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

Turbo question please help

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Old 01-19-2011, 07:31 PM
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Default Turbo question please help

Hey guys, me and my buddy are in an argument about this, my problem is that I'm running between 900 and 1000* of egts cruising down the road. I'm running a generic eBay hx40 on top of a ht3b with a 23 cm housing. That generic turbo is really slow spooling let alone pulling that big turbo to. So I want to get a 62/65/12 for the top turbo. It will spool instantly and run the motor more efficiently. Before I put on the junk hx40 I had a 35/40 hybrid. Ad it ran right around 700* down on the road. So that turbo has to be the culprit. That 40 twinned up is just to slow and it's requiring so much fuel to keep it going down the road. Yielding high egts. My buddy says that 62/65/12 is a waste of money and will not help my cruising egts. What do you guys think. Please put in any ideas I need to get this settles
 
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Old 01-19-2011, 07:33 PM
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You're buddy is smokin crack. I would go with a 68mm turbine wheel. Do you know any specs on that 40?
 
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Old 01-19-2011, 08:16 PM
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it is 60/65/16 the exhaust wheel might be a tad differet.
so you agree that a s30062/65/12 would be good and lower my cruising egts?
any other tips on lowering cruising egts, when i get into the throttle and the twins lite i dont see over 1400*. its just cruising down the road is so hot and bairly going up a grade unloaded hitting 1100 and that. im sick of it
 
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Old 01-19-2011, 08:19 PM
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That big exhaust housing is what's doing it. That s300 would work pretty well but a 68 turbine would work better.
 
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Old 01-19-2011, 09:35 PM
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Who makes a 62/68/12
 
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Old 01-19-2011, 09:51 PM
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Borg warner makes the parts. You'll have to probably specs the charger out I don't think thats an out of the box turbo. You deffinately need a bigger exhaust wheel though. You need to balance your chargers out. With the small exhaust wheel turbos you will be trying to suck air through the primary and then blow through the secondary.
 
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Old 01-20-2011, 08:20 AM
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id call engineered diesel. i think the new hot turbo is their titanium wheeled 63mm compressor with their 68mm turbine thats supposed to flow like a 71 but spool like a 65.
 
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Old 01-20-2011, 09:20 AM
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That's exactly what chris from engineered diesel said. The turbos are working against each other. I'm in touch with him and hopefully we can figure something out
 
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Old 01-20-2011, 11:12 AM
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Originally Posted by dan33klein
That's exactly what chris from engineered diesel said. The turbos are working against each other. I'm in touch with him and hopefully we can figure something out
he is a great guy to work with, can't go wrong with them
 
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Old 01-20-2011, 08:33 PM
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Originally Posted by 94 12valve
he is a great guy to work with, can't go wrong with them
thats good to know, i know he will be able to set me up with the right charger.
im just not so sure about the right price. moneys always an issue these days, was trying to look for a used charger
 


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