[mayonaise_invasion]

So I know there's tons of posts on here about deleting the airbox. Mine method isn't all that much different other than I'm mounting the pod filter directly onto the throttle body. More on that and pics later when the filter shows up in the mail. But for the time being I'm removing the rest of the bits. I bought an sas blanking plate, the dongles, and a crankcase breather filter. But I'm left with the breather on top of the head. The purple arrows show the vacuum hose going from the head breather to the chamber in the frame. The yellow shows where there was a vacuum line to the now discarded airbox. Theres a second nipple below that one which had a vacuum line going to another part of the sas system that was discarded. All that being said, the obvious option in my head is to buy another breather filter similar to the crank case to fit onto the head rather than plugging the exposed points on the frame chamber. Any input on why that would or wouldn't work is appreciated.

 

[Spartacus]

Dont! Please put that airbox back in. The airbox provides "still" air ... that means no turbulence. W/O airbox the engine is subject to the whims of your bike at speed - pressure at times and then vacuum other times. The only place I've seen a benefit of a removed box is in the calm spaces of a dyno room ... not the real world. Trust me I have ported hundreds of heads and spent way too many hours in a dyno room. Believe it or not the factory has a bit of a clue to what they build. Replace filter with oiled gauze replacement ... that's it.

 

[ChainsawDuke]

So I know there's tons of posts on here about deleting the airbox. Mine method isn't all that much different other than I'm mounting the pod filter directly onto the throttle body. More on that and pics later when the filter shows up in the mail. But for the time being I'm removing the rest of the bits. I bought an sas blanking plate, the dongles, and a crankcase breather filter. But I'm left with the breather on top of the head. The purple arrows show the vacuum hose going from the head breather to the chamber in the frame. The yellow shows where there was a vacuum line to the now discarded airbox. Theres a second nipple below that one which had a vacuum line going to another part of the sas system that was discarded. All that being said, the obvious option in my head is to buy another breather filter similar to the crank case to fit onto the head rather than plugging the exposed points on the frame chamber. Any input on why that would or wouldn't work is appreciated. View attachment 112670
View attachment 112669

I did exactly this, I was concerned about oil blowing out of the filter and making a mess but it worked a treat and allows for the removal of as much plumbing as possible.

 

[mayonaise_invasion]

I did exactly this, I was concerned about oil blowing out of the filter and making a mess but it worked a treat and allows for the removal of as much plumbing as possible.
View attachment 112673

Oil spitting was going to be my follow up question. Love it! Thank you!

 

[Pavement Tested]

Dont! Please put that airbox back in. The airbox provides "still" air ... that means no turbulence. W/O airbox the engine is subject to the whims of your bike at speed - pressure at times and then vacuum other times. The only place I've seen a benefit of a removed box is in the calm spaces of a dyno room ... not the real world. Trust me I have ported hundreds of heads and spent way too many hours in a dyno room. Believe it or not the factory has a bit of a clue to what they build. Replace filter with oiled gauze replacement ... that's it.

Good dope. I've been considering doing this but my main concern is water in the intake. Currently running a K&N in place of the OEM filter and have modified my crank case breathing a bit.

 

[Spartacus]

Good dope. I've been considering doing this but my main concern is water in the intake. Currently running a K&N in place of the OEM filter and have modified my crank case breathing a bit.

I guess some just insist on having less horsepower? Oh well, everyone has the right to make a statement and it's a free country.

 

[mayonaise_invasion]

Here's the pod filter mounted directly onto the throttle body. I love the cafe racer look with the empty subframe and visible pod filter. For anyone trying to recreate this it's a k&n ru-1770 filter. That being said, k&n has limited sizes so the ID of the flange is 62mm which is just a tad Oversized. I cranked down on the worm clamp and it seems to be solid. I'll check for vacuum leak later. I had previously tried a larger k&n filter, the rx-3800 which didnt have the clearance with the location of the fuel pump. DNA makes a filter, ro-620-150, with a 60mm ID flange. But it's basically the exact same dimensions as the rx-3800 so I'm afraid it wouldn't fit. The DNA filter has a 2.5in flange length where as the k&n that fits is 2in. If this k&n has vacuum leak, then perhaps I'll order the DNA and hope cutting a half inch of the flange makes it just barely fit but I'm afraid the larger diameter is the issue and not the flange length. Next step is drilling a few holes into the flange to mount the stock air temp sensor. Pics to follow.

