Hi Folks, sorry for the length of this post. I replaced my manual 1HD-T converted HZJ80 with an auto HZJ105 with a DTS turbo fitted, pre altitude compensator standard pump and injectors, 3” exhaust.
I was pretty pleased with the economy and power of my 80, but I’m deeply under whelmed by both in the 105 series. I now have three options. Please keep in mind that I regularly tow and tour, I’m not a social media influencer looking for tag lines like rolling coal or soot monster.
1/ If the engine checks out as healthy, I could get pump, injectors and turbo built and add an intercooler. What power and economy have people reliably achieved from this combination? I’ll obviously get a dyno tune and the AFRs and turbo performance will dictate the final outcome, I’m looking for guidance to aid in decision making.
2/ Assuming the 1HZ fails its heath check, I can refresh the engine. I have some left over 1HD-T parts and could either build a 1HD-T or 1HZ. The 1HZ would be the cheaper option. There are a great number of aftermarket piston options. Once again, what economy and power have people achieved? What pistons and rings have people used with success/failure?
3/ The most expensive option is to buy a wrecked HDJ100 and convert to what is an excellent and very economical engine. How close will the first two options get in power and economy?
Before anyone asks, I deeply regret not buying my car back, at the time the hole in the sump created by the diff pumpkin and no knowledge of how long the engine ran for after oil exited the party, left me with doubts about the engines health.
I was pretty pleased with the economy and power of my 80, but I’m deeply under whelmed by both in the 105 series. I now have three options. Please keep in mind that I regularly tow and tour, I’m not a social media influencer looking for tag lines like rolling coal or soot monster.
1/ If the engine checks out as healthy, I could get pump, injectors and turbo built and add an intercooler. What power and economy have people reliably achieved from this combination? I’ll obviously get a dyno tune and the AFRs and turbo performance will dictate the final outcome, I’m looking for guidance to aid in decision making.
2/ Assuming the 1HZ fails its heath check, I can refresh the engine. I have some left over 1HD-T parts and could either build a 1HD-T or 1HZ. The 1HZ would be the cheaper option. There are a great number of aftermarket piston options. Once again, what economy and power have people achieved? What pistons and rings have people used with success/failure?
3/ The most expensive option is to buy a wrecked HDJ100 and convert to what is an excellent and very economical engine. How close will the first two options get in power and economy?
Before anyone asks, I deeply regret not buying my car back, at the time the hole in the sump created by the diff pumpkin and no knowledge of how long the engine ran for after oil exited the party, left me with doubts about the engines health.
