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How do you know which ones? Is it something I can DIY or do I need professional tools?

2 options easiest first: 1 - Swap black plastic intake manifold from VVTI onto your engine and 12-hole fuel injectors like these: https://amzn.to/3c0kNyC that will gain you some HP not quite what VVTI makes but closer. Add some headers and you'll be there. 2 - Yes swap in the VVTI motor but...

2UZ VVTI ECU can it be reprogrammed?

It's been running great, no hiccups at all since installed. Added a cat back exhaust and picked up some more power too. Using the factory ECU and 5 speed automatic transmission still.

I tried to use Toyodiy to figure it out but could only get a list of factory parts. I guess it will remain a mystery.

Ok but not 2UZ?

Will 3UZ VVTI cams drop into a 2UZ VVTI? Has it been done? Has anyone measured the lobes to compare? What about 1UZ VVTI I believe they are different and won't work? Thanks. Looking for a low-cost option vs. custom cams just to see what is possible.

Nice find on the blower. I agree it is an amazing price also includes intercooler. If you can 3D model an adapter then it could be CNCd. I'd buy one for sure if someone made it for 2uz. I would think one could just design an intermediary piece that would match up the ports between the heads and...

There are several turbo kits on ebay, some look better than others: https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=tundra+turbo&_sacat=0 You can use a standalone or get a piggyback. On my Land Cruiser 4.7L I am using a MAP ECU3: Other things I would do for turbo kit: AEM...

You can install a piggyback ECU on your truck which will allow the stock ECU to run the engine like normal except for when you are in boost then the piggyback will increase fuel and adjust timing according to your custom tune. Check out my video:

I went with a MAP ECU3 install on my LX470:

This project is totally awesome I just found it today but I will be sticking with it.

This guy has some gnarly turbo cams and intake plenum for 1/2/3/UZ: https://www.ebay.com/sch/stevewill/m.html?_nkw=&_armrs=1&_ipg=&_from= I thought I'd give him a plug because he gave me a good deal on his valve springs. The cams are designed for 4000+ RPM top end with turbo and I'm trying to...

Get a tunable ECU like MAP ECU3, use black plastic intake from later model 2UZ, headers and exhaust (Pace Maker headers look awesome), and then get some cams like Kelford. I think that's pretty much 300hp+ territory. That's my plan. Add a turbo or TRD supercharger and you're off.

Any updates? Have you gotten it tuned any further? I am very interested in your build because I want to do something similar with my 2007 LX470. I just installed a MAP ECU3. It was pretty easy and I think it will be able to control the modified 2UZ easily. I'm looking at cams next and the...