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Old 10-24-2016, 10:34 PM   #1
bleedcummins

Name: bleedcummins
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Blow-by on modded engine

What do you guys measure for blow-by? Stock engine max spec is 10"(iirc), but what is everyone getting that has extra fuel, extra boost, extra power over stock? I measured summer of 2015 and at 20psi turbo boost I had 6", but by 45-50psi I had 14", I didn't check it at 65-70psi.
So wondering what other guys are getting and wondering if a rebuilt engine, would keep blowby back in spec or if it's just nature of the beast of a modified diesel
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2002 2500 4x4 drag comp, 6x.013, s357/s475, DTT, 12.48@109.38
 
Old 10-25-2016, 05:53 PM   #2
dangerous06
 
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who measures blowby? Blow by bad period!Click the image to open in full size.
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E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
 
Old 10-25-2016, 07:19 PM   #3
bigstacks95
 
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I have 3 blow by tubes on my puller. If the three of them each leave a spot less than 6 inches in diameter on my trailer, I'm satisfied
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58 Dodge Power Wagon 3.0 Limited Pro Stock diesel pulling truck

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