Heat exchanger setup for turbo


New member
Premium Member
Jan 28, 2019
I have a 2010 yz450f turbo, and since I had to ditch the left radiators to make space for the intake charge pipe, how does this sound for a cooling system setup:

Bypass circuit:engine‐> right radiator (with radiator blockers for on the go adjustment as needed/ finding the sweet spot)‐> pump‐> engine.

Open circuit: engine‐> right radiator‐> tunnel heat exchanger-> pump‐> engine.

Using a snowmobile heat exchanger, it should be plenty big enough for cooling needs. Will that setup give me enough coolant volume? Or should I add in a bottle?


Well-known member
Lifetime Membership
Dec 5, 2016
Woodinville WA
You'll have more than enough volume with the hoses and the exchanger as it is. But you can drop the radiators and use a bottle for fill and expansion. I have a 2 thermostat design on my cr500... One to exchanger and a higher temp on to kick in one radiator for thin snow... Its unnecessary with ice scratchers.

I have a thread with visio drawings and all kinds of stuff in here from that build.
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