Temperature of the Exhaust Manifold?
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09-27-04, 07:26 AM
#8
Racing Rotary Since 1983
iTrader: (6)
i wouldn't recommend thermo coating your oem turbo manifold. it is already way past it's ability to absorb the heat from the rotary as proved by the fact that most oem manifolds have lots of severe heat stress cracks.
in addition, if i were running an oem turbo setup i would be looking for ways to radiate the manifold heat away from the motor. the manifold is 22 pounds of heat retaining cast iron and heat soaks the motor something awful.
i believe the 22 pounds of cast iron may be at the top of the list of rotary engine killers. remember that the rotary makes approx 500 degrees more exhaust temperature than a piston engine.
howard coleman
in addition, if i were running an oem turbo setup i would be looking for ways to radiate the manifold heat away from the motor. the manifold is 22 pounds of heat retaining cast iron and heat soaks the motor something awful.
i believe the 22 pounds of cast iron may be at the top of the list of rotary engine killers. remember that the rotary makes approx 500 degrees more exhaust temperature than a piston engine.
howard coleman
09-27-04, 02:36 PM
#9
Lawn Ornament
Thread Starter
Originally Posted by howard coleman
i wouldn't recommend thermo coating your oem turbo manifold. it is already way past it's ability to absorb the heat from the rotary as proved by the fact that most oem manifolds have lots of severe heat stress cracks.
in addition, if i were running an oem turbo setup i would be looking for ways to radiate the manifold heat away from the motor. the manifold is 22 pounds of heat retaining cast iron and heat soaks the motor something awful.
i believe the 22 pounds of cast iron may be at the top of the list of rotary engine killers. remember that the rotary makes approx 500 degrees more exhaust temperature than a piston engine.
howard coleman
in addition, if i were running an oem turbo setup i would be looking for ways to radiate the manifold heat away from the motor. the manifold is 22 pounds of heat retaining cast iron and heat soaks the motor something awful.
i believe the 22 pounds of cast iron may be at the top of the list of rotary engine killers. remember that the rotary makes approx 500 degrees more exhaust temperature than a piston engine.
howard coleman
dont have to worry about that hunk of metal
09-27-04, 05:15 PM
#10
Originally Posted by howard coleman
i wouldn't recommend thermo coating your oem turbo manifold. it is already way past it's ability to absorb the heat from the rotary as proved by the fact that most oem manifolds have lots of severe heat stress cracks.
in addition, if i were running an oem turbo setup i would be looking for ways to radiate the manifold heat away from the motor. the manifold is 22 pounds of heat retaining cast iron and heat soaks the motor something awful.
howard coleman
in addition, if i were running an oem turbo setup i would be looking for ways to radiate the manifold heat away from the motor. the manifold is 22 pounds of heat retaining cast iron and heat soaks the motor something awful.
howard coleman
It seems to me horsepower heat soaks the motor more than a hunk of additional metal. The only real solution is a different manifold that can handle more rapid cooling, and then to remove the heat shields. But I guess inconel turbo housings might get a tad costly
Dave
Last edited by dgeesaman; 09-27-04 at 05:17 PM.
09-27-04, 05:34 PM
#12
Lawn Ornament
Thread Starter
Originally Posted by witepsycho
hot enough to burn the **** outta you
good job there buddy
09-28-04, 06:41 AM
#14
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Originally Posted by c00lduke
I used the JetHot 1300 on my manifold and it started peeling off pretty soon. I've put the 2000 on and so far so good.