PRODUCED
A selection of components produced through the dSeiki process — from precision valvetrain to reverse-engineered suspension hardware. Every part below started as a requirement; it left as a verified, documented component.
High-cycle fatigue-resistant dual-wound valve spring in OEM-grade Cr-Si wire. Custom designed to suit a specific cam lobe profile and valve mass — not approximated from a catalog.
Fully assembled crankshaft showing assembled helical gear, roller main bearing, and finished rod journals. Every dimension was derived from engine architecture — bore spacing, rod length, main bearing housing — and adjusted for racing where needed. The end result is a crankshaft which is stiffer, lighter and more robust.
High-performance forged aluminum pistons with valve reliefs, lightweight skirts, and precision ring land geometry. Crown profile and compression ratio engineered to the specific combustion chamber, fuel, and motorsport specific requirements of the application.
Custom connecting rod engineered to bore spacing, stroke, and power output targets. Offset small-end design accommodates specific engine geometry. Beam section, big-end and small-end geometry all application-specific — designed for the targets that the client motorsport program demanded.
This Porsche 935 front upright which was identified with a flaw during routine inspection. dSeiki captured the geometry through 3D scanning, processed the point cloud data into a clean surface model, and produced a full CAD and drawing package ready for 3D printing and production. The three images below show the complete reverse engineering workflow — physical part to finished digital model. The client was in a hurry to meet a race obligation, so the work below was expedited in only 8 days- true race pace example of a real race part.
Part mounted on scanning turntable with photogrammetry reference dots. UV-assisted scanning captures full geometry including undercuts and complex cast surfaces.
Scan data processed into a surface mesh. Engineering analysis identifies critical dimensions, datums, and features requiring reconstruction to drawing standard rather than scan approximation.
Clean parametric CAD model of the Porsche 935 front upright — fully dimensioned, ready for 3D printing or casting, then finish machining to achieve the final part. The client now owns engineering records that were never previously available, and can utilize manufacturing methods which weren't even invented back in the day.
Three additional components reverse-engineered for the same Porsche 935 restoration — crank pulley, alternator pulley, and idler pulley. Produced as a matched set with consistent alloy grade and surface finish.
