Intake and headers.. Need advice from part owners

[Slippi84]

I don't buy into their dual chamber voodoo. I have never heard anything outside of their marketing propaganda that would compel me to consider this "technology".

I still stand by my "a pipe is a pipe" theory, not understanding how a pipe in a pipe can out perform the former.

Trust me I have seen the kits in person having installed 3 for friends and custom made one myself for my own car and seen the diffrence its' not propaganda not to mention they have dyno comparisons not just threw their company but threw copanies liek weapon R which by the way makes more hp then even K&N but everyone gets caufght up in the K&N name and what not. I had a 2.5" intake cold air on my eclipse a friend got rid of his vibrant intake I took his 3" section replaced my lower section with the new 3" section and noticed a def improvement from before threwout the entire band and no I don't have any dyno numbers or whatnot but I know my car and I know this was def a better performing car after the mod and that mod alone maybe 10 min after driving it with the old intake.

 

[bullettdsm]

Slippi gimmee a link or you can try to 'splain it to me. I really have no idea of what you are talking about.

MB

 

[all_motor_mike]

this was on your stock throttle body right slippi? thats gonna be your choke point in the induction system. i dont see how you going from a 3" to a 2.5" diameter in the intake pipe made a noticable difference in power when its all still gotta go through the tiny stock throttle body. (or was it a 60mm mpx or something) but then again that same theory still stands......... and how did you connect the 3" section to the 2.5" section?

mike

 

[Slo2gen]

I have the V2 and I love it! I have the first header posted and I hate it. Def. get one with a flange on it!

 

[Slippi84]

Slippi gimmee a link or you can try to 'splain it to me. I really have no idea of what you are talking about.

MB

Here you go mike

 

[JWoodley]

The overall best modification I did for my 420A was a ported/polished stock intake manifold and a Modern Performance 60mm throttle body. The car was a completely different animal after the install. At one point I did have every available bolt-on for it. Just a FYI, the intake manifold and TB were my last mods.

I ran:
AEM v2 CAI
Greddy Header/DP
Testpipe
Greddy EVO catback
AFX UDP (second best mod)
Crankscraper
Screamin' Demon Coilpack
Crane Wires
ported/polished stock intake manifold
MP 60mm TB

The best I ever ran was a 9.68 @ 72 or so with a 2.1 60 foot in the 1/8. Soon thereafter I was bitten by the boost bug. I parted my GS out and put her back to stock (minus coil/wires and UDP).

I don't really have much info on the header design, but the Greddy was 4-2-1. I liked it, made the exhaust note deeper at idle.

Goodluck!

 

[Slippi84]

this was on your stock throttle body right slippi? thats gonna be your choke point in the induction system. i dont see how you going from a 3" to a 2.5" diameter in the intake pipe made a noticable difference in power when its all still gotta go through the tiny stock throttle body. (or was it a 60mm mpx or something) but then again that same theory still stands......... and how did you connect the 3" section to the 2.5" section?

mike

I don't know enough about the specs and science of it to eeven attempt to try and educate someone like you mike as you deal with aspects that don't even come to my mind but check out AEM's site as they explain the dual chamber idea very well. I just looked at Weapon R they use the same idea of dual chamber on their secret weapn intake just they use what's like a pipe inside a pipe to use two diffrent velocities but I have never used something like that. All I know is that I had a coupler and a 2.5" pipe hooked up to a filter, I took that section out replaced it with a turbo 3"-2.5" reducer I had from when I had my 90 tsi and replaced it with the already talked about 3: intake section that put the filter in the same place same filter ect.. With just changing that section the car gained back low end power I had lost from putting my larger exhaust on and pulled better overall threwout the entire band. That's my experience with our engines in the said intake design. I have seen numerous V2's make VERY noticable diffrences on diffrent cars so I can't use that as a good example but mine shows that it is better.

 

[bullettdsm]

Here you go Mark

^^^ no problem, . I get Matt, Mike and Mark. Funny when people meet me face to face, I get a**hole and d***head. Huh go figger.

Ok, I see now. I also understand the "charge theory" We would actually do that with a designed box (but I digress).

You guys may hate me for this, but I kinda like what is going on (but for a different reason) with the pipe. I'm in the process fabbing an intake up that actually uses the same principles. I just can't find the right length and positioning I want. I'm believing they may have gained some power but not necessarily peak power. I'm thinking that the length is too long for my liking.

As for a pipe is just a pipe, that still holds true. Just in this case, you are using 2 different size pipes (eh, a little semantic, but true).

MB

 

[Slippi84]

^^^ no problem, . I get Matt, Mike and Mark. Funny when people meet me face to face, I get a**hole and d***head. Huh go figger.

