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12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

pre boost screw

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Old Jul 21, 2009 | 06:47 PM
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chody19's Avatar
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Default pre boost screw
if it smokes a bunch and i turn this down to have less fuel down low will the turbo light faster
 
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Old Jul 21, 2009 | 10:09 PM
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turn it away from the engine, yes it will light faster
 
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Old Jul 22, 2009 | 04:15 PM
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ok man thats what i was thinking
 
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Old Jul 22, 2009 | 08:51 PM
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so will it take fuel from the bottom end and take it on top?
 
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Old Jul 22, 2009 | 11:03 PM
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no more fuel on top it just tightens the spring so that the afc isnt as sensitive to boost pressure
 
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Old Jul 22, 2009 | 11:39 PM
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so what it do exactly?
 
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Old Jul 22, 2009 | 11:54 PM
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It adds fuel when there is no boost. Therefore, doing nothing except makin a lil smoke.
 
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Old Jul 23, 2009 | 12:16 AM
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so make it slower for some smoke? bc the turbo dont spool as fast

---AutoMerged DoublePost---

im goin to mess with mine tomorow see wat i can get to work good
 
Last edited by bowtech; Jul 23, 2009 at 12:16 AM. Reason: Automerged Doublepost
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Old Jul 24, 2009 | 11:41 AM
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ya i block out the hole high it lame the guy befor liked smoke and i did not know he adj that becuse it just seams like this pro street lags like way hard
 
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Old Jul 24, 2009 | 02:06 PM
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i yruned my wheel down to like half three quarter the way and gaine like 10 15 psi boost but i just turned it back up
 
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