coates cylinder head, rotary springless valve system
#1
Newbie
Thread Starter
coates cylinder head, rotary springless valve system
a client of mine just informed me of this valvetrain, it seems pretty brilliant and on the page of the creators they seem to rave about all the benefits. when i read it makes sense...
according to my client they threw this on some old pushrod lincoln v8 with a few modifications doubled power and thermal efficiency.
they are essentially using a spherical valve system, kind of like how a rotary engine uses the pistons to intake and evacuate gasses from the cylinder, at certain ports throughout the cycle, the rotary cam would have a similar chamber that rotates exposing only half the valve to heat from combustion and replacing hot spot with a spherical seal. also, no valve opening into the chamber which means more valve timing flexibility.
pretty interesting stuff.
http://www.coatesengine.com/csrv-advantages.html
according to my client they threw this on some old pushrod lincoln v8 with a few modifications doubled power and thermal efficiency.
they are essentially using a spherical valve system, kind of like how a rotary engine uses the pistons to intake and evacuate gasses from the cylinder, at certain ports throughout the cycle, the rotary cam would have a similar chamber that rotates exposing only half the valve to heat from combustion and replacing hot spot with a spherical seal. also, no valve opening into the chamber which means more valve timing flexibility.
pretty interesting stuff.
http://www.coatesengine.com/csrv-advantages.html
#3
Evolved Member
iTrader: (19)
Claims like not being dependant on foreign oil and no oil changes for 50k make me think that the big oil companies would not like this very much.
#4
Newbie
Thread Starter
i'm pretty sure they used this technology in some late 90's f1 engines... but they say they can make the head per request. I wonder if anybodies tried to throw this on a 4g63-4 motor... if you used a different head I imagine you could solve quite a few bad seal hg's on those 4g64's. imagine revving up to 15k... wonder if the crank could handle it. I saw on youtube one guy takes it to 11k not sure if it's stock crank, or rods... but could make a wickedly fast trap car... you could finish a 1/4 in 4th at almost 200 mph.
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