Quote:
Originally Posted by boosted
The max flow for the stock turbos and fuel is unknown as of now, to my knowledge. Thats why I stated that my post was an opinion. Here is an example of a 380whp (465bhp) 335i:
http://www.e90post.com/forums/showthread.php?t=126918
here's the setup:
2007 335 6MT
~30k miles
PROcede v2.1 beta (with built-in o2 simulators)
Riss catless dp
Vishnu cat-back
Dual cone filter intake
Stock bypass valves, stock intercooler, etc,.
its not a question of you believing my math, its a question of you believing the facts.
-Chris |
More... is not necessarily better! Some people take aftermarket modifying too far in one direction and don't balance their upgrades. Getting 400hp out of the N54 isn't the question (it's easy), the question is how you choose to get those 400 ponies. Something like aftermarket downpipes only aids the N54 higher in the rev-band by freeing up the turbos when the flow would normally start to be restricted from the primary cats. But a FMIC is always effecting the N54 from idle to redline.
Although, most people won't buy an aftermarket FMIC because it doesn't show huge gains and isn't as easily marketable or "in your face" added horsepower. While DPs are a cheap 20hp gain, technically those gains come at 6,000rpms and are highly illegal.
So, again, it is not a question of can the N54 be modded to achieve 420hp at the crank (375whp), but what path are you going to follow to achieve those results.
Personally, I feel those mods you listed in the above post, is a poor set up. I feel the first obstacle you need to tackle in a twin turbocharged car is heat. The best way to combat this, is to start with the air going into the engine. The cooler the better. Then tackle each system and upgrades those until you achieve your goal. That way if you ever set your goal higher, all the prerequisites are covered.
Additionally, 380whp is not 465bhp, it would be more like 425bhp (crank).