E-85 MEGA THREAD
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#333
Drive-by provocation guy
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From: NAS PAX River, by way of Orlando
If all the issues seem to start from steam pockets, than Evans could be the best approach for all of us to be running.
#334
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Corleone, your motor looks great, and I'm sure it's fun! What did you do to confirm/determine that the head was developing steam pockets without the vents? Is that an educated guess or is there some way you (and others) can confirm that the head is developing steam pockets? I'm not doubting you, just looking for whatever info you can share. Thanks.
#335
Corleone, your motor looks great, and I'm sure it's fun! What did you do to confirm/determine that the head was developing steam pockets without the vents? Is that an educated guess or is there some way you (and others) can confirm that the head is developing steam pockets? I'm not doubting you, just looking for whatever info you can share. Thanks.
#336
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Corleone, do you have any pics of your motor completed with all the steam vent kits in situ? Do you run these back into some sort of secondary expansion tank? Are they one way valves and what happens to the possibility of cavitation?
#337
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From: NAS PAX River, by way of Orlando
Would it be a better approach to try to eliminate the steam rather than swiss cheesing the head to relieve the steam?
#338
The steam is produced by the increasing heat, like when you boil food so its impossible to have a steamfree cooling liquid as the heat increase and micro boil. Of course Evans Cooling is another thing.
#339
Race Car
I think I have been pretty fortunate due to the utilization of an electric water pump feeding coolant to the rear of the head via a 5/8" fitting rather than the small steam vent kit. Besides, I had to use the old turbo water pump for something
I had said in the past that I like the idea of individual cylinder relief ports like we used to do on our old SBC's. It looks like Corleone has proven them to be worth it.
Cylinder temp equalization is key with these engines I am thinking..with any engine really... but these almost require it to last.
I had said in the past that I like the idea of individual cylinder relief ports like we used to do on our old SBC's. It looks like Corleone has proven them to be worth it.
Cylinder temp equalization is key with these engines I am thinking..with any engine really... but these almost require it to last.
#340
Rainman
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plumbed to where...heater neck?
#341
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no tapped at the same spot where you install the Lindsey vent kit usually.
Using the port that is usually used for the turbo water pump to feed fresh coolant back there.
IMO the factory waterpump does not move enough fluid to be effective at keeping the deck totally cool in the back cylinder(s).
Using the port that is usually used for the turbo water pump to feed fresh coolant back there.
IMO the factory waterpump does not move enough fluid to be effective at keeping the deck totally cool in the back cylinder(s).
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From: NAS PAX River, by way of Orlando
#343
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From: NAS PAX River, by way of Orlando
no tapped at the same spot where you install the Lindsey vent kit usually.
Using the port that is usually used for the turbo water pump to feed fresh coolant back there.
IMO the factory waterpump does not move enough fluid to be effective at keeping the deck totally cool in the back cylinder(s).
Using the port that is usually used for the turbo water pump to feed fresh coolant back there.
IMO the factory waterpump does not move enough fluid to be effective at keeping the deck totally cool in the back cylinder(s).
So you just un hooked the "out" of the turbo pump and re plumbed it to the port at the back of the head?
Can this be done without pulling the head?
#344
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A) Very slippery. Very very. Bad enough that its like oil, and some (most?) tracks ban it for fear of spills and leaks.
B) Expensive. $30-40 a gallon IIRC.
C) No water in the system. None. Period. So carry a spare jug of Evans.
D) It doesnt evaporate at all. This is also a pro, but its a con if you spill it or get a puddle on the engine, its there for a long time.
But the pros are very good.
1) Very low pressure (a few PSI) so very easy on hoses and such.
2) Very long life.
3) Doesnt boil till a very high temp, so should reduce (eliminate??) steam pockets.
4) Reduce hot spots.
#345
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I guess the workaround might be hooking up a garden hose and pressurizing the system, then drill and let the water flow out past the drill bit to carry the metal out. But that sounds dicey.