Hey all, I'm new to forced induction and tuning in general (previous cars were V8s, and carbureted) so I'm trying to understand the limits on making power with 91/93 oct. (I know more power can be made on E30, but that's not the information I'm looking for here).
I'm budgeting for an S280, and after reading the build threads here I know that turbo caps out around ~265 whp on 91 and ~285 whp on 93, but my question is why? Is it a fueling issue (solvable with upgraded injectors and fuel pump)? Lack of boost (solvable with a bigger turbo or increased pressure)? Camshaft (solvable with a more aggressive profile)? Displacement?
Knowledge is power and I'm looking to learn.
I'm budgeting for an S280, and after reading the build threads here I know that turbo caps out around ~265 whp on 91 and ~285 whp on 93, but my question is why? Is it a fueling issue (solvable with upgraded injectors and fuel pump)? Lack of boost (solvable with a bigger turbo or increased pressure)? Camshaft (solvable with a more aggressive profile)? Displacement?
Knowledge is power and I'm looking to learn.