2350 boost pressure while engine braking.
12-17-2020, (Subject: 2350 boost pressure while engine braking. ) 
Post: #1
2350 boost pressure while engine braking.
Curious what guys are seeing for max boost pressure under higher RPM engine braking(1800-1900) on cm 2250/2350s. I have seen mine get as high as 40 psi briefly while using the jake.


User's Signature: 2015 389 Peterbilt. ISX 550 18speed 3.70 gears
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12-17-2020, (Subject: 2350 boost pressure while engine braking. ) 
Post: #2
RE: 2350 boost pressure while engine braking.
40 psi sounds excessive. Many ISX's will crest at about about 28~ish psi under full load on highest setting.


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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 Thanks given by: SemiSweet
12-17-2020, (Subject: 2350 boost pressure while engine braking. ) 
Post: #3
RE: 2350 boost pressure while engine braking.
About 35 psi when braking. 32-33 psi boost full throttle.
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 Thanks given by: SemiSweet
12-18-2020, (Subject: 2350 boost pressure while engine braking. ) 
Post: #4
RE: 2350 boost pressure while engine braking.
450hp 2350 about the 28 psi mark.


User's Signature: 2015 Kenworth T660
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 Thanks given by: SemiSweet
12-18-2020, (Subject: 2350 boost pressure while engine braking. ) 
Post: #5
RE: 2350 boost pressure while engine braking.
My cm870 would hit 33psi at absolute peak and my cm871 hits 28-29psi.
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