02-05-2021, 09:53 AM
Hi Jon
The thing is that you are dealing with subjective issues.
Setting the tappets to the narrowest possible gap possibly increases lift and therefore performance but by how much is debatable. However striving for this tightest gap leaves no room for margin. I certainly need a reasonable safety margin in everything I do on the car to make up for my meagre engineering skills
.
Then the question of noise. What sounds like a “bag of chisels” to one is hardly discernible tinkling to others.
I’ll stick with 6’s and 7’s cos it gives me a reasonable margin of error and my poor hearing makes me think I have a quiet engine
.
Cheers
Howard
The thing is that you are dealing with subjective issues.
Setting the tappets to the narrowest possible gap possibly increases lift and therefore performance but by how much is debatable. However striving for this tightest gap leaves no room for margin. I certainly need a reasonable safety margin in everything I do on the car to make up for my meagre engineering skills
.Then the question of noise. What sounds like a “bag of chisels” to one is hardly discernible tinkling to others.
I’ll stick with 6’s and 7’s cos it gives me a reasonable margin of error and my poor hearing makes me think I have a quiet engine
.Cheers
Howard