lexus 3uz engine

Give input on tuning as well as any tips and tricks you may have. Also feel free to share base mapping files for various engine types.
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mark220475
Posts: 37
Joined: Fri Jan 24, 2014 7:59 am
ECU Model: S60 Pro
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lexus 3uz engine

Post by mark220475 »

Hello all,
Has anyone out there had any dealings with setting up a lexus 3uz mainly the vvti. I have not got the engine or ECU as yet, still doing research into engines like the 1uz with is mainly with out the vvti.

thanks
mark
Alex DTA
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Re: lexus 3uz engine

Post by Alex DTA »

We helped someone get one running, but I don't know what happened after that.

Fairly simple. Only thing to be aware of is the coil wiring is a bit different.
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ignitionautosport
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Re: lexus 3uz engine

Post by ignitionautosport »

I've run a Supercharged 1UZ on an S80 using individual coils. Was straightforward. But no experience with the 3UZ VVTi sorry.
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mark220475
Posts: 37
Joined: Fri Jan 24, 2014 7:59 am
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Re: lexus 3uz engine

Post by mark220475 »

Alex, you say its fairly simple? but my understanding of the VVT-I system is that, it is not simple. As being that the "I" stands for intelligence, making the system not just a switch on switch off system as per the likes of the early Vtec or the VVt systems.
or am I reading to much into it and completely miss understanding how it works :/
Alex DTA
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Re: lexus 3uz engine

Post by Alex DTA »

It's continuously variable, not simple on off. However, it's just a standard Denso type system, which is quite common. Set up isn't massively complicated, but optimising all the camshafts will take time.

If I remember correctly, all four are variable, so you'll need an S100.
Last edited by Alex DTA on Sun Jul 24, 2016 9:24 am, edited 1 time in total.
RobScott
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Re: lexus 3uz engine

Post by RobScott »

yeah im sure you are right alex, both intake and exhaust are variable,
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