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Discussion Starter #1
I bought a DSM T25 for a rebuild and one of the fins on the compressor as been broke off. It is just the corner and is only about .080 (measured with a micrometer). I am going to have the entire assembly balanced and it is so small I figured it would not be a problem.

Still I want some other opinions. If it will cause problems where can I get a replacement?

Thanks
 

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97 honda coupe
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Get a new compressor wheel and rebalance the assembly. If you really want to go cheap just rebalance the wheel, probibally wont really make a huge difference but you wont make the same ammount of boost, and it will come on slower.
 

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Discussion Starter #3
It is hard one to find BUT I think I found better alternative that will give me some more top end with very little sacrifice at the bottom. I found a T28 from a Nissan. It is a 50 trim with a busted turbine shaft and need of a rebuild.

The T28 is mix of a T25 turbine and a T3 compressor. I do not know if the compressor Maps are the same for the two turbos (a T3 50 trim and T28 50 trim) but I do not see why they would not.

Opinions on that???
 

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1990 civic 4 door LX
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Do it if it can be fixed. Reguardless if the maps are the same just by identifying each turbo it sounds like they will be close enough. The t25 spools easy on a small motor. My 2.2 accord dominated that turbo and made me go evo 16g finally... the t28 will be a little slower on the spool but don't worry you will have a bunch more mid-top.
 

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98 vw jetta 3
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supposedly from what i was reading soemwhere i t25 and t28 are almost identical the maps are a lil bit different but nothing i would personally worry about. and the good thing is a t25/t28 uses the same rebuild kit.
 

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Discussion Starter #6
I have been looking into the info on a T28. Basically it evolved from a T25 and it was Garrett's way of upgrading using what they had. A T28 uses the Turbine shaft (hot side) and a larger Cold side (compressor) from a T3. What happened was with the RB26DETT and SR20DET Nissan wanted more performance without sacrificing drivability. They also wanted to do it without changing the motor set-up and using what they had so Garrett basically swapped a T3 50 trim or other T3 compressor onto it. Basically it is a T3 packaged into a T25 with better spool.

So basically it should be the Garrett T3 50 trim which can make up to 300hp but I should have access to the power sooner than with a T3.

It is weird that it happened this way because I started with a T3 50 trim and decided that with my goals a T25 would be better. So I sold the T3 and bought a T25 for the spool since my goals are a modest 200 and I want it to be non lag. I however wanted the potential to make more top end and the T25 I would be limited. This works out for the best.

punkbomb138- I am also from WV. Lewisburg to be exact. Good to see someone "local" on here.
 

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why not just find a cheap used turbo that doesnt need a rebuild.?? theres tons out there.. just look around.
 

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98 vw jetta 3
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shit im about 3 hrs from u torturedsol is actually from hillsboro so he is somewhat closer but he stays in beckley now. thats basically the jist of how the t25/t28 is. i have a nissan t3 off of a 300zx mine is suposedly a .60 cold and .63 hot supposed to be a super 60 but im not really sure but mine should be good for 18 psi efficiently im hoping. and should be full spool by 5k im hoping anyway.
 
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