The Hybrids can do 330-340 without fuel upgrades? On Ethanol or race gas? If you had to choose for point and squirt fun and remaining on the stock motor, which would you choose being as you have pushed both turbos to the limits? One of my favorite things is to not have to downshift when I'm lazy and having that big torque at 2500rpm is a plus for me. I was reevaluating my goals with this platform and think I want to keep the fun spool characteristic of the stock turbo with some added whp the stock turbo can't deliver. Looking for everyday beat on it reliability.
You think the high revs had more to do with your rod failure or the power? With a hybrid you would really rev as high since it chokes out earlier I suppose.
@MO15Fiesta is saying that if you max out everything on a Fiesta's fuel system (uprated injectors + uprated HPFP or aux fuel. either aftermarket fuel upgrade running some ethanol blend or race gas) you can get 330-340WHP on a hybrid but can get up to 380-400WHP on an S280
and i'm not sure if asking the serious builders like MO15 about these differences is the best audience. these guys are coming from all different directions with their perspectives and "every day reliability" is a term that gets left well behind if you're talking to people who are switching turbos out to gain an edge/find the differences between platforms.
there are builders who swear hybrids are a compromised platform from the start because of how small they are and how much heat they generate to produce this kind of power and that big turbos are more reliable. then you have other builders who think journal bearing turbos are compromised, full stop (the S280 is a "big turbo" journal bearing turbo) and if you want true reliability you need to go ball bearing turbo (Garrett turbo). Then you get push back that the hybrid platform is what the Fiesta is designed to use and that journal bearing turbos are designed for small displacement engines so it's actually *more reliable* since it's been engineered for this specific purpose.
and that's just the reliability discussion. drivability is a whole different discussion where some say hybrids create too much low end torque so all you're going to do is roast tires and then others talk about pedal modulation and that hybrids are the best every day-highway passing-power when you need it platform.
edit: as for climbing the ladder, that's up to your tuner just as much as any advice you'll get here. i think most tuners set the redline at 7K regardless of turbo but will up it to 7.5K or higher if you have a big turbo and you're good with really pushing the limits of the engine. all i know is hybrids can hang in the upper revs no problem. they might not be building more power up there but they're not running out of breadth either like the stock turbo
![[:(]](/images/smilies/frown.png "Frown [:(]")
