct 2009 Location: Charlottesville, Va Posts: 245	Re: 99+ Intake manifold and butterfiles. I'm trying to figure out the vaccum port you are talking about. I wanna to plug it and see the diff between plugged up and plugged off.
	__________________ "Gotta beat the shit out of everything to keep it lubricated"

11-13-2009, 12:47 AM	#11 (permalink)
halfdemonpyro Senior Member Join Date: Feb 2009 Location: Tehachapi, CA Posts: 2,642	Re: 99+ Intake manifold and butterfiles. theres a little round can right under the bend in the intake just behind the throttle body with a line running to it. disconect and pulg it i used a valve to make life easier for me and you will have top end 'mode'. if you apply constant vaccum to it you will now have low end 'mode'. but seeing as you have a 99 already, the computer keeps it where it needs to be and you wont really see any benifit off of bypassing the already functioning system.
	__________________ 95, '00 motor, Tein Flex 9k-6k, 2100 lbs, no more turbo turbo parts for sale 92 prelude h22a, gf's daily and the family car

11-13-2009, 02:19 AM	#12 (permalink)
MrJayDeem Member Join Date: Oct 2009 Location: Charlottesville, Va Posts: 245	Re: 99+ Intake manifold and butterfiles. What if I swapped intake manifolds? From a older 1.8l?
	__________________ "Gotta beat the shit out of everything to keep it lubricated"

11-13-2009, 07:12 AM	#13 (permalink)
Doppelganger Lit like a BranchDavidian Join Date: May 2006 Location: Atlanta Gee EH Posts: 4,514	Re: 99+ Intake manifold and butterfiles. There is no real gain to messing with any intake manifold on any stock n/a...even turbo carsrunning under 250hp don't see much gain. The only manifold worth messing with is the 01+ to gut the cold-start butterflies because they impeed air flow. Like halfdemonpyro said, it's not a dual intake runner setup like a Honduh, the butterflies open a resonance chamber that changes the intake pulse frequency to smooth airflow at higher RPMs. Some people who drive their cars at high RPM all the time (track/autoX) will guy the NB intakes for improved flow and throttle response..but the gains are small....but in classed racing where 2rwhp makes a difference, it matters. For a daily driven car, there really is no point.
	__________________ The car is on fire, and there is no driver at the wheel. 2002 Ti SE Turbo Cardomain MyAwesomeFlickr Last edited by Doppelganger; 11-13-2009 at 07:15 AM.

11-13-2009, 03:44 PM	#18 (permalink)
Hyper Banned Join Date: Apr 2006 Location: Miami, Florida Posts: 2,419	Re: 99+ Intake manifold and butterfiles. shit like my 4th post and Nev already started hating.. nev. what do you prefer lightsaber counterattack? or Tony Montana's machine gun??

11-13-2009, 04:36 PM	#21 (permalink)
James May's Hair Noob Join Date: Nov 2007 Posts: 39	Re: 99+ Intake manifold and butterfiles. Would it be too much to ask, I wonder, for this Hyper chap to simply stop being alive? It's been my experience that no good comes of his participation in these matters.
James May's Hair Noob Join Date: Nov 2007 Posts: 39

11-13-2009, 04:43 PM	#22 (permalink)
nannerpus ┐('～`；)┌ Join Date: Jan 2007 Location: Texas. Posts: 6,215	Re: 99+ Intake manifold and butterfiles. One day back and it's happening again. I love Hyper.
	__________________

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