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Location:
South Australia
Registered:
August 2003
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Port
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Fri, 17 October 2003 13:35
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Can any of you ppl out there with ported engines tell me how much extra fuel you use compared to before it was ported and much it was ported?
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Location:
NSW
Registered:
October 2003
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Re: Port
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Sat, 18 October 2003 02:18
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If you are talking about what I understand to be ported it only increases airflow which in terms gives power, it doesnt mess with fuel consumption.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Port
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Sat, 18 October 2003 02:48
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the diffreence will be linked to your right foot. when i ported my exhaust, i think consumption went down on highway runs (less exhaust restriction) but i've always had high fuel consumption figures 
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Location:
Sydney
Registered:
February 2003
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Re: Port
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Sat, 18 October 2003 02:56
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but if airflow increased wouldnt ur ecu crank up fuel to balance the air/fuel ratio?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Port
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Sat, 18 October 2003 03:01
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porting does two things.
increases potential airflow
increases efficiency
but bad porting can also make both worse. even good porting may only increase efficiency and airflow potential in certain rev ranges too.
actual airflow is ALWAYS controlled by your right foot. if you use the throttle lightly, you decrease your fuel consumption, simple as that.
cya, Stewart
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Location:
Sydney
Registered:
February 2003
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Re: Port
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Sat, 18 October 2003 03:04
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if you use the throttle lightly, you decrease your fuel consumption, simple as that
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haha but who is gonna do that! 
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Location:
South Australia
Registered:
August 2003
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Re: Port
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Sat, 18 October 2003 15:54
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sorry, i was talking about porting the head, i should have been more specific
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Port
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Sat, 18 October 2003 16:53
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the head will only flow as much air as the throttle body lets in
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Location:
Newcastle
Registered:
April 2003
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Re: Port
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Sun, 19 October 2003 04:52
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I use don't measure the fuel consumption but i can tell you that with the ported head it now has a heap more torque than it did before.
What sort of motor are you wanting to do this to?
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Location:
Madrid - Spain
Registered:
August 2002
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Re: Port
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Mon, 20 October 2003 01:53
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A ported head if done properly should reduce your fuel consumption is driven easily because you won't be needing as much throttle/fuel to get the required power.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Port
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Mon, 20 October 2003 10:54
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Yah - anything that can reduce pumping losses is a good thing on all counts - but its naturally a big question of tuning, driving style, etc. as well 
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