Supercharged Lexus 3UZ

[Paul Hassell 2]

Good morning all, 

We are about to start an engine swap project on a Land Rover Defender 110 where we are going to fit an early Lexus 1UZ (non vvt) with an Eaton 112 supercharger !

Has anybody on here got a 1UZ engine using Link, as we are not sure which ECU would be the most suitable.

Cheers in advance

Paul.

[Adamw 608]

Yes we do!  We have one as one of the donkey engines on our dyno. The Storm would be my suggestion as for the minimum ECU to go for - 3 main reasons:

The Storm is our lowest cost ECU with Knock control.

The Storm is our lowest cost ECU with 8 injector and 8 Ignition drives.

The Storm is our lowest cost ECU that can drive the stock stepper motor idle valve.

There is a comparison table on this page here to highlight the main differences between our ECU models:  https://www.linkecu.com/products/ecu-comparison-chart/

 

[Paul Hassell 2]

Great, I have previous experience with the Storm, but am i correct in thinking the Storm does not accept fly by wire throttle ?

[Scott C 1]

You are correct.  The Xtreme is the most economical ecu with ethrottle control. 

[Adamw 608]

On 7/12/2018 at 12:47 AM, TeamJHR said:

Great, I have previous experience with the Storm, but am i correct in thinking the Storm does not accept fly by wire throttle ?

I thought the early 1UZ didnt have E-throttle?  Was I wrong there?

 

[Brad Burnett 81]

nope your right adam.

[Paul Hassell 2]

Sorry for not posting up for a while, the conversion is now going to use a 3uz, but almost certainly still with an Eaton Supercharger.

I think the Thunder will be the ECU of choice....any thoughts on this ?

[Richard Hill 42]

Thunder would be great. Loads of spare aux outs and inputs, and dual lambda too.  You also get built in ECU hold power control.  I have a 3uz which I will run with my thunder.  

Just not sure what car it's going in yet !

[Richard Hill 42]

I've just started building a custom 1UZ VVTi loom and specced an ECU for a customer replacing the standard setup (in a Triumph Stag), and with an Xtreme we quickly ran out of aux outputs.  The build is now going to use a Thunder.

To run the standard engine functions as implemented on the LS400, it will take at least 12 Aux outs from my calculations:-

VVT Bank 1

VVT Bank 2

Fuel Pump

ACIS

Tacho

Ethrottle Relay

Ethrottle +

Ethrottle -

Ethrottle Clutch (PWM 250Hz)

Check Engine Light

Oil Pressure Warning Light  

Fan  (Viscous on LS400, but I like to add electric for any conversion)

 

Adding Dual Lambda for both banks into the equation (and 3 axis accelerometer, high speed digital inputs, etc.)  it quickly makes sense to go for a Thunder.

 

Richard.

 

 

[Paul Hassell 2]

Thank you very much @Richard Hill, that is very helpful, I was trying to work out how many Aux outputs I would need.

This setup will be a supercharged 3uz but i do not know how to edit the post title ( if that is even possible).

[Adamw 608]

7 minutes ago, TeamJHR said:

This setup will be a supercharged 3uz but i do not know how to edit the post title ( if that is even possible).

done.

[Paul Hassell 2]

On 11/14/2018 at 7:52 AM, Adamw said:

done.

Thanks @Adamw.

[Macca3UZ 0]

Hi all,

I am also looking for info on which ecu is going to be best for a boosted 3UZ. I too am leaning towards a supercharger setup, looking at a harrop htv2300, but still haven’t ruled out a turbo as I like what Toyota did with their intake manifold and it is a little hard to part with. On that subject, is a channel allocated for the dual intake actuation?

 

If I did go the turbo route, is there room to run boost control? 

 

Also is there any way to have a cruise control setup if the car never had it?

 

its all going into an old Landcruiser with an auto (has its own standalone computer). Speed signal is available for the cruise control.

 

Thanks in advance!

 

Regards,

Macca

[Jappa 1]

I have an eaton M122 supercharged 3uz-fe in my celica and am very happy with it.

Unopened wrecker engine of unknown km's

Link storm G4

10psi of boost

Mechanical throttle body

550cc injectors

Makes 304wkw @ 7300rpm and over 500nm of torque between 2250 and 4500rpm

Cheers Jappa

 

[andy r 0]

have you changed your rods to cope with the supercharger boost

 

[Jappa 1]

No, wrecker spec engine is unopened. Everyone says the 4.3 rods are weak, haven't caused a problem yet.

[Jappa 1]

Now running 12lbs.  with a smaller blower pulley and nothing has come out the side. Yet......

[Richard Hill 42]

5 hours ago, Jappa said:

Now running 12lbs.  with a smaller blower pulley and nothing has come out the side. Yet......

Great info, thanks. I have a standard 3uz going in my kit car, might look at boosting it...