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01-25-2017, 10:51 AM
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#1
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Name: Tobin
Title: 5.7 IDI Powaa!
Status: Not Here
Join Date: Oct 2008
Location: Oviedo, FL
Member`s Gallery
Posts: 1,505
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Compound Sizing - s363 / S475 Advice
I have been looking at charts, formulas, pressure ratios, etc. until my eyes are shot and this is kinda of what I came up for my setup. 12v, 650hp, 4k RPM, automatic. Something that is very streetable, tows ok and makes good power. Any comments? I am probably way off on sizing these.
s363 Specs
s475 Specs
__________________
2006 Dodge 2500 QCLB 4x4 Goerend 48RE
1977 F250 RCLB 4x4 "High Boy" 12 valve, 180 pump, 5x.014, S363/S475, Goerend 47RH, NP271, 2007 D60/Sterling 10.5, 40" Toyo MTs
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01-26-2017, 09:06 AM
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#2
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Name: Tobin
Title: 5.7 IDI Powaa!
Status: Not Here
Join Date: Oct 2008
Location: Oviedo, FL
Member`s Gallery
Posts: 1,505
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Any comments? Am I waaay off here?
__________________
2006 Dodge 2500 QCLB 4x4 Goerend 48RE
1977 F250 RCLB 4x4 "High Boy" 12 valve, 180 pump, 5x.014, S363/S475, Goerend 47RH, NP271, 2007 D60/Sterling 10.5, 40" Toyo MTs
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01-26-2017, 01:23 PM
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#3
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Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
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Do you want power to be made at 4k?
__________________
Jacob, 97 rclb
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01-26-2017, 07:46 PM
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#4
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Name: Tobin
Title: 5.7 IDI Powaa!
Status: Not Here
Join Date: Oct 2008
Location: Oviedo, FL
Member`s Gallery
Posts: 1,505
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Quote:
Originally Posted by jlbayes
Do you want power to be made at 4k?
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I don't know what you are getting at? I do want to put a tighter turbine housing on the small turbo.
__________________
2006 Dodge 2500 QCLB 4x4 Goerend 48RE
1977 F250 RCLB 4x4 "High Boy" 12 valve, 180 pump, 5x.014, S363/S475, Goerend 47RH, NP271, 2007 D60/Sterling 10.5, 40" Toyo MTs
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01-26-2017, 08:32 PM
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#5
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Name: Drothgeb
Title: Almost Fast-N-Loud
Status: Not Here
Join Date: Sep 2010
Location: Maryland
Member`s Gallery
Posts: 820
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I'd go smaller on the secondary, maybe a 62/68/.7wg, and use the 87mm turbine on the 75.
__________________
95 RCLB 4WD
10.66 sec, 128.93mph
I'm not a Cummins expert, but I did sleep at Holiday Inn Express
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01-27-2017, 08:17 AM
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#6
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Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
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Quote:
Originally Posted by Tobin
I don't know what you are getting at? I do want to put a tighter turbine housing on the small turbo.
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The setup is too small for power at 4k imo.
__________________
Jacob, 97 rclb
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