Quote:
Originally Posted by JANNETTYRACING
The data is in the Experience of over 27 Years in business building Performance Packages.
10 PSI boost is typically NOT doable with a Positive displacement or Turbo on a N/A Stock engine because they both have Peak boost Well before Peak Torque, Where Detonation is Prominent
10 PSI Is common on the Same N/A stock engine with a Centrifugal because Peak boost occurs After Peak Torque RPM where Detonation is not as likely and Higher Peak Power can be achieved.
Ted.
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You are talking about the potential for detonation of a turbo/positive displacement vs a centrifugal. And the fact you can easily make more peak boost with a centrifugal... I certainly agree with that... however what I am talking about is a PROPERLY TUNED (NO detonation) setup. Also not talking about which setup makes more power... We were talking about one setup being harder on a motor than the other...
I respect your experience... but where is the hard data showing that a
properly tuned turbo/positive displacement is harder on a given motor than a centrifugal... i'm talking hard data, not anecdotal evidence... I've got 30 years of computer experience, but I don't make recommendations based solely on my experience. I run multiple tests, collect and analyze the data and then form my recommendations.... I'm assuming no one here has taken two identical cars, one with say a turbo and one with a centri, strapped them to a dyno, do a controlled set of tests and then tear down the motors to see which motor is showing more wear...
And yes, i would say it may sound reasonable that a centri is easier on a motor, but again, I hate blanket statements without out some kind of concrete evidence to back them up...
Quote:
Originally Posted by Unreal
If excessive low end power and excessive low end torque are an issue, which most people think of as a huge positive, you can always setup a boost controller to ramp in boost. You could make a turbo act very similar to a centri if you wanted with a decent boost controller if your complaint is too much midrange.
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That's basically how the boost on Ford's EcoBoosts are calibrated from the factory... boost comes on almost linearly like a centri... However a good tune will change that and you see some pretty impressive gains in the low end...