Ok, I see now. I also understand the "charge theory" We would actually do that with a designed box (but I digress).

You guys may hate me for this, but I kinda like what is going on (but for a different reason) with the pipe. I'm in the process fabbing an intake up that actually uses the same principles. I just can't find the right length and positioning I want. I'm believing they may have gained some power but not necessarily peak power. I'm thinking that the length is too long for my liking.

As for a pipe is just a pipe, that still holds true. Just in this case, you are using 2 different size pipes (eh, a little semantic, but true).

MB

My bad I didn't even look I thought it was all motor that put that I didn't even see that MARK .

 

[all_motor_mike]

i havent gone to aem's website but i was thinking about it and if it is tapered like that inside the pie then i can see where a venturi effect would take place and the air coming from the 3" and into the 2.5" pipe would speed up a bit casuning a little bit more velocity before going through the t-body and into the manifold and into the ports........ and im thinking that would happen at all rpms so u would see it accross the board on a dyno. ok i wont discredit it as much now........ but a dyno comparison from somebody other than aem would be the best proof u know.


mike

 

[Locke]

if it is tapered like that inside the pie then i can see where a venturi effect would take place and the air coming from the 3" and into the 2.5" pipe would speed up a bit casuning a little bit more velocity before going through the t-body and into the manifold and into the ports.

But you would need a venturi for the Venturi effect to happen. (a symmetrical obstruction placed inside a tube)

Don't forget that it is vacuum which is drawing air in through the stepped tube. The velocity of the air moving through the 2.5" section of the stepped pipe would be the same as the velocity of air moving through a complete 2.5" intake.

Stepping pipe sizes in an exhaust system can yield noticeable gains if properly designed, as exhaust gas temperature's can drop rapidly as they leave the engine. Intake temperatures before the IM will not see such a radical change in temperature, though.

AEM V2 Induction Systems utilize a dual chamber to create multiple frequency sound waves.

This is the only information I could find about the AEM v2 Intake. I don't see multiple frequency sound waves doing any good without points of reflection. I still am not buying into it.

 

[IIv SHaDoW vII]

What is the diameter of the stock intake manifold? We keep talking about going up to 55-60+ .. just exactly how much bigger is this than stock?

 

[link16]

What is the diameter of the stock intake manifold? We keep talking about going up to 55-60+ .. just exactly how much bigger is this than stock?

45mm.

 

[IIv SHaDoW vII]

Thanks link

 

[Slippi84]

But you would need a venturi for the Venturi effect to happen. (a symmetrical obstruction placed inside a tube)

Don't forget that it is vacuum which is drawing air in through the stepped tube. The velocity of the air moving through the 2.5" section of the stepped pipe would be the same as the velocity of air moving through a complete 2.5" intake.

Stepping pipe sizes in an exhaust system can yield noticeable gains if properly designed, as exhaust gas temperature's can drop rapidly as they leave the engine. Intake temperatures before the IM will not see such a radical change in temperature, though.



This is the only information I could find about the AEM v2 Intake. I don't see multiple frequency sound waves doing any good without points of reflection. I still am not buying into it.

If you look at weapon R's page the use a diffrent type of dual velocity setup with a pipe in side a pipe design but they explain how the idea works and have a actual flow bench to prove it. Listen if you don't believe company jargin that's understandable but I don't see how these regulated test by two diffrent companies that shows that two diffrent velocities or size pipes wether it be one inside another or one connected to another make more power wouldn't atleast make you open to the idea. It seems like your more denying this just so your pipe is a pipe theory will hold up which we already established is true unlish you mix pipes.

 

[Locke]

I'm a sceptical person, and will continue to be so until they give an analytical explanation of how it's function is is more beneficial than a conventional pipe + filter. Dyno's aren't enough for me; For all I know, they could be using a higher micron filter element, and the gains could be coming from this alone. If they won't tell us how it works, it is voodoo to me.

How much of a gain do these guys claim to achieve over their conventional IM's?

 

[Slippi84]

I'm a sceptical person, and will continue to be so until they give an analytical explanation of how it's function is is more beneficial than a conventional pipe + filter. Dyno's aren't enough for me; For all I know, they could be using a higher micron filter element, and the gains could be coming from this alone. If they won't tell us how it works, it is voodoo to me.

How much of a gain do these guys claim to achieve over their conventional IM's?

I think you mean intakes systems not IM(intake manifolds) but they claim to make more power it depends on who your comparing them to how much MORE hp they're making but like I said it's more the power along the entire band and smoother curve then peak hp. No intake is gonna net you HUGE gains.

 

[Locke]

I didn't mean to write IM, you're right.