We Need Your Feedback on Our Mazdaspeed Intake Manifold

[PapaBruno]

Originally Posted by CorkSport Have you contacted us about the struts?

Hey,

No, I haven't. Figured they'd be out of their warranty range.
Speaking of, I need to get my warranties submitted for the HP fuel line and injector seals, so thanks for the reminder.

[Code Monkey]

@PapaBruno; what's wrong with the HP fuel line?

[nindoja]

Originally Posted by Code Monkey @PapaBruno; what's wrong with the HP fuel line?

This. I've got a line waiting to be installed once I sort out my engine woes.

[sharksinspace]

I don't know that I've heard of anyone warrantying the injector seals, either. What up with that?

[PapaBruno]

Nothing. Just submitting/registering the warranty card for both of them. Did I misread those gold sheets? Are they only for issues? I thought they were for registering your products.

Sent from my SAMSUNG-SM-G900A using Tapatalk

[CorkSport]

Originally Posted by PapaBruno Nothing. Just submitting/registering the warranty card for both of them. Did I misread those gold sheets? Are they only for issues? I thought they were for registering your products.

You didn't misread anything. I think the guys posting above did.

[sharksinspace]

Originally Posted by CorkSport You didn't misread anything. I think the guys posting above did.

Yup; I read it as you were having issues with those parts and needed them to be warrantied. My bad!

[PurplFox]

well that sucks. Will it happen??

[Marcus]

Four score and seven years ago...

Is it time yet? Bc this mani and your cams would be a nice addition to my build.

[rbarnz]

Originally Posted by Marcus Four score and seven years ago... Is it time yet? Bc this mani and your cams would be a nice addition to my build.

+1. Looking into an IM and I think I'd rather have this over the JMF or porting a stock one. Seems there's been plenty of time for testing judging by the age of this thread.

[Thor Hammer]

Just got an email lastnight that these manis are up for sale now in limited numbers. $599.00

Thought this thread would be updated by now.

[Ozynigma]

Originally Posted by Thor Hammer Just got an email lastnight that these manis are up for sale now in limited numbers. $599.00 Thought this thread would be updated by now.

Announcement on here will be in two weeks

(PS I got the email too)

[Marcus]

They're up for sale and almost sold out.

I gots one.

I hope it's a shiny pretty one.

[WeeGad]

Mines is getting delivered next week

[NCspecV81]

they may work better than stock but damn these are ugly as fuck lol.

[sharksinspace]

i don't think there's anyrhing wrong with how it looks

[Thor Hammer]

I think the draw is price and how it looks stock. Which is a good thing if you have discerning smog techs to deal with every two years. But yeah, its not pretty!

[dale_gribble]

Originally Posted by Thor Hammer I think the draw is price and how it looks stock. Which is a good thing if you have discerning smog techs to deal with every two years. But yeah, its not pretty!

The lack of the VCTS and EGR will be instant disqualifiers unless you defeat the checks. It looks very aftermarket. Very cool but very aftermarket.

edit: source: I have one.

[Thor Hammer]

Originally Posted by dale_gribble The lack of the VCTS and EGR will be instant disqualifiers unless you defeat the checks. It looks very aftermarket. Very cool but very aftermarket. edit: source: I have one.

True, but easily defeated with ATR. I still think it looks close to stock when I look at pictures side by side being that both are cast. But the engraved Corksport logo is kind of a dead giveaway.

[dale_gribble]

No, defeating in ATR still means the sensor bank won't check in for emissions testing; defeating in ATR only masks the CEL.

[Marcus]

I should add this:

During the shipment of my IM from Corksport to Sumas WA where my drop box is, UPS damaged the box and it just showed back up @ Corksport. They contacted me asking me like "hey, did you return the IM?" and I was like "noooo bro, dont think it's been delivered yo". They investigated it further and found out the story.

Corksport did the good thing and re-inspected it before sending back out. Which apparently was necessary as a few things were missing or damaged. At no extra cost to me.

I like this company. I still dont like UPS.

[BLKspd5]

My manifold has been lost during UPS and I only live three hours away from CS...hope they find it

[BuddySpeed3]

Anybody notice any immediate gains in terms of driveability and power?
I'm thinking of getting one of these in the new year☺

[Jakeypoo]

While we are talking about this manifold.
Has anyone plumbed E85 from the low pressure side of our fuel system to the ports on this?

