Quote:
Originally Posted by totopo
If you say nitrous is na, then yes, a 300hp fa20 on nitrous would need beefy internals just as much as a 300hp fi motor because the cylinders are seeing the same pressures.
The reason that na doesn't need as strong internals as fi is because you are normally limited by the amount of air that you pull in. You can make it as efficient as you want and there is still a max bmep that you cannot surpass. but if you are saying nitrous counts, nitrous causes pretty insane cylinder pressures, so the end effect is the same as fi. You get hp with more air instead of more revs.
Edit: of course that is assuming you are using nitrous ALL THE TIME. The fact that it is just sporadic makes it like a scramble button on a fi. It would be like if you normally ran super low boost then periodically ran short stint at high boost. Is the failure rate acceptable with that usage? Who knows
|
Very nice statement. thanks
