Thats more than impressive and workmanship..
My pack has 302AH of actual usable capacity, which is absolutely INSANE.
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Thats more than impressive and workmanship..
My pack has 302AH of actual usable capacity, which is absolutely INSANE.
..
Does @Lutz Auto have a link to that pyro? Probably going to run one on my rig. Very cool. BTW I like how you clocked the turbo for the intercooler, good out of the box mindset.Another thing i did in preparation for the Utah trip in May was installing a boost/EGT gauge. I felt that i needed Turbo/EGT gauges ever since i put the diesel engine in, but i really hated the non-original look of various gauge solutions on the market. That was until i saw the neat offering by @Lutz Auto . An all-in-one display that replaces the useless factory clock, can be configured to display a whole bunch of things, and doesn't look out of place. Awesome product!
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Most people install the EGT probe into the top of exhaust manifold where all the collectors merge. This is a good location, and you can drill/tap the hole without removing the turbo or the manifold. However i didn't like it, because I would have to either ditch or hack up the factory heat shield. So i found a better way - putting the probe in from the front of the manifold, just before the turbo flange. You must remove the manifold for this, and drilling/tapping the hole is trickier, but i didn't mind because the end result is much cleaner/discrete looking, and you can reuse the factory heat shield without having to modify anything.
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There were also a few more things i wanted to do while the turbo/manifold were off. First, i had a NOS OEM turbo center section (which i believe is now discontinued) that i wanted to install as part of my ongoing "baselining on steroids" project.
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At this point i knew that i wouldn't be able to finish the intercooler in time for the trip, but while the turbo was out, i did something else to facilitate the install later - clocking the compressor housing of the turbo to a different angle so that it points towards the fender well (instead of up). The reason for this is because l want to keep the "Turbo" intake pipe (for clean factory look), and the only way to do this is to clock the compressor housing of the turbo back, so that there is room between the outlet and the intake pipe for new intercooler piping. Both hot and cold intercooler pipes will be routed through the fender well (under the airbox) and will be out of sight. I fabbed up a temporary pipe to connect the clocked turbo to the intake pipe (which will be replaced with titanium intercooler pipes soon).View attachment 3117981
Thanks!Does @Lutz Auto have a link to that pyro? Probably going to run one on my rig. Very cool. BTW I like how you clocked the turbo for the intercooler, good out of the box mindset.
Looks like it's available here Multi-Gauge Clock Replacement for HDJ80 (no obd2) | Lutz Auto - https://www.lutzauto.com/product-page/LTZ-80-CLOCK-DIESELDoes @Lutz Auto have a link to that pyro? Probably going to run one on my rig. Very cool. BTW I like how you clocked the turbo for the intercooler, good out of the box mindset.
Love your build, but pray you never have a battery fire. Google “thermal runaway.”Really behind on updating this thread... Will try to fix that in the coming weeks.
Unfortunately i was not able to finish the titanium and carbon fiber goodies in time for the Utah trip we did in May, so those projects got pushed to winter.
But i did do some other interesting things in time.. Like the auxiliary battery system for example which im excited to share bellow.
I've been planning this mod for quite some time. Im running the 12V (1HD-FTE) starter on my truck, so the second battery tray was not being utilized. I definitely wanted to go lithium for extra capacity, and i assumed that buying one was my only option and i was close to pulling the trigger. But then i saw a video of a guy on YouTube opening up one of these premium Li batteries. Less than half of the case's volume was actually used by cells. The case was half empty, and the cells they used were cylindrical (so lots of wasted space in between). I immediately realized that there must be a better way... After doing a whole bunch of research, i determined that 4 prismatic (naturally square) 3.4V sells of the common size will JUST fit inside the factory battery box. Just barely..
I bought 4 of these CATL cells, 302AH capacity (same company that makes them for Tesla nowadays). Then the work on case design/build began. These lithium cells require a battery management system (BMS). I wanted the case to be self contained (to include BMS), AND i wanted to use the factory battery tie-downs to secure it. Another challenge was that case had to prevent the cells from expanding during use (which they are known to do). This mean that the case's internal dimensions had to be VERY precise. I've decided that building it from Aluminum would be the best plan.
