Cyclone Intake manifold on a USDM engine?

[NX2000Guy]

Does anyone know what needs to be done to make this work? My friend got one with a short block that he bought, and it looks like the vacume lines are diffrent. Any ideas?

~Ryan

 

[Tallen]

its worthless

 

[NX2000Guy]

I wasnt asking the usefullness of it, I just want to know how to hook it up. It has 8 runners and 4 of the runners open up at higher RPM and they flow more, please dont post unless you have some usefull information for me.:xnuts:

 

[jdmawd]

His info was useful, because the jdm intake is useless. it does not flow more then the usdm intake. in high boost/flow situations it becomes an intake restriction. you can find exact flow numbers in the extreme tuner section under head flow or something like that. its pointless to do

 

[turboholic]

-I heard that you need a JDM ECU, b/c those ECU has an extra out put to tell the manifold to switch over, US spec ECU doesn't have such an output.
-I was thinking about that manifold too, it was free, my idea was to use an aftermarket swift light of something that can set the RPM, then hook in to an extra Mitsu EGR valve solenoid, which work off vacuum, to switch the butterfly, but I don't want to switch the 2 manifold for smog check so I gave up the idea.

 

[LaserRST]

This manifold isnt worthless... dont listen to any one that says so. Although the flow charts have lower flow in mid range, these flow charts are based on vacuum. Even so on a N/A the Cyclones will dominate a US spec. Here is why. The whole concept behind a Multi Port Flapper activated VGI is to eliminate the problems of high revving multi valve engines have and that is in the bottom end. This is proven by Toyota(TVIS), Ford (Cobra and Z-tec Focus), Mitsubishi (hence the Cyclone manifold), and BMW which in the design of making a intake that will vary from 9" port length to 26". The whole concept is to increase bottom end torque by limiting the flow through a long and narrow intake runner. What this does is increase port velocity which causes the air to swirl faster in the combustion chamber which increases the engines thermal efficiency in turn provides more power, cooler. An added benefit is resonance tuning. The US spec is designed for max hp around 6000 rpm. With a VGI it has more than one tuning point allowing a "Variable" tuning area with shorter runners on the top end to take full advantage of resonance tuning. If you are looking to tune your Cyclone intake start by connecting your flapper solenoid to the extra vacuum line on the intake plenumn. This will give you some tuning based on vacuum and improve thermal efficiency in the bottom end. To better tune the intake is to, like some one mentioned, have a vacuum can much like the ones that have vacuum controls for the A/C and heating units, and a switch to maintain vacuum until about 4k-5.5k hits and opens the shorter intakes. This intake has definately decreased turbo lag and helped my car respool at high speeds on my car. This is a good and sound investment, and until someone can produce flow charts based on boost and not vacuum, I believe it will out perform any US spec intake. Good luck. And if you have any ideas on how to control this flapper I would be glad to be of assistance. I have a few and would share them with you... PM me any time.

 

[GRNDSM]

LaserRST, this is a valid concept, which can give you less lag and more bottom end torque WHEN it is properly controlled by a JDM ECU. With out it, it is worthless...

Leon
RR

 

[NX2000Guy]

Originally posted by GRNDSM
LaserRST, this is a valid concept, which can give you less lag and more bottom end torque WHEN it is properly controlled by a JDM ECU. With out it, it is worthless...

Leon
RR

So I assume to use the JDM ECU you would need the JDM wiring harness? Wouldnt the JDM ecu just be wired up to a soliniod that would open it at a cirtin RPM and a cirtin TPS voltage? I could be full of it here, but wouldnt an RPM switch such as the one MSD makes work for this application?

~Ryan

 

[LaserRST]

Originally posted by GRNDSM
LaserRST, this is a valid concept, which can give you less lag and more bottom end torque WHEN it is properly controlled by a JDM ECU. With out it, it is worthless...

You need to understand the concept of how it works. Increases thermal efficiency in its hgs or vacuum. It is not worthless without its ECU I am not running an ECU in mine and felt a difference in top and bottom end response. Dont forget that the flow numbers are in vacuum and not in boost. You dont need the JDM ECU unless you wann do harness also. You will need the parts to control the flapper as well. Tuning this is not too hard. The flappers stay open unless vacuum is present, you can find a way to tune this to reap its advantage in multi stage resonance tuning.

 

[GRNDSM]

I am sorry, but I do not listen to what people "feel". Show me some dyno numbers and I will believe it. I have seen other people try it and despite what they have "felt" they could not produce any tangible evidence...

Leon
RR

 

[LaserRST]

(Quote)I am sorry, but I do not listen to what people "feel".

