Diesel Power Discussion
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That is true although I would replace it with a big 5" turbo-back performance exhaust.:Thinking hard:One plus is being the exhaust pipe is half the diameter of that on a new diesel truck it should be less costly to replace with no fancy filtration system that turns the condensation into drinking water and the fumes into pure breathable air.
A big thing for me though would be that be an older truck would be exempt from emissions which would be a pretty nice plus.
I still marvel at high mileage vehicles like that in other parts of the country that have no rust on the lower side panels and there is actually original paint still on the top of the cab and hood.
I don't think I'd be able to handle that!
Another thing I forgot to say is that it had a really good turning radius which is unusual for a leaf-sprung front suspension. I'm not sure this would be that case for a 1970s version though. The seller was comparing it to an older VW van which have really tight turning.
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Yeah, I'd like to own a Detroit diesel someday whether it's in a truck or a piece of equipment. They don't make a lot of power though and you and have to rev the day lights out of them to move anywhere.
I operated a Clark-Michigan loader once with a 6v-71 and you literally had to have it floored just about all the time to move the machine. It would not get out of its own way if it tried. The engine did not make power anywhere but right at the governor but it did sound cool.
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I operated a Clark-Michigan loader once with a 6v-71 and you literally had to have it floored just about all the time to move the machine. It would not get out of its own way if it tried. The engine did not make power anywhere but right at the governor but it did sound cool.
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Here, this gives you a good idea of what I'm talking about above. Watch and listen to how much the operator has to press the pedal down in order to move the wheels. That is exactly what it was like to operate the loader I described.
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My truck had a partner in the church parking lot today.
Got the new 38r turbo, bellowed up pipes, intake plenums, deleted exhaust back pressure valve pedistal, fuelrail crossover (FRX) & high pressure oil (HPX) kits installed and have been driving it with the new setup the past couple of weeks. Overall EGTs are around 200 degrees lower in just about all situations- good! The truck runs so much more freely, especially in the mid range and top end. It feels so much more happy.... like it can finally breath. It's easy to speed on the freeway now simply because it just wants to rev out so much, and feels so opened up. The first time I drove it after the new mods I unintentionally redlined it in 6th gear while on the freeway; speed is more decoeiving now. It spools pretty fast, even for the larger exhaust housing. The stock turbo was super lagy and unresponsive down low whereas this one feels like it's actually building up to something when its not in boost. Smoke has been cleaned up dramatically too which is a great side benefit. You can it nail down low when it's not in boost while pulling a hill and it will only haze slightly for a couple of moments until it spools. Before I had to be pretty mindful of it in certain scenarios.
The sound is not nearly as loud inside the cab as you read for just normal driving. When you get into boost though, it sounds mean and will fill the cab with whistle. It totally changed the sound of the exhaust. It sounds a lot more aggressive and throaty with a much more pronounced whistle through the exhaust. It was initially defueling at 23 lbs of boost so I had to install an overboost code regulator to allow the map to see boost over the stock PSI setting and be able to get up to the 40lbs this turbo was designed to hit. Before with the stock small turbo and leaking up pipes, there was no chance of it defueling.
It's hard to know what the differences the FRX and HPX kits made individually since I did them both at once. I will say the truck idles a little quieter. It doesn't seem any less quite once you get going though, just at idle. Many have reported smoother idles and quicker starting. Mine has always run pretty smooth and didn't notice any change there. I don't think it starts any quicker; the chip is what quickened the starting when I installed that years ago. Fuel pressure went up about 4lbs from where it was at before at 63PSI, now it's about 67-68. The throttle response is sharper right off of idle and sometimes I have to be careful with my foot on very light throttle inputs like while going downhill.
Overall, pleased with the results and can't wait to get a trailer behind it.
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So much for the days of setting on the fender with your feet inside resting on top of the upper control arm and frame connection to work on anything.
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Yeah, the stock turbo location is almost recessed into the firewall; that is unless you go with a T4 style mount where it positions the turbo almost directly on top of the engine in the back. I had a buddy of mine who owns a diesel shop help with the install of everything.So much for the days of setting on the fender with your feet inside resting on top of the upper control arm and frame connection to work on anything.
Yeah, it's a blast and pulls even harder once you get a load on it like going up hills.WOW! You ain't kidding Mark! Glad I did not have to do swap on it!
Austen so she making some HP now by sounds of it! Cool!
Love a driving video to see/hear it now!
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Oh Boy, Austen's gonna be coming up with the silliest reasons to go out on errands now....Sounds like the mods you did were really well-suited and turned out nicely! Can't wait for the vid, man. :tango_face_grin:
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Sounds AWESOME, dude! :tango_face_devil:
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