GT1R Pulley Mount Spacer (for ATI Damper)
GT1R billet aluminum dry sump drive pulley spacer for use with ATI Damper
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Frequently Asked Questions About GT1R Pulley Mount Spacer
Is this spacer compatible with the stock R35 harmonic damper?
No. This specific spacer is engineered with the exact bolt pattern and hub register to fit aftermarket ATI Super Dampers only. It will not fit stock or BHJ dampers.
Why is a spacer required for the ATI damper?
When installing a dry sump system, the drive mandrel needs to be spaced out from the damper face to clear other accessories and align perfectly with the oil pump pulley.
Can I use the GT1R BHJ spacer on an ATI damper?
No. While they look similar, the mounting dimensions and hub centric profiles differ between ATI and BHJ manufacturers. You must use the correct spacer for your specific damper brand.
What material is the GT1R ATI spacer made from?
This component is CNC-machined from lightweight billet aluminum. This ensures it adds negligible rotating mass to the crank assembly while providing a rigid mounting surface.
Does installing this spacer require re-balancing the crankshaft?
No. The spacer is precision machined to ensure perfect concentricity. As long as the ATI damper itself is balanced, bolting this spacer on will not introduce vibration to the engine.
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