1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

s300 or hx 40

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Old Sep 8, 2009 | 09:42 PM
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Default s300 or hx 40

hey all,

i really need a new turbo and idc if its used or new but i need to decide which is better for dd/towing a super hx 40 or a 62/71/12 or a 62/65/12 s300.
 
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Old Sep 9, 2009 | 03:08 PM
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i have a 62/65/12 on mine and like it. you will find mixed feelings on the hx40 do to some saying they have week shafts.
 
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Old Sep 9, 2009 | 08:33 PM
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thats exactly what i;ve been hearing so i think i found an s300 for a good price.
 
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Old Sep 9, 2009 | 08:54 PM
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will a turbo with a 16 or 18 exhaust housing spool quicker than a stock turbo but keep sustained egts down?
 
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Old Sep 9, 2009 | 09:25 PM
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ya i think the 16cm exhaust would be the best choice. the 18 has good airflow but has a lot of lag still.
 
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Old Sep 9, 2009 | 10:10 PM
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i hate how the stock turbo just waits till that last minute to spool. does make alot of pretty black smoke though
 
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Old Sep 12, 2009 | 11:21 AM
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ya i love that, like when your at a stop sign and some people and a beamer or hybrid show up, and you just smoke out, thats the best part.
 
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Old Sep 14, 2009 | 08:16 PM
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Originally Posted by TTipsword
will a turbo with a 16 or 18 exhaust housing spool quicker than a stock turbo but keep sustained egts down?
Is your 92 an auto? If it is, then stock is a 21cm housing and a 16 would be a good upgrade. But with the amount of fuel you'll have with 370s you'll want more than just an exhaust housing upgrade. I've been running an hx-40 for almost 2 years. It spools a lot faster than my h1c/21cm and controls the heat pretty good. I pull my 8k+ lb boat every weekend and have had over 10k on my flatbed trailer and havn't had to back off the throttle yet. For the money they're hard to beat.
 
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Old Sep 14, 2009 | 08:51 PM
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its an auto and i can't find any desently priced hx 40's and i dont know how to use the classifieds

any input would be great.

---AutoMerged DoublePost---

also that 93 dually u got GO OVRIT, is it for sale and if it is how much.
 

Last edited by DieselPerformanceGuy; Sep 14, 2009 at 08:51 PM. Reason: Automerged Doublepost
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Old Sep 15, 2009 | 01:53 AM
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An HX40 would be my choice. Spools faster than a 62/71/14 S300, and will support around 400rwhp, which is all you want for a reliable tow rig.

Don't be afraid of the stories about HX40's breaking shafts. The number one reason is because huge horsepower P-Pump guys are running them sledpulling, and breaking them.

I (and Brian Block) see no reason not to run an HX40 in a 1st Gen. Plues you can generally find them cheaper than an S300.
 
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