Re: Engine tips needed!
Posted: Thu Feb 25, 2016 3:56 am
Sometimes I go as high as 15 psi for special versions... but really why would you need higher boost? As it was pointed out, until very recently the companies start to use higher psi values, but that's because of fuel emissions and fuel economy, and with modern technology (twin scroll, twincharging, variable...etc) runing higher psi is not a problem. Until maybe 10 years ago, it was pretty usual that the cars run up to 12 psi, and 10 years before that 8 psi. Even now, if you put a turbo in your car, unless you go crazy and only use your car in dragstrips, you must likely get 8-10 psi from an aftermarket turbo.
It has to do with designing philosophy as well, why would I need a small 2L engine to put 600hp?
Currently in game, to make a turbo with high boost efficient, you will need to made your turbos bigger, and you'll end up with a horrendous amounts of turbolag, less reliability and only getting power in the higher rpms with a low fuel economy... and hurting drivability, throtle response and comfort. For a racing application is good, as the stats don't matter and you only want to go faster. But for a street car, I rather to swap to a bigger engine with more cylinders if possible. Or simply a bigger NA engine, because NA requires less colling (aka less drag) are ligher (comparing a na and a turbo of the same size) and don't have a drivability penalty.
And, using 18psi for a rubish 144 hp per liter? or worse in case of mercedez... 22 psi and barely 100-120hp per liter? I can get those figures easily with 12 psi.
It has to do with designing philosophy as well, why would I need a small 2L engine to put 600hp?
Currently in game, to make a turbo with high boost efficient, you will need to made your turbos bigger, and you'll end up with a horrendous amounts of turbolag, less reliability and only getting power in the higher rpms with a low fuel economy... and hurting drivability, throtle response and comfort. For a racing application is good, as the stats don't matter and you only want to go faster. But for a street car, I rather to swap to a bigger engine with more cylinders if possible. Or simply a bigger NA engine, because NA requires less colling (aka less drag) are ligher (comparing a na and a turbo of the same size) and don't have a drivability penalty.
And, using 18psi for a rubish 144 hp per liter? or worse in case of mercedez... 22 psi and barely 100-120hp per liter? I can get those figures easily with 12 psi.