Equation boost+CC=hp

[slakker]

Does anyone know of an equation the would involve the engines cc's the amount of boost you are applying to it and what is the expected hp out come. Or some to that effect. Guesstimation. It could seem as though an equation would exist

[Supafly]

not really, too many variables. compression ratio for example, you can have a 2L engine with 11:1 compression and you can have a 2L engine with 8:1 compression. then you have variables like turbo compressor flow, because a T25 won't flow as much as a T04E at a given boost level. at least i've never seen a good FREE calculator for this. i'm sure you can get a program like "desktop dyno" and plug in all of the given variables with the correct values and you'll get a good estimate.

[extheflow]

best thing to do is search for dyno charts online of people with similiar mods and boost levels.even then it's only going to be close.

[slakker]

Thanks alot there were some variables I didnt think of. I was just looking for a rounabout.

[extheflow]

if you can define the turbo and the engine then you could get a close estimate.

[s13sr20chris]

airflow and displacement can yield a reasonably accurate number.