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06-13-2008, 11:32 PM

Sure, I know the definition of Valve float. When the valvetrain cant keep up with the valve opening and closing the parts kind disconnect and hammer against each other causing impact damage and so on. That being said, You can design camshaft lobes and be easy on parts thus reducing valve train failure. Right now it's a risk and reward, guys want to run big agressive lobes and make big power. The reward : an engine and revs high and makes big power throught the range, resulting in Fast ET's, good quailfying stats. The Risk: unstable valvetrain a chance for catastrophic failure. The racer will have to decide whats is more important, Running fast or running safe. You can have a guy in Tech have an on the car valve spring checker. He he pulls it on the car and the pressure is way over he's out.Guys back in the 70's and 80's had no Shubecks, or big valve springs. They survived and raced. What happens when engines are running super high RPM and they start coming apart, will guys start lobbying for lightend bottom ends because it's a safety factor??? I'm sure of it. This is not an easy game, guys been playing for along time within the rules and being succesful. SOME of the racers of today don't want to make what they have works, so they Bitch and cry for rule changes because they ran out of talent, money and the will to make due with whats available. This is what stock is about.

Todd, many of the stockers are running high pressures with Schubecks and many engines are already turning high RPM's. How are you going to check for springs pressures on every car at every race? Don't you realize that what you are proposing would create more engine failures? Do you know the definition of "valve float" and its consequences?

06-13-2008, 11:32 PM	#78
Todd Hoven Guest Posts: n/a	Re: Roller Rockers in Stock Sure, I know the definition of Valve float. When the valvetrain cant keep up with the valve opening and closing the parts kind disconnect and hammer against each other causing impact damage and so on. That being said, You can design camshaft lobes and be easy on parts thus reducing valve train failure. Right now it's a risk and reward, guys want to run big agressive lobes and make big power. The reward : an engine and revs high and makes big power throught the range, resulting in Fast ET's, good quailfying stats. The Risk: unstable valvetrain a chance for catastrophic failure. The racer will have to decide whats is more important, Running fast or running safe. You can have a guy in Tech have an on the car valve spring checker. He he pulls it on the car and the pressure is way over he's out.Guys back in the 70's and 80's had no Shubecks, or big valve springs. They survived and raced. What happens when engines are running super high RPM and they start coming apart, will guys start lobbying for lightend bottom ends because it's a safety factor??? I'm sure of it. This is not an easy game, guys been playing for along time within the rules and being succesful. SOME of the racers of today don't want to make what they have works, so they Bitch and cry for rule changes because they ran out of talent, money and the will to make due with whats available. This is what stock is about. Todd, many of the stockers are running high pressures with Schubecks and many engines are already turning high RPM's. How are you going to check for springs pressures on every car at every race? Don't you realize that what you are proposing would create more engine failures? Do you know the definition of "valve float" and its consequences?