Early Rotary & 1979-85 Mazda RX-7 : Engine Porting & Assembly Tools

 : Engine - Porting & Assembly  Tools : Porting Template Race Exhaust 12A

Porting Template
Race Exhaust 12A *

Part Number: 22211

Price: $32.00

Qty:

Porting Template - Race Exhaust 12A - Detail 1

Addtional Photos - Select to Enlarge

Facebook Share

Porting Template
Race Exhaust 12A *

The Racing Beat "Race" Exhaust Port Templates for all 12A rotary engines allow you to undertake your own exhaust porting efforts.  The race version of these templates open the exhaust port further "upwards", increasing the port timing duration which results in more intake-exhaust overlap and better high RPM performance.

Our Racing Beat laser-cut aluminum porting templates are patterned after our own original master templates. Designed and refined over decades by Racing Beat's legendary engine builder and co-founder Jim Mederer, this exhaust port template gives you a powerful resource to assist you in your engine upgrade project.

Incredibly easy to use, simply mark the template position as instructed, spray the exhaust port area with marking dye, hold the template in position (we use a simple hand clamp or a office paper clamp), and then scribe the new port shape onto the housing. It's really that easy.

Porting Effort
During your porting effort we suggest you stay within the boundary of our template shape. This shape has been designed to yield excellent results for a broad range of engine building applications. However, you can certainly get more aggressive with porting efforts beyond the template line, you must then use your own judgment and expertise as a guide.

Actual template not shown in photo.

* Legal in California only for racing vehicles, which may never be used upon a highway.
  What does this mean? Click Frequently Asked Questions About Emission Laws And Regulations.
Made in the USAMade in the USA by Racing Beat, Inc.

Racing Beat Recommended Accessories:

Complete Porting Tool Kit - Exhaust - Street and Race Porting

Complete Porting Tool Kit - Exhaust - Street and Race Porting

Exhaust Port Modification Tool Kit We've taken the guess work out of selecting the appropriate cutting and grinding tools to undertake your 12A or 13B rotary engine race or street exhaust porting effort.  This exhaust porting tool kit... Complete Porting Tool Kit - Exhaust - Street and Race Porting

Go to Racing Beat Home Page
Select: Go to Shopping Cart