Doubt regards high compression pistons

[EdderSpisder]

Hi guys. Finally the machinist get done the grinding and honning of Crankshaft and block. However a new set of cylinder liners were mounted in the block (due stupid mistake in the unit of measure in/cms).
So now the machinist will be in the error profing with some test to assesmble and try to turn on. Before to do it, he asked me if there is a special color code to paint the block and head. I think is silver o grey but i'm not sure.
Could you please help me to know that color cod, specifications and brand that produce this paint?
Thanks and receive greatings from Mexico
Edder

[baltobernie]

"Ford engine gray" is very close to the original Fiat color, and is available here in aerosol cans.

Will the camshafts in your car be the original Fiat type?

[EdderSpisder]

Hi,
My first thinking was to get in original color (because I have respected the original things in all the rest of car), but checking some pictures in google I saw good proposal to paint the timing belt cover and camshafts in red color but for that I have to paint the engine bay in black color to have contrast of colors and have good look.
What do you think?

[baltobernie]

The 1974 Spider came from the factory with the engine block painted gray, the cam boxes silver, and the timing cover yellow.

You are of course free to do what ever color combination you like. Here are some suggestions for custom configurations: http://www.fiatspider.com/f08/viewtopic ... 3&p=196648

[EdderSpisder]

Hi all
I would like to inform you during this long weekend (cuz mexican holiday on Monday) i have completed to remove the old paint also primer in the engine bay. Now this place is sanding with hard and soft paper with water.
Here i leave a picture on engine bay from satuday, but on monday was better sanded, but i forgot take pics.
Engine will be mounted in next week and hope to finish the paint job with some colleagues. I will inform later and thanks for your support

[paintdudeluke]

I'm a bit confused about the CR and pinging and octane . I believe the higher octane number can alleviate pinging in higher CR (does it increase the flash-point?) engines but then I saw the Mazda's "Skyactive" engines are stated to be 13:1 and run on regular and my VW Passat is 9.5:1 and is recommended to use 91 or better.
What gives? Is it the timing?

Sorry for the off topic but perhaps others can get educated as well.
Thanks
Chris

Octane is a measurement of a property of the fuel, not actually a component in the fuel. It is the fuel's RESISTANCE TO IGNITE. Has nothing to do with other qualities of the fuel. A high octane rating indicates that the fuel is less prone to spontaneously ignite in a hot environment or in the presents of a "hot spot" like a glowing plug electrode and it actually NEEDS a spark as a source of ignition to begin burning. The more resistant it is to ignite the more you can squeeze the hell out of it before you fire the plug.