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| Overkill EF |
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I was reading an article in street machine about a 347 stroker ef/el running 12.7 QM that was about to modify a air pump of a F100 as a vacuum pump. In a nother article it says a vacuum pump on a 400hp 308 is generally worth 15-20 hp. Does anyone no about vacuum pumps or the air pump.
_________________ Never late in a stroked windsor V8 |
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| TS50EB |
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I'm not too sure about what they exacty do, but when I had my 93 Mustang it had an air pump on it. I was under the impression it was another pollution control thing from the states.
If it is something to improve performance, I haven't seen any "replacement" ones in any Jegg's, or Summit Racing catalogues. It could be worth looking into.
_________________ The car should be called "Frankenstien". EBII GLi skeleton, AU T2 220kw heart, AU2 brain, EF/EL for everything else. |
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| fairmont1998 |
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If it's the one i'm thinking about it sucks teh air and other gases out of the crankcase, reduces oil misting and turbulance, both of which rob power as the crank fights through them.
_________________ 2008 WQ Fiesta XR4 |
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| EBXR8380 |
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Not big enough and they don't like oil going through them..This has been covered on www.turbomustangs.com often..
There are vacuum pumps for this but $800 is alittle rich.. I think the Mazda RX8 have electric vacuum pump on the rotory...
_________________ As in ZOOM 126 edition |
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| EBXR8380 |
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http://www.turbomustangs.com/forums/sea ... descending
_________________ As in ZOOM 126 edition |
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| Epitome |
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{DESCRIPTION}
_________________ Kel. |
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| XR9UTE |
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Yes the pump you refer to is used to pump air into the exhaust ports. This effectively allows the combustion process to continue in the exhaust manifold for emissions purposes. This is known as Thermactor emissions control or secondary air. The U.S. version of our 5.0L uses the same pump as the F-series.
Our 5.0L car engines did not have it because our emissions standards are much lower than the U.S. In it's place(below the alternator) is an idler pulley. This same pump is sold in the Ford racing catalog as crankcase evacuator. Pete. |
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| 4.9 EF Futura |
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{USERNAME} wrote: Yes the pump you refer to is used to pump air into the exhaust ports. This effectively allows the combustion process to continue in the exhaust manifold for emissions purposes. This is known as Thermactor emissions control or secondary air. The U.S. version of our 5.0L uses the same pump as the F-series.
Our 5.0L car engines did not have it because our emissions standards are much lower than the U.S. In it's place(below the alternator) is an idler pulley. This same pump is sold in the Ford racing catalog as crankcase evacuator. Pete. Is this what they refer to as a smog (or anti-smog) pump?
_________________ I promise..... I will never die. |
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| Overkill EF |
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Street machine says to use a vacuum pump of a toyota 18R but not sure how you would use one with the factory belt. Also they state that the aftermarket ones pulls to much vacuum which is only good for engines built to use one.
_________________ Never late in a stroked windsor V8 |
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| XR9UTE |
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{USERNAME} wrote: {USERNAME} wrote: Yes the pump you refer to is used to pump air into the exhaust ports. This effectively allows the combustion process to continue in the exhaust manifold for emissions purposes. This is known as Thermactor emissions control or secondary air. The U.S. version of our 5.0L uses the same pump as the F-series. Our 5.0L car engines did not have it because our emissions standards are much lower than the U.S. In it's place(below the alternator) is an idler pulley. This same pump is sold in the Ford racing catalog as crankcase evacuator. Pete. Is this what they refer to as a smog (or anti-smog) pump? Yes. |
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| Disco Frank |
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mm i remeber that article
it aint a simple job to add a vacum pump as the whole engine needs to be sealed ie dipstick etc not a bad mod for say 20+hp at the fly
_________________ RIP SCOTT |
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