So you want to buy a GTO?
A few pointers to help you in the right direction when going to buy your and hopefully to help eliminate any heartache and financial loss. Here are the sections covered in this guide:
- Introduction
- The Engine
- The Bodywork
- Active Aeros
- Inside The Car
- Suspension & Steering
- Transmission
- Road Test
- Point of Advice
- Modifications
The Sumiyaka Guide to Buying a Modified Mitsubishi GTO/3000GT
This guide is not a guarantee that the modifications on any particular car will work together or have been installed correctly, but it will endeavor to give you an understanding of what each modification does and why it may or may not be needed, and hopefully give you enough information to spot something that isn’t right.
- Foreword
- First, the Basics
- Serious Modifications
- Very Serious Modifications
- Abbreviations and Terms
Why it is important to have your injectors serviced
Below are 2 video clips of a set of injectors removed from a customers car with 78,000 miles showing on the clock. The car had failed the MOT on emissions and had also been previously investigated at another garage for high knock count at moderate boost levels, but the cause could not be established so the boost had been turned down. In the first video we see the injectors on our test rig just as they were removed from the car. You will see that the spray pattern is poor on most of the injectors but some are far worse than others.
In the second clip you see the same set of injectors after ultrasonic cleaning and servicing. In this clip you will see all injectors have an even spray pattern and flow, with perfect fuel atomisation and correct spray pattern. Following re fitment into the vehicle the car easily passed the MOT emissions test and all previous knock had gone.
Beware of aftermarket injectors
The video clip below shows a brand new set of 680cc injectors on our test rig. As you will see the spray pattern is good and the fuel delivery is near perfect with the base pressure set at 3 bar. Watch what happens when the fuel pressure is raised to 3.8 bar. As soon as the fuel pressure reaches 3.8 bar the injectors shut off. Just before they shut off (difficult to see in the video) the flow drops dramatically and he spray pattern changes. The base fuel pressure at atmospheric pressure on the GTO is 3 bar, so with only 0.8 bar of boost these injectors would have caused very serious engine damage.
Always have your new injectors checked before fitting; it might just save you a lot of money!