Each of the 4 sides, and the bottom were individually machined to precise tolerances (under 0.25mm).
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Then the case was TIG-welded together. The inside was lined with UHMWPE (courtesy of McMaster Carr.. great source for this sort of stuff) to prevent a possible short. Tabs on the sides were added for factory battery tie-downs.
View attachment 3104702
The BMS that i selected for this sits on top of the battery pack, between the terminals. So it adds zero volume to the battery pack. It's riveted to the lid.
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Final touch was the RedArc BCDC1250D charger. Originally the plan was to install it in front of the main battery (there is lots of room there). But then i noticed a small "pocket" in the inner fender inside the aux battery tray. By pure luck, the charger happened to fit that pocket almost perfectly. You want the charger to be as close as possible to lithium batteries, so this worked out great.
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Overall, I'm really happy with how this project turned out. It's absolutely crazy how well it fits - as if the factory battery box was built by Toyota for this exact battery pack. There is 1-2mm clearance on all sides of the pack. Including between the lid and the hood. The BMS has full Bluetooth controls and monitoring via phone app. BMS also has an external temperature sensor. The temperature inside the battery pack NEVER went up more than 1-2 degrees above ambient air temperature during driving in Utah/Arizona in late May, so mounting the lithium battery inside the engine bay is a non-issue (due to superb, fully isolated, vented design of the OEM battery box.)
I have been using this setup for 4 months now, including a 9000km trip to Utah in May and a couple of shorter camping trips. Zero issues or complaints. A typical lead-acid Gr27 battery has about 50AH of usable capacity. An off-the-shelf lithium battery of the same size has about 100AH. My pack has 302AH of actual usable capacity, which is absolutely INSANE.
During our trip to Utah, i turned the charging off completely for a week (done via phone app). After a week of running a fridge/freezer, lights and music during camping, and charging various devices every evening it was down to 83% capacity. Having this much battery capacity will allow me to run things that were never considered to be possible on a small overlanding rig - such as battery powered hotplate for cooking, water heater, and portable air conditioner. I have a lot of really cool ideas that I'm going to work on for next season...
Love your build, but pray you never have a battery fire. Google “thermal runaway.”
Seems like you've done your research. But unless I'm missing something, what these systems do is constantly manage a potentially disastrous situation that results from an unalterable property of the current batteries themselves. Have you considered what might happen if the management system fails, or the battery itself is damaged in a wreck--particularly one where you cannot immediately exit the vehicle? Sure; probably never happen. Just like I'll probably never need that bull bar up front. Not to be all doom-and-gloomish; I look forward to seeing your carbon fiber storage system etc. But that's probably not going to kill anyone if things go sideways. And that's kind of my first criterion...Thanks! I researched this topic before going with this battery setup, and i have concluded that it's not a concern at all:
- LiFePo4 chemistry batteries (like the one im using) are far less susceptible to thermal runaway in general
-As i've said earlier, the factory battery boxes are very well insulated from engine bay heat. I have a battery temperature probe inside my pack which I monitored closely, and the battery temperature never goes higher than 1-2 degrees above ambient air temperature.
-Batteries that im using are rated at 1C constant discharge rate (meaning 302A current draw). The battery management system that im using is capped at 150A. This means that at most, the batteries will be discharging at half of their maximum safe rate, so i expect very little heat to be produced as a result.
- Finally, the BMS will shut off charging/discharging of the batteries based on the temperature probe input WELL before the temperature reaches anywhere near the "thermal runaway danger zone".
Well, i can't really see how a battery pack like this is any more dangerous than the lead-acid battery that sits in that box from the factory. Even if the management system fails, nothing bad would happen because there won't be any electrical systems that can draw more than BMS limit anyway. And there is still gonna be a separate (from BMS) 150A circuit breaker.Seems like you've done your research. But unless I'm missing something, what these systems do is constantly manage a potentially disastrous situation that results from an unalterable property of the current batteries themselves. Have you considered what might happen if the management system fails, or the battery itself is damaged in a wreck--particularly one where you cannot immediately exit the vehicle? Sure; probably never happen. Just like I'll probably never need that bull bar up front. Not to be all doom-and-gloomish; I look forward to seeing your carbon fiber storage system etc. But that's probably not going to kill anyone if things go sideways. And that's kind of my first criterion...
