3.3TT 2-Piece 3D-Print Intake Snorkels

[Thwack]

So this is probably the 3rd version of these out there right now, I had some extra time at home, HyperJetta had taken a break from making them, so I figured I'd come up with my own version.

I wanted to keep the Radiator shroud and cut as small a hole as possible into it, so I made the snorkel 2 pieces to keep the intake mouth wide, and the back end fitting onto the stock tube, the middle ends where they meet inside the shroud are narrower. I wanted a shape that would flow with the grille better and be a more interesting shape than rectangular, so I made more of a polygon shape, reminiscent of the hellcat charger intakes which I really like. I also printed in 2 colors, with the mouth as a silky/ shiny red filament that matches the red color pretty well Below is the outcome, hope you all like it.:

The back pieces alone would work for a mote stealth look, you just get a narrower mouth.

Couldn't get a good photo where they stand out, but in person you can see them easily.

 

[SKStinger]

Those looks really good! Nice work.

The only thing i'd say that would concern me a little is that they look like a pretty straight shot through to the filter. I have the Velossa snorkels and what i like about them is that they conform towards the center of the grille quite a bit further to minimize bugs or stones going straight into your engine bay/filter.

 

[Thwack]

Thanks.

The offset is pretty severe, it would have to be a one in a million rock that would have the exact angle to make it through the bends as well as the grille, and the grid in the back tube.

 

[Aarvix]

anyone else unable to see the pics?

 

[Thwack]

huh, let me try uploading them this other way:

 

[Aarvix]

Works for me now, thanks!

Snorkels look good, are you printing the red piece separately or just changing filament mid-print?

 

[General_Vodka]

Very nice. I got the first batch of the hyper Jetta ones but if I where late to the party then this would be my choice.

 

[Thwack]

Works for me now, thanks!

Snorkels look good, are you printing the red piece separately or just changing filament mid-print?

Thanks, mid print filament swap.

 

[Pnbnationsbest]

Need!

 

[DGambit]

Where can you get the files for these?

 

[Rakker]

Where can you get the files for these?

You make it yourself

Looks nice @Thwack!

 

[Thwack]

Wanted to update on my little pet project here I've been recording some datalogs to measure any improvement in intake temps. Due to COVID, I haven't been driving as much, so it took a while, but I've gathered several hundred data points and have compiled it to compare the intake temps.

Bottom line, between 10-50 Mph, the intake snorkels reduce intake temperatures by roughly 10 degrees on average. At every speed, intake temperatures are improved, but the improvement is not as pronounced the faster you go, the higher flow of air overcomes any lack of snorkels. I'd assume the other snorkel intakes would deliver similar improvements.

Here are the broken down figures for those who care, the numbers are the difference between ambient air temp and intake air temps (intake temps are always higher, the smaller the delta, the better):

 

[SnowyGT2]

Wanted to update on my little pet project here I've been recording some datalogs to measure any improvement in intake temps. Due to COVID, I haven't been driving as much, so it took a while, but I've gathered several hundred data points and have compiled it to compare the intake temps.

Bottom line, between 10-50 Mph, the intake snorkels reduce intake temperatures by roughly 10 degrees on average. At every speed, intake temperatures are improved, but the improvement is not as pronounced the faster you go, the higher flow of air overcomes any lack of snorkels. I'd assume the other snorkel intakes would deliver similar improvements.

Here are the broken down figures for those who care, the numbers are the difference between ambient air temp and intake air temps (intake temps are always higher, the smaller the delta, the better):

Thanks for the data, looks great! Wondering, is this with or without the shroud? I am assuming with as that is what shows in your picture attachments but I just want to make sure as I can't decide whether to leave it or remove it for my own install.

 

[Rakker]

Wanted to update on my little pet project here I've been recording some datalogs to measure any improvement in intake temps. Due to COVID, I haven't been driving as much, so it took a while, but I've gathered several hundred data points and have compiled it to compare the intake temps.

Bottom line, between 10-50 Mph, the intake snorkels reduce intake temperatures by roughly 10 degrees on average. At every speed, intake temperatures are improved, but the improvement is not as pronounced the faster you go, the higher flow of air overcomes any lack of snorkels. I'd assume the other snorkel intakes would deliver similar improvements.

Here are the broken down figures for those who care, the numbers are the difference between ambient air temp and intake air temps (intake temps are always higher, the smaller the delta, the better):View attachment 45620

Makes sense that at higher speeds it doesn't help as much because I'm sure the air pressure is pretty damn high around the grill. What doesnt make sense though is at 0 mph.

Would be interesting to see this against the oem setup too.

 

[Thwack]

Thanks for the data, looks great! Wondering, is this with or without the shroud? I am assuming with as that is what shows in your picture attachments but I just want to make sure as I can't decide whether to leave it or remove it for my own install.

Shroud is intact with just the 2 holes, as in the photo. With most of the snorkel styles out there I'd probably just ditch the shroud, the holes would be too big to bother with cutting, plus you can always go back to stock. I don't think the shroud would make much difference while moving anyways, my data looked very similar to the plots Rakker had up of before and after.

Makes sense that at higher speeds it doesn't help as much because I'm sure the air pressure is pretty damn high around the grill. What doesnt make sense though is at 0 mph.

Would be interesting to see this against the oem setup too.

I considered cutting that group out, but the data is what it is. The 0 Mph plots were from waiting at lights during my trips, round trips, ducts open one direction, blocked the other, so same lights, similar wait times, 5 sec interval times, but my data there was the most scattered. I think I hit a longer light just after getting off highway, when engine bay was coolest, which skewed the open 0mph trend that way. You can see the minimum delta for open and closed are almost the same, the plurality of that data, even cutting out that light still skewed lower for open ducts. . Makes sense if the engine bay is 10 deg cooler going 30 and you have a short light so it doesn't heat up too much. I even waited till the car had warmed up, a couple of miles from my start, before starting logging, so I wouldn't get skewed data from a cool engine.

I really wish I had logged oem temps before I cut the shroud, no going back now. If someone with stock setup wants to test with an OBD2 scanner, I can tell them what to look for to compare.

 

[Travis Wills]

What does it mean “with vents open” vs. “with vents closed”?