Radium Engineering Insulating Spacer 11Mm | Universal (14-0711)

Eleven millimeters of phenolic is the difference between manifold heat and cool fuel.

The Radium Engineering Insulating Spacer, 11mm is the thermal break from Radium's rail architecture, sold individually: a press-fit phenolic spacer isolating a fuel rail from the hot aluminum it mounts against, the same 11mm spacer Radium's rotary secondary rail kit uses for Xcessive 4-port manifolds. Service replacement and custom-install stock alike.

What You'll Feel

• Manifold heat kept out of the fuel where hot-soak vapor problems start
• The correct spacer height restored at rail service time
• Custom rail installs finished with proper thermal isolation instead of metal-on-metal

Features

• 11mm phenolic insulating spacer, press-fit style
• Matches the 11mm spacers in Radium rotary and rail kits
• SOLD INDIVIDUALLY

The Details

Phenolic conducts heat an order of magnitude slower than aluminum, which is the whole job: the rail bolts through the spacer, the mounting stays rigid, and the thermal path from manifold to fuel breaks at the interface. On Radium's 13B-REW secondary rail, the 11mm height specifically suits the Xcessive Manufacturing 4-port intake manifold, while other installations select spacer height to set rail standoff per the injector geometry. Count one spacer per mounting point and order accordingly.

Kit Includes

• 1x 11mm phenolic insulating spacer (14-0711)

Applications

• Radium fuel rail installations using 11mm spacer height (incl. 13B-REW secondary rail on Xcessive 4-port manifolds)
• Custom rail installs needing thermal isolation