This system uses only two main components. A GM HEI 5 pin control module and a pressure switch. I have used this system on both of my custom turbocharged cars and it works well. A Bosch fuel injected 1980 Fiat 2000 Spider and a Weber carburated 1987 Yugo 1500 cc.
GM HEI 5 pin control module (e.g. 1980 Oldsmobile Toronado V8)
#15 Pressure switch with at least a closed and normally open contacts (e.g. Honeywell)

Piece of aluminum block for control module (Lowe's Hardware metal stock section)
Heat sink grease (Radio Shack)

Other items: vacuum hose, nipple, tee, metal bracket, brass tee, etc. if bracket is desired.

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This project began just over two years ago when my wife decided she wanted to buy an old Volkswagen Beetle to get around the dirt roads of the Lake Region of Rio de Janeiro, where or beach house is located. I started documenting this process in a forum topic "Steampunk Volkswagen anyone?" and now two years later, I'm finally ready to reveal to the Instructables community the results of the largest project I have documented to date:
Behold the Steampunk VW Bug, or in Portuguese, "Vaporpunk Fusca"!
I am not a mechanic! And it's quite possible that many of the things I did to this car might not be up to code anywhere in the world! The reason we bought this particular car is that for the most part it was mechanically and electrically sound, so there is very little in this 'ible regarding the mechanics of a 1975 Volkswagen Beetle. Most of what was done to this car is cosmetic, and had no impact on the actual functioning of the engine or electrical system.
And a note to classic car enthusiasts: Some may cringe at the makeover I gave this car, and to those I point out; This car was a workhorse, bought from a bricklayer and nearly run into the ground for more than a quarter of a century. To continue the analogy, there were two paths this workhorse could have gone down - one led to the glue factory, and the other the stud farm. We have given this car a new lease on life, in a quiet little beach town, where it will spend it's retirement shuttling a small family to the beach in style a few months out of the year, and spend the balance of it's time being pampered and protected from the elements. Was it possible to restore this car to it's 1975 original condition? Maybe, with unlimited time and an unlimited budget, neither of which I had. So I did my best to make this car functional, attractive and unique.
And some steampunk purists may object that this doesn't really qualify as "steampunk" since it doesn't run on steam, etc. etc. Well I did my best within reason to add wood and bronze or brass where there once was chrome and plastic. And in the DIY and unique/one-of-a-kind/counter-consumerist traditions of the genre, I think it certainly has strong steampunk elements and influence. But yeh, it's also heavily influenced by 70's California surf culture. So maybe it's the birth of a new genre: "Surf-punk"?:-)
A note about terms:
The Volkswagen Beetle was originally introduced in Nazi Germany in the 1930's and literally translates to the "People's Car." When it was introduced in Brazil in 1953, this term was difficult to pronounce for Brazilians, so somehow it became know as the "Fusca." ("Folks car"/"Fus-ca," maybe?) While the last German manufactured model rolled off the assembly line in 1978, in Brazil the Fusca was still produced well into the 1990's and new parts are still being manufactured today. As a result, the Fusca is still a very popular car in Brazil, and many can still be seen chugging down the highways.
And in Portuguese, the translation for "steampunk" is "vaporpunk." Thus was born the "Vaporpunk Fusca." For a great resource for all things Fusca related, check out the awesome blog: