Jump to content
SAU Community

Recommended Posts

been looking at the Greddy copy plenums.. iv had a read of a few topics and no one seems to say much bad about them?

question is anyone got one? did you notice any difference?

and duz anyone sell them on these forums?

cheers

I got one on my stagea recently (lots of other stuff at the same time). It is pretty good for the price but there are some things to watch out for like making sure the manifold surface is dead flat before you put it on. and some custom stuff needed like throttle body mounting and cable, aac mounting etc etc

pretty sure just jap sell them

I had an ebay one on for 1.5years.

Never saw a problem. Weren't any defects in the plenum. Didnt have any cyl 6 problems.

But I wouldn't recommend one for a more extensive build.

i was assuming all of the chinese copy manifold were coming from the same factory? as none of them are stamped or anthing? some just polish them up or powder coat them.. are the ebay one just the same?

Unknown quality of the metals used means porosity is a real issue to be aware of.

Mine was stripped back for some extensive finishing work, but got a heavy coat of epoxy enamel before installation.

The Chinese supplied it with a heavy coat of paint probably for the same reason.

myself and 2 others i know are using them, the chinese greddy ones, and they all had water leaks. my one leaked from the water gallery out of the manifold, the other 2 leaked into a port. both No2 runner i think. We all used some of that devcon stuff that my mate aquired from work and gave the water port between No1 and 2 a thin coating.

well, a guy who used to be mates with mafia from here had one on his rb25 and it had the same shit water jackets and leaking issues.

i have personally sold over 8 of them in the last 12 months and had no problems or comebacks. only issue i had was that they dont come with new rubbers for the injectors, but that was a quick trip down to the local nissan dealership.

honestly, they come up really good, and come polished on most surfaces.

only thing that is worth doing is maybe port matching and cleaning up some of the cast markings, as it is only a china one...

www.autotecnica.com have a geezer anyway.

i'm not going to plug the store i work for, as they dont pay advertising, but its pretty easy to work out who sells autotecnica anyway.

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


  • Similar Content

  • Latest Posts

    • Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
×
×
  • Create New...