|
v8 engines of the sixties and earlier had a bimetallic spring and a flapper valve on one exhaust manifold that would divert exhaust through the intake manifold during warm up, nothing new here.
Just use an on-off valve to let coolant into your exhaust heat exhanger when cold, turn the valve off when warm. Have a check valve at the bottom to let coolant out of the exchanger when it boils. When it all boils out, no problem. Make it from welded stainless steel.
__________________
- Tony
|