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Belfab Supertech pistons
Price includes 4 pistons and rings
These pistons are made to Belfab specs and are a tiny bit different than the same Supertech part numbers available everywhere else. The bore clearance and taper are optimized for the Miata block based on Belfab's extensive experience building Miata race motors.
The whopper 85.5mm pistons deliver 1952cc on a standard crank but require an oversize head gasket like the Maruha available from Ocean at Chikara Motorsports. Its not recommended to run more than about 300whp with the 85.5's as the cylinder wals get quite thin and are less able to take the abuse. The 85.5's are ideally suited to a high ouput N/A or lower boost motor.
DEALERS
Miata race alignment
In car video 1
In car video 2
Miata Lap Records
99 Miata Rental
Budget track day project: '91 Miata 1.8 swap
Charles Ng - sponsored driver
Nitto NT01 tires
949Racing's Tech links
OCINO