Thread: machining for teflon valve seals

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Originally Posted by C9x

Coil bind wasn't a problem.

Springs can do weird things when mechanically excited.
A good example may be a Slinky.
Hold it up so it's stretched out fairly well, strike it gently with a screwdriver or metal rod.
Take note of the oscillations produced.

It's especially interesting to press the upper end of the Slinky to your ear, strike it and listen to the jangling noises it makes.

High speed motion pictures have shown valve springs operated at high speeds do some weird things.
No small wonder they break.

Sell crazy somewhere else.
We are all stocked up here.L.O.L.

Originally Posted by thesals

the singles should work out just fine if your max rpm is 6000.... make sure to definately get quality springs rated at least .020 over your max life.... i like to make sure they're close to my max lift but still just a bit over... you'd be amazed what happens to the valve train at those kind of rpms.... you can get stuck with coil bind or valve floating.... even though floating valves wont leave you stuck on the road unless they float enough to hit each other

these are good quality springs. the max lift on them is .700, I plan on running .470 or so max figuring in the 1.65 rockers

i dunno... that spread on the spring lift capabilities might actually kill a little bit of performance...... do they make the same springs with lower lift ratings.... if you could get it in like a .500 that would be a lot closer

Originally Posted by thesals

i dunno... that spread on the spring lift capabilities might actually kill a little bit of performance...... do they make the same springs with lower lift ratings.... if you could get it in like a .500 that would be a lot closer

it's looking like that's it, for performance springs anyway