5.9L Rotary Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps Related To Performance And Longevity

14mm or 16mm turbo housing

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Old Jul 21, 2009 | 01:08 AM
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Default 14mm or 16mm turbo housing

alright got the 3200 rpm spring, the bully dog power pin and have my pump turned up. The next step i'm lookin towards in upgrading the goat is a different turbo. Is a 14 mm to small or would it be just right for just the upgrades i have? What is ya'lls professional opinions?
 
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Old Jul 21, 2009 | 01:09 AM
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if all your doing is the exhaust housing the 14 would spool up faster than the 16, the 16 i was running in my 5 speed was a tad lagy with a trailer on the back.
 
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Old Jul 21, 2009 | 01:14 AM
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ya at this point anything is better than the 20 mm that came stock with it. On the 2nd gen 12 valves did they come stock with a 14 mm housing?
 
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Old Jul 21, 2009 | 01:16 AM
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12cm wastegated. 20 holy hell surprised you can get that spinnin
 
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Old Jul 21, 2009 | 01:19 AM
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k so that would prolly be to small for my 1st gen ctd you think? Also whats the difference between a wastegate and nonwastegate?
 
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Old Jul 21, 2009 | 01:21 AM
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which would be to small? a wastegate comtrolls the amount off boost delivered to the engine by dumping excess pressure into the exhaust to prevent an overload of boost. its basically avalve that opens when there is to much pressure.
 
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Old Jul 21, 2009 | 01:26 AM
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do you think the 12mm housing would be too small for the amount of horsepower i am producing?
 
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Old Jul 21, 2009 | 01:29 AM
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how much? ive herd guys pushing there stock turbos on the 2nd gen dodges to 400hp, you will run cooler with the 14 or 16 but the 14 would light faster, i know when i had the 16 my towing temps were cooler than the 14 that was originaly on it but it lagged a bit more with the 16
 
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Old Jul 21, 2009 | 01:34 AM
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about 300 horses but i do tow a lot with this pickup also so i do want to keep my egts down
 
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Old Jul 21, 2009 | 01:37 AM
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if you tow alot i would go with the 16mm. i never once went over 1200* with a load with my last turbo with the 16mm, what tranny you got?
 
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