![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
gtschris.com wrote:
I am reading a great book at the moment(maximum boost by cork bell) I found a paragraph that sums it up .
What is the best compression ratio for a turbocharged engine?
There is no such thing as the best or ideal compression ratio.![]()
The simple fundaments are:
The lower the compression ratio, the easier it is to produce a lot of boost with no detonation.
The higher the compression ratio, the greater the fuel efficiently and non-boosted response.
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
Corky's book is a good book to have, but some of the content and ideas are quite a bit out of date
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
gtschris.com wrote:
I am not going too disagreed with the proven facts behind squish/ quench area, from what I have read 0.04 or 0.1mm is the max you want.
![]()
![]()
The 3sgte has far more than this standard as you have the head gasket
+ deck height.
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
It's actually 1.0mm that they talk of being the max for squish
![](./images/smilies/spacer.gif)
![Wink ;)](./images/smilies/icon_wink.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
gtschris.com wrote:
Just out of interest do you know if the rev3 has the same deck height as a rev1/2(I never measured it).
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
I don't mate, no.
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
gtschris.com wrote:Rev3 has 1.2mm head gasket standard(0.2mm more than rev1/2) so that combined with same deck height would mean a rev3 has a larger squish volume?
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
I don't know in terms of squish volume
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)
![](./images/smilies/spacer.gif)