Hooptie":60z8rjgq said:
what kind of number can be expected from a set up like this? Or on a 300?
I always wanted to do this to the 4 liter in my old Ranger
Theory is, if you double the air going in, you double the HP coming out, so at 14psi, a 100% bump in power.
Nothing comes free, however, so in reality the gains are considerably less. There will be losses. Pumping losses, heat losses, etc. Double the air in, 70% gain? maybe, depending on how efficient the original engine is.
The other thing is, to get 14psi into an engine is probably going to require a lot of mods, at least if you want to repeat that performance more than once without lots of expensive noise. Lubrication, balance, materials, parts, heat removal, etc. all have to be improved to handle the additional loading.