[davychronic]

Originally Posted by Jakeypoo While we are talking about this manifold. Has anyone plumbed E85 from the low pressure side of our fuel system to the ports on this?

You will have pressure loss to your hpfp especially with the stock pump.

[Dennisms3]

Sent from my iPhone using Tapatalk

[BuddySpeed3]

Originally Posted by davychronic You will have pressure loss to your hpfp especially with the stock pump.

Are the ports strictly for meth nozzles?

When the time comes for aux fuel, I need to make sure it's reliable. Just how reliable is feeding 4 meth nozzles with a single pump?

The nice thing about this manifold is that FMIC piping would fit nicely without any trouble due to it being stock location.

Also the 2% flow imbalance is good if running 5th/6th port, but it would be cool if we could run a full port injection setup with fuel rail on this

[davychronic]

Originally Posted by BuddySpeed3 Are the ports strictly for meth nozzles? When the time comes for aux fuel, I need to make sure it's reliable. Just how reliable is feeding 4 meth nozzles with a single pump? The nice thing about this manifold is that FMIC piping would fit nicely without any trouble due to it being stock location. Also the 2% flow imbalance is good if running 5th/6th port, but it would be cool if we could run a full port injection setup with fuel rail on this

Ive run port meth injection off of a single pump no problem. I suggest using small nozzles tho, it gets harder to tune a smooth maf curve with bigger nozzles. I had 4 size DO2 nozzles and it was tough to get a smooth fuel curve.

Personally id run two nozzles pre tb, easier to tune and better atomization. I ran two different size nozzles and had the smaller one come on around 7psi and the bigger one around 20.

[BuddySpeed3]

Originally Posted by davychronic Ive run port meth injection off of a single pump no problem. I suggest using small nozzles tho, it gets harder to tune a smooth maf curve with bigger nozzles. I had 4 size DO2 nozzles and it was tough to get a smooth fuel curve. Personally id run two nozzles pre tb, easier to tune and better atomization. I ran two different size nozzles and had the smaller one come on around 7psi and the bigger one around 20.

Thanks for the awesome info. I may just inject pre throttle body in that case, and use an AEM wide band failsafe to trigger the Guardian Angel in the case of failure

[Jakeypoo]

Originally Posted by BuddySpeed3 Are the ports strictly for meth nozzles?

I’m interested in in this as well. With a larger in-tank pump can E85 be run through appropriate nozzles? Are there meth nozzles that are E85 compatible?

[BuddySpeed3]

Originally Posted by Jakeypoo I’m interested in in this as well. With a larger in-tank pump can E85 be run through appropriate nozzles? Are there meth nozzles that are E85 compatible?

But that would mean that the meth nozzles are spraying all the time (unless there's a way to control fuel flow to them) at a much lower pressure of 60 psi, as opposed to about 300 psi from a meth pump, and who knows how good meth nozzles work at lower pressures especially when exposed to boost. As mentioned earlier a single meth pump can supply 4 small nozzles without issue.

I've only ever read of people feeding actual controlled injectors whenever teeing off the low side fuel line with an upgraded in tank pump. Depending on fuel demand, some run a single high output pump like the walbro 450, or dual pump setups with two dw300's for example.

It would be cool if they had two versions of the manifold. One for port meth injection, and one for port fuel injection.

They would need to figure out a way to mount a fuel rail to it though. I think that would be a huge selling point by giving people the option.

I plan on running a single pump, either a dw65c or dw300 with 5th/6th port, just to take the strain of the stocks injectors at 380-400 whp. With 5th/6th port there's still lots of room for more power if I ever build the engine.

[Jakeypoo]

Originally Posted by BuddySpeed3 But that would mean that the meth nozzles are spraying all the time (unless there's a way to control fuel flow to them) at a much lower pressure of 60 psi, as opposed to about 300 psi from a meth pump, and who knows how good meth nozzles work at lower pressures especially when exposed to boost. As mentioned earlier a single meth pump can supply 4 small nozzles without issue. I've only ever read of people feeding actual controlled injectors whenever teeing off the low side fuel line with an upgraded in tank pump. Depending on fuel demand, some run a single high output pump like the walbro 450, or dual pump setups with two dw300's for example. It would be cool if they had two versions of the manifold. One for port meth injection, and one for port fuel injection. They would need to figure out a way to mount a fuel rail to it though. I think that would be a huge selling point by giving people the option. I plan on running a single pump, either a dw65c or dw300 with 5th/6th port, just to take the strain of the stocks injectors at 380-400 whp. With 5th/6th port there's still lots of room for more power if I ever build the engine.

