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Smaller turbo



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Old 09-21-2006, 04:14 PM   #1
 
Join Date: Nov 2005
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hoohaa will become famous soon enough
Smaller turbo

Looking for something like a T3 or T3/04 or maybe even a T3/60. Anything around that size I would consider. I am planning to solve my power problems.
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Old 09-21-2006, 09:21 PM   #2
Rock Monkey
 
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I have a few garrett t3 turbos laying about, what size and type are you looking for? I have some from the dodges, turbocoupes up through the early Buick t3 stuff.

Stevo
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Old 09-22-2006, 02:09 PM   #3
 
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I have a 3.0 liter V6 in a Nissan pathfinder and I'm trying to find a turbo small enough to give me lots of low end boost, even at the expense of running out of breath at the top end.

What are the turbos out of (engine displacement, etc.) and what are the models and trims? I have a feeling I will be experimenting before I find something that works very well.

Thanks
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Old 09-22-2006, 02:11 PM   #4
 
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I can't remember what the buick turbo is exactly, but if it's similar in size to the super common volvo T3s I might be able to use it. I would prefer a turbo a little larger than the volvo T3s, so perhaps that would work out.
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Old 09-22-2006, 03:19 PM   #5
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I have compressor a/r's from .42 up to .63, and turbines from .48 to .82. The buick stuff is simular to the turbocoupe t3 with a different exhaust side. For you three liter, I'd look for a turbo from an 80's 280zx, they are a t3 that is basically between a turbocoupe t3 (.60/.63 a/r) and the buick grand national turbos. They would spool quicker than the 300zx single t3 I believe. To be honest, my turbos are all probably too small or way too big for a 3.0 liter engine, well except one, and it is going on my 3.8L engine. They are mostly pulled from engines about 2.2L-2.3L (dodge and ford turbocoupe) and buick 3.8L stuff.

Stevo
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Old 09-22-2006, 04:03 PM   #6
 
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hmm. Yeah, the 2.2 liter turbos might be smallish. I wonder if I could make it work though. I am basically at a point where I need low end boost, but I can't afford the time and money to build and design a supercharger right now. I need boost starting at hopefully below or around 2000 rpm to allow my engine to cruise in overdrive on the highway to trails. I'm not looking for anything that will provide boost at 5000 rpm.

Are any of those 3.8L turbos from a twin setup?
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Old 09-22-2006, 04:23 PM   #7
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You should try to find a .63 exhaust T3, and use a .60 compressor, have the compressor machined for a Grand National compressor wheel (basically making it a super 60 T3 I believe). The turbine will allow it to spool quick with your displacement, and the compressor will allow the CFM you need to make power. Majestic Turbos in the DFW area is who i would recommend if you go that route. I'll check and see if I have a whole .60/.63 t3, but i believe I sold my last whole one a while back.

Stevo
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Old 09-22-2006, 05:17 PM   #8
 
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Tell you what, I think I might want to try a T3 with a .48 compressor housing and a .42 turbine. You have anything like that? I am pretty sure that would be small enough to start spooling WAY early in the powerband, like at 1700 rpm or so.
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Old 09-22-2006, 08:08 PM   #9
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Closest I have would be a .42 compressor and .48 turbine Dodge turbo, but the turbine housing is badly cracked. Now, you do know the size you are refering to was actually restrictive on the 2.2L engine from the factory, right?

Spool RPM is generally a function of the turbine size and a/r ratio, the compressor size/ratio doesn't have a great impact on it (unless you get a much too large compressor wheel, the extra weight will slow spool time).

Generally, you select the compressor depending on your power needs, and select your turbine depending on what RPM you would like full boost.

Stevo
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Old 09-22-2006, 10:39 PM   #10
 
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Well badly cracked doesn't sound promising. I do like the sounds of "restrictive... from the factory" though. That sounds like what I'm looking for. A turbo that will act more like a supercharger.
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Old 09-23-2006, 08:02 PM   #11
 
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kawijames just gettin started
turbos?

hey i got two from a 97 3000gt VR4 in my garage. intertnally watgeated( need wastegates) one has a stud broken on it(needs to be removed) both need a cleanup and have the passages for water and oil cooling. let me know


Take it easy,
James
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Old 09-23-2006, 09:27 PM   #12
 
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pming ya.
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Old 09-30-2006, 05:20 PM   #13
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truckin97 Spottertruckin97 Spotter
i have a garret t04e cmplete and t3 housing if you got the guts.....let me know
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Old 10-17-2006, 11:38 PM   #14
 
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I was going to use MegaSquirt, but I got banned from their forums, and the owners just said, "yeah, we're standing behind the banning" when I emailed them asking about it. So I will not be using MS, unfortunately. I was really looking forward to it.

I'm going to let the Nissan ECU control fuel via the MAF. I will be good up to 10 psi or so.
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Old 10-29-2006, 09:35 PM   #15
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lopez4x4 Village Idiotlopez4x4 Village Idiot
if still looking for turbo got a almost brand new t4/t4 turbonetics hybrid asking $350 greaT DEAL
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