Jump to content
SAU Community

camshaft upgradingR33 GTR

pulse_30

By pulse_30,
in Engines & Forced Induction

 Share

Recommended Posts

pulse_30 Newbie

pulse_30

Posted
Posted

I'm thinking of upgrading my R33 GTR camshaft to 272 stage 2 with valve spring. I've heard that several modification has to be done. Maybe head shimming or something with the valve / shim the tappet as the lift is higher. Please advise. As i know for stage one camshaft (272 also), i've installed into my friend's car without any modification on the head and no problem to date. Any advise is highly appreciated.

Link to comment
Share on other sites
Gav Mentor

Gav

Posted
Posted

Don't make my mistake. I ordered valve guides, springs and retainers after I bought my step 2 cams. There was a lot of additional machining/shimming.

Buy the set with the cams as they will all be matched. Should only have the machining to clear the lobes and basic shimming to do then.

Link to comment
Share on other sites
ylwgtr2 Grand Master

ylwgtr2

Posted
Posted
Don't make my mistake. I ordered valve guides, springs and retainers after I bought my step 2 cams.  There was a lot of additional machining/shimming.

Buy the set with the cams as they will all be matched.  Should only have the machining to clear the lobes and basic shimming to do then.

HUH????Just buy the cams and springs.....mill out the head....then fit them in and adjust the shims......whats "the set"????

Link to comment
Share on other sites
Gav Mentor

Gav

Posted
Posted

Main issues are the valve guides and retainers - apparently there are a number of different types depending on the lift (or "Step") of the cam. I haven't talked to the workshop that did the head work, but at a guess I would say I bought the "Step Pro" instead of the "Step 2".

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • rbs30
      RB gearbox options

      By rbs30 · Posted

      That’s a great deal and I would jump on it if you were closer. Melbourne is a bit of a hike for me though unfortunately 
    • soviet_merlin
      Fake ARP bolts?

      By soviet_merlin · Posted

      I wonder if there is much to tell without knowing where the bolts where bought from. If it comes from Amazon or similar all bets are off. Can't trust them. And I fear not everybody knows that. Wasn't it @TurboTapin who ended up with the fake fuel lines recently? The submersible ones which very much weren't submersible at all. It kind of applies to everything nowadays. Doesn't matter if it's hardware or electronics. The fancy camera might have internals swapped out for cheap knockoffs. The hard drive will report a certain size but not actually be able to write it all. Shit like that. A bit depressing but the reality is you really have to be weary of where and how you buy stuff
    • MBS206
      Fake ARP bolts?

      By MBS206 · Posted

      My guess is, cheap rods, came from a site selling lots of cheap things, and likely a lot of knock off stuff.   I get doing a cheap build, but I don't get doing a huge dollar build, and then skimping on something even like the rods, and likely the bolts to go with it, especially if heaps of stuff had to be fabricated!
    • 25RBGT
      Got this r31 silhouette flood car to rebuild.

      By 25RBGT · Posted

      Today myself and a mate tracked a fuel pump issue down to this amazing piece of workmanship in the fuel cradle loom. Covered by conduit and electrical tape. so now we should be moving onto the first fire once this is corrected. 🤞🤔
    • MrCodZilla
      370GT ( Type SP ) - Sedan - Cruise Control - Forced Induction - EcuTek

      By MrCodZilla · Posted

      1000% percent the looks just aren't visible, I was shocked when i found out the the only thing holding the OEM diff ( rear side ) is one stud was can easily crack when trying to launch the car or really beating on it, hence why this brace connects to the subframe/control arms and even includes a fancy jackpoint, With the forced induction route, I would have quickly launched the diff out the back of the car without this upgrade. The Z1 and GK tech don't offer the same "cool" look so to speak.
×
×
  • Create New...