Quote:
Originally Posted by Vettezuki
Yeah, except for the part where there's no boost or A/F or comparison to a Vishnu unit on the same car and day.  I can see the top numbers are on 93 which makes a little more sense. A chunk of it is coming from the timing.
My point is this, it's hard for me to imagine BMW being that conservative with the stock tune. So much so that with still safe (close to ideal) A/F and timing you could pick up that much power at the wheels. That's more than the old days of the LS1s that came from the factory with VERY conservative tunes. Unless they just running very low boost fro the factory that can just get turned up and the fuel system can support it. 
Is the JB a whole piggy back computer with lots parametric articulation than the stock unit? |
The JB is a piggy back unit AFAIK. The 335i runs relatively low boost stock and the fuel system is stout enough to handle the extra.
I don't know why you're so surprised by this. Remember, with a Cobra like mine you could easily make 60rwhp over stock with a pulley and tune only.
Factory forced induction FTW
