The boost against CR graph
Turbo Mini Forums

This graph has made a few appearances on the forum:



However, how religiously should you stick to it?

For eg, if you had a CR of 9 the graph is showing around 12-13psi, but what if you wanted to push up to 15-16psi as so many do?

Does the graph take into account intercoolers?

http://turbominis.co.uk/forums/index.php?p=vt&tid=170151

Put it this way we ran 25psi on 8.15:1 that graph seems to sat a max of 16-18psi.

I'd be quite happy putting 15psi through and engine with 9:1 as long as it has mappable ignition and a decent IC.

If something is worth doing, it's worth doing half of.

That graph was very conservative when I produced it in the first place.

In hindsight, it is basically incorrect above 15 psi.

EDIT: Original thread:

http://www.turbominis.co.uk/forums/index.p...tid=124316&fr=0

Edited by Paul S on 21st May, 2012.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

This will encourage me to push my car to 18psi this year !

You are a mad man Dave

Good skills.

If something is worth doing, it's worth doing half of.