I didn’t even think about the fact that they would be spraying all the time. I was considering a 6th port pre TB kit but saw the CS manifold and was hoping there was a way to make it work with E85.

The other option is the port induction kit and Ford manifold. But I wanted the CS manifold.

CS Manifold and TB kit starts getting pricy.

Any other ideas?

[BuddySpeed3]

Originally Posted by Jakeypoo I didn’t even think about the fact that they would be spraying all the time. I was considering a 6th port pre TB kit but saw the CS manifold and was hoping there was a way to make it work with E85. The other option is the port induction kit and Ford manifold. But I wanted the CS manifold. CS Manifold and TB kit starts getting pricy. Any other ideas?

I think the only way to make this manifold work with fuel from the tank is 5th/6th port.

Unless @CorkSport; comes out with a port fuel injection version of this manifold those ports may only work with meth nozzles.

Even if someone was able to modify the meth ports to fit 4 actual injectors with a custom fuel rail, there's about 10 inches between the ports and intake valves. That might be a problem for getting fuel into the cylinders in time. I could be wrong though.

[mituc]

If you just put those nozzles there without any controller then yes, they will be spraying all 4 at the same time. Spraying at a closed valve is not something you want.
However, for single port WMI you can use the additional 1/8-27 port where the TB meets the IM.

[pwdunmore]

Anyone have logs before and after install to show increased g/s? less wgdc? less boost but same power levels?

No one has posted data other than corksport from what I have seen.

[mituc]

Originally Posted by dale_gribble The lack of the VCTS and EGR will be instant disqualifiers unless you defeat the checks. It looks very aftermarket. Very cool but very aftermarket.

I totally agree. VTCS would not be a real issue, but the EGR is. The lack of an EGR port is the only reason I don't already have this manifold. I am currently looking into porting a stock one.

[MD1032]

Originally Posted by mituc I totally agree. VTCS would not be a real issue, but the EGR is. The lack of an EGR port is the only reason I don't already have this manifold. I am currently looking into porting a stock one.

Seems to me you could modify the stock EGR pipe or come up with your own way to run some stainless line with AN fittings from the stock EGR port on the side of the block down to the port that Corksport provides for the PCV valve connection, then route the PCV valve to one of the ports on the front of the intake manifold. Or find a way to connect the end of the stock EGR pipe to that same port on the CS IM. I was thinking of doing this so I could keep my EGR.

[sharksinspace]

Does any aftermarket manifold retain egr garbage, though? I don't think deleting it is unique to CS.

[mituc]

Originally Posted by sharksinspace Does any aftermarket manifold retain egr garbage, though? I don't think deleting it is unique to CS.

I think there was one or two which retained the EGR but were not compatible with a TMIC
EGR is a garbage from a lot of aspects.
One other very relevant aspect is that all these parts "for off-road/race use only" are bought by people to put in cars driven 100% on street. In some regions of the world this is not a problem.
In my area however fitting aftermarket/performance parts on cars is not a big issue as long as some certain parts have homologation (wheels/tires, struts and springs - nothing on arms/endlinks/bushings/braces/and so on, lights, windows, seat belts and airbags, brakes, exhausts as long as you pass smog and not exceed some noise limits) some others do not and can be fitted as long as you pass emissions and braking tests.
Because I'm one of those people and I will never hide behind hypocrisy to feed my vanity, pleasure and passion I want to be able to go fast when this is possible and practical but pass any MOT/TUV/smog test in a designated facility or on the side of the road (they have mobile units and test things).

I am not going to replace my IM with a factory one every time I have to take a smog test. VCTS is really not a problem, EGR however will have a direct and immediate impact on the emissions.

The CS manifold seemed to be the perfect one for me. With no EGR is a no-go though. I already sent a factory one for porting so I hope I will be able to squeeze 20-30 more horses on top of those existing 450 (that if the restriction is not in the EM and Mazda turbo flange, but I will see soon).

So that's pretty much all about whining over the EGR.

[sharksinspace]

Emissions is a valid reason for keeping EGR; I know Alex Lawson over on the other forum had fabbed up a method to get a ready status on EGR with his JMF manifold...if your guys aren't super thorough in their examination maybe a similar setup could work for you?