Wierd idea...
#1
Wierd idea...
Ok, so we supercharge and turbo charge our cars to get more air into our engines. We port and polish every piece we can to get the most air we can thru the engine. So what I was wondering, instead of letting the engine preassure and free flowing exhasut tempt the air out of the engine, what would the feasibillty be of haveing something along the principles of a supercharger to suck the exhaust gases out? I'm guessing there may be a reason why I haven't seen it yet, but then again....
#3
Originally Posted by harofreak00
i thought backpressure was there for a reason?
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the reasons for backpressure have been discussed before, but its been a while, ill have to go dig up the discussion, but putting a pump on the exhaust would reduce fuel economy and increase emmissions, and probly decreased performance too because of valve overlap, with the right cam, it might actually increase fuel economy.
#6
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There'* absolutely NO reason for backpressure AT ALL.
The problem with a huge exhaust, is that the CFM drops because velocity falls off too much. Too big of an exhaust doesn't create backpressure, but it doesn't get it out the fastest.
The problem with a huge exhaust, is that the CFM drops because velocity falls off too much. Too big of an exhaust doesn't create backpressure, but it doesn't get it out the fastest.
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Originally Posted by Damemorder
You'd drop the compression ratio too.
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Originally Posted by dblack1
Originally Posted by Damemorder
You'd drop the compression ratio too.
#9
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Originally Posted by dblack1
Originally Posted by Damemorder
You'd drop the compression ratio too.
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Originally Posted by Damemorder
Originally Posted by dblack1
Originally Posted by Damemorder
You'd drop the compression ratio too.