How the reference works.
An independent technical reference publisher for the Opel and rear-wheel-drive Opel-platform community. We publish reference; we don't sell parts.
Primarily the RWD Opel range - Ascona, Manta, Monza and GT - and the CIH engines and drivetrains they share.
Yes. Every article is free to read. Optional support helps fund restoring the legacy library and publishing new material.
No. We're a publisher. We document builds so you can do the work or brief a workshop accurately.
Yes - contributions are credited and corrections are welcomed. Contact the editors.
The relaunch restores the legacy reference pages that the community has linked to for years, at their original addresses where possible.
Restoring legacy reference pages, publishing new material, and keeping the full archive free to read.
Articles are grouped into three pillars — injection and engine management, chassis and brakes, drivetrain and gearing — plus platform reference hubs. Every piece is tagged to a topic and lists its sources.
Use the Contact page for editorial enquiries, contributions, and corrections. We respond within 3 business days.
Start on Reference Areas or Technical Guides, or browse By Topic for injection, chassis, drivetrain and platform hubs covering Ascona, Manta, Monza and GT.
