An old Suzuki Mightyboy turbo build article. Article is from a magazine from the early 90s.
The unique tuning is appealing
ALL THAT'S K
I won't lose to 660!
Mighty Boy TURBO by private tuning
550cc owners may be feeling a little sad with the arrival of the 660. But when it comes to tuning, the 550 is still very interesting. This time, we'll introduce you to the super energetic Mighty Boy, with its highly original tuning!
You can't judge people and cars by appearances...
At first glance, he looks like an ordinary guy, but when he gets behind the wheel on the circuit, he turns out to be a crazy fast racer... That's the kind of story you hear, you can't judge a person by their appearance. The same can be said about cars. This guy, MightyBoy, is a good example of that.
At first glance, it looks like a normal Mightyboy with a slightly large air intake.
When you drive it, full boost kicks in at 2000 rpm, and it accelerates with such force that you'll think, "Hey, wait a minute."
And it was no surprise. The engine in this car is an F5A with an intercooler and turbocharger. Moreover, the F5A has an increased displacement of 610cc, so it has a lot of torque even before the turbo kicks in. This engine hits full throttle at 2000rpm and keeps going all the way to 8000rpm, making it no ordinary engine.
my car. So tune it yourself
To explain in more detail about the tuning done by Mightyboy, the engine has been enlarged to 610cc by widening the bore to 65.5mm. A Tomei high compression piston is installed, and the compression ratio is about 9.0 with two Cook Sports(?) gaskets. The valve springs are normal.
The steering wheel is a Nismo Sunny wheel, and this is where you can really see the owner's personality.
The turbo system is equipped with a Mira TR-XX turbine and intercooler. The boost pressure is controlled by a homemade EVC at Lo (0.73kg/cm²) and Hi (1.2kg/cm²).
The levels can be switched by a switch on the shift lever. Other original features include a turbine cooling radiator and a fuel cooler mounted at the very back of the bonnet, making this an engine bay full of the owner's ideas.
Currently, the horsepower is kept at around 60hp, but this is set up with an emphasis on torque, considering that it will be used for daily commuting. This is still plenty fast, and it is apparently faster than the standard Works.
The suspension is in keeping with the power.
Naturally, the suspension has been strengthened to match the increased engine power, but this too has been tuned to the owner's own unique style, which is interesting.
The front shocks are standard, while the rear shocks are Kawasaki Z750FX (S&W) for motorcycles. The front springs are standard Grand Civic springs, while the rear springs are standard Alto springs. This suspension works really well, and it's great when cornering with the 13-inch Potenza.
It provides firm support with just the right amount of roll.
It's surprising that most of these tunings are done privately by the owners themselves. Tuning with a tuning kit specified by the manufacturer is easy and there's no such thing as a bad result. But a car that you build by trying out different things like Mightboy does is something you love like a part of yourself, and there's a joy in having a car that's unique and yours alone. I'd recommend this to anyone who's confident in their mechanics.
PIC CAPTIONS
▲The rear suspension fits the Z750 shock perfectly. The idea behind this is amazing.
▲This is the Lo/Hi switch for the homemade EVC. The main unit is located in the engine compartment.
▲▼The big air intake (for AE92) was not just for show. It covers the protrusion of the intercooler and also takes in a large amount of air to the intercooler.
