Piston Compression Ratio
Thread Starter
Racer
Joined: May 2005
Posts: 470
Likes: 1
From: Amelia Ohio
Piston Compression Ratio
I was reading one of the other post about compression ratio Calc. Some one had stated that the KB calc. was wrong on the +/- cc input of the calc.. I just want to clarify what is proper. It is my understanding that the flat and pop ups are -cc and the dish is +cc.
Reasoning is the pop up takes up more space there by raising the ratio by taking away space being -cc. Dish piston create more space being +cc.
Let's hear from everyone to make sure this is a correct understanding because I read multiple people understanding it be other than what I think it is.
Chris
Reasoning is the pop up takes up more space there by raising the ratio by taking away space being -cc. Dish piston create more space being +cc.
Let's hear from everyone to make sure this is a correct understanding because I read multiple people understanding it be other than what I think it is.
Chris
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Welll ... I do understand what you mean ... all too well.
I dunno what is "proper " ... but KB flies in the face of convention ... other calcs enter -cc for flat/dish & +cc for dome. KB also flies by showing their flattop piston in their catalog as having a POSITIVE dome volume ... well I guess that might work with their unconventional CR calculator ... because it's azz backward too.
I dunno what is "proper " ... but KB flies in the face of convention ... other calcs enter -cc for flat/dish & +cc for dome. KB also flies by showing their flattop piston in their catalog as having a POSITIVE dome volume ... well I guess that might work with their unconventional CR calculator ... because it's azz backward too.
