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New/used exhaust manifold arrived in one day. Nice place. Lowest prices, part came cleaned and painted. Puts the turbo about where it currently is on the 8.3L, just slightly further away from the block, but should be fine. Remaining engine homework will be to flip the oil pan to front sump...

The unit above appears to be a Chinese Delco clone. I don't think that one was sourced through me (which is OK, I don't care), as I only had one Chinese unit for benchmarking, and it sold to a guy in an emergency need for a low cost unit. There are 2 different common pulley stand-off heights...

There is a factory block mounted coolant filter available. Yummy.

Thanks. I'm looking forward to some of the toys via this modernization. This particular ISL does not have an engine brake. It came from an expensive RV, and I don't think that group enjoys excessive noise. It did have an exhaust brake on it though. Factory mounted and controlled. The ISL...

Here is some grid heater action, just shoved my phone in the intake and clicked it:

Thanks, but, I really just guess my way through it and put on a good show. I wish I knew less about engines, and more about other things in life that matter more, but oh well, this is what we've got, so it is what it is.

OK, so the pneumatic cylinder is spring loaded one way. When air is applied, it pushes up the collar which all the vanes are located. This is really called a nozzle. These vanes are cut with 2 different patterns in them. Depending on how the pattern aligns with the turbine wheel fins...

Yep, thanks. Got the turbo apart. No locating pin for the turbine housing. So, easy to re-clock it for the position I want. Just line up the vanes and we're golden. Here is a couple of shots of the VGT. Next post will be how it actuates. I did not know until I played with it. Simpler than...

Yep yep, thanks. High or low rear just makes it harder to bend exhaust 90, though there are ways to do it. Low rear as it is now may hit the heater core box. Going for high-center mount, which is where the stock 8.3L is. Still learning, looks like some manifolds have round ports (like mine)...

More Raging Slab, just kidding. I'm moving the turbo to the same location where it is up high on the 8.3L. So, off with this exhaust manifold, and I 'll need to clock both housings on the turbo. The turbine housing has a locating pin to the center section, but that can easily be re-drilled...

Thanks for the compliments guys. Very happy to bring modern reliable technology to our trucks, and for a very reasonable price. Anybody who has ditched the stock alt can now shut their truck off in any switch order with no over-volt. The alternators are also temperature compensated, so you...

Move to "Parts Wanted" dept?

Could also be the fuel tank dip tube, its fitting, or its solder joint into the fitting in the tank. Seeing a lot of issues with these right now.

Is the spring brake over-ride mushroom button pushed in? Once truck is air > 60psi, make sure it is pulled out.

Interesting, thanks. Is there a specific design on this rim which permits this, which is not found on the others? Is this independent of bead-locks? Apology for all the base level questions. M939a2 front wheel stud length for HEMTT rims and combat rim CTIS wheel valve transplant onto HEMTT...

I have a PacBrake butterfly exhaust throttling brake that came factory stock on an RV Cummins ISL-400hp engine that I am probably not going to use. It clamps directly to the turbo with a band clamp. Air actuated cylinder. PM me if interested.

Has anybody here confirmed HEMTT rims are plug-and-play for use on front of M939a2 (primary interest in going to 16's)? Concerns seems to be stock wheel stud length for additional 0.350" of thickness in lug nut area of rim, in addition to CTIS wheel valve carry-over from stock combat rim to...

No, I do not have a 50 cal for it, yet. Trying to price out a single shot home built kit. Don't even know where to start on that. Not a big gun buff. Not against them, just not obsessed with them either. My dad was more into them than myself. He just made me reload 1000's of 12ga shells...

There should be a pressure switch on the low side of the system. This switch has 2-3 functions: 1. Prevents compressor from engaging if low side pressure is too low. This assumes the evaporator is ice blocked, or system too low on charge for safe operation. 2. Cycles compressor on/off if...

10-4, good point. Thanks. Do they just get put in from the outside of the vent door and snuck around the edge?