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07-21-2004, 01:46 AM | #1 | |
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Overview: Supercharger vs. Turbocharger
SUMMARY: The intention with this article is to shed some light on the theories behind turbocharging the modern engine, and the wonderful advantages it gives us in both speed and basic engine design issues. This post is also to try and give people a better understanding of supercharger systems and how they work to make such a simple thing as an engine even simpler.
View full article What do you think about this story? Post your comments below. |
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08-11-2004, 05:54 AM | #2 | |
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Re: Overview: Supercharger vs. Turbocharger
I didn't learn much from what I knew before, but nonetheless, I still learned something!
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03-11-2006, 11:26 AM | #3 | ||
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Re: Overview: Supercharger vs. Turbocharger
Quote:
I think instead of going on the write about how old the argument between the two camps are; he could have easily stated what the dession depends on. I am no closer to figuring out if I want to SC or Turbo my motor from reading this.
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08-17-2006, 03:23 PM | #4 | |
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Re: Overview: Supercharger vs. Turbocharger
Another drawback of a "turbocharger" is lag time. Due to the fact that the turbo runs on kinetic energy that is beeing thrown away as exaust, It takes time for the turbo to get up to high enough RPMs to produce enough pressure to cause an increase in power.
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08-17-2006, 03:39 PM | #5 | |
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Re: Overview: Supercharger vs. Turbocharger
Nice comparison and nice additions. Just one thing I would add: "supercharger" works almost equally efficient on the whole engine speed interval, while turbocharger kicks in at relatively high engine speeds, just because it needs some kinetic energy to turn the turbine. So, if you need power on the low end, you need "supercharger". This is one of the "depends"
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03-15-2008, 12:05 PM | #6 | |
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Re: Overview: Supercharger vs. Turbocharger
"These must work within a maximum pressure variation of 0psi (which is really hard to create without massive pumping losses) and 14.7psi (maximum atmospheric pressure @ sea level)."
What's missing: all, repeat all, high-performance and race engines produce higher pressure due to reversion waves (up to 7 psi or so just from exhaust tuning). |
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03-15-2008, 12:07 PM | #7 | |
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Re: Overview: Supercharger vs. Turbocharger
"that's always sealed off from the rest of the system so we can forget about that complexity)"
??? Except when the exhaust valve opens BBDC before the power stroke is done - which happens in every single engine for the last 50 years. No high positive pressure in the exhaust? Turbo does not work. |
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03-15-2008, 12:10 PM | #8 | |
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Re: Overview: Supercharger vs. Turbocharger
"air should NEVER pass backwards through the system unless the supercharger stops working"
True for mechanical superchargers. All street and mild turbos, which have exhaust backpressure twice the intake boost - and exhaust backs up into the chamber on overlap all the time. Only the most highly developed turbo engines have positive flow-through on overlap. |
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03-15-2008, 12:12 PM | #9 | |
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Re: Overview: Supercharger vs. Turbocharger
"the turbo contributes to supercharging the exhaust system"
Sorry, what does this mean? |
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03-15-2008, 12:17 PM | #10 | |
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Re: Overview: Supercharger vs. Turbocharger
Better yet, read my article: http://victorylibrary.com/mopar/blower.htm
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09-12-2008, 07:57 PM | #11 | |
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Re: Overview: Supercharger vs. Turbocharger
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Find out how to get out of paying your speeding tickets here. These are legal ways to not pay your speeding tickets, and not have it go against you! Last edited by '97ventureowner; 09-12-2008 at 09:59 PM. |
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09-12-2008, 10:01 PM | #12 | |
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Re: Overview: Supercharger vs. Turbocharger
Please check the date of the last post in the thread and do not respond if that date is longer than 3 months from the current date.
From AF's Community Guidelines: POSTING IN CLOSED OR OUTDATED THREADS: If a thread has been closed, there is probably a logical reason for it. If you feel that the reason(s) for closure of the original thread are unjustified or wish further clarification feel free to contact any member of the moderating team. However, do not start a new thread about another closed thread. Please avoid posting or voting in outdated threads. It merely clutters up the message board and makes it more difficult for fellow members to sort through the vast amount of information contained on the boards. If you have new and important information to add regarding a past discussion, feel free to start a new thread and if need be, add a link to the original thread. The link to these guidelines can be found here:http://www.automotiveforums.com/vbul...uidelines.html Closed.
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