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These collection of articles are all written in house unless otherwise noted. They have been written to be the most unbiased and accurate as possible. Mistakes and mis-information are inevitable so if anything incorrect is found then please send a message. Contributions are welcome as are suggestions for further articles. Click on the contact tab to do so. Click on each icon to read the individual articles.

Note: Many articles are still being written/edited/uploaded. It takes an obscene amount of work to put together a site like this one so it will take time.

Workshop Manuals, General Information & Wiring Diagrams

There is a lot of information available across the internet but it can be hard…

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3SGE Beams conversion guide

An increasingly common conversion is to fit a 3SGE Beams engine into a Corolla or…

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20v 4age- Intake Adapter To Suit Nissan GTIR Plenum Chamber-47

20V 4AGE Engines and Aftermarket ECU’s

Covering some of the common and smaller pieces of information covering the interfacing of aftermarket…

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Installing a Hyundai radiator into an AE86

With many original sprinter radiators reaching their limit in age and cooling capacity owners often…

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16v 4agze- Piston Set 81.5mm (+0.5) With Rings.-902

Calculating Compression Ratios

Many changes to the components or state of some parts in an engine will affect…

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20V 4age- TRD Head Gasket - 0.8mm-0

4AGE Compression Ratio Chart

This chart shows the theoretical resultant static compression ratios before and after certain modifications. As…

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Interchangeable Wheel Studs

The standard wheel stud on a AE86/AE71/KE 70 is a 12mm with a 1.5mm thread…

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Multi-link Rear Suspension Tuning

Despite the visual simplicity of a solid rear axle there is a huge amount of…

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Difference between Silver and Blacktop 20V 4AGE Engines

This is a guide for making a educated comparison between the two 20V engines with…

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Toyota A series Flywheels

This is a listing of which flywheels where originally matched to the A series of…

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Working with the VVT on a 4AGE 20V Engine

When Toyota went to the 20 valve engine from the 16V it introduced the first…

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1nzfe / 2nzfe – Ignition Coilpack (single)-0

Coilpack Information Guide

Working with coilpacks This article is about use of coilpacks also known as COP's (Coil…

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Throttle Linkage Kits To Suit 4age 20V Throttles-714

Intake Tuning Guide for Multiple Throttles

For people with multiple throttles the intake system length is somewhat easily changed in length…

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20v 4age- Intake Adapter To A Pipercross Combined Filter-192

20V RWD Conversion Parts List

Many times we have been asked "do you guys sell a complete conversion kit to…

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20v 4age- Distributor Cap Relocation Kit-749

Converting a 4AGE 20V to Rear Wheel Drive

20 Valve engine is increasing in popularity as the choice of engine in rear wheel…

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Spigot Bearings

All about the use and service of a spigot bearing in a Toyota A series…

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Relay Upgrade for a Starter Motor

If your car has a good battery but still makes a clicking sound instead of…

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Gearbox Adapter Kit: 4AGE / 7A To J160-S (3sge Beams) -828

J160 conversion and modification guide

The Toyota J160 / Aisin AZ6 gearboxes are lightweight but yet are still quite strong…

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Gearbox Adapter Kit: 4AGE / 7A To J160-G (1GFE) -861

J160 gearbox conversion guide

Using various components supplied from our business it's quite straightforward to convert a vehicle with…

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R31 Diff into AE86 Conversion

A fairly common upgrade for RWD Toyota owners is to fit the differential from an…

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