Building a Stainless Exhaust: Mandrel Bends, V-Bands and Tube Sizing

The Partsman

A fabricator's starter guide to stainless exhaust - 304 vs 409, mandrel bends, V-bands and flanges, and choosing tube diameter.

Silicone vs Rubber Hose: A Radiator and Intercooler Hose Guide

The Partsman

Why silicone hose outlasts rubber for coolant and boost, how to measure bore and bends, and where each type belongs.

How to Choose a Fuel Pump for Your Build (LPH vs Horsepower)

The Partsman

How to size a fuel pump in LPH for your power goal, in-tank vs external, E85 considerations, and the supporting parts you need.

Fuel Pressure Regulators Explained: How to Set Base Pressure

The Partsman

What an FPR does, vacuum/boost reference, EFI vs carb base pressures, and how to set base fuel pressure on your build.