Infiniti Q45 Vs. Lexus LS400

 

 

VH45DE 1UZ-FE
Type

 

   

DOHC 32-Valve V8 with aluminum-alloy block and heads with molybdenum coated pistons DOHC 32-Valve V8 with aluminum-alloy block and heads.
Displacement

 

4.5 Liters 4.0 Liters
Horsepower

 

278 @ 6000rpm 250 @ 5600rpm (SC400)
Torque

 

292 @ 4000rpm. 260 @ 4400rpm (SC400)
Bore x Stroke

 

93 x 82.7mm
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Lexus AEM Variable Voltage Fuel Pump Control

With a few wiring and AEM configuration changes, I have been able to implement the variable voltage control that the OEM Supra ECU provides for the fuel pump. So what’s the advantage in this? Automotive OEM’s and racers know that excessive fuel circulation at idle and low engine load causes … Read the rest of the post...

Street Tuner Guide For Adaptronic E420C ECU

The following information is given in good faith and is by no way intended to be the definitive guide for street tuning your vehicle.

The writer of this article has no affiliation with Adaptronic and takes no responsibility for the accuracy or results obtained by the information given. Altering any … Read the rest of the post...

How to Replace or Fix a Transmission Oil Pan or Gasket Leak

This is something very simple to fix but its also a pain when you go to your friend’s house and park at their driveway and leave some oil marks.  Its an embarrassment but this need to be fix.  Otherwise your friend would never want to invite you back again.  This … Read the rest of the post...

2002/2003 Toyota Tundra Greddy E-Management Wiring Diagram

Tundra 02/03 (2UZFE) E-Management Wiring

Data By Bloodypulp

Tundra ECM 2003/2004 E-manage
Function Connector Pin Wire Voltage Pin Wire
Power 9 – 14V Rotary Switches
B+ E3 1 White/Blue + 13 Red 8 — 2 — 4 5 alternate
Ground
E1 E5 1 Brown 12 Black
Tachometer Pulse
TACH
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1993 Lexus SC400 Vehicle Parting and Used Parts

I have this 1993 Lexus SC400 with 160k miles.  This car is being dismantle for parts.  Please email me if you need any small parts.  Large part I prefer local pickup:

Parts not available on the vehicle are:

 • Hood
• Front Bumper
• Front Bummer Support Beam
• Complete
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Lexus-Toyota V8 Private Forged Pistons Group Buy

We are very luck to have special relationship with Ross Pistons to have 1-3UZFE pistons made.  The pistons are forged with strong pins along with performance rings.  There has been a myth that Lexus put in forged pistons in their 1UZFE.  I have a 1990 LS400 and the pistons were Read the rest of the post...

Megan Coil Over for Lexus SC400, LS400, GS300/400/430/460

NOTE: If the vehicle is equipped with Air-Ride system, installing the suspension might turn the Stability control on. THIS WILL NOT AFFECT YOUR RIDE QUALITY.

The Street LP Series is our new Luxury Package, using similar specs & set up design as Street Series, (not too aggressive) offering spring rates
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Lexus-Toyota 1-3UZFE Tuning with Split Second FTC1 (R4 Controller)

Split Second FTC1 Tuning with Lexus GS400, SC400

In this article I will try to show step by step on the Split Second FTC1 piggy back computer with the R4 Controller (R4 is the software used by the FTC1.  After you have installed the unit, its time to tune your … Read the rest of the post...

Lexus-Toyota V8 Turbo/Supercharger Oil System

This article is to give detail instructions on how to obtain oil from and to for either supercharged or turbo system.  Oil is essential in both lubrication and cooling.  One of the best and easiest way to get oil from the uzfe (all the Lexus-Toyota V8 engines are the same) … Read the rest of the post...

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.  This saving didn’t come overnight. 

I have two customers ordering oil pumps.  The one for older Lexus SC400 and other for the new Lexus or Toyota truck and SUV.  The price was huge between the two oil pumps.  The older Lexus Read the rest of the post...