Jump to content
SAU Community

Help Needed

MissR34

By MissR34,
in South Australia

 Share

Recommended Posts

mark99 Contributor

mark99

Posted
Posted
when i asked in the n/a part i was asked "why i wanted to make my car into a racecar" because i want bigger cams

Dont listen to them. Cams are a personal thing some people love big cams, some people hate 'em. If you like the sound of an engine with bigger cams in it, then for an n/a engine with the mods your car alrady has on it, cams and tuning to suit are a logical step.

mark99 Contributor

mark99

Posted
Posted
^^ agreed

its just proving a little hard too find cams to go in the r34 non turbo at the moment all i can seem to find is the ones for turbo.

Im not 100% sure on this but you might find your best bet is to go with r33 rb25det cams, and change the cam angle sensor drive in the front of the cam to suit your r34 cam angle sensor. Im pretty sure r34 turbo are solid cam, where as non turbo is hydraulic, so for simplicity if you stay with hydraulic cams from other rb25 engines, other than the cam angle sensor i think they should fit straight in (any one feel free to tell me if i've over looked something else). Im not sure what the assembled height of the valve spring on the non turbo neo is like compared to the turbo rb25, i wouldn't think it could possibly be any worse, so valve springs should to be able to be sorted one way or another.

If you add adjustable cam wheels, then the fact that they are "turbo cams" really should not matter, as long as the lift and duration are relatively larger than standard. Whoever tunes the car will be able to adjust the lobe seperation to suit n/a application with the cam wheels. For all intents and purposes, lobe seperation is the biggest difference between n/a cams and turbo cams, so with adjustable cam wheels, this is not such an issue.

Hope that helps, but like i said dont quote me on this. Im going on memory for all of it, and i may have overlooked something. But it would be a good place to start

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

    • KKaplumbaa
      SR20 to cefiro

      By KKaplumbaa · Posted

      I hope one day I can do it like you. Your engine looks great.
    • KKaplumbaa
      SR20 to cefiro

      By KKaplumbaa · Posted

      If there's nothing else I can do I'll probably do something like that Someone on the internet said that ca20s and ca18 engine blocks are the same and that you can use a ca20 engine block and put ca18det parts to make a ca20det Do you think this is possible or will it damage the engine?
    • KKaplumbaa
      SR20 to cefiro

      By KKaplumbaa · Posted

      Yeah, I did some research and found out that some things are different.
    • soviet_merlin
      Shifting questions

      By soviet_merlin · Posted

      Makes sense, thanks! Consider me very impressed. And I very much appreciate the effort in documentating all of it. You'd be surprised, or maybe not, how many people this reaches who search for things online. Anyways, I shall continue to read all of it, understand maybe a quarter, and hope that some of it sticks if I ever end up in a situation where it's relevant
    • dbm7
      Shifting questions

      By dbm7 · Posted

      'Did' work on them is more accurate ~ on the R31 Skyline forum, you can spot me as 'Solder'... I've written quite a bit about the 4R01 boxes there, and I ended up reverse-engineering the older TCU type operations, so we could fudge a custom TCU to pull off other tricks...and like all things, when you do it a lot, see the failure patterns, have to find parts etc etc, your head ends up filled with whys and wherefores... there was a reason Nissan went with these in more than 60models over 16+ years... all in all, the JR401E based design is an interesting study, as Nissan changed things over the years in a never ending battle against them lunching on themselves <grin>...by the time the RE4R01A rev.C came out (often referred to as RE4R01B), they'd more or less perfected the design...  
×
×
  • Create New...