Unsure if I should keep 2560 or go to a 2871 - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 06-07-2011, 02:44 PM   #21
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I'm just barely learning GT part numbers.


Whats an equiv. borg part number to a Garret 2560 or larger 2860/71 R/RS ?
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Old 06-07-2011, 02:46 PM   #22
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Quote:
Originally Posted by jtothawhat View Post
^^^^ What Min said, people need to get off the Garrett high horse and see what other cars are running with great success. Precisions, Borgwarners both ring a bell...
Precision uses Garrett BB CHRAs. High failiure rate for precisions too beacuse of this.


Quote:
Originally Posted by Landrew View Post
I'm just barely learning GT part numbers.


Whats an equiv. borg part number to a Garret 2560 or larger 2860/71 R/RS ?
Look at the compressor and turbine wheel measurements to compare. Also look at the turbine housing size.

Here's Borg's 2011 catalog.
http://www.turbodriven.com/files/pdf...alog_SMALL.pdf

To convert inches to mm use google e.g., 3 inches in mm
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Old 06-07-2011, 02:49 PM   #23
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I must be doing something wrong. My Garrett 2876R has about 60,000 miles on it.
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Old 06-07-2011, 02:59 PM   #24
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Quote:
Originally Posted by y8s View Post
I must be doing something wrong. My Garrett 2876R has about 60,000 miles on it.


Blown Garretts.
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Old 06-07-2011, 03:04 PM   #25
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Quote:
Originally Posted by Faeflora View Post
my garrett only blows boost into the motor.

it still spins for a long time after shutting off the car.

so...

blow y8s?
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Old 06-07-2011, 03:19 PM   #26
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Lets be real, ALL turbos fail at some point, its the nature of the beast, esp in high HP applications. THe GT2560 is an OEM turbo and has seen plenty of cars that push past 60k
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Old 06-07-2011, 03:27 PM   #27
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Quote:
Originally Posted by Faeflora View Post

I bought a Borg Warner. Better because rebuilding doesn't cost $500. It costs $100.
UHH... is your BW ball-bearing? I've rebuilt Garrett's for about $80, but they were journal bearing. Unless you know something I don't...

It's not apples to apples. Kinda like: "I can buy a miata for $2000! Why the **** would I drop 200K on a Ferrari?!"
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Old 06-07-2011, 03:51 PM   #28
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Quote:
Originally Posted by trakhoar View Post
Lets be real, ALL turbos fail at some point, its the nature of the beast, esp in high HP applications. THe GT2560 is an OEM turbo and has seen plenty of cars that push past 60k
Yeah and the aftermarket garrett bbsfail a **** ton. Read the damn link I posted.

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Originally Posted by tasty danish View Post
UHH... is your BW ball-bearing? I've rebuilt Garrett's for about $80, but they were journal bearing. Unless you know something I don't...

It's not apples to apples. Kinda like: "I can buy a miata for $2000! Why the **** would I drop 200K on a Ferrari?!"
No my BW is journal and my garrett is BB. Yes, journal garretts can be rebuilt for cheap.


Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts
Blown Garretts

Also look on ebay and again, blown garrett BB turbos FS are common there.
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Old 06-07-2011, 03:54 PM   #29
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0 results found for blown garrett, Used
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Old 06-07-2011, 03:56 PM   #30
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wonder how many blow from user fail
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Old 06-07-2011, 04:01 PM   #31
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Back to the core.

Has anyone regretted going to a 2871 or similar and or can let me know what they like / dislike about their large Garrett?

Maps are great but I also like first hand reviews.
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Old 06-07-2011, 04:07 PM   #32
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I am also jumping the Garrett ship.

I'm not okay with depending on garrett GT turbos to work with my current hotside. The price/performance arrangement is not worth it at all, not even close. T3 is much more liberating, Hoslet, Borg Warner and other diesel turbos from now on for me.

Garrett is not even close to being at the top of the turbo food chain anymore.

EDIT: back on topic. Savington loves his 2871. Lots of people are fine using larger garrett GT turbos. But it doesn't hurt to look at what else is out there on the market.

Some of the cars I've driven/ridin'/owned have used a wide range of Garrett turbos. I've driven cars with the T25G, GT2554, GTiR 2560, GT2560, Disco 'tater and a 2871 .64 car. The difference between the 'tater and 2871 was nominal. Then again, not all setups where equal. The GT2560 had torque like a mother ******. Down low my 2554 is nice @14-15psi, but it's not what I'm looking for anymore and the price to jump to a 2871 is what scares me away. I can build a entire new hotside and have a plethora of cheap, sturdy, power house turbos for right around the same price as a new GT2871.