 

[mayonaise_invasion]

Here's the crankcase breather. Its a k&n 62-1330 and it mounts directly onto the crankcase nipple. In hindsight I wish I did a bit more research becore i ordered it. The k&n 62-2480 also fits right onto the nipple but is a smaller filter. 1 1/8" tall x 1 3/8" Diameter vs 1 1/2" tall x 2" Diameter. I know thats splitting hairs and it really doesn't matter but i think the smaller one would look a bit more trick. Oh well. Breather for the head is on its way in the mail. Pics to follow

 

[ChainsawDuke]

I have a similar set up on my 701, using a RE-0930 K&N, Runs great, the position keeps it out of the elements and fast moving air past the filter is not a big issue on a bike that spends 95% of its time below 70mph. I went with DNA filters on the vents after trying a couple of ebay cheapos that fell apart quickly.
Love the look and the intake noise is like god clearing his throat.

 

[ChainsawDuke]

Rather than clamping on the throttle body I have kept the stock intake rubber inside the filter. I understand the trumpet and length of the intake aids midrange.

 

[mayonaise_invasion]

Rather than clamping on the throttle body I have kept the stock intake rubber inside the filter. I understand the trumpet and length of the intake aids midrange.
View attachment 112714

I've read several posts about keeping the stock intake boot. I'd like to see a dyno side by side. I'm not a physicist but have a decent grasp on air dynamics. I don't see how the added length would add any benefit and I also don't understand how the velocity stack or trumpet effect works within the pod. All that being said I've never seen a 701 with thr exposed pod filter look and damn it looks great 👍

 

[ChainsawDuke]

I've read several posts about keeping the stock intake boot. I'd like to see a dyno side by side. I'm not a physicist but have a decent grasp on air dynamics. I don't see how the added length would add any benefit and I also don't understand how the velocity stack or trumpet effect works within the pod. All that being said I've never seen a 701 with thr exposed pod filter look and damn it looks great 👍

Read much the same myself. The filter has a pretty big internal volume, I guess the velocity stack would have a similar effect as it has inside the airbox. If nothing else the rubber intake gave me a bit of flexibility to get the best looking angle. Other 701s I have seen with a pod filter end up with a weird looking downward 'droop'.

 

[mayonaise_invasion]

Uni breather pod is installed on the head. Part Number up-104. The head nipple is 5/8" compared to the 1/2" crankcase nipple. I typically prefer k&n products over uni but their smallest breather had a diameter of 2" whereas the uni is 1 1/2" and it's a tight spot with the fuse box. I actually had to slip the fuse box off the mounting tines to install the breather and it's a photo finish. Once I drill the temp snesor mounting holes into the intake filter, this will be a wrap. Pics to come.

 

[ChainsawDuke]

What have you done about the fuelling, PCV, ECU reflash and/or dongle?

 

[mayonaise_invasion]

I'll likely go the power commander route. Debating if I'll run auto tune as well

 

[Pavement Tested]

I'll likely go the power commander route. Debating if I'll run auto tune as well

So you know, the PC6 is out of stock everywhere I've looked. Rottweiler will tell you they expect more in 2-4 weeks. That's been a thing for a few weeks now. Additionally, the PC6 requires a license to tune past the basics. I opt'd for a PCV which is discontinued but still available if you look hard enough. As of 3 days ago Cycle Gear/Revzilla had 4 left in stock after I bought mine.

 

[mayonaise_invasion]

I appreciate the heads up. I chatting with a guy right now who sold his duke and is going to sell me his pcv. And like I said, I'm debating about buying the auto tune off him as well

 

[Pavement Tested]

I appreciate the heads up. I chatting with a guy right now who sold his duke and is going to sell me his pcv. And like I said, I'm debating about buying the auto tune off him as well