Another cheap *** budget 318 build

[toolmanmike]

Talking about springs, are beehives a good idea?

 

[TT5.9mag]

Talking about springs, are beehives a good idea?

A good idea? There’s a debate to be had with lots of opinions. I’ll say this, beehive springs can be an option.

 

[MidnightSwinger]

Nice to meet you man! Good luck with the project.

 

[Slantsix64]

Not valve reliefs but a dish. And it’s not lift that gets you in to piston kissing territory. It’s the duration. .900 lift won’t hit the piston at 200 degrees duration @050. But .480 lift will at 250 degrees @050.

Oh yeah correct, that’s a good explanation!

 

[Slantsix64]

Nice to meet you man! Good luck with the project.

Like wise Jared!

 

[Newbomb Turk]

Talking about springs, are beehives a good idea?

Yes and no.

Yes if the spring fits your needs.

No if you are doing it for clearance.

I don’t use them for anything with rpm over 7k. I’ve never seen them work there, but I haven’t used them in 20 years. And I’m old enough Im not experimenting unless the customer is willing to pay for it when they don’t work.

I have an engine on the dyno that at 6100ish was so pissed off it wouldn’t rpm past it.

We changed the springs. The diameter of the spring was bigger as was the wire diameter. But the seat and open pressures were within 10 pounds or so of each other.

Now it rips right up to 7k.

There is more to valve springs than just the pressures. I usually use the biggest OD spring with the biggest wire diameter when I can. Especially on flat tappet stuff where you are limited to about 400ish open pressure. And you are using steel valves.

It’s very hard to control that stuff.