Comparing genuine vs chinacharger 2871? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 07-12-2010, 04:52 PM   #21
Free Moustache Rides
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default

Quote:
Originally Posted by levnubhin
Wow, just wow. I have been over 15 psi for over a year now. Chinacharger has not complained one bit. In fact, my charger doesn't even reallly come alive until over 15 psi.
Congrats! You got one of the good ones. As I stated above, it could be that Miatas typically run less boost than DSMs, so lower shaft speeds could certainly account for some of the longevity seen around here.

I don't know anyone personally, nor does the shop I work for have any customers, who have had one last more than a few thousand miles. I stand by my previous statements that they are, on average, crap. And not just the 16g's, but that seems to be the most popular model purchased by cheap-*** DSMers, and therefore the most common one to break.

But of course, the OP can do as he pleases.
matthewdesigns is offline   Reply With Quote
Old 07-12-2010, 04:54 PM   #22
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

I mean it's shaft spinning in some journal bearings. not much is changing between 15psi and 25psi but speed/pressures.


Hell, I'd challenge you to tell me what CHRA was china and what was Garrett, if I had two brand new.



casting and casting marks are identical.


what sorta failures have been happening?

the success rate with chinachargers on this site is probably 95% if we did that same poll results would be much different, however, must of us probably have no more than 1-2 years on them.
Braineack is offline   Reply With Quote
Old 07-12-2010, 04:57 PM   #23
Junior Member
iTrader: (1)
 
Sentic's Avatar
 
Join Date: Feb 2008
Location: Sweden
Posts: 435
Total Cats: 5
Default

threadjacking somewhat.
Does anyone have the specs for the begi t25/28 that comes with the shanghai base kit?
compares to a 2854 they say, but this thread got me curious.
Sentic is offline   Reply With Quote
Old 07-12-2010, 05:24 PM   #24
Free Moustache Rides
iTrader: (8)
 
matthewdesigns's Avatar
 
Join Date: Jun 2008
Location: Colorado Springs
Posts: 1,656
Total Cats: 49
Default

Quote:
Originally Posted by Braineack View Post
I mean it's shaft spinning in some journal bearings. not much is changing between 15psi and 25psi but speed/pressures.


Hell, I'd challenge you to tell me what CHRA was china and what was Garrett, if I had two brand new.

casting and casting marks are identical.


what sorta failures have been happening?

the success rate with chinachargers on this site is probably 95% if we did that same poll results would be much different, however, must of us probably have no more than 1-2 years on them.
I'd probably fail that challenge lol.

Most of the failures we've seen/read about have been thrust bearing, followed by journal bearing, and typically they end up with both radial and thrust play and completely fail regardless of whichever bearing is initially at fault. But improper assembly of the comp wheel + shaft has sent a comp wheel literally spinning off as well...that's a real winner there. They also tend to come from the factory without any adjustment to the wg assembly, so people either get no boost, or too much boost.

I'm genuinely surprised by the success rate of members here regarding Chinese turbos. I never thought I'd see a group of people turboing their cars with these and having so much luck after all the bullshit that DSM owners go through. IDK...maybe the Mitsu center section is a bitch to replicate, and the Garrett ones are easier. Whatever the case may be, the Garrett knockoffs obviously work on cars here.

Look, the bottom line is that I'm not calling you all out for using these turbos, as many of you are running them successfully, I'm just tossing out observations/opinions based on my experience in the DSM world.
matthewdesigns is offline   Reply With Quote
Old 07-12-2010, 05:36 PM   #25
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

hug it out?
Braineack is offline   Reply With Quote
Old 07-13-2010, 04:45 PM   #26
Junior Member
iTrader: (7)
 
Join Date: Jun 2005
Location: Texas
Posts: 376
Total Cats: 16
Default

Arrrgh!

