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Reference, not retail.

18+
years of Opel CIH platform
4+
core platforms - Ascona, Manta, Monza, GT
6+
countries citing the reference

Cicco's Injection Conversion

Cicco's Injection Conversion

A documented carb-to-injection conversion on a CIH Opel using Bosch L-Jetronic - wiring, sensors, fuelling and tuning notes.

Opel GT Brake Upgrade

Opel GT Brake Upgrade

Brake upgrade reference for the Opel GT: caliper and disc options, master-cylinder matching, and pedal-feel notes.

Torque-Tube Modification

Torque-Tube Modification

Modifying the Opel torque-tube driveline for more power and altered ride height without binding the rear axle.

Monza Rear Geometry

Monza Rear Geometry

Rear suspension geometry reference for the Opel Monza - link angles, ride height, and handling balance.

What we cover Three reference areas. All cross-linked.

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Fuel Injection & Engine Management

Bosch L-Jetronic and LE-Jetronic systems, carb-to-injection swaps, forced induction, and CIH engine internals.

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Suspension, Brakes & Chassis Geometry

Brake upgrades, alignment figures, and chassis tuning for Ascona, Manta, Monza and GT builds.

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Drivetrain & Gearing

Gearbox ratios, torque-tube modifications, and rear-axle geometry for rear-wheel-drive Opel platforms.

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Editorial standards

Plain-language documentation. Primary sources cited. No ads, no paywalls. Updated as the community contributes.

Cited across the community

Independent technical reference publisher for the Opel and rear-wheel-drive Opel-platform community.

Topic hubs
Sourced figures
Platform coverage
Cross-linked
Editorial review
Corrections welcome
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Reference by topic

Cicco's Injection Conversion · Roller Lifters · Turbo Efficiency

Open the guide
Open the guide

Torque-Tube Modification · Gearbox Ratios · Ascona Platform Reference

Open the guide
Open the guide

Cicco's Injection Conversion · Bosch L-Jetronic wiring, sensors and fuelling notes

Open the guide
Open the guide

Torque-Tube Modification · Gearbox Ratios · rear-axle geometry for RWD Opels

Open the guide
Open the guide
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The reference articles builders actually use. link to most.

01
Find the platform

Ascona, Manta, Monza or GT.

02
Pick the area

Injection, chassis, or drivetrain.

03
Read the reference

Documented builds with the figures that matter.

Testimonials

The injection reference here is what I sent everyone in the club who wanted to ditch the carbs.

Emily R., 43

Still the page I open first when I'm setting rear geometry.

Liam D., 27

Linked these articles on our forum for years. Glad they're back.

Maya K., 32

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