Hi all, I know that PDW sells a 5GSK for $175 but what all else is needed to safely turn those RPM's? I am only really looking for 4500-4700RPM... But a little extra potential is ok Are 60lb. Valve springs stout enough or would custom springs be needed? Other than that what other add-ons are necassary? I would also install a Fluidamper to help keep harmonics inline Thanks everyone!

 

Id like to know as well, also on a 24v (sorry I dont mean to jack your post)

 

5000 RPMs out of a 12 valve? wowzers

 

I'd say yes for a play truck. No for a daily truck. Sounds like something's gonna break.

 

I don't see anything over 3000-3500 being useful unless you are sled pulling where you need the rpms, and you don't exactly have a sled pulling clutch. Don't feel bad though, I don't either.

 

Balance, fly cut, billet cam, pump work$$$, cam retainer, girdle, studs, fire rings, water relief, valve train, etc. etc.

 

On a stock cam all you are doing after 3k rpms is making heat But man they sound good at 4k and up

Eric

 

definately get some high quality retainers and locks... the stockers like to try to pull the keepers through the retainers at high RPM!!

 

To hold things together ^^^ is correct. The list really is longer than that too (as the "etc. etc." would suggest).

 

5k is not really hard to get to with a 12v. This one let go at 7710 per the taddle-tale button.

Click here to see Video

 

Man that thing sounds wild

 

That was a bad day.. It was crazy to see in person.

 

WOW!!! That was cool. Not cool that he just destroyed a very expensive engine but cool watching it do it. How'd it hit 7700 rpm?

 

When it's setup and has the power to spin to 6K under load, then all at once the load comes off the engine, they will over rev really fast!!!

I think he broke the Ring and pinion on that run, and then the engine over revved and blew...cause and effect kind of deal! At least that's what I think I remember from that pull!

Chris

 

The tranny failed and now you can put your head through the hole in the block.

brnaond.