1.5T Has anyone noticed the hood's air guide doesn't line up with the OEM intake?

[PowerPerLiter]

I call bs.

All these systems be it 2.0t or 1.5t are torque targeting based. If it helped that much (it wouldn't) than the computer would see this and open the wastegate further to maintain the same torque target, thus negating the increased boost pressure. It would do this is seconds. The owner would barely be able to record the increase let alone see this happen.

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[PowerPerLiter]

I believe this is why the aftermarket intakes make so little power difference on any of them, or even lose power compared to stock.

They cause the computer to react negatively in response to the airflow increase, reducing power to make sure the powertrain remains safe.

Not even mentioning the inaccuracies of measuring the airflow that are introduced with changing the stock intake strategies.

 

[Hondanickx]

I asked 7Mod if this was true or not .The mod the german guy was talking about is this one

Maybe they saw a increase on the maf sensor or something and people telling other people make that a increase of turbo pressure.
I agree that the increase in turbo pressure doesn't make sence .Anyway the point being was that this mod works ,so it should also work on the 1.5.

 

[Myx]

I asked 7Mod if this was true or not .The mod the german guy was talking about is this one

Maybe they saw a increase on the maf sensor or something and people telling other people make that a increase of turbo pressure.
I agree that the increase in turbo pressure doesn't make sence .Anyway the point being was that this mod works ,so it should also work on the 1.5.

Thanks for the clarification.

 

[Hondanickx]

I've been looking over the type-r intake tract and it has a air duct from the front grill that guides the air over the front frame into the airbox.
How does the 1.5t even get air up in the vanes of the bulkhead cover ?
There's no air guides anywhere ...

 

[repeet]

Maybe Honda figured that so many Si owners would install CAIs that it would be a waste of their money to design an air path to the factory airbox.

 

[PowerPerLiter]

I've been looking over the type-r intake tract and it has a air duct from the front grill that guides the air over the front frame into the airbox.
How does the 1.5t even get air up in the vanes of the bulkhead cover ?
There's no air guides anywhere ...

It relies on the pressure differential between above the radiator cowl panel and below it. The type r setup is much better in execution but both designs rely on this.

One of the reasons I wanted to install the type r paneling and guides when I was doing all my modding and experimenting on my 18.

 

[Hondanickx]

Yeah i was looking into that too of maybe installing the type-r ducting .But the type R radiator is lower and gives room for the duct .If making such a duct on the 1.5t you need to block off a small portion of the radiator.
View attachment 191620

A lot of high end airbox manufacturers for the fk8 use the "ram air " to feed the airbox.
And those work really well.

Eventuri
Sprint filter
PRL

Here's the Sprint filter carbon airbox for the fk8

 

[PowerPerLiter]

Well all be dammed. Good stuff there. @Myx will like that info too.

I knew there had to be more to it to do that complete swap. I was going to just do the cooling plate to start. The lower ducting is like 110.00 bucks and I was not sure it would even have fit which you confirmed it wouldn't.

Good information.

 

[Hondanickx]

Well all be dammed. Good stuff there. @Myx will like that info too.

I new there had to be more to it to do that complete swap. I was going to just do the cooling plate to start. The lower ducting is like 110.00 bucks and I was not sure it would even have fit which you confirmed it wouldn't.

Good information.

I'm here to share and learn like most of us here
I was actually looking for that piece 71204-TGH-A00 all over the parts diagrams .When i finally found it i noticed where it actually was mounted and saw that there was a larger opening at the type R .
I still think you can make a air duct there but the radiator takes up some space so there might not be enough space left.
I actually can't get rammed air from the front bumper fog light because of the honda sensing sensor sitting there.

 

[PowerPerLiter]

I'm here to share and learn like most of us here
I was actually looking for that piece 71204-TGH-A00 all over the parts diagrams .When i finally found it i noticed where it actually was mounted and saw that there was a larger opening at the type R .
I still think you can make a air duct there but the radiator takes up some space so there might not be enough space left.
I actually can't get rammed air from the front bumper fog light because of the honda sensing sensor sitting there.

Yeah alot of what is in that other mentioned/linked thread was me intending to create a better inlet setup. Got a little hacky but it worked extremely well.

 

[Myx]

Well all be dammed. Good stuff there. @Myx will like that info too.

Good information.

Absolutely! That Sprint setup is very, VERY interesting. Really good diagrams posted above.

I had a really long reply referencing my 2015 Honda Fit intake experiments and testing a homemade dual setup like Sprints. In conclusion, the single setup with incoming air from the front grill had a higher volumetric efficiency than the dual setup with incoming air from the front grill and fog light (105-107% vs 102-103%).

I didn't find the reason for this but something made me think the pressure building up from the single intake was better than the dual after coming off the throttle (throttle plate closed) and back on again. The dual setup would have one of the inlets of air possibly pushing air towards the other if the pressure was less, instead of it crashing in back of the throttle plate.

Either way love Sprints setup. All the air is being trapped in the air filter housing and pre-turbo.

 

[Myx]

Yeah i was looking into that too of maybe installing the type-r ducting .But the type R radiator is lower and gives room for the duct .If making such a duct on the 1.5t you need to block off a small portion of the radiator.
View attachment 191620

I think you are on to something. I uploaded a pic I took with my front bumper off. It looks like that space can be utilized, despite the size of the stock radiator. Very interesting!

I'm typing this from my phone at work. How much is the top Type R piece that guides the ram air to the airbox? I'd be very interested to make a homemade version of the Sprint intake to test at a track in late February/March.

 

[Hondanickx]

I switched out my grill last summer but didn't look at the space that was there.However i found a video of pro car studio installing a koyo radiator which shows how much room there is .
I think you could make a simple air duct made from thin sheet metal.It has to come down quit a bit over the radiator to be able to connect to the front opening in the bumper.
The only thing is you need to connect it to the stock airbox entrance ( the square plastic/Rubber piece) to make it a ram air .(If you're using the stock airbox)
Took some screen shots from the video to further explain.

[

 

[D-RobIMW]

I hate to be the Debbie Downer here, guys, but this is an awful lot of hair splitting.

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