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Improved Highway Fuel Economy


adrian_celati

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  • Member For: 16y 14d
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Hi all,

Thought you may find it interesting that after removing my centre muffler (BF MKII XR6T) I have had improved fuel economy on the highway. I now get down to 8.4L/100. The best I could manage before was around 9.4L/100. How does this consumption compare? Figured it may be a