Right guys,

Just been having and interesting discussion with a few friends about matching turbos and cams.

Their understanding is:

If a larger less restrictive turbine is used, manifold backpressure is reduced, reducing of preventing reversion, thus allowing more duration of the exhaust cam. I.e. later closing, hence, more overlap.

Now this wasn't my think, which I won't go into yet as I don't want to "colour" anyones ideas...


What are you thoughts?


Alex