Jump to content
SAU Community

Recommended Posts

Chinese manufacturing is all about quality control. If you have the parent company standing over the manufacturing plant watching every move and making sure the job is done right, it's fine. If there is no control then you get a shit product, but you get it cheap.

From my dealings, I'd go as far to say they do EXACTLY as asked with regards ro manufacturing, you just have to ask the right questions and make it VERY clear.

A long time ago I asked that I had a certain component used during manufacture (as it was a higher quality), thanks to a language barrier they took it to mean I wanted the documentation to state the part was used (when it really wasn't)

Once I had explained that they HAD to use the part for the item to be reliable they were more than happy to continue down this path and have never deviated from this course. But as shown they are more than content to keep the customer happy, even if they think they're mislabelling etc etc to get a sale. This is where less than honest suppliers will utilise their lenience and get dodgy things made cheaply.

"Just following orders"

Not having a go, just while we are sorta on the topic, I thought turbos spin at like ~80,000-150,000? or am I way off?

I think you're right. I was thinking a lot about vortex tubes at the time and the number 1,000,000 rpm was in my mind.

Then there's the DUAL Supercharger Turbo Air Intake Fuel Saver Fan which maybe spins even faster.

</off topic>

  • 11 months later...

I had an ebay turbo once, the dreadful 50 70 KKR Rip off (I was so so poor back in the day lol and shamefully it was on an R34). It was only Oil Cooled. You would turn the blade and it wouldn't continuely spin like a GTX3076R. You could tell the build quality wasn't the best. The only thing I did to it was put an orginal GT30 Wastegate on.

Funny enough the car wasn't terrible, I was able to "overtake" v8's, evos and rexs. 3500rpm at 12psi (LOL). Car was dyno'd at 230rwkw (Injectors Maxed Out). I used it for 20000km and took it off because I got cashed up. Turbo is still in tip top condition. But you get exactly what you pay for. I payed for old technology and I got sub-par performance. Compared to a GTX3076R their are huge differences.

For Street use yes it is ok since you'll only ever run for less then a minute. But for track unless you have a couple sitting around and are ready to replace. I wouldn't use them again.

Not having a go, just while we are sorta on the topic, I thought turbos spin at like ~80,000-150,000? or am I way off?

when i was an apprentice the laptop program we used on the big Detroit Diesel dump trucks displayed figures with gauges like a dashboard. none of our trucks had the optional turbo speed sensors but the gauge only went to 30,000 or 35,000 from memory. i always wanted to order one and check it out.

This China talk is so interesting. Although there is some rubbish on ebay, there is also some quality available too. Just because its on ebay doesnt mean it is junk AND just because it doesn't have a big name brand stamped on it doesn't make it junk either.

This reminds of a mate many years ago (maybe 20 or so) who worked for a brake pad manufacturing plant in Melbourne. I owned at the time a Toyota Hi Ace and complained about why new front pads at Toyota boxed pads were $100, Bendix $65 and no name wrapped from local parts store were only $35. He axplained: He would tell me how along each conyer belt would be 3 or 4 different packaging stations. Some would go into Toyota (for eg) boxes, some into Bendix boxes and some just into plain boxes or Repco boxes. Same pads. Different box = higher price.

My point is, we make assumptions based who has (or can afford to create) a higher profile for a brand name without really knowing if the quality is the same, better or worse. Just take my boost controllers for example when I google turbotech boost controllers and do soem reading I am amazed at how many people say they have ditched other manual controllers from brand name companies to use mine. Yet, they have a higher profile, expensive websites, in autobarn catalogues etc and can afford to make sure that their webites are on front page of google searches! I manufacturer by hand myself, where do you think all those shiny ones come from??

China, Taiwan, Indonesia??

About China, they are renowned for manufacturing big brand name components (turbos included)then making huge amounts on the side to flood the market and show up on ebay. Are the knockoffs the same quality? Probably, why would they change it? I know an engineer that was manufacturing brake kits for older Holdens. He now has them made in China at the same quality but delivered back to him made in China for less than he can purchase the materials in Australia!!

Sure China probably produces some crap (or even heaps of it), but so does Australia or any other country! But just because it is half or one third the price doesn't always mean it is junk..it might just be teh same unit :thumbsup:

I can't believe I just tyoped all that..haha

Alot of people make the mistake when they contact a Chinese manufacturer by "negotiating" with the price.

For example, the Chinese say yep we can make what you want, it's gonna going to cost $50 each, for example. So called business man says no, I want to pay $35.

The Chinese agree to the lower price almost everytime but the quality is halved. And they won't tell you this !

When we deal with them for work, we get a quote for each piece to be made, we tell them we will give you 10% more per piece but it has to be exactly the way we want it. Never have any problems with them, and the quality of their work is outstanding.

You bargain with them = you get crap, be reasonable and pay abit more = you actualy get decent quality.

I have never had a problem with 'cheap' cam gears, even though there 1/3 the price on the bramd names.

I think with items that are complex and require quality parts like a turbo you shouldnt really gamble.

Im sure the kando dynamics turbos are good but the kkr and other runbish i wouldnt put on my car even ir it were for free.

