Are cylinder pressure and boost pressure inextricably linked

[ginge191]

As far as I understand it ginge the smaller turbo will spool up sooner in the revs thus giving you more boost sooner in the revs so providing you can supply the fuel to burn you would get more power sooner in the revs which would tail off qicker than with a larger turbo due to the smaller turbo going outside its efficiency range sooner if that makes sense?!

So would this have any impact on torque levels at all??

I'm trying to get my head around a way of getting a decent low end boost from a derv without resorting to massive changes in the engine. I'm already running a bosch setup a small KKK turbo at 18psi, runs recently nicely and has a nice boost low end - trying to get a bit more - getting an FMIC sorted soon.