AH64ID

I would bet the higher the bar the easier the starting as the fuel is atomized better and that means more surface area for ignition, but maybe the retarded time of injection is too much? Thou at cranking rpms each degree takes a long, relatively, time to occur.

I've never cycled mine more than once, but the 3rd gen keeps it on longer as it gets colder. Is the 2nd gen the same way? I also figure that the cranking speed is just as, if not more, important that warm air. If 3 cycles zaps the batteries and you lose 100 rpm on cranking it might not fire regardless of intake temp. Just a thought. That's not all that cold, so with proper fuel and good batteries you should be fine. What are you using for a de-icer? Gelling and Ice are very different things. Most de-ice additive contain alcohol, which will emulsify the water and send it thru your fuel system since the filter cannot separate it. Alcohol additives should never be used with diesel.

You could do that with a gas engine, but not with a diesel. Even at 15K GCW my thermostat would only fully open a small handful of times a year! At 19K it opens more often, but even still the motor would never get to operating temp without one even loaded. Last summer I pulled a 6% grade for several miles at 114° out. I was empty and my thermostat never fully opened. It takes a lot of sustained power to need a full open thermostat.

Yes there are other cooling system issues, but replacing a "x" brand thermostat with a Cummins one won't fix them. Quite often getting rid of a non-Cummins thermostat fixes the issue, and that means the issue was the thermostat. Overheating isn't the primary complaint I hear about with non-OEM thermostats. It's inconsistent temps, slow to open, slow to heat, etc.

I've read too many stories about any non-Cummins thermostat not working correctly. It's a pretty important component of the cooling system so I stick to Cummins.

I don’t think so. My Jacobs exhaust brake came drilled/tapped for a probe so I used that hole.

I wouldn't go that big on the turbine wheel. 70x60 seems to be the best one for towing applications.

You asked about a spring wastegate. They are popular on the HE351's because they open the WG based on drive pressure and not on boost pressure. This will keep the DP lower and flow a little more exhaust sooner. Which wheels are commonly used in the 35/40 hybrid?

My point was the standard weight on the rear axle of a 1/2 vs 3/4 isn’t that much different. 1/2 springs will support empty weight without issue when combined with airbags. 2nd gen 1500 springs are rated for 3900lbs. At 10 psi airbags support 500 lbs of weight which more than covers the difference. Its not apples to oranges, it’s lbs to lbs. axle wrap will be the biggest issue, which is why I showed how it’s controlled on an OEM setup.

Sounds like a fun trip! Your mileage doesn’t sound too low for the weights and speeds. Yes, that much boost is a result of the turbine housing. I’m a huge fan of custom tuning, but it won’t make a night and day difference in cruise boost or mileage. I’m also a large fan of the modded HE351for applications like yours. The turbine housing is modified to take the HE351VE 70x60 turbine wheel. This will improve exhaust flow, lower mid range boost, decrease drive pressure, improve upper rpm performance, and it also seems to spook quicker. My dads 06 has this mod and I’m fairly certain if I had known about it before buying my Garrett I would have gone that route.

The new 3500ks with OEM air assist suspension are similar to that. They have 2 softer leaves with airbags vs 4 stiffer leaves. The biggest differences is that they have 2 half leaves under the main leaves that help control axle wrap, and provide some overload help. The Cummins torque could do some descent twisting to the 1/2 ton springs so you would need some sort of anti-wrap device. That could be 1/2 leaves or traction bars. With 5-10 psi in the bags the 1/2 springs should ride nice and not squat. I just looked up the curb weights for an 05 QC LB 1500 vs 2500. 2260 vs 2690... 230lbs different, not a lot. Here are the best pics I could find of the 3500 air assist suspension. The lower, thicker, leaves are the 1/ 2 leaves.

60x86 compressor wheel (same as the 7 blade super 40 wheel) 65x58 CW 12 blade turbine wheel (often called a 68x60 by Holset, thou I don’t know why) 70x60 VE 12 blade turbine wheel Holset calls the CW a 60/60/9, but it measures a 60/58/9

This is off of a 98 in the parking lot at work.

I believe that's there for the bump stop to contact.

rebuild kits are cheaper than I recall. https://dieselautopower.com/holset-genuine-he351cw-rebuild-kit-4031484/

It's tankless. I used to run a 5 gallon setup on my '95 4Runner (for wheeling) and it was great for small jobs and the first tire but after that you're filling the tanks and tires at the same time and it's very slow. So it depends on what you want to do. For my use I don't need/want a tank. It fills the airbags quick and tires fast enough. I will be adding a 0.5 gallon tank this winter thou, as I'm swapping out my Jacobs exhaust brake for a PRXB. The 0.5 gallon tank will be on a check valve so it's not part of my line for filling tires/airbags.

For sure, start with an un-modded one and see how it works for you.

I have a ViAir, 450C, in my tool box and it's been great! I've had it for nearly 10 years now and it works like new. I use it for tires, airbags, etc. It probably gets used 20-30 times a year, maybe more.

Yes it can. It just depends on what you want it to do. The modded HE351 is better at low/mid rpm towing than most aftermarket turbos. It will lack the upper rpms of a aftermarket turbo but it comes down to usage.

That included a new turbine wheel and machining. Is $100 for OEM parts? That seems a little low for OEM. There are a lot of junk rebuild kits out there.

I paid just under $1K for a rebuild/turbine modification for dads a couple years ago. I don't recall the breakdown on rebuild vs modification.

Yeah 6V’s are the way to go for camping without hookups, which is what camping should be IMHO. These are going on 4 years old and show zero signs of aging.

It’s been a lot more than 48 hours in this photo. The batteries haven’t been charged since early September. They sure don’t leave a lot of room for complaints.

Interesting, do you work out in Caldwell? I think they got inversion snow Friday morning. I live just east of that curve and don't recall any snow Friday morning... it did start snowing Friday night about 9:45. I first left the house at 7:40 and then again around noon.

There are people that modify the compressor but I wouldn't. Just a slightly larger turbine and call it good. It's a sweet little turbo at that point.