Jump to content
SAU Community
  • Welcome to SAU Community

    Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. Be apart of SAU Community by signing in or creating an account.

    • Start new topics and reply to others
    • Subscribe to topics and forums to get email updates
    • Get your own profile page, build reputation and make new friends
    • Send personal messages to other members.
    • See fewer ads!

    Consider joining our newsletter for the latest content updates

    Click here to register

Rb25det Intake Cam Adjustent With Oem Cam Gear ---- Nbeed Help

RS Speed

Recommended Posts

I pulled the vtc mechanism off the intake cam gear to get some powdercoating done. when I came to install it I realized the cam gear is slotted where the VTC unit is bolted onto the gear. From the front of the motor you see the thread end of the bolts that are holding the VTC to the gear so it's not noticeable unless you have pulled the intake cam gear. So it leads me to this#1 I kinda screwed myself since I don't know what position I should tighten the VTC unit onto the camgear. Since the solenoid drives the cam and the gear is driven from the belt it ends up screwing with my cam timing since its acting like a adjustable cam gear and I have no reference points to go from...

#2 so I guess the OEM RB intake cam is adjustable from the factory? its just doest't have timing marks but if I marked it before I took it off I would be able to adjust a few degrees off the stock position. Only problem is the gear needs to come off for adjustment and it would require a dyno run to see if you are hurting or helping lol

anyways... any chance someone has a picture of the backside of a intake cam gear so I could see the orientation of the VTC unit in respect to the gear

Link to comment
Share on other sites

so does anyone know the orientation of the VTC unit to the gear?

the vct gear is adjustable we use that as a tuning aid on a lot of our builds. the washers will leave a witness mark were they have been from the factory, i suggest to set them back there and set the timing belt up as standard. advancing the gear on its slots will give less cam advance and retarding will give more cam advance.

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

  • Latest Posts

    • https://www.gtrusablog.com/2018/04/split-twin-turbo-pipes-by-alex.html https://www.gtrusablog.com/2013/01/divided-rb26-twin-turbo-pipe.html Cheap mod, doesn't hurt to try
    • Your stuff look much better than the original stuff I used on my tri-y headers, which didn't survive the swap, that did work OK though, but currently the headers are only ceramic coating, which, while it is meant to be the bees knees, it really only reduces temps by "not alot" and is more for protecting the mild steel pipes The new stuff is meant to maintain an "air gap" which "apparently" helps the insulation LOL In other news I'm taking it into Autotech next week for them to have a look at the RaceTCS, the spot where I want it, and the program "thingie" that is on my lap top computa which you would know as it is basically the same thing as your Racelogic  I'm really keen to get this fitted  
    • OK, a couple of questions arise. Are you suggesting that you want to swap to the S2 ECU so that you can Nistune it? Because....none of the R33 ECUs can be Nistuned. What would an ATESSA controller do to help? You have no ATESSA. Beyond that, the S1 and S2 ECU pinouts are nearly identical, as far as I can remember. A quick look around on SAU yields the following for S1. As I said, almost all of it is identical. I think there might be a few changes around the AFM and the ECCS relay, not much else. There's not functionally anything particularly different between a manual and auto ECU pinout. Can run a manual engine on an auto ECU quite trivially, for example.
    • Hey guys Was recently replacing the water pump and timing belt. Came across one of the washers for the timing gear and balancer were bent. Just wondering how that would of happened
  • Create New...