Various Lexus 1UZFE Head Modifications

What You’ve Always Wanted to Know About Shaved Heads,
Cam Timing & Adjustable Cam Gears, But Were Afraid to Ask

I decided to write this article in collaboration with Rod (Zuffen) to help enlighten fellow hotrodders on this subject, which is probably as critical to making power out of your … Read the rest of the post...

Lexus 1UZFE Compression and Leakdown Test

This is the most interesting topic so far.  This is an exciting topic because most first generation Lexus LS400/Celsior and Lexus SC400/Soarer owners are interest in forced induction like supercharger, turbocharger and NOS.  The first generation Lexus 1UZFE engine is about 111-14 years old now and average about 120,000-160,000 miles … Read the rest of the post...

Toyota 4.7L Shortblock Swap for Lexus GS400, SC400 & LS400 (1990-2000)

Is your aged and out dated engine needs a new life?  Why rebuild if you can get a fresh forged build shortblock with more cubic.  We are so proud to be the first to install a Toyota Tundra 4.7 Liter into our Lexus SC400.  Our shortblock is the first and Read the rest of the post...

Change 1UZFE Valve Train From OEM Shim Over Bucket (SOB) to Shim Under Bucket (SUB)

This article is intended to be a roadmap for anyone considering changing their early 1UZ valve train from the OEM Shim Over Bucket (SOB) setup to a Shim Under Bucket (SUB) setup. I have now done this on two early 1UZ’s for two different extreme cases (one which had excessive … Read the rest of the post...

Lexus-Toyota V8 Oil Pump – A Simple Mod That Will Save $250

By reading this article, you will literally save $250.

I have two customers ordering oil pumps.  The one is for an older Lexus SC400 and other is for a new Lexus or Toyota truck and SUV.  The price was huge between the two oil pumps. 

The older Lexus oil pump Read the rest of the post...

Lexus SC400/LS400 PCV Modification For Forced Induction

There are many Lexus V8 owners want to force induce their ride, but beside turbo or supercharger setup.  You will also need other little things to make it work.  One of them would be crankcase ventilation.  In a natural aspirated engine, there are two ventilation opening from the valve covers.… Read the rest of the post...

Lexus V8 LS400 SC400 Intake Airbox Modification For Improved Air Flow

Since this is a question I get PM’d about frequently at Club Lexus… I thought I would make a thread with pictures showing how I have modified my airbox and created more air flow and shielded the under-hood heat.

Note: I must give credit for my inspiration to Peter Scott … Read the rest of the post...

Lexus V8 1UZFE Desktop 2000 Dyno Chart

Compression: 10.4:1

Crank Pulley: 5.5″

Supercharger Pulley: 3.125″

Boost: 7 psi

Supercharger Efficiency: 74%

Intercooler Efficiency: 40%

Redline: 6200 rpm

Displacement: 4.0 liter

Result: With the above variables, the 7 psi intercooler Vortech V2 SQ S-Trim will generate about 380 bhp

This graph is also prepared by Stefan.  Here we … Read the rest of the post...

Lexus LS400/SC400 Battery Relocation How-To

In order to fit the supercharger into my LS400, I have to relocate the battery.  People have many reasons to relocate battery.  Some for weight distribution other for space.  To relocate the battery is pretty simple task, however it will require some money.  There are two ways of do this Read the rest of the post...

Daizen Lexus LS400 Control Arm Bushing Replacement Tutorial

After 14 years since the initial introduction of Lexus LS400 and ES250, most of the suspension bushings are about to wear out.

There are two opinions on replacing the bushings.  The first obvious choice would be OEM replacement.  However, some OEM parts does not come with just the bushings, you … Read the rest of the post...

Wiring the Toyota Crown 1UZ-FE

Many people who install the Crown engine without the automatic transmission chose to wire the engine to the car themselves. 

To make this a little more accessible for all I’ve taken my experience from wiring and then re-wiring my own car, combined it with “KDog’s” excellent wiring Diagrams and some Read the rest of the post...