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After seeing the construction done by Mayhugh, I also decided to build this interesting engine in a slightly larger scale. The pistons of my engine will be 36 mm instead of 1.063 inch (27mm) and everything else will consequently be increased by the same proportion. I have followed and studied...

I found an old maintenance manual for this interesting engine built in Italy in 1930. 2 versions were made, one aeronautical, aluminum casing, one for naval use, all cast iron. It's a very challenging project but I decided to build the airplane version, 1: 5 scaled engine model, I think it is...

Introduction Porsche 917 is a race car developed by German manufacturer Porsche The 917 gave Porsche its first overall wins at the 24 Hours of Le Mans in 1970and 1971. Powered by flat 12 engine, air cooled , of 4.5, 4.9, or 5 liters, The Can-Am variant twin turbo was capable of 1100-1540 Hp

1930 , the Italian Ettore Bugatti built the Bugatti T50 car in France. It was one of the most beautiful cars built in Europe

I bought the drawings over 2 years ago, waiting for my retirement and waiting to learn and improve my engine model construction technique. Now, after building Hovell V4 and Holt 75, I try to make a more challenging project, Demon V8 x 1.5 I decided to multiply all the dimensions 1.5 times to...

Hi everyone after trying the manual grinding of piston rings , on the 2 faces in contact with the seat on the piston with this tool and sandpaper , i did not get a perfect parallelism between the 2 surfaces (red arrows ) My manual tool and sandpaper

Hi everyone About 2 years ago , before my retirement, i bought plans for construction V4 from Jerry Howell. I started work the engine block but i suspended it to dedicate myself to the Holt 75 project because i had fallen in love with the characteristic roar of this engine . Now i resumed...

Hello guys This is my first post, but I've been following this forum for years, to learn the techniques of engine construction .I live in northern Italy just a few miles from the Ferrari factory cars, Lamborghini cars, Maserati cars and Ducati motorcycles.This area in the north Italy is called...

This is my first post, but I've been following this forum for years, to learn the techniques of engine construction .I live in northern Italy just a few miles from the Ferrari factory cars, Lamborghini cars, Maserati cars and Ducati motorcycles.This area in the north Italy is called Motors...