Hmmm, seems your research is more recent than mine. That does look way safer that the Lithium batteries I was looking at. According the video from @audi2nr, there's still a thermal runaway danger--but only at really high temperatures. So unless a wreck dumps gasoline on it or knocks it into a turbo exhaust, maybe they're okay after all.Well, i can't really see how a battery pack like this is any more dangerous than the lead-acid battery that sits in that box from the factory. Even if the management system fails, nothing bad would happen because there won't be any electrical systems that can draw more than BMS limit anyway. And there is still gonna be a separate (from BMS) 150A circuit breaker.
As far as being in a wreck goes - sure that could probably cause a fire. But so could the factory dual batteries that would normally sit in those boxes. If anything, the chance of that happening with my setup is smaller because:
a) My battery has no unprotected wiring outside of the battery box (unlike the factory dual batteries that have a huge unprotected starter cable running across the radiator support and then along the inner fender to the starter.
b) Battery pack itself is fully enclosed in a metal, non combustible case.
Im not sure if this is good or bad.I’m glad I ate mushrooms to catch up with this thread.
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There are a few suppliers in China who sell these cells. I did some research before buying, and went with "Shenzhen Basen" based on good reviews. Took a few months (like 3) to ship from China. Cells themselves are made by CATL (Tesla's supplier). They came well packaged and fully charged. No issues.Dennis, been meaning to ask you, but who did you buy the battery cells from and are you happy with them?
Sooo, 'putting the truck away for the winter.' Does that mean away-away and no more cool posts, or in-the-garage-and-still-being-tinkered-with?Im not sure if this is good or bad.
There are a few suppliers in China who sell these cells. I did some research before buying, and went with "Shenzhen Basen" based on good reviews. Took a few months (like 3) to ship from China. Cells themselves are made by CATL (Tesla's supplier). They came well packaged and fully charged. No issues.
I have nothing negative to say about these cells at all. Im very happy with the setup - it's really astounding that you can cram so much capacity into the factory battery box. My custom pack has 6 times the usable capacity of a regular group 27 battery at approx the same weight, without taking up any cargo space. What's not to like?
Anyway, might as well post a small update. As I've said in the first post - my "baselining on steroids" plan for this truck involves replacing ALL important parts/systems with brand new OEM parts. Here are a few things i checked off the list recently:
Completely new power steering system. New (not rebuilt) steering box (p/n 44110-60212), steering dampener, high pressure hose and reservoir (pump was replaced a couple of years ago).
One of the advantages of using a brand new steering box (aside from the obvious) is that it already comes from Toyota with the "105 series upgraded sector shaft", which has more splines and is stronger.View attachment 3140890
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New HDJ100 3.0KW 12V starter (28100-17081). A little bummed that it's "Made in Thailand", especially considering the price.
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The rest of the cooling system parts - fan, fan clutch, shroud. Radiator, water pump and all the small parts were replaced earlier.
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Went on a small camping trip with my daughter on Labor day weekend. Hoping to squeeze another trip in a couple of weeks before putting the truck away for the winter.
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Sooo, 'putting the truck away for the winter.' Does that mean away-away and no more cool posts, or in-the-garage-and-still-being-tinkered-with?![]()
Dennis,
Beautiful build. I went through a similar build 4 hearts ago and already put 70K miles on the truck. NO ISSUES. You would love it. One thing I recommend is to add an intercooler. It will save the engine long run and it will run happier. Once installed, I can climb the Sierras at 75mph 5th gear in cruise control and EGT does not exceed 875F. I installed a PDI from AUZ but after that installed a custom (nicer then PDI) on a 40 w/1HDT, a 62 w/1HDT and now a troopy with a 1HDT for 1/3 of the price.
By the way, did you install a cruise control?
Cheers mate. Again, beautiful work you do.
Did you opt for the bearing for the h151 for the input shaft?
Also do you have a part number for those m8 bolts you mentioned?
I’m looking at doing the h151 to h152 upgrade![]()