EDIT (2): Is there a chance you can get a ride in a car that is setup similarly to what you want or perhaps a gt2871 car? That is what helped me the most in deciding what I wanted.

Good luck.

Last edited by viperormiata; 06-07-2011 at 04:21 PM.
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Old 06-07-2011, 04:44 PM   #33
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If you're planning to use your VVT, then the 2871 is probably the smallest turbo you'd ever want. I'm using a 2876 and I have no complaints about lag based on where I find myself in the power band. If I'm above 3k, it pulls nicely until it pulls like mad.
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Old 06-07-2011, 04:49 PM   #34
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Cool so the market leader in aftermarket turbos has history of failures. If I googled blown borg warner turbos, would the percentage of hits be in direct proportion to the market share they own in the same application?
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Old 06-07-2011, 04:52 PM   #35
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Quote:
Originally Posted by y8s View Post
If you're planning to use your VVT, then the 2871 is probably the smallest turbo you'd ever want. I'm using a 2876 and I have no complaints about lag based on where I find myself in the power band. If I'm above 3k, it pulls nicely until it pulls like mad.
The 2nd week after I bought Rev's MS I bought the VVT box. (my turbo was failing at the same time I went to MS so I thought the VVT was why I was down on power)

So yes VVT is running and will be utilized.

I trust your judgement - tell me about these specs on a 2871:

Comp.
Ind Exd Trim A/R
53.1mm 71.0mm 56 0.60

Turbine
Wh Dia Trim A/R
53.9mm 76 0.64

Will I be satisfied with the spool running that to 12psi until I go built next spring?
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Old 06-07-2011, 04:55 PM   #36
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Quote:
Originally Posted by Braineack View Post
Cool so the market leader in aftermarket turbos has history of failures. If I googled blown borg warner turbos, would the percentage of hits be in direct proportion to the market share they own in the same application?
I had the same correlation done with tranny failures of a common minivan.

More units sold mean more volume of failures even at a lower failure rate than a tranny with a higher faulure rate on a minivan that sold way less units.


Statistics can prove anything, 10% of all people know that.......

(Simpsons)
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Old 06-07-2011, 05:40 PM   #37
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Quote:
Originally Posted by Braineack View Post
Cool so the market leader in aftermarket turbos has history of failures. If I googled blown borg warner turbos, would the percentage of hits be in direct proportion to the market share they own in the same application?
Quote:
Originally Posted by Landrew View Post
I had the same correlation done with tranny failures of a common minivan.

More units sold mean more volume of failures even at a lower failure rate than a tranny with a higher faulure rate on a minivan that sold way less units.


Statistics can prove anything, 10% of all people know that.......

(Simpsons)
You two can take your logic and leave. This is an emotional non-fact based argument.
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Old 06-07-2011, 05:54 PM   #38
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Quote:
Originally Posted by Landrew View Post
The 2nd week after I bought Rev's MS I bought the VVT box. (my turbo was failing at the same time I went to MS so I thought the VVT was why I was down on power)

So yes VVT is running and will be utilized.

I trust your judgement - tell me about these specs on a 2871:

Comp.
Ind Exd Trim A/R
53.1mm 71.0mm 56 0.60

Turbine
Wh Dia Trim A/R
53.9mm 76 0.64

Will I be satisfied with the spool running that to 12psi until I go built next spring?
maybe not quite 12 psi... but it's basically one step down from my turbo so you probably gain the spool I miss out on. I bet you'll be happy.

there will be posts following this telling you to get the .86 A/R housing I'm sure. you may also want to consider skipping the internal wastegate and going straight to an external wastegate.
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Old 06-07-2011, 05:59 PM   #39
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My Garrett turbo is 2-years old and has roughly 30-hours of track time on it. I'll buy another.
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Old 06-07-2011, 06:11 PM   #40
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Ok whatever guys keep smoking the garrett long wong.

No **** more units in existence equals more failures. The total overall failure rate is still very high though.

Did you really not even notice in this very thread that two garrett customers in our small community have had BB failures? That is a high percentage of failure, period.

If you want to stick your head in the sand go ahead.
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