Tech Articles

Kelford Cams for B58 and S58 Engines: Precision...
When it comes to extracting every bit of performance from BMWâs modern inline-six powerplants, camshaft choice is critical. Whether youâre building a high-horsepower street car, a dedicated track machine, or...
Kelford Cams for B58 and S58 Engines: Precision...
When it comes to extracting every bit of performance from BMWâs modern inline-six powerplants, camshaft choice is critical. Whether youâre building a high-horsepower street car, a dedicated track machine, or...

From Forging to Finish: How Manley Performance ...
When it comes to building a reliable high-performance BMW engine, every component mattersâand the connecting rod is one of the most critical links between raw power and real-world results. Thatâs...
From Forging to Finish: How Manley Performance ...
When it comes to building a reliable high-performance BMW engine, every component mattersâand the connecting rod is one of the most critical links between raw power and real-world results. Thatâs...

Why Racing Oil Doesnât Belong in Your Daily Driver
You might think if it works for a race engine, it must be better for yours too. After all, racing oils are built to survive wide-open throttle, big RPMs, and...
Why Racing Oil Doesnât Belong in Your Daily Driver
You might think if it works for a race engine, it must be better for yours too. After all, racing oils are built to survive wide-open throttle, big RPMs, and...

Arias Piston Installation Orientation
How do you determine the correct installation orientation of an Arias piston? How can you tell the intake side from the exhaust side? For BMW engines, the key is inside...
Arias Piston Installation Orientation
How do you determine the correct installation orientation of an Arias piston? How can you tell the intake side from the exhaust side? For BMW engines, the key is inside...

Diagnosing Manual Gearbox Issues: What to Check...
Manual transmissions are known for their durability and driver engagement, but even the toughest Getrag or ZF gearboxes can run into problems. If your manual gearbox is becoming hard to...
Diagnosing Manual Gearbox Issues: What to Check...
Manual transmissions are known for their durability and driver engagement, but even the toughest Getrag or ZF gearboxes can run into problems. If your manual gearbox is becoming hard to...

Crankshaft Failure: How it Happens and How to P...
Why Do High-Performance Crankshafts Fail? Itâs Not What You Think When someone invests in a high-performance crankshaft, itâs natural to assume itâs nearly bulletproof. After all, these components are built...
Crankshaft Failure: How it Happens and How to P...
Why Do High-Performance Crankshafts Fail? Itâs Not What You Think When someone invests in a high-performance crankshaft, itâs natural to assume itâs nearly bulletproof. After all, these components are built...