I understand that... look into Toyotas TVIS system and Ford Cobras intake analysis, VGI vs FGI. They could probably produce some numbers that may reveal the benefit of a VGI. As far as the Mitsu Cyclone, I didnt dyno my engine with out it but plan on doing some dyno testing to adjust my cams soon, maybe if I find a cheap used USspec manifolds Ill do the work and dispell the myth. Though to further my experience with this new manifold, I can peel out all the way through first, second, and halfway through third from a dead stop without spooling the turbo first, with my US spec I can do this with revving the engine up to 2.5k-3k if I had a cool clutch but wouldnt even chirp in third. I was amazed and impressed with the differences, for what its worth....

Cant wait to see how it feels with a Quaife diff

 

[jdmawd]

Originally posted by LaserRST
(Quote)I am sorry, but I do not listen to what people "feel".

I understand that... look into Toyotas TVIS system and Ford Cobras intake analysis, VGI vs FGI. They could probably produce some numbers that may reveal the benefit of a VGI. As far as the Mitsu Cyclone, I didnt dyno my engine with out it but plan on doing some dyno testing to adjust my cams soon, maybe if I find a cheap used USspec manifolds Ill do the work and dispell the myth. Though to further my experience with this new manifold, I can peel out all the way through first, second, and halfway through third from a dead stop without spooling the turbo first, with my US spec I can do this with revving the engine up to 2.5k-3k if I had a cool clutch but wouldnt even chirp in third. I was amazed and impressed with the differences, for what its worth....

Cant wait to see how it feels with a Quaife diff

if i dump the clutch at 5k i can smoke all 4 threw first gear.... what does that prove you ask? exactly nothing. i hope you understand the point.

 

[GRNDSM]

>I understand that... look into Toyotas TVIS system and Ford Cobras

>intake analysis, VGI vs FGI.

Those are all fine, ECU controlled examples... It sounds like you have your secondaries hooked-up to a simple boost/vac source. It not the same thing…

Leon
RR

 

[LaserRST]

Originally posted by jdmawd


if i dump the clutch at 5k i can smoke all 4 threw first gear.... what does that prove you ask? exactly nothing. i hope you understand the point.

Well my point was bottom end torque before the turbo kicked in.... any ways...

(Quote)Those are all fine, ECU controlled examples... It sounds like you have your secondaries hooked-up to a simple boost/vac source. It not the same thing…

Your right... almost, the Cyclone is ready to be tapped for the added torque. The key advantage is about the single runners in the bottom end, and with the flappers closed with the vacuum signal it has a noticable difference. You are right, with a factory ECU you will harness the factory set potential out of this intake, but there are ways to create that same power or more. The potential inside this intake is available, just need the right knowledge and tech skills to find it, I believe I am on the right track after all the research I have done. If I get some numbers I will post them along with what mods it needed to tap into this manifold. Stay tuned

 

[jdmawd]

my lord, since you refuse to listen to everyone that owns a dsm everywhere on every site and every shop. why don't you just do i. i have a cyclone intake you can have it for $10. its amazing how some think they can redesign the wheel. please stop wasting our time, either go hook up you're vacuum flapper intake or dont. you are not going to get a different answer, just because you keep re wording you're posts .

 

[LaserRST]

Post it on Ebay for 10.00 and I will buy it in a heartbeat. I have yet to meet some one who understands the potential of VGIs, along with how its design works. Mitsubishi put this in their engines to harness more power and give a much broader power band... but I guess its reinventing the wheel to even want to tap into it...
My intake is already hooked up and I shared with you some of the differences in its driving... it will be dynoed soon. As for listening to everyone else.... no one breaks records by doin what others are doing.... stay tuned

 

[93laserR]

i know what you are talking about man.i know what these maniflods do my friend has a cobra with the dual runners. they do give you better bottom end and better top end.i have a cyclone manifold for my car that i will be installing on it when i switch out the motor.

 

[jdmawd]

just so you page flippers know. 90% of those who have forced induction on there 32v cobras dont run the butterfly valve. FMS makes a delete that everyone uses that is going fast with forced induction.

 

[LaserRST]

Originally posted by jdmawd
just so you page flippers know. 90% of those who have forced induction on there 32v cobras dont run the butterfly valve. FMS makes a delete that everyone uses that is going fast with forced induction.

Heh... and the other 10%? WTF a page flipper any way?

If you are gonna put in a Cyclone on a USspec engine I am in the works of making an adjustable control for the flappers. If you are interested PM me or email me.

JDM--->:xnuts:<---USspec