Predator 212 valve springs

[I.steve_30]

I recently bought a predator 212, and haven't done many mods except for a high flow air filter, header and removed the governor. I was testing the new engine out and the pushrod popped out of the rocker arm at high RPM, I suspect I need heavier valve springs. What lb springs should I put in it to keep thay from happening again? Also i don't plan on doing many more mods except for bigger carb jets.

 

[Hobbs]

With a stock cam 18lb springs will probably be all you need.

 

[I.steve_30]

With a stock cam 18lb springs will probably be all you need.

What lb springs does it come with out of the box?

 

[Hobbs]

I’ve never checked but I suspect them to be about 10lbs out of the box similar to clone springs.

 

[DynoDon]

The springs didn’t cause the pushrod to jump out. The rocker wasn’t adjusted properly

 

[racinnut15xm]

Hemi or non-hemi?

 

[madera cruiser]

We run 10.8# springs to 7400+ rpm.

 

[Hobbs]

We run 10.8# springs to 7400+ rpm.

On a predator?

 

[Pk in oregon]

We run 10.8# springs to 7400+ rpm.

That is probably a little risky

 

[DynoDon]

You won’t be running that on a stock rod for long

 

[madera cruiser]

Yes on a predator non hemi. Never said stock rod.

 

[DynoDon]

And you never said you weren’t. Those kind of rpm without any of us knowing you have a better rod makes those of us who help answer questions raises our eyebrows lol.

 

[madera cruiser]

And you never said you weren’t. Those kind of rpm without any of us knowing you have a better rod makes those of us who help answer questions raises our eyebrows lol.

Did you know some new Predator non hemisphere are coming with 18# springs? OP asked what springs he should use to keep the push rods seated. I gave him my experience.

 

[DynoDon]

Gotchya

 

[KartRacingLA]

Did you know some new Predator non hemisphere are coming with 18# springs? OP asked what springs he should use to keep the push rods seated. I gave him my experience.

Can you give anymore insight to this as most kart tracks tech predators compared "to known stock part"

 

[probeman6]

Can you give anymore insight to this as most kart tracks tech predators compared "to known stock part"

I noticed the same with 2 predator non hemis I recently purchased brand new. Not sure on exact weight of spring but they definitely feel stiffer than the older ones. Kind of concerns me as our local tracks do the same comparison to stock parts so hopefully they are aware of this.

 

[DynoDon]

I don’t like that word “feel”. I haven’t heard or seen of any different springs.