Jump to content
SAU Community

Recommended Posts

All skyline turbo's are BB, Vg30 had both BB and Thrust. If you look at the center housing there will be a 10mm bolt holding the BB cartridge. Non ball bearing nissan turbos have a finned backing on the compressor cover and come standard with steel turbine wheels. Having said all that some workshops hiflow bb turbos and change them to thrust at the same time. Best way to tell is to look inside the oil outlet at the bearings.

exactly..

and, not that many places have the equipment to rebuild turbo's with BB cartridges as they don't have the balancing machine..

maybe this place does but it seems to be quiet rare.

Most common rebuilt of RB20/25 turbo's to make them T4/3, is to rip the internals out and replace with thrust bearings and T4 compressor and T3 exhaust wheel and machine the openings out as required.

So unless the rebuild of this turbo cost you in excess of $2K, I doubt that it is a BB turbo any more.

You should also quote what the shop told you about what power capabilities it has and what boost levels is it safe for.

saying that it now uses a larger siera wheel doesn't really tell us much.

Exactly, generally you pay an easy $500 more to get it BB hi flowed than bush. Bush is the cheaper way to go costing upto $1,500 for a hi-flow.

In reality terms, i havent experienced a bush hi-flow!! But it maybe good.

  • 2 weeks later...

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

    • That is surely the biggest gathering of Stageas in North America, ever!
    • Remember kids - if you can't afford to buy 2 GTRs......
    • I know people cry at the price of the Getrag 12-14k for a conversion now, but it really is a nice mid point. Not going to get change from 10k on a gearset installed.  $30k++ for sequential.   I know you run the risk of a damaged used one and parts are hard to get but as a street car gearbox its really hard to beat. If you enjoy a more traditional manual, its the choice no question.     
    • Time to decide what’s more import, your power level or your budget because you’re going to struggle to keep both 
    • Our Southern Highlands Cruise is proudly registered with “R U OK?” Day.  Sometimes the best way to check in on your mates is by getting out for a drive together. Sharing a common passion like cars creates the perfect space to chat, connect, and support each other.  A simple “R U OK?” can make all the difference. Let's enjoy the drive, the company, and look out for one another. PLEASE WEAR YELLOW FOR “R U OK?” DAY Sunday 14th September 2025 9:30AM Meeting Crossroads Homemaker Centre 10:00AM Cruise Departure Via Old Hume Hwy 11:45AM Arrival at Mittagong RSL Club Meet Location: Crossroads Homemaker Centre Final Destination: Mittagong RSL Club *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
×
×
  • Create New...