Jump to content
SAU Community

Recommended Posts

Hey guys I brought a r33 a little while ago and have converted it to a n/a. It was fairly easy although it's now running low compression etc. I still have the turbo ECU in it as the car is running alright. Car is having some trouble starting but have been told that could be fixed if I get the car tuned? Does anyone know what it would take to have the car running decently. I am 16 so putting the turbo back on is pointless as I wouldn't be able to drive it. If anyone could help me that would be greatly appreciated.

Link to comment
https://www.sau.com.au/forums/topic/450493-turbo-to-na-conversion-in-a-r33/
Share on other sites

As stated above, stock ecu and stock injectors,

I think you would need some sort of engineering certificate when trying to register a turbo charged car as a non turbo? Emissions testing, exhaust pollution and all that kinda jazz? Im just guessing here...

  • 3 weeks later...

NSW has power to weight ratio of <130kw.
Turbo ban was lifted 6 months ago. You can drive turbo in nsw if it is under 130kw which the gtst is not. So i guess you have to convert to n/a and try get it under 130kw per tone. Which i think is what will happen if you convert it to rb25de. Seems like a f**king hassle, i'd just buy a gts if i was you and sell the gts-t

  • 5 weeks later...

if its in nsw it doesnt need engineering, it just needs a blueslip, as its no different to changing it to the rb25de that came in the car standard as well. then its registered as a non turbo r33 as if you bought a non turbo one. if its around sydney and everything in the car is legit and road worthy i can help you there provided you dont mind bringing the car to hurstville, if its a rubish car, rust, lowered, loud, dark tints, huge wheels or anything like that then i cant help though.

Edited by Scott Black
  • Like 1

if its in nsw it doesnt need engineering, it just needs a blueslip, as its no different to changing it to the rb25de that came in the car standard as well. then its registered as a non turbo r33 as if you bought a non turbo one. if its around sydney and everything in the car is legit and road worthy i can help you there provided you dont mind bringing the car to hurstville, if its a rubish car, rust, lowered, loud, dark tints, huge wheels or anything like that then i cant help though.

^ if you're in nsw. This is 100% correct.

Any type of engine conversion that the make of car came with from factory needs a blue slip and change of engine I.D on the rego papers. And that's it.

There are also small loop holes when you really start looking into engine conversions of other makes. It's actually pretty cool some of the combos you can do.

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...