Purchase of the year - very satisfied :) On 26 Dec 2023 I ordered Stirling Engine Model with Electricity Generator and Bluetooth Singing Tesla Coil in beautiful blue color. After 12 days, I recieve good protected package, with no damage, delivered direct to Switzerland. Perfect toy, no only for kids but also for engineers, like me :) , works perfect as described. Highly reccomended, I will definitely come back. Thanks :)

44cc Small block Hottie V8 engine This is my second engine directly from CISON. My first was the V2 15.7cc Harley Davidson Engine and now the Chevy small block V8. Both, I am very pleased with because both came directly from the manufacturer in China and the price compared to buying them in the U.S. is much cheaper directly from China. Customer service is absolutely great! I hope you are lucky enough to speak with Lucas! You can usually get a response very quickly. My experience has been within 24 hours! I first contacted CISON about a Hall sensor that went bad on my V2 engine. I had the sensor in my hand about 10 days later straight from China. My second experience was for instructions to assemble the V8 in English. I was immediately sent assembly instructions in Chinese that Lucas said would be converted to English and sent to me later. I actually converted the instructions to English and sent them back to CISON before they could do it! I simply used adobe to convert the document to word format in Chinese and then converted Chinese to English! They were very appreciative to me beating them to the punch. I am still in the process of assembling the V8 and will post videos to YouTube immediately when finished. These model engines are a real work of art and very mind blowing! Today I demonstrated the Harley Davidson engine to automotive students at my school and they were totally blown away that it actually runs..... myself and the instructor showed the partially assembled V8 engine to the students and they can't believe something that small and realistic actually work and runs! They wanted to hold the block! The price you pay for these engines is small compared to the WoW!!! you get from future automotive technicians. My plans are to purchase another one and donate it to the school. These things are great conversation pieces, fun to work on and even great to just look at! I love my purchases from CISON because they're trustworthy, reliable and better to purchase from than local. Stay tuned for my first videos on YouTube that will demonstrate problems, fixes and downloadable instructions in English. My first video will show what's in the box? Assembly and then running! Stay tuned...... I'll be back!

Successful Christmas because of enginediy! My mom really wanted to find something for my son to build. He told her he’s interested in doing something with his hands for a career vs “going to college”. My husband is a mechanical engineer and their brains work pretty similarly. I was so happy to stumble upon enginediy.com. We decided on a small one as he is only 12. He built it pretty quickly and LOVED getting it to run successfully! It’s a combustion engine and we already need to go buy more wick for it! I’m glad he will have something to set on his desk for a very long time.

Fantastic Fantastic! This is the 4th project I've purchased from EngineDIY and I have enjoyed each and everyone. The Rotary 5 Cylinder, the Fighter Jet Engine, the V8 Flat Plane Crankshaft Engine and now the Turbofan Jet Engine. This particular model project is made from all metal parts with precision fitment and provides 20+ hours of assembly enjoyment. All of these projects are in lighted displays in my home and are enjoyed by friends and family. Especially noteworthy is all these models "run" by rechargable battery. Watching pistons, gears, propellers and machine parts move is awesome! I've been purchasing from this outfit for 4 years and look forward to future kits.

Pleasure to do buisnes… I have had the pleasure to do buisnes with ENGINEDIY several times, never had any problems, very nice products and great service.