I think he did it because he wanted the Filter to be as high as possible, because of water. Otherwise the frame is directly behind the carb/efi, there is not much space.
Yes exactly - a pod filter onto the TB will work if it is a SM road bike but one of my concerns was that the air box was vulnerable to water ingress, especially if you improved the breathing. The 630 was improved a bit in this regard but as Etze says I wanted it high and tucked away. Also wanted a good off road filter and I can use a pre-filter 'sock' on the UNI.
That location also keeps the incoming air cooler probably. And that long tract length is probably a good thing on a big single that doesn't like to rev out much anyway. How's the performance?
Performance is great and the tube volume and pod air filter area is close enough to that of original air box.
Just spent a few days out in Death Valley riding with some friends. Here are a few snapshots: https://spark.adobe.com/page/qlRxnYwszkfas/
I will be parting ways with my two 2008 610's later this year - 2018 is going to be a new direction. Still plenty of time for some last rides!
I I wanted to get it up high and out the way for water crossings and to lessen direct dust collection. The battery compartment under the seat was ideal. I have since also fitted a little splash plate just below the side of the battery box to also deflect water. Also the flex tube is approximately the same volume as the OEM airbox and seems to work well (many manufacturers tune this volume in an airbox and was not sure with husky) - likewise the UNI foam filter filters at least the same or more area as the OEM. All waorking great after many 100's of km/miles.
