RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   Single Turbo RX-7's (https://www.rx7club.com/single-turbo-rx-7s-23/)
-   -   Can a Aluminum downpipe be used on a RX7?????????????????? (https://www.rx7club.com/single-turbo-rx-7s-23/can-aluminum-downpipe-used-rx7-790947/)

BLUE TII 10-12-08 12:40 AM

A fellow racer showed me his header off his old 1.6L Miata engine he swapped out to 1.8L.

He told me it was ceramic coated aluminum and I did not believe him; until he took out his pocket knife and carved off a section from the inside where he had ground through the ceramic when port matching the flange. It was also suspiciously light.

So yes, a thin coating of ceramic really does work as a thermal barrier to exhaust and combustion temperatures whether it is on a piston, combustion chamber facing or exhaust pipe.

If ceramic thermal barrier coatings (commonly called TBC) didn't work they would not bother plasma spraying all combustion surfaces of turbine engines.

Here is a link to a WIKI article on TBC
http://en.wikipedia.org/wiki/Thermal_barrier_coating

ultimatejay 10-12-08 08:31 PM

I know some top rotary drag racers using alluminum.


All times are GMT -5. The time now is 01:36 PM.


© 2024 MH Sub I, LLC dba Internet Brands