Goopy Performance 3mm Apex Seals for 13b Engines

NOT ALL 13B ENGINES RUN 3MM APEX SEALS, PLEASE CHECK YOUR APPLICATION BEFORE ORDERING.

Thanks to our close association with the new UK distributor of Goopy Performance products Essex Rotary can now offer this superb proven more durable alternative to the standard Mazda Apex Seals.

Goopy Apex seals have become renowned for their reliability by withstanding up to 50psi in Drag Racing and still not failing and have even withstood detonation that the Mazda Apex seal could only dream of.

This makes these High Performance Apex seals not only ideal for any N/A, Turbo or Supercharged 13b but also ANY standard or tuned 13b engine running 3mm seals .

Goopy Performance recommend .0015″ of clearance between the apex seal and the rotor slot for all applications, boosted or naturally aspirated.

3 mm 13B Goopy Apex Seals are .115″ (2.921mm) thick, and you should be able to slide a .0015″ feeler gauge into the rotor apex slot with a new apex seal.

Goopy oversized 3 mm seals measure .118″ + / – .001″  (2.997mm  +/- 0.025mm). If your rotor slot measures .018″ – .020″, you may benefit from our oversized 2 mm seals which will allow you to re-gain the .0015″ suggested clearance.

Also available for the RX-8 engines these seals can be included in your Essex Rotary engine rebuild upon request at a small additional cost.

Sold at a set of 6 complete seals these will easily replace the stock apex seals found in some factory 13b engines or builds with 3mm machines slots.

Due to their increased popularity please allow up to 21 days for delivery