Why didn't someone tell me that the eBay Chinese turbos were junk?! What am I going to do with the one I have? Think I can sell it to someone here?
dvcn is offline   Reply With Quote
Old 07-13-2010, 04:51 PM   #27
mkturbo.com
iTrader: (24)
 
shuiend's Avatar
 
Join Date: May 2006
Location: Charleston SC
Posts: 13,775
Total Cats: 1,106
Default

Quote:
Originally Posted by dvcn View Post
Arrrgh!

Why didn't someone tell me that the eBay Chinese turbos were junk?! What am I going to do with the one I have? Think I can sell it to someone here?
You could always put it on your car and run it. I just upgraded from a real Garrett Turbo to a ChinaCharger and I am not afraid.
shuiend is offline   Reply With Quote
Old 07-13-2010, 07:41 PM   #28
Slowest Progress Ever
Thread Starter
iTrader: (26)
 
thirdgen's Avatar
 
Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
Posts: 5,806
Total Cats: 183
Default

What chinacharger is that?
thirdgen is offline   Reply With Quote
Old 07-13-2010, 08:49 PM   #29
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,854
Total Cats: 1,788
Default

the "2870"
Braineack is offline   Reply With Quote
Old 07-13-2010, 10:15 PM   #30
Slowest Progress Ever
Thread Starter
iTrader: (26)
 
thirdgen's Avatar
 
Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
Posts: 5,806
Total Cats: 183
Default

Are you serious? That turbo looks like something I'd be interested in. The point I was trying to make by establishing this thread is: it doesn't matter to me where the turbo is from as long as it works like it's supposed to and if it's advertised as "comparable to a gt2871" then the specs should be the same or at least pretty close to a gt2871. I have no problem buying a journal bearing chinacharger as long as it specs to what it's advertised as. I.E. If I'm buying a "compared to a GT2871" I don't wanna end up with a GT2859.
thirdgen is offline   Reply With Quote
Old 07-14-2010, 01:37 AM   #31
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,177
Total Cats: 2,578
Default

Quote:
Originally Posted by Braineack View Post
Like Levnubhin who has been pushing +25psi on his china 2870 for weeks and weeks?
I've been keeping a close eye on his thread. So far I'm impressed. I say if he and a few others last over a year or two at over 25psi I'll be sold completely.

For now I expect my 3076 to last a year maybe. If it goes so be it. If it lasts longer than right on
18psi is offline   Reply With Quote
Old 07-14-2010, 02:35 AM   #32
Elite Member
iTrader: (12)
 
Join Date: Apr 2008
Location: Springfield IL
Posts: 2,750
Total Cats: 24
Default

Chinachargers must have really upped their quality control standards or you guys are getting much better batches then the guys I went to UNOH with back in 05-08. I know one of the built honda guys had 2-3 fail before getting a decent one and a few 240 owners had issues also. Again, this was back 4-5 years ago, so a lot might have changed
chpmnsws6 is offline   Reply With Quote
Old 07-14-2010, 02:39 AM   #33
Elite Member
iTrader: (12)
 
Join Date: Apr 2008
Location: Springfield IL
Posts: 2,750
Total Cats: 24
Default

Quote:
Originally Posted by Braineack View Post
I mean it's shaft spinning in some journal bearings. not much is changing between 15psi and 25psi but speed/pressures.


Hell, I'd challenge you to tell me what CHRA was china and what was Garrett, if I had two brand new.



casting and casting marks are identical.


what sorta failures have been happening?

the success rate with chinachargers on this site is probably 95% if we did that same poll results would be much different, however, must of us probably have no more than 1-2 years on them.
The older one is a Garrett, while the newer one is a Chinacharger. Do I win or am I deserve a bucket of fail?

Just to make it easier for you-
chpmnsws6 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Twin Walbros, one pump louder than the other patsmx5 General Miata Chat 6 09-25-2015 02:47 PM
MS3 Basic Connection Issues EErockMiata MEGAsquirt 6 09-24-2015 10:49 AM
VE values too low? compuw22c MEGAsquirt 4 09-12-2015 08:42 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:54 PM.