#mightyboy

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.

Transform a powerless Mighty Boy with an engine swap

All parts of works are diverted from the heart

Mighty Boy, who remodeled the rear part of the Cervo coupe body into a cargo bed and put it on the market. Many people are still fascinated by its unique character. There are also many things that are used as the basis of modifications, and this is an example that is very neatly put together.

Photography: Hijiri Kamimura

AUTOGEL Alto Works Race Harmonic System/Alto Works Bumper & Meter/Brid Bucket Seat/Industrial Boost Gauge/CA72V (Alto Works) Engine & Mission/Suzuki Sport Turbine/HKS Blow Off Valve/Ultra Silicon Plug Cord / Intercooler for HKS C.D. City Tarpo II / Earl's Oil Cooler / Trust Levik II / NGK Racing Plug / Homemade Piping & Strut Tower Bar & Muffler / Air Cleaner for Moped Scooter

● Modified parts

Fully modify the interior without discomfort

The interior of this car shows a very high level of finish. Originally, it can be said that it is the extreme of the normal stage (the so-called extreme of cheapness of minicars), but the interior is upgraded without discomfort. One of them is the installation of BRIDE's leather packet seats, but if you just put them on, you will probably feel a sense of discomfort. However, it does not create a sense of incongruity as it seems that the lining has also been touched. The same goes for the instrument panel, and it's normal to add additional meters and other auxiliary switches to make it a mess, but the basic shape of the instrument panel is not compromised, and the meters and switches are skillfully built-in. The interior is clean and tasteless. The finish of these works (performed by the owner himself) is also wonderful, and it is hard to believe that it is the interior of Mighty Boy.

A chassis that matches the increased power

Since a car with only 29 horsepower will be equipped with an engine that boasts more than double the power, it is an absolute requirement to create a chassis that can handle it. This car is also compatible with the front and rear suspension by diverting it for Alto Works. Of course, it is not normal, but a vehicle height adjustment type is incorporated in the front. In addition, only the shock can be used for the rear, but since the spring is a plate panel, two more commercially available reinforced plate panels are used to withstand intense driving. In addition, in order to increase the rigidity of the front body, it is equipped with a self-made strut tower bar, but it is made to look like a commercially available product.

Koichi Ichikawa Commitment to Modification

I have finished the Mighty Boy that I bought for 80,000 yen 3 years ago. Some of my friends also ride Mighty Boy, so we all make various parts and specifications. Even with this car, we went through a lot of trial and error and arrived at the specifications we have now.

First of all, with regards to the engine, we repeatedly tuned the normal F5 A as a base, increasing the displacement while keeping it NA, but there were some things that were difficult in terms of power, so we created and transplanted the Alto Works one. calm down. The one currently installed is a 550cc engine, which is also FSA), which was installed in the first generation Alto Works. Instead of installing it as normal, we installed a Suzuki Sports turbine, diverted the intercooler for the city turbo, and made our own intake and vibes using SUS304 to connect them. and response.

Overcome Normal's biggest weakness

The Mighty Boy has a unique body style and lightness that is popular with some enthusiasts, but the biggest bottleneck is the extremely low engine power. However, even though it is a completely different engine, since the same Alto Works engine appeared, swapping that engine with Mighty Boy has become one of the standard modifications. However, there is no such thing as being able to swap easily with bolt-on. The swap is not only for the engine but also for each mission, but the mount position is different for both. Also, the shape of the subframe to be mounted is of course completely different. The engine can be managed by rearranging mount bushes, etc., but there is nothing we can do about the mission. After all, it seems that the mount position must be decided after cutting and pasting. In addition, remounting such as CPU wiring and fuel pump replacement takes considerable time and effort.

Of course, the suspension has also been modified to match that. With the current specs, the front part is completely transplanted from the original Alto Works parts from the brakes, etc., and combined with the suspension for the N1 and N2 races of a manufacturer called Auto Jewel. The rear is a combination of a two-ply reinforced spring and an Auto Jewel shock. All of these, including the engine, have been certified.

There are not many other examples of cars that do this. The reason is that the shape of the rear tire arch does not match the side. Surprisingly, this car uses the technique of sheet metal fenders to match the shape. In addition, the front and sides are also finished as if they were installed from the beginning by paying full attention to the angle of installation. The appearance is also a misappropriation of Alto Works genuine spoilers and works. It is modified by installing the front. It's not uncommon to see cars that use the same color scheme, but since the rear wing is the same as the Alto Works, the Alto bumper spoiler and side steps are also used for a moment.

How to wear aero for other car models?