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| edfairmont4.0 |
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Hey fellas, Im curious about the standard exhaust.
I'm wondering if there is much restriction in the mufflers on the stock exhaust... I was thinking of removing a muffler or so.. If it would give an increase in fuel economy that is, I don't really want it to be noisy. Car is an EF Fairmont with an AU motor.
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| FAST-XR |
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a cat back exhaust on a stock motor isnt going to gain you any power, and if your not gaining any power then you wont gain any fuel economy...
although on the other hand a good set of extractors would see increased economy... but im sure they would rust out before you can recoup the outlay in savings  out of curiosity, what is your average fuel consumption like?
_________________ 07 BF MKII XR6T |
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| edfairmont4.0 |
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Lol yeah I was pretty sure the only gains I would see would be out of a nice set of extractors, Maybe later lol
well my consumption is very good so I probably shouldn't screw with this car... Highway: 7-7.5L per 100 Town 11-12L per 100 My combined economy is 10.8L at the moment with average speed of 42km/h
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| FAST-XR |
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your not going to get much better than that! thats good economy for ANY falcon
_________________ 07 BF MKII XR6T |
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| cjh |
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Stock factory mufflers were triple pass.....XR6 mufflers were angular pass, straight through.
Std factory exhaust were 2&1/4", XR6 were 2&1/2". Go figure.
_________________ http://youtu.be/jJTh9F3Vgg0 |
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| FAST-XR |
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[quote="cjh"]Std factory exhaust were 2&1/4", XR6 were 2&1/2".
quote] how sure are you about that?????????????????? my EL XR6 had a 2.25" 
_________________ 07 BF MKII XR6T Last edited by FAST-XR on Tue Aug 10, 2010 1:27 pm, edited 1 time in total. |
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| edfairmont4.0 |
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FAST-XR wrote: your not going to get much better than that! thats good economy for ANY falcon Lol yeah I was looking at figures for newer falcons, Mines is up there...
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| edfairmont4.0 |
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Im positive XR's never got 2 1/2" exhausts.
Think i'll just leave my car alone, Until the modification bug bites me again lol, The last sting I got I ended up with a BF motor in an EB 
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| GeZza200 |
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i got an old street ford mag with a NA6 AU falcon. Stock it pulled 97rwkw and with the 2.5" catback it pulled 106-107rwkw. So there is an increase but mainly up top.
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| edfairmont4.0 |
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Lol holy s**t thats crap power... Surely my car has more then that... The ef doesn't seem that gutless.
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| GeZza200 |
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edfairmont4.0 wrote: Lol holy s**t thats crap power... Surely my car has more then that... The ef doesn't seem that gutless. haha could be a harsh dyno. But still it shows it has gained power.
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| edfairmont4.0 |
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yeah that's true.
I wouldn't mind an exhaust on the EF just to give it some more poke, But I dont want it to have noise.
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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| GeZza200 |
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edfairmont4.0 wrote: yeah that's true. I wouldn't mind an exhaust on the EF just to give it some more poke, But I dont want it to have noise. haha yeah. Iv had mine quieten down. I got sick of the noise.
_________________ EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come |
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| krisisdog |
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FAST-XR wrote: cjh wrote: Std factory exhaust were 2&1/4", XR6 were 2&1/2". quote] how sure are you about that?????????????????? my EL XR6 had a 2.25" XR6 should have a 2.5" press bent exhaust, std are 2.25" press bent. For the money its not worth removing a box or two, just get a catback with 2 mufflers. |
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| edfairmont4.0 |
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I think down the track, I'll get a some tuned length Extractors + a quiet exhaust.
_________________ ED Fairmont, Ghia mock DOHC-T 11.6 @ 118 Trying to get back to the 1/4! |
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