2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Garrett GT28

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Old Sep 23, 2003 | 02:12 AM
  #1  
Rx7 922's Avatar
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From: San Jose, Ca
Garrett GT28

u guys think that this turbo would fit and/or would i have to do some major upgrades to the engine so it wont blow??


thanks
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Old Sep 23, 2003 | 02:40 AM
  #2  
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From: OR
You are going to need to do major upgrades to the engine such as :

Eh.......

1. get a new e shaft( made for a 1 rotor)
2. grind the teeth off of the rear stationary gear
3. Cut a weber in half (along with the manifold)
4. make a custom oil pan
5. drop the voltage down on the fuel pump to six volts
6. install a smaller feed and return lines
7. Go buy a churro machine(to fill the excess engine bay space)
8. take the radiator of your dirtbike(might be a little overkill though)
9. Get a really heavy flywheel(40 pounds or so should do it)
10. Buy mini cooper brakes for the rear to match the 9 inch rims(to help out the gear ratio problem)


And there you have it 10 ridiculous solutions to a ridiculous question.
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Old Sep 23, 2003 | 04:05 AM
  #3  
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Turbo is too small.


-Ted
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Old Sep 23, 2003 | 04:15 AM
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From: Hood River oregon
Funny....
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Old Sep 23, 2003 | 05:54 AM
  #5  
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From: Metro Detroit
Small turbo
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Old Sep 23, 2003 | 08:10 AM
  #6  
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Hmm.. but as a PAIR they are very good!
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Old Dec 3, 2003 | 08:17 PM
  #7  
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From: Ontario, CA
Why is this turbo too small? The sports compact silvia uses it and it makes about 270rwhp, makes alot of power down low, and that car can run a 12.8 on street tires. Is it just not a good match for our cars? I'm shooting for around 280 hp and wanted to know more about this turbo. I dont need the 400hp that the T04 puts out.
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Old Dec 3, 2003 | 08:56 PM
  #8  
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you can get 280 hp off the stock turbo.. if you want more of a punch get a T3/04 almost same spooling of stock turbo and a bit bigger.. get a fuel pump and some injectors so you dont blow it up.. since your asking about getitng a new turbo i would assume youve modded the T2 already? and you know what to do.. if nto try that first before u go worrying about a bigger turbo
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Old Dec 3, 2003 | 11:32 PM
  #9  
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gt28s are for two liter and smaller four cylinder motors, not for 8000rpm rotaries

although yes if you use two, they work out good (although two gt30rs would be better i think)
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Old Dec 4, 2003 | 12:11 AM
  #10  
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1.3 liter rotaries push more air than 2.0 liter engine like the silvia's. They also need to run the turbo at a lower boost to make power safely. For both these reasons, the gt28 is way too small.

Steve
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Old Dec 4, 2003 | 01:36 AM
  #11  
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From: salt lake ut
i have a gt17 ill sell ya, maybe you can run the 17 and 28 together.
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Old Dec 4, 2003 | 02:28 AM
  #12  
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I will be running twin GT30R's on the new motor
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