My Summer Car Build 12922607 May 2026

For My Summer Car build 12922607 (released December 10, 2023), there are no official patch notes detailing specific new features [10]. This build consists primarily of internal file changes across various game depots rather than a documented list of additions or "draft features" [10].

1. Engine Assembly – The "12922607" Adjustments

• Camshaft Gear: In this build, the camshaft gear alignment is visually offset. Do not trust the white marker line. Count the teeth manually. Set it to 17 teeth clockwise from TDC (Top Dead Center), not the usual 15.
• Head Bolts: Tighten them to 23Nm, not 22. The physics engine applies a phantom 1Nm of loosening on game load.
• Oil Filter: Screw it on until you hear two clicks. One click is a known false positive in this build.

Abstract

• Normal stable version: Target AFR 14.2
• Build 12922607: Target displayed AFR 10.5 Yes, you read that correctly. Tune your carburetor screw so the gauge reads 10.5 at warm idle. If you tune to 14.2, your engine will run at an actual 18.2—lean enough to melt a piston in 3 minutes of highway driving.