Dr.Jeff
True Classic
Grease is how the man got fat. So it is all the same meaning.in italian grease is grasso, but grasso is also a fat man
Grease is how the man got fat. So it is all the same meaning.in italian grease is grasso, but grasso is also a fat man
Sometimes the way it was done originally isn't necessarily the best design. So making improvements to suit your needs is not only o.k., but mandatory in my opinion. Another great job.I modified the back slightly because I have an oil cooler. It's a thing that bothered me a lot to do, because I built in a different piece than the original could have been, but if I hadn't done so, I would have made the function of the radiator useless.
To me that is a little high for a street driven car, but I understand it wasn't avoidable. Hopefully you have high octane fuel available. The crack repair looks good, that is difficult to do right.the result is 12.66: 1
I have a thicker head gasket in my 1050 cc engine (built on a 903 cc block) which is 1.6 mm I believe. I would have to go look for my engine build specs, but I think the CR is around 10.5 to 1 compared to stock 9.8 to 1. My A112 head is brand new which will lower the CR compared to yours. You could always increase the volume in the combustion chambers but that is a lot of work.So, we know that the compression ratio is calculated with the formula (v1 + v2) / v1
v1 = head chamber volume
v2 = volume of air sucked into the cylinder, practically the volume between lower and upper dead center.
Do not forget the volume in charge of the head gasket, which we decided to consider of 1.50 height from the tablet.
View attachment 31095
my wife is always very precise with the calculations. In the end the result is 12.66: 1. Not bad, a little high, but not excessive.
These days other works and spare parts coming soon ...
Also, using an A112 valve cover means the filler cap will be at the opposite end. Have seen many photos of folks who have done it but would be a bit of a nuisance for adding oil plus it just doesn't look right.In a 600 or an 850 you can’t use the A112 valve cover (which also includes the intake manifold as part of the casting) as it would cant the carburetor at the wrong angle and the wrong orientation of the carb. The opening into the head is effectively the same for both the A112 and the 850 head. So one uses the early 850 or an Abarth or similar intake manifold along with a 850 valve cover.