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I was hoping running it non IC with the super 30 would actually lower EGTs.. since it’s not getting 180* air from the coolant
Well it should as long as your fueling is fairly modest, I'd bet that it will be better power for the same EGT that your previous set up and with the IC WAY better...$.02
 

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Discussion Starter · #42 ·
Hopefully running it NON IC , with slightly larger injectors, Super HX30W, larger air filter setup , regeared ( 10% OD in the tcase) that she will run cooler than before with the restrictive annoying JWAIC, I am hoping to run it non ic atleast for a while til I can save up some coin to buy a intercooler kit like this

 

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I was hoping running it non IC with the super 30 would actually lower EGTs.. since it’s not getting 180* air from the coolant
What cm is the super 30 exhaust housing?
 

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Unless you have lots of room up front, have to start from scratch on the front end when you decide to put i’cooler in, might want to at least mock it up while apart and get engine set back, lower crossmember, doghouse built, etc., while all apart!

Ed in CO
Setting engine as far back and as low as possible will have many benefits before all is said and done...$.02
 

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No, that's not how it would work. With the aftercooler the air is cooled down to that point or a bit lower. The cooled water coming into the aftercooler is coming direct from the radiator which is lower than 180 deg which is the internal engine water temp. If you were running a separate radiator on the aftercooler it would be even more efficient. The heat exchanger mounted on the intake is the defining factor on that. Cummins offered 2 different heat exchangers on the 4bt. The later model was probably a bit better than the early one but still used engine coolant. Not the ideal system but better than none at all. Most diesels use an air to air intercooler mainly because it's cheaper, not better. The newer Ford diesels all use the water to air type. When you look at that system, the aftercooler radiator is huge. Around 4 feet wide and literally bigger than the engine cooling radiator. What is creating all the heat in the system is the turbo itself. When you compress air it gets hotter. Those silicone connecting hoses on the system are not for show. They are rated to 500 deg F and air temp can easily pass 300 deg F. Higher altitude areas make it even worse. It would be interesting to have air temp sensors in a turbo system, one reading temp coming out of the turbo and one reading temp at the intake manifold. Those gauges exist in various grades. The really good ones tend to be kind of expensive like in the $300 area. Good things are seldom cheap.
 

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Discussion Starter · #49 ·
Spec’s are :
Comp Wheel = 46/78mm flows 38-39lb/min, capable of 320-330hp on a 4bt diesel
Turbine Wheel = 65/52mm
Turbine Housing = Waste Gated 6cm for fast spooling

I’ll throw a setup together NON IC , since it’s apart now hopefully it will be OK temporarily til I can switch to an under bumper intercooler setup. Luckily I have the room to do it under my ARB bumper just like the kit . I wish I could spend endless amounts, but after these continuous issues cash is running tight on this project .
 
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