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Borg Warner turbo size

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Old Jan 8, 2017 | 02:11 PM
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Default Borg Warner turbo size
Compressor Specs:
69.4mm compressor wheel inducer 82lbs/min
5'' Hose inlet
4.21'' V-Band Outlet Compressor Cover
Turbine Specs:
81.74mm turbine wheel exducer
1.58 A/R Twin Scroll T6 Turbine Housing
5.75'' Marmon Outlet

is this good for a 346 SBE LS1?
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Old Jan 8, 2017 | 05:42 PM
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What is your goal?
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Old Jan 8, 2017 | 06:51 PM
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600-700
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Old Jan 9, 2017 | 06:05 AM
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I think it would get to the 650 range on higher boost. Do you have this already? Get a 171702 borg part number if your wanting to use a t6 turbine and its 75mm compressor side and give you room to grow.
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Old Jan 9, 2017 | 06:30 AM
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171702 how efficent would this be for a smaller cube LS1? Whats the difference between a T4 and T6? physical size? I will be making the hotside so I can place the turbo anywhere.
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Old Jan 9, 2017 | 07:02 AM
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Originally Posted by 94LS1B4C
Compressor Specs:
69.4mm compressor wheel inducer 82lbs/min
5'' Hose inlet
4.21'' V-Band Outlet Compressor Cover
Turbine Specs:
81.74mm turbine wheel exducer
1.58 A/R Twin Scroll T6 Turbine Housing
5.75'' Marmon Outlet

is this good for a 346 SBE LS1?
Holy mismatched compressor/turbine, Batman!

That turbo looks like it was setup for someone who plans to make 600whp on boost and throw a 250 shot on top of it, especially if its a cast wheel.
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Old Jan 9, 2017 | 07:33 AM
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Originally Posted by JoeNova
Holy mismatched compressor/turbine, Batman!

That turbo looks like it was setup for someone who plans to make 600whp on boost and throw a 250 shot on top of it, especially if its a cast wheel.
This is why I posted haha. They call it the S470 at Jegs from Borg Warner... I'm trying to find a decent budget reliable turbo.
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Old Jan 9, 2017 | 07:35 AM
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What about:

S400SX4 Turbocharger•75mm / 2.94'' Compressor Inducer Dia.
•3.94'' Compressor Wheel O.D.
•88mm / 3.47'' Turbine Exducer Dia.
•96mm / 3.77'' Turbine Wheel O.D.
•1.32 Turbine A/R
•T6 Twin Flow Turbine Inlet
•Straight Compressor Outlet
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Old Jan 9, 2017 | 08:53 AM
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Originally Posted by 94LS1B4C
What about:

S400SX4 Turbocharger•75mm / 2.94'' Compressor Inducer Dia.
•3.94'' Compressor Wheel O.D.
•88mm / 3.47'' Turbine Exducer Dia.
•96mm / 3.77'' Turbine Wheel O.D.
•1.32 Turbine A/R
•T6 Twin Flow Turbine Inlet
•Straight Compressor Outlet
That is the standard S475 that everyone uses.
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Old Jan 9, 2017 | 09:02 AM
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box stock s475 will do what you want
less than 700 bucks through most vendors
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Old Jan 9, 2017 | 10:40 AM
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I like it! thats what I was wondering... thanks for the information!
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Old Jan 9, 2017 | 10:47 AM
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You can opt for the 83mm turbine wheel on the S475 for about the same cost (depending on vendor). The stock S475 turbine is kind of big.
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Old Jan 9, 2017 | 11:13 AM
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The specs in post #8 is the only way I can order it.
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Old Jan 9, 2017 | 11:18 AM
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Originally Posted by 94LS1B4C
The specs in post #8 is the only way I can order it.
They are plenty of other places that sell the same turbo. Try Forced Inductions.
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Old Jan 9, 2017 | 11:41 AM
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Originally Posted by svslow
They are plenty of other places that sell the same turbo. Try Forced Inductions.
I meant to say "post #8 is the only way I can order with a big discount"
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Old Jan 9, 2017 | 11:45 AM
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The 171702 borg part number is the one everyone is using and the specs listed above. They can be had for around 700 all day long. It will do anything you need for the most part. Its a little large but you said your making the hotside so no biggie.
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Old Jan 9, 2017 | 11:59 AM
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Originally Posted by 94heritage
The 171702 borg part number is the one everyone is using and the specs listed above. They can be had for around 700 all day long. It will do anything you need for the most part. Its a little large but you said your making the hotside so no biggie.
I can get this turbo discounted for $5XX new, which is why I want to use Borg Warner for my build. I just found there site confusing trying to find the correct size for a LS1.
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Old Jan 9, 2017 | 03:07 PM
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Borg Warner has a nifty online matchbox that is easy to use and has tutorial videos to go with it.

Andrew
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Old Jan 9, 2017 | 03:17 PM
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why do you need a T6, seems overkill for your goals
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Old Jan 9, 2017 | 04:57 PM
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The only T4 I could find was in the $1XXX range. Is a T6 overkill? It's 346 with 317's, BTR cam and Springs, ls6 intake, e85
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