Miata Turbo Forum - Boost cars, acquire cats.

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-   -   Is my new turbo too big? (https://www.miataturbo.net/diy-turbo-discussion-14/my-new-turbo-too-big-43171/)

Full_Tilt_Boogie 01-22-2010 04:48 PM

for 150 bucks less you can get a godspeed "gt2876"

GT2876R T28 TURBO CHARGER ( no wastegate) - $450.00 : GodSpeed Project, The Art of Performance


and it has specs, lol

psiturbo 01-22-2010 05:27 PM

Internal wastegate fail +3!

Just put a motorcycle cylinder head, put a micro Windows chip and make it rev to where it says Made in Chinatown.

Ebay chinachargers T3/T4s are still a win win situation on a 1.8 block...

triple88a 01-22-2010 06:02 PM

1 Attachment(s)
check the wheel when you unbolt it. A lot of cheap ebay turbos cut off material off the side (the flat part that rests against the back in this pic) to balance the wheels which causes them to fail quickly sometimes even at low boost. Good turbocharger manufacturers such as Garrett cut off material from the end like this pic. They can do that because their wheels are not much off balance while cheap manufacturers need to remove a lot of material to balance their wheels. Last month I read an article that explained and showed bunch of pics but i cannot find the damn link :(

Attachment 201021
On the image above the wheel strength is not compromised as in this one thats the usual ebay special that usually tends to explode under boost..

and holy crap heres an ebay turbo for you.
http://forums.pelicanparts.com/uploa...1162391879.jpg

dustinb 01-22-2010 06:07 PM

Well here's the dimensions
Compressor: 2 3/4" (I thought it was 3" when I took the pic, so could be deceiving in image)

http://www.dbmiata.com/miata/turbo/DSC00229.JPG
Turbine: 2"
http://www.dbmiata.com/miata/turbo/DSC00231.JPG
http://www.dbmiata.com/miata/turbo/DSC00230.JPG

Savington 01-22-2010 06:14 PM

Nono - get a set of calipers and take accurate measurements (within .01") of the inducer and exducer of each wheel. We can't tell you much about that turbo using tape measure measurements.

sixshooter 01-22-2010 06:16 PM


Originally Posted by dustinb (Post 511968)
Well here's the dimensions
Compressor: 3"
Turbine: 2"

You're kidding, right?

Although that is more accurate than the distributor's information.

gospeed81 01-22-2010 06:21 PM

Coool! I've been looking for a 3"/2" trim.

psiturbo 01-22-2010 06:23 PM

Burp
 

Originally Posted by triple88a (Post 511964)

http://i51.photobucket.com/albums/f3...el/Billet1.jpg
On the image above the wheel strength is not compromised as in this one thats the usual ebay special that usually tends to explode under boost..


Whatever!

Know tons of people with chinachargers running super strong back in Puerto Rico, there is a forum (but cannot find it right now) that has a complete section of only chinacharger Hondas running them, some even go to the race track. Anyway, I do not want to hijack as that is a topic for another thread.

Braineack 01-22-2010 06:23 PM

measure the inducer AND exducer dawg.

best I can judge it's a "2871" 48 trim wheel.



FWIW: I'm running a $150 ebay turbo.

triple88a 01-22-2010 06:39 PM

hey nothing wrong with ebay turbos if you are willing to take the risk.

levnubhin 01-22-2010 07:14 PM

Ebay turbo here, been running it for almost 10 months between 16 and 24 psi.
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dustinb 01-22-2010 07:46 PM


Originally Posted by Savington (Post 511971)
Nono - get a set of calipers and take accurate measurements (within .01") of the inducer and exducer of each wheel. We can't tell you much about that turbo using tape measure measurements.

lol, me = fail.

FastColt 01-22-2010 08:31 PM


Originally Posted by hustler (Post 511856)
internal wastegate fail.

double stamp

94blackmx5 01-22-2010 10:16 PM

it looks like thoose knock off gt2876r turbos on ebay. I am interested to see how well it works though. OBX is half the price of a garrett

dustinb 01-22-2010 10:34 PM


Originally Posted by FastColt (Post 512022)
double stamp

Stop hating on internal wastegate, it has feelings too.

And it won't be operational for 2-3 weeks, but once it is, I'll post full data logs.


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