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I made this heat exchanger from customized AL extrusion - 1/2" thick x 3.75" wide x ≈33" long - pics below. (Sorry for the bad pics, just grabbed them late evening, and forgot to get pic of filler bottle which replaces radiator.)
• Testing was done on a KTM 520 big bore with a ARO 3" in spring conditions down a long icy groomed trail. Got up to 207°F @ WOT for several miles without hitting the ditch for powder.
• In the powder- as long as engine is fully covered- I was getting ≈175° average
• Hill climbs got average ≈195°F
Kit is made to be universal for all bike models and will include:
• Ready to bolt on Heat exchanger
• Radiator bottle with expansion tank - goes in place of Left or Right radiator (wherever original radiator with pressurized filler cap was). Requires some kind of radiator guards or braces to be in place to allow for bottle to be mounted to.
Additional details:
• 1/2" thickness allows use with 3" lugs and no issues of lugs hitting heat exchanger with it mounted all the way forward.
• Production model will have the in/out ports slightly different (all aluminum- no threaded brass components) and will be moved to the sides as far as possible so it will not interfere with any gas tanks, etc whatever you have mounted to your tunnel.
• Will mount to any model /year ARO or RIOT. (Have not yet got my hands on any yeti tracks to check fitment)
• plumbing and hookup will use standard 5/8 heater hose
• mounting to tunnel will be with rivets or small bolts through the flange (mine was hastily welded to the tunnel at midnight as I needed to get it out for testing in the morning. Dont mind the 2 bolts you see in the pic)
Purchasing and price:
These are not yet available for sale. This is a testing the waters to see how many of you are interested in such a kit, and open to your ideas/ suggestions before starting this project.
Price is estimated to be around ≈220$
Heres the sorry pics. Open to all comments and feedback.
• Testing was done on a KTM 520 big bore with a ARO 3" in spring conditions down a long icy groomed trail. Got up to 207°F @ WOT for several miles without hitting the ditch for powder.
• In the powder- as long as engine is fully covered- I was getting ≈175° average
• Hill climbs got average ≈195°F
Kit is made to be universal for all bike models and will include:
• Ready to bolt on Heat exchanger
• Radiator bottle with expansion tank - goes in place of Left or Right radiator (wherever original radiator with pressurized filler cap was). Requires some kind of radiator guards or braces to be in place to allow for bottle to be mounted to.
Additional details:
• 1/2" thickness allows use with 3" lugs and no issues of lugs hitting heat exchanger with it mounted all the way forward.
• Production model will have the in/out ports slightly different (all aluminum- no threaded brass components) and will be moved to the sides as far as possible so it will not interfere with any gas tanks, etc whatever you have mounted to your tunnel.
• Will mount to any model /year ARO or RIOT. (Have not yet got my hands on any yeti tracks to check fitment)
• plumbing and hookup will use standard 5/8 heater hose
• mounting to tunnel will be with rivets or small bolts through the flange (mine was hastily welded to the tunnel at midnight as I needed to get it out for testing in the morning. Dont mind the 2 bolts you see in the pic)
Purchasing and price:
These are not yet available for sale. This is a testing the waters to see how many of you are interested in such a kit, and open to your ideas/ suggestions before starting this project.
Price is estimated to be around ≈220$
Heres the sorry pics. Open to all comments and feedback.