Jump to content
SAU Community

Recommended Posts

Ok this may seem like a silly question, but I blew my turbo this week, and while I wait for the replacement 2nd hand unit to arrive (thanks Odessa) I decided to pull apart the old one to see how it works (its a rainy sunday in Tas, Im bored) and I discovered that the compressor wheel looks pretty untidy, the fan blades are ground off to the right shape, leaving the edges all messy, I have seen photos of compressor wheels with sharp fan blade edges so I wondered if I could tidy it up a little with some sandpaper, so I set about cleaning up a few blades...

Turbo1.jpg

Im not really expecting any gains, but I figure if I am trying to flow 165'ish kw through this little wheel a bit of a tidy up couldnt hurt? am I gong to do it any harm by doing this to the replacement turbo? is this part of what happens when a turbo is 'high flowed'?

Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/
Share on other sites

Yeah, ok before this thread gets silly :wave: , I dont have a lot of cash -hence the standard replacement, but what I do have is patience, and if this will give the new turbo a bit easier time of it then I will do the job...

Edited by Medium Dave
Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/#findComment-2368231
Share on other sites

I was thinking that too, but it dosent seem like they have gone to any great lengths to balance it from the factory, plus im not taking all that much off, just the dags from the grinding process...

Edited by Medium Dave
Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/#findComment-2368276
Share on other sites

If you modify the compressor wheel in any way its a sure fire way to cost yourself a turbo.

Balancing is the most important part of making the turbo and the slightest imbalance will cause it to die.

If the replacement turbo has damaged or worn blades it wont last very long anyway.

Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/#findComment-2368312
Share on other sites

Yeah, it was too much shaft play, I could move it enough to touch the exhaust side but I wasnt able to make it touch the inlet, hmm it seems it was on a bit of a self distruct mission :)

So what happens when a turbo gets a 'high flow' job?

Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/#findComment-2369299
Share on other sites

Yeah, it was too much shaft play, I could move it enough to touch the exhaust side but I wasnt able to make it touch the inlet, hmm it seems it was on a bit of a self distruct mission :happy:

So what happens when a turbo gets a 'high flow' job?

a gcg hi flow which in my mind is the best (only) option due to the the fact of the use of ball bearing! new wheels which are larger about t4 size i think, shaft gets ground down a tad and new oversize bearings and cartridges. heaps bigger on the turbine side same size as the housing, everything gets machined cleaned rebuilt everything is new pretty much. im runiing one of these and found it to the best option for the cost $1650 trade price and now running 240 rwkw on 16 psi with microtech and the usual bolt on stuff :yes:

Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/#findComment-2371610
Share on other sites

yeah my gcg highflow is awesome definately a very good option for turbo upgrade ;)

but yeah a healthy turbo comp wheel wont have shavings like that on it dude they would have happened when ur turbo failed or sometime not long before it.

if u opened up the turbo i sent you it wouldnt need to be cleaned up anyway, well i hope it wouldnt ive never opened it :happy:

ur like me though, patient and will fiddle around with stuff :)

Link to comment
https://www.sau.com.au/forums/topic/128161-turbo-blow-job/#findComment-2375127
Share on other sites

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

    • For fuelling the Haltechs have O2WB fuel controllers. Very useful for helping tuning VE and correcting for *small* mistakes. Of course if your injector/cam/trigger/sensor data is just wrong (or for a GTT which is not a GT) then you will get impossible reactions to things. I am sure you know this already but the reason people don't typically put haltechs (or any Aftermarket ECU) on GT's is because there's practically no real gains to be had - So this knowledge won't be commonplace.
    • Can someone tell me if the cracks seen in the rear sway bar bushings in these photo's is unacceptable from a roadworthy point of view?  
    • Shouldn't need a "base map" for anything other than guidance to ignition tuning. You just need the engine capacity right, the injector size right, and something, almost anything, for a VE map. On an NA engine, fuelling is almost completely a function of load signal & rpm. It should run and drive with a completely flat fuel map. It will be too lean under load, but that's easily fixed. We used to tune all ECUs without any base map. There were no such things (until someone had tuned a near stock engine on one, and then they had a "base map".
    • What did you actually buy/how much did it cost? When I got mine in like.. 2017...? 2019? the aim was to run Torque for gauges via ODB2 and things like Track Addict/Laptimers/Dashcam/Reversecam/Spotify etc. Mine never broke, but I wonder if you've got the same needs (it sounds like it). Cause I liked the idea of being able to do anything with it. That said, yours also cost 3x the cost of what I spent so... food for thought.  
    • For me there is a massive difference in manufacturer or big brand crippled android (Sony, Kenwood etc) vs the sort of thing I've installed here, which is basically just a tablet in DIN form factor with open Android, and the other model of course is mirroring - Android Auto/Carplay. I hate the locked down manufacturer and AA options where they decide what apps I'm allowed to install, including the Launcher but also importantly things like Ecutek (for this car) or Real Dash (Stagea) are not supported. Plus those crippled versions tend to be slower due to both overheads and lower spec hardware. On the other hand, when this breaks I'll likely be in trouble for support....but how is that different to owning an Infiniti anyway
×
×
  • Create New...