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It depends on how often and how hard the car's been driven and how much boost they run.

Those products was not developed through R&D and perfected through time, instead a copy of a matured product. just like their response to a better performing HTA item was "send one in and we make a copy." In which they are missing the foundation, that is the information of engine and turbo behavior at given condition and situations, of any turbochargers should be developed on. Just like some of their huge 700HP Precision copy compressor with TD06L2 turbines, then anti surge that compressor. Well that is just very wrong.

The most commonly seen turbochargers sent in for repair are the T67, and new billet wheeled T67 in 8 / 10cm on Rb25dets. Very few 8cm T67 in SR, and 1x TD05 16G from SR. All same problem as photo graphed earlier.

The common denominator seems to be turbo:engine match, and also compressor:turbine match.

Stao you indicated that your 360 degree thrust bearing cures the issues, but is the T67 10cm unit on RB25 in your view just a mismatch of the above factors?

The photo shown earlier is Kando's 360 degree thrust bearing setup which is again an identical copy of Greddy's large shoulder thrust collar.

The collar and bearing that I make for the L2 turbine ended is larger overall and different. By enlarging collar and improving oil delivery within can only do so far, The best solution is having matched flow between both turbo ends. A good example would be the SLSS2 turbocharger, yet running a 73mm compressor maxed out more power then the 78mm 25G, with much better response and reliability.

Ok, so I'm about to purchase a T67 from kando and have seen these comments saying there failure rate has gone up.

Can someone recommend an option I could take if I purchase one of these, such as sending it too hypergear for Stao to fix up or should I find an alternative turbo?

I really want to run one of these t67's so hopefully I can take preventative measures to stop it from failing.

Cheers guys

Ok, so I'm about to purchase a T67 from kando and have seen these comments saying there failure rate has gone up.

Can someone recommend an option I could take if I purchase one of these, such as sending it too hypergear for Stao to fix up or should I find an alternative turbo?

I really want to run one of these t67's so hopefully I can take preventative measures to stop it from failing.

Cheers guys

For the same power range I recommend our ATR43 SS2 The externally gated version is $150 more then what the T67 is, Extremely reliable with 0 failure up to date and faster response.

Or buy their new massive billet T67 , I can upgrade the rear end and make it flow about 430rwkws mark reliably.

  • Like 1
  • 2 weeks later...

So had a heated discussion with kando and they sent me a brand new turbo no extra charge which is fantastic and have stated a fresh warranty

So if anyone wants a t67 non antisurge billet 10cm rear v band made 377rwkw on unopened rb25 on e85 I'm selling selling this brand new one

I get to work on them often, the shaft and bearing below came off a Kando T67 sent in last week, like I've mentioned earlier. This issue happens to T67 or those larger billet L2 based cores working with Rb25det engines on high boost. When compressor out flows turbine creating way too much back pressure.

bearings.JPG

any chance this could just be caused by incorrect oil choices ?

If it is oil related, the bush bearing would be worn before the thrust. The bushes are fine, there are no bearing take off on the shaft. This is caused by back pressure.

The 25G's wheel size is about same size as the SS4 wheel that made 435rwkws, This compressor end should have no issues making 400rwkws+ on a larger turbine.

I have another T67 sending in to be looked at next week, will post some more photos. if the customer's happy to pay for repair, I will replace the TD06L2 turbine with a SS4 turbine wheel. That will be good enough to sort out this back pressure issue and make the most of what the 25G compressor is capable of making.

ahh ok I see....I was just curious after reading a thing on low grade oils damaging thrust bearings on high HP applications..

My old turbo has ended up on an Rb20 drifter anyway...hopefully it holds up good for him and back pressure isn't an issue

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