This project was a complete reverse engineered model of the RB26DETT Engine Internals from the Nissan GTR R34. I chose to reverse engineer this engine since I was in the process of completely 3D printing the Toyota 22re Engine and was disappointed to see that my favorite type of internal combustion engine ( Inline 6 cylinders) was not available to print. I then settled on this engine specifically since it is one of the most iconic engines to come out of Japan.
The way I was able to reverse engineer this is by relying on aftermarket parts, community forums, and Nissan maintenance manual to find and solve the dimension sizes. An example of this would be finding one dimension for the crank rod off of Tomei’s website and then going to another aftermarket vendor to acquire another stock dimension that Tomei did not list. Another technique I used to solve issues I could find online was by using solidworks itself to help solve the problem. An example of this was modeling the crankshaft. The crankshaft it self was one of the most difficult pieces to find dimensions for due to its obscure geometry. Because I only really knew the bearing dimensions throughout the crank, I created an assembly model and constrained my rods accordingly. I then created my crank geometry within this assembly and applied the dimensions I found online. I also had to breakdown the geometry of the lobes and adjust them to match the tolerancing found when the piston is Bottom Dead Center. This process was definitely tedious but ultimately resulted in an outcome I’m extremely pleased with. At the time of writing this, I currently have approximately 65 hours of work into this project. I hope to continue finishing the Block,Head, and valve cover so that I can simplify it for 3D printing. Once this is done and the model works while printed, I hope to share my work online for others to replicate. As
Kaif Dosani 