Quote:
Originally Posted by Vigilante375
It would be nice we could swap the cams in our engine. But have said doing so won't net any gains.....thats a bunch of bull.
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From what I've seen on before/after dyno results aftermarket cams for the S65 can actually add a tiny bit of mid-range power, but it's more an issue that no one in their right mind would pay $3-4,000 for a few whp, lol.
At the end of the day extracting every bit of power is all about finding and improving the weakest link in the chain so to speak, and with the S65 pushing over 100HP per liter, there just aren't many weak points...Seems like the only thing really "de-tuned" from BMW is the exhaust system for emission purposes.
One thing I'd like to know more about is BMW's VANOS system. I know it affects the cams at higher RPM's but do you know if it actually increases lift & duration, or only timing?