"TCP" rotor housings?

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06-18-2008, 07:19 PM

j9fd3s

Senior Member

Thread Starter

Join Date: May 2002

Location: California

Posts: 22,465

so to make a long story long, i was playing with a 70-73 rotor housing on saturday, and i noticed it said "TCP" on it. on sunday i happened to look at MY collection of 70-73 rotor housings and ONE says TCP, the other 4 do not.

WTF is TCP?

jeff20b really really really really really wants to know!

06-19-2008, 01:52 PM

Tom93R1

Senior Member

Join Date: Nov 2002

Location: PHX

Posts: 265

Your questions are too difficult..

But I googled TCP and found:

http://www.rotaryart.uk.com/acatalog/used_...parts_cars.html

Quote:

1968-1973 Mazda R100/Familia Rotary

0866

The final member of the 10A family was the 1971 0866. This variant featured a cast-iron thermal reactor to reduce exhaust emissions and re-tuned exhaust ports. The die-cast rotor housing was now coated with a new process: The new Transplant Coating Process (TCP) featured sprayed-on steel which is then coated with chrome. Gross output was 105 hp (78 kW) at 7000 RPM and 135 Nm (99.5 ft.lbf) at 3500 RPM.

Applications:

1972-1974 Mazda RX-3 (Japan-spec)

Maybe thats the same TCP, does the inner surface look different than the standard sleeve?