Originally Posted by JKim
So you're saying that you might as well turbo a NA motor if you're going to swap the stock turbos out anyways, if you're looking for big power? LOL
Uhhh yeah, it was just stated the stock ECU cannot be tweaked further, so a stand alone which costs big $$$$, fuel system big $$$$, turbos $$$$, new exhuast big $$$$, anything BMW related = big $$$$$$$$. The costs would amount to the same as placing a turbo on a NA set-up, so whats the point?
try doing that to the supra, 3000gt, dsm, impreza, rx7 and just about every factory turbocharged motor with a NA version. Every car manufact. that has made a turbocharged motor from the factory has developed their motor to withstand the extra power by adding stronger internals.
Internals were never the discussion pont, just the fact that you are not simply going to up the boost, and expect the stock ECU to allow for that tweak. To give you a finer point, the 3.0l has no tuning software available from any major tuner for a good reason. The gains were so minimal it was not a worth while project. So what makes you think the turbo version is going to have such a huge amount of slop involved? Just because it is FI? Ok you keep thinking that. Those other manufactirers it is well known that even the NA model could be modified to get good gains in there NA models. So I am not following your point. The LS1 for instance can take a moderate cam without any tuning done and come out with average gains of 25rwhp, throw a tune onto it and up to 60rwhp is not unheard of.
Its common knowledge that a turbocharged motors yeild the best bang for buck.
Not being argued, it is well known why they want to do this. The increased amount of torque makes for an excellent commuter car, combined with an already good inline 6 makes for a great driving car. It loses none of its mid range or upper rpm performance, and gains a huge amount of torque at 1800rpms and up. A major win for performance with excellent efficiency.
Why? because of the nature of turbocharging, it leaves alot room for more tuning potential. And to have a factory turbocharged motor that rides on the edge of detonation by maximizing output would be monetary suicide for the car manufacturer. Thats why they leave LOTS of buffer room, which for the aftermarket means tuning potential.
No manufacturer tweaks any engine to near detonation, it is well known that performance engines are tuned to levels that make the best power. But it is well known that BMW leaves no room for improvement on their ECU's and big tuners like Dinan have spent time and money to get no gains shows that BMW has left no room for tweaking on their new engines.