Jump to content
SAU Community

Recommended Posts

i have a n/a rb30 in a nissan patrol its getting turboed but wana leave compression up so it holds back better going down hills and keeps the low down power for 4wding wot kind of boost can i run with a top mount to keep it from crapping its pants?

just use the normal RB30ET setup and you will be fine on the RB30E

Plenty of people have made 200rwkw on a N/A motor converted to DE.

Remember 15-20 years of fuel development has had its advantages. So use good fuel/tune, you wont have a problem

If you are looking at only the stock rb20 or rb30 turbos you dont really need to top mount them. You will just lose some responsiveness. And the choice of the turbo really depends on how quickly you want it to come on to boost. Personally I think the rb20 turbo will be too small for the 3L. I would be putting on a rb25 turbo at the minimum.

A stock turbo(t3) will be fine. The smallest i'd go would be the rb25. I was thinking of that for a family car project.

I had a t3/4 on stock engine for ages. Ran 10psi boost with a front mount intercooler. I ran 7 pound with the standard crossover pipe but had to retard the ignition only a couple of degrees to curb detonation. I think i even used standard 91 octane fuel.

Is the rb30 gonna be carb still or using fuel injection?? I think a top mount intercooler will be ok as long as your not putting much more than standard boost in and you have a big enough scoop.

Good luck with the conversion.

My mate had a short wheeled with rb30 turbo. Was nuts..

NA compression is fine for turbo. use the standard vlt setup as said. dont use a rb25 turbo, would need to rotate housings and then make a custom dump and probably oil and water lines too. stock vlt turbo bolts up

had a Hypergear Tr43 on stainless highmount manifold, at 11psi we made 190rwkw, that was with a shit homemade restrictive dump pipe!

darkhalf ECU

VLturbo injectors

monza intercooler

easiest conversion is get the VL turbo stuff and bolt on. ebay has a setup for $400

Eaton M60 from a VT V6 supercharged.

For bottom end torque, there is NO substitute for a supercharger.

Alternatively, rip it out and put a diesel in it like a man would do. Then you can do fully sick water crossings and not drown your engine.

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

    • Can't say I've had a bad experience with one on my car, then again it only gets washed once or twice a year... The wheels on the other hand, get a good spray often due to my shitty dusty pads.
    • @MBS206 thats pretty neat and tidy to me!  I'll get a photo of mine when I'm out there next. It might require multiple photos to understand the scale of the atrocities though... In total I have 4 sheds of varying sizes and layouts. Main shed is 14x8, second shed is 3x8, third shed is 11x2.5, fourth shed is around 6x4.  All are pretty much full.   The main goal of my cleaning tsunami is to make the main shed predominantly car and motorbikes only. Second shed is my metal fab room (2 x bench grinders, drill press, bench belt sander, metal band saw, scrap metal storage and some of my garden tools.  3rd shed is more bigger garden stuff, storage for engine crane, jack stands, concrete grinder, concrete mixer, air compressor lives there, and it now has two 2mx2m pallet racking shelves with itemised boxes holding building stuff, electrical stuff, plumbing stuff, etc, etc.  The 4th shed is Ryobi electric ride on mower, mini boom sprayer, ancient Kubota tractor, more garden stuff!  I have got a lot of shit....  Then there's the pool house (8mx4m) and the pool pump shed (4mx4m).  I built all of the sheds over the 11 years we've been here.  The main shed was a Ranbuild kit, the rest are all custom made to fit the areas available. Building the main shed taught me a LOT as I had no idea about building anything prior to that!  I've still got one more in me. It will be my man cave which I poured the extra concrete for way back when I poured the concrete for the main shed. The idea is the Skyline will be a centre piece of the main cave once (if...) it's finished.  I told my now 14 year old son yesterday that I will 100% drive him to his year 10 formal in 2 years. Still a long way off but at least I now have a date to work towards! 🤣
    • Modern oils are amazing. Add tyres to that as well.
    • Probably a smart choice to buy one vs build, purely for the motivation part as you said! Imagine the metal dust everywhere from grinding all the steel to build one. Ha ha ha!   Also, post a photo of your garage.   Mine is below, this is where I've been cleaning and have already half filled a caged 6*4 trailer. And this is after my cleaning expedition mentioned previously... The middle normally has a car in it, but I'm dumping things in the middle as I sort through them. And poor skyline was dusty and has had the lightest few drops of rain and now it looks atrocious and needs to be dragged back out and washed thoroughly! And yes to the right is technically another bay, you really can only see 2 bays out of 3 in this picture.  
    • It's more like on average the things I see a lot of things going wrong. Yes, usually the people who reach out are the ones who are having problems but on average it feels like mechanics and tuners here aren't really competent. I swing between thinking my standards are just way too high and wondering whether people really are just this dumb. I just had the strangest 10+ reply argument on a Facebook group over someone insisting that the factory R34 GTT boost control solenoid reduces boost pressure to 5 psi when it's on and raises boost pressure to 7 psi when it's off despite showing the exact plumbing in the factory service manual and the solenoid behavior detailed in the FSM.
×
×
  • Create New...