Gasket t=0.5mm FA20 Toyota 86/Subaru BRZ

Gasket t=0.5mm FA20 Toyota 86/Subaru BRZ
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  • 23001-AT002
Code No. 23001-AT002       Opposed Bead... mehr
Produktinformationen "Gasket t=0.5mm FA20 Toyota 86/Subaru BRZ"

Code No. 23001-AT002

 

 

 

Opposed Bead Stopper Type Metal Gasket for the FA20 engine of 86/BRZ provides higher bore sealing durability than a stock gasket.
2 types of the gasket are available. One is t0.5 increased compression ratio type for an NA engine (ε12.6←12.5, supercharger installable, Endurable approximately 300ps)and another type is t0.7 high engine output type for a supercharged engine (ε12.4←ε12.5, Endurable approximately 600ps with supercharger)

 

 

 

 

■ Feature
With t=0.5mm gasket, NA engine's compression ratio increases compared with the stock!

The durability of the bore seal of this gasket t=0.5mm for NA engine is improved, and the compression ratio increase compared with the stock that makes this gasket ideal for one-make race. (This gasket can be installed to a supercharged engine.)
Compression Ratio
Stock Thickness: t=0.6mm (ε12.5) HKS Thickness: t=0.5mm (ε12.6)

Maintain a high seal with high pressure!

Both types are endurable against high engine output. Stopper structure of the bore seal is separated type so it prevents leakage even under high gas-pressure at high engine output.

Contact surface pressure is improved!

Special coating was applied on the head side and cylinder side to improve sealing performance when tightening the bolts.

Bore seal pressure was confirmed in figures. (See the diagram below.)

 

(Contact Surface Pressure Measurement)

 

 

(Structure Comparison)

NA t=0.5

* Comperd to stcok, bore seal is independent and has higher seal surface pressure,
 therefore same amount of stopper, bore seal is stronger.
* Thinner than stock and compression ratio is 0.1 higher

 

Supercharger t=0.7

* Comperd to stcok, bore seal is independent and has higher seal surface pressure,
 therefore bore seal power is much stronger.
* Thicker than stock and compression ratio is 0.1 less than stock

 

Stock t=0.5

* Bore stopper is similar to the other seal and ther surface pressure polymerize,
 it has lower seal ability than the independent type

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