When do I need to upgrade valve springs and keepers?

[chvyrkr]

Just like it says guys. I could sort through any posts, but I thought maybe it'd be cool to see what everybody thinks based on a poll.

I'm gonna go with 230ish hybrids and an H2E next round of mods.

I may upgrade after that.

So, let me know. The rest of the mods are in my sig...

[chvyrkr]

help me out

[Dirk]

Missing option:


Yesterday.


Install now.

[Ryan Rønning]

I dont know but I would believe Dirk since he is famous for doing it!

[chvyrkr]

Hmm, well I was told that superduty heads were good to 35-37 pounds of boost.

Guess it's another example of bad information being very believable when well delivered...

[Ryan Rønning]

I hope they are good for more then that. I have hi over 40 many times!

[Dirk]

Originally Posted by chvyrkr81

Hmm, well I was told that superduty heads were good to 35-37 pounds of boost.

Guess it's another example of bad information being very believable when well delivered...

You said valve springs and keepers, nothing about the heads.

[chvyrkr]

Originally Posted by Dirk

You said valve springs and keepers, nothing about the heads.

Well maybe in my ignorance I'm lumpin it all together. I was kinda figurin when I did studs, I would do springs and keepers, if it's necessary. Figured if the head gaskets were good to that lvl, then it all would be. I figured the gasket would be the weak link there.

[chvyrkr]

Originally Posted by RRonning1984

I hope they are good for more then that. I have hi over 40 many times!

Jeez! I'm not even peggin my 30 pound gauge.

[Dirk]

You can take a 7.3 above 40psi. It's the peak cylinder pressure that will kill a 7.3 without studs.

The weak point on a 7.3 head is the valve springs. Replace asap. The stock keeper are fine with comp 910's.