1:13 comp ratio, ignition issue

[Alfar7]

180OUT:
Please don`t suggest something you haven`t done

Do not use copper head gaskets in an Alfa motor they wont work.
Won`t seal for any length of time regardles of compounds or layers. Warp liners on torqring, & retorquing. Good for "few run" motors only. Not for road race and not an option for street at all.

[reuven]

In the end I bought from Pertronix the ignitor and the 40K coil and mount it in an old Bosch distributor 0231110045. I changed the advancing springs inside the distributor to the strongest I could find that still fits.

This works very nice, no pinging any more. I am using 99 octane.

Look at my videos and my favorite videos on youtube (reuvenso), you will find some nice things.

Reuven

[180OUT]

Quote:

Quote: Originally Posted by Alfar7 180OUT: Please don`t suggest something you haven`t done Do not use copper head gaskets in an Alfa motor they wont work. Won`t seal for any length of time regardles of compounds or layers. Warp liners on torqring, & retorquing. Good for "few run" motors only. Not for road race and not an option for street at all.

[180OUT]

For those who are interested, I should have mentioned that the gasket I purchased from Alfa Ricambi was not a solid piece of copper. It was made with two copper faces sandwiched between what appeared to be standard gasket material. Except for the copper faces, it was identical in construction to an OEM head gasket including, for instance, the aluminum sealing rings which fitted between the liners and the head, etc.

It was obviously a manufactured product which probably explains why it worked so well on my car. A solid copper gasket would undoubtedly have the disadvantages Richard mentions.