RIOT HEAT EXCHANGER

CATSLEDMAN1

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Nov 27, 2007
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a NEW THREAD from question in the Riot gas can thread, request picture of how I mounted a heat exchanger on the Riot Kt.

The heat exchanger I used I had buit 4 or 5 years ago for my 2013 TS kit. I ordered snowmobile heat exchanger stock from WAHL BROS. Seems to be about $15 a foot. Then you find spigots and tig weld it up. Kinda lazy doing my riot, this one looked ok.
Picture shows it in the tunnel, has about 3/4" clearance, more that I remember on an old TS kit.
Included pictures to show how its plumbed on my 2013 KTM 500, used regular old Gates hose, silicone 90degree bends right off the bike, when I'm riding this is all covered with plastic.

So the Riot head exchanger is 12" by 8" about 96 sq inches of aluminum, mounted tigh up against the rear pan which acts then somewhat as a heat sink also.

I included a picture of a 3 1/2" by 11 1/4" or 39.3 sq inches heat exchanger that I ran two of these ( so 79 sq " with that set up }on the older TS tube frame kit. What I found was to keep 190 degree heat in my KTM 500, I could drop one of the these small heat exchanger and only run one of the 39,3 sq inch heat exchanges and no problem cooling even in spring hard trals if there is any snow kicking up.

My KTM runs so much better , just nice and clean and crisp at 190 degrees that running radiators just isn't an option.

Picture also of this setup with my Race Car plastic covers on last years setup and going back on for this year.

With heat exchangers, 190 thermostat, plastic covers/plastic skid pan, in cold 20 degree new 2 ft drop I had to cover the back of my engine and build plastic covers to defect the track from throwing snow up on to the back of the engine, breaking in trail 180 degrees really burning throughthe fuel, 190 when I would pull into Dan's track. Fact is I had to turn off my heated handle bars to get the temps that high.

So if you run radiators and a thermostat and don't run a heat gauge to know, you won't know how much performance
you give up or how hard it is on your motor when all you can get is 150 degrees out of the bike...........well that's my story.
 

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wwillf01

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Aug 12, 2012
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Heber Ut
a NEW THREAD from question in the Riot gas can thread, request picture of how I mounted a heat exchanger on the Riot Kt.

The heat exchanger I used I had buit 4 or 5 years ago for my 2013 TS kit. I ordered snowmobile heat exchanger stock from WAHL BROS. Seems to be about $15 a foot. Then you find spigots and tig weld it up. Kinda lazy doing my riot, this one looked ok.
Picture shows it in the tunnel, has about 3/4" clearance, more that I remember on an old TS kit.
Included pictures to show how its plumbed on my 2013 KTM 500, used regular old Gates hose, silicone 90degree bends right off the bike, when I'm riding this is all covered with plastic.

So the Riot head exchanger is 12" by 8" about 96 sq inches of aluminum, mounted tigh up against the rear pan which acts then somewhat as a heat sink also.

I included a picture of a 3 1/2" by 11 1/4" or 39.3 sq inches heat exchanger that I ran two of these ( so 79 sq " with that set up }on the older TS tube frame kit. What I found was to keep 190 degree heat in my KTM 500, I could drop one of the these small heat exchanger and only run one of the 39,3 sq inch heat exchanges and no problem cooling even in spring hard trals if there is any snow kicking up.

My KTM runs so much better , just nice and clean and crisp at 190 degrees that running radiators just isn't an option.

Picture also of this setup with my Race Car plastic covers on last years setup and going back on for this year.

With heat exchangers, 190 thermostat, plastic covers/plastic skid pan, in cold 20 degree new 2 ft drop I had to cover the back of my engine and build plastic covers to defect the track from throwing snow up on to the back of the engine, breaking in trail 180 degrees really burning throughthe fuel, 190 when I would pull into Dan's track. Fact is I had to turn off my heated handle bars to get the temps that high.

So if you run radiators and a thermostat and don't run a heat gauge to know, you won't know how much performance
you give up or how hard it is on your motor when all you can get is 150 degrees out of the bike...........well that's my story.
Heat exchangers are where its at... always makes tuning and how the bike runs a piece of cake;)

Sent from my SM-G975U using Tapatalk
 

dooman92

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Catsledman1, great write up. Have you, or anyone elsed on here, put heat exchangers in a 16' yeti tunnel? C3 had a single small exchanger that required leaving one radiator so I passed. I certainly like the idea, going to look at my tunnel again. Did you happen to get a message I sent you about a week ago? wondering if I did it right.
 

CATSLEDMAN1

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Nov 27, 2007
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Catsledman1, great write up. Have you, or anyone elsed on here, put heat exchangers in a 16' yeti tunnel? C3 had a single small exchanger that required leaving one radiator so I passed. I certainly like the idea, going to look at my tunnel again. Did you happen to get a message I sent you about a week ago? wondering if I did it right.
As noted, doesn't take much of a heat exchanger to cool your bike. I run a right side radiator completely covered just to make adding coolant and have a radiator cap easy. If the price is right, try their heat exchanger. I will see if I can figure out the new PM, tried and couldn't find it.
 
Apr 22, 2009
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I have a friend ran a 570 no problems, the 650 as a snow bike climbing hills and running through trees doesn't seem to get enough air across the radiator to keep it cool. Running down the road it was fine but going slow it got hot. Heat exchanger fixed it. Seems the 650 only holds about a quart of water.
 
Dec 28, 2007
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Any concerns about track contact ? I was concerned about mounting a rotopax mount in a similar location . I can push the track up to the tunnel pretty easily .
 

cbc76am

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It's got several inches of clearance. I just moved my HX from my ARO to the RIOT without issue. It really is amazing on the cr500 how well it works to have perfect temps. I also run a radiator on that bike on a second thermostat at a higher temp as a backup circuit. But I've only needed it before I added ice scrapers on long ice runs.
 
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