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Supercharge or Turbocharge?

Originally Posted by my2004Z Supercharger for me. They seem safer on the engine. Safety has nothing to do with the technology choice for forced induction. Safety is 100% about correct

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Old 10-05-2011, 09:53 PM   #1 (permalink)
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Originally Posted by my2004Z View Post
Supercharger for me. They seem safer on the engine.
Safety has nothing to do with the technology choice for forced induction.

Safety is 100% about correct engine management. You can grenade a NA engine with poor engine management

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Old 10-06-2011, 07:42 AM   #2 (permalink)
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Safety has nothing to do with the technology choice for forced induction.

Safety is 100% about correct engine management. You can grenade a NA engine with poor engine management

- b
Thank you for your opinion but it still seems like the safer route to me.
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Old 10-06-2011, 07:58 AM   #3 (permalink)
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Thank you for your opinion but it still seems like the safer route to me.
There's really no reason to think that.

I suppose you could make the case that there are fewer parts that could fail on a SC set up as compared to a twin turbo (for one thing, only one turbine to worry about), but there really is no reason to presume greater safety.

Centrifugal blowers do tend to make power a bit later in the rev range than a properly set up twin turbo (although the torque curve looked pretty flat for this motor on that set-up), but under high load approaching redline, both are capable of destroying a motor in short order if the tune is bad or if the internals cannot tolerate the extra power.
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Old 10-07-2011, 06:11 AM   #4 (permalink)
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Thank you for your opinion but it still seems like the safer route to me.
Its not an opinion...its fact. Do the research and understand what I am referring to. Many good books out there. I read Corky Bell's books quite some time ago. Some of the A/R math is a bit deep and not necessarily what everyone needs but you get the idea. I have tuned several aftermarket cars using aftermarket computers, and the fundamentals are really the same: air, fuel, timing.

How the air is compressed is irrelevant. What is crucial is correct engine management when it comes to safety (i.e. making sure the engine does not grenade)

When you say something like 'it seems like the safer route', you are not giving me the impression you have an informed opinion here on the technology and issues at hand. Some of us try to offer some guidance to get a better understanding of the entire system and make a more informed choice for yourself.

Let me give you an example (real world). Assuming equal thermal efficiencies between 0 and 12 PSI, would you rather run a 8 PSI SC system that uses an AFPR, fuel pump and timing retard, or a 6 PSI Turbo system with larger injectors and a fully remapped or aftermarket ECU?

Now remove the words SC and Turbo from the above paragraph and re-read....that is really what is important.

In either case, my preference would be choice B.

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