Yea Ive seen some poorly made ones out there. I have even had some cheaper cam gears color fade from red to poo fade red in less then a month. I think its more trial and error, even the HKS 3 spoke ones were renowned for slipping.

I'm fitting my new cam gears this weekend, i'll see how they go. I have had these before and had no problems.

If i had a rb26 or a rb25 then i prob wouldnt risk it but 20's are so cheap im not to fussed if the motor let go , gives me an excuse to go 2.2 stroker or 25 :cheers:

A mate bought a "3076R equivelent" turbo off Ebay, the front is exactly the same size as another mates 3076R, but the back is smaller than my 2860-7s... fitted it to his RX7, after blowing the standard one, he went DOWN 50kw+, compared to the (smaller) 20 year old turbo that had been on there... Yes there is some good gear comes out of there, but in China they joke about stuff that is "MIC"- Made In China, and use it as a reason that something is poor quality...

I can't afford to use a cheapie..........I drive big trips in the country and do not want to be stuck 10 miles from bumf**k at 2 o'clock in the morning. I don't dispute that a chinese turbo will give the same or similar performance, I paid [or hope I did] for the dependability that a company like Garrett base their business on. I have to say so far, so good.

i dont think china itself has a global quality control issue

i think its more a fact that there is some crap stuff coming out which is "referenced" as china cheap

so everyone blames china

i reckon the HKS factory is probably in china and it is very strict

afterall china is a global manufacturing region and everything comes from there

tvs, computers, cars, ovens, watches, stereos, engines and not just turbochargers

there are some clear and obvious baddies to be aware of

and these probably reflect bad people in china who copy stuff, not china itself

its like the cisco counterfeit hardware

in shincanzen (spelling) there a factories that spit out cisco 12k and GSR/CRS line cards which are rip off but cisco cant pick the difference and pass it as legit, even though its not. so its not the countries fault, but specific areas.

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

    • A locally delivered Infiniti have remote start installed but don't come with the remote start key. You need a new remote start key and they just need it programed. And this is different to making/programing a new key that just starts the car.  
    • Cheers, and cheers for sharing so much of the build and also sharing the glimpse of what turns out to bring a lot of us poor decision makers together haha.  I do recommend learning more about how to manage it, if not considering getting a  formal diagnosis.  The discussion with the psychiatrist I got my diagnosis through was quite eye opening, things I'd not even considered to be ADHD related and hadn't mentioned were things she asked about out of the blue and were common themes with people with my flavour of ADHD.   It's not a label for people who are hyperactive and ill-attentive, there's more to it than that and some of it can be much more challenging or damaging - though there are of course two sides to the thing, and a lot of the stuff we have to go through and work on to live with it make us effectively "better" at other things as well. Aside from the fact that there is some argument I could have a bit of ASD seasoning in there (came up during the diagnosis, and neurodiverse things seem to not stay as a cookie cut) I suspect you need to learn more about ADHD if you are puzzled about how hyperfocus could possibly apply.  I *do* personally use "superpower" with quotes deliberately, but it's 100% an ADHD thing due to the exact reason that lack of focus is also an ADHD thing... Loosely speaking the inattentive side of ADHD isn't the inability to focus, it's the inability to control where the focus goes.  Not being able to sleep because brain is more interested in thinking about a stupid thing I said to a girl I liked 30 years ago, not being able to focus on work because my brain is more keen on putting together the torque management strategy we're going to try out with a drag car next weekend, not being able to focus on a conversation with someone I WANT to listen to and respect because there is a flickering light in my peripheral vision.    If I could just stop work and build the torque management setup right there and then I'd not hear anything else until it was done.  
    • Maybe you should do some more reading.  Google positive effects of ADHD and you'll get your answers.  One of my personal downsides of ADHD has been talking before I think.   Maybe you have it too?
    • Excuse me for butting in....but which part of ADHD can be considered a superpower? I would have though it far more likely that some ASD comorbidity is more likely to be contributing to an ability to hyperfocus on something. ADHD being aimed somewhat in the other direction. My shed looks like your shed. My whiteboard list of unfinished projects has entries going back 15 years. I know what you're talking about - I just struggle to connect ADHD to the results being discussed.
    • Thanks for reaching out!  It's a blessing and a curse at the same time.  I'm undiagnosed but it doesn't take a rocket scientist to see it in me... I have more half started projects laying around my house, shed, garden, etc taking up space and money, destroying aesthetics than if I added up all of my mates projects together. But, ADHD gives me the ability to hyper focus on things that no mere mortal could even  comprehend.  A recent pool build is an example of that....  I dont know anyone else that would be dumb enough and focused enough to take on then complete something of that magnitude. I call ADHD a superpower but it can equally be completely destructive if not controlled and focusedon the right places. Addiction is a major concern to ADHD people and thankfully my addictions have been no worse than projects, XBOX, chocolate and being an arsehole! It's often hereditary and my 13 year old son is currently learning how to drive it at the moment. Keep lurking! If i can finally finish this bloody thing at some point it will be a win for all of us ADHD'ers! 🤪
×
×
  • Create New...