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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

If you were going to build an NC turbo...

Old Sep 10, 2008 | 12:12 AM
  #21  
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How much was wrong with her to get it for 8K....it's not a PRHT is it?
Old Sep 10, 2008 | 12:29 AM
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No prht. Front damage, nothing major. 1.5 k in parts, couple hours in the paint booth for rent and we have lift off. Ebay is awesome for parts, even really new ****. I'll take a brand new miata for under 12k paid for any day.
Well you have to be able to do the work yourself, or at least alot of it. Still though out the door a new one is 24-27.
Old Sep 10, 2008 | 12:34 AM
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Originally Posted by talusfan
No prht. Front damage, nothing major. 1.5 k in parts, couple hours in the paint booth for rent and we have lift off. Ebay is awesome for parts, even really new ****. I'll take a brand new miata for under 12k paid for any day.
Well you have to be able to do the work yourself, or at least alot of it. Still though out the door a new one is 24-27.
Sounds good. Will be almost free after selling off the NA and the parts.

Working on boxing your stuff up as we speak by the way.
Old Sep 10, 2008 | 12:42 AM
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Shooting for a bit more than free.
Old Sep 10, 2008 | 08:16 AM
  #25  
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Originally Posted by talusfan
At 9k for an 08 with 2k miles, I can live with the tail lights even if they are kind of pimpish.
Ahh, I saw that car. Good score. You're not putting the airbags back in I presume...
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Old Sep 10, 2008 | 09:40 AM
  #26  
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I am, I used to work for Mazda so I have alot of hook-ups on things. A little work for one of my parts guys and i got a free bags. I had to buy the controller though.
I usually just flip them but this one I kind of like. I could have lived with out the manumatic though. I figure i'll keep it til they give it a facelift in 2010.
Old Sep 10, 2008 | 10:47 AM
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How well do you think the automatic will handle the additional power?
Old Sep 10, 2008 | 03:39 PM
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Well the thing is, once you get it fixed as long as the title isn't salvage, you could trade/sell it and get a manual one. The manumatic ones are more expensive iirc anyways.

Or get an rx8.

Old Sep 10, 2008 | 04:52 PM
  #29  
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Originally Posted by talusfan
Good idea, I Should have thought of that already. I'll be picking one up this week.

What other options, do you guys recommend for a turbo? Making power early is more preferable to me over max top end, If that makes any sense.


Well I did some rough calculations, and at around 240 hp (sorta random guess) with the turbo, you would be looking for a pressure ratio of around 2.2 with 28 ish lb/min of flow.


A compressor map from a gt2871R seems to fit perfect

Hope that helps


Old Sep 11, 2008 | 12:56 AM
  #30  
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Originally Posted by Saml01
How well do you think the automatic will handle the additional power?
No clue. I'll throw a mini broom and dustpan in the trunk though just in case.

Originally Posted by Fireindc
Well the thing is, once you get it fixed as long as the title isn't salvage, you could trade/sell it and get a manual one. The manumatic ones are more expensive iirc anyways.

Or get an rx8.

I'll wait til 10 when they give it a facelift.

Originally Posted by cardriverx
Well I did some rough calculations, and at around 240 hp (sorta random guess) with the turbo, you would be looking for a pressure ratio of around 2.2 with 28 ish lb/min of flow.


A compressor map from a gt2871R seems to fit perfect

Hope that helps



Helps tremendously as soon as I translate it to noob english lol.
What flange is gt2871R?
Old Sep 11, 2008 | 01:42 AM
  #31  
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Originally Posted by talusfan
Educate me, What is the difference between 2860RS - 2871 - GT2560
The size of the housings and wheels.

These pages are your friend:
http://www.turbobygarrett.com/turbob...gt_basics.html
http://www.turbobygarrett.com/turbob...ochargers.html

The "R" suffix denotes a ball-bearing center. The "S" is a semi-meaningless differentiator between sub-models of the same turbo.
Old Sep 11, 2008 | 10:37 AM
  #32  
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Originally Posted by talusfan


Helps tremendously as soon as I translate it to noob english lol.
What flange is gt2871R?
Look at the links joe gave you, it explains the equations and how it works.



http://www.atpturbo.com/Merchant2/me...egory_Code=GRT



The turbo can have a T25 or T3 flange... I would get a .63 a/r on the exhaust side.



If your planning on like upwards of 350 hp, you might want to consider a gt30... What are you aiming for anyway? How well built is the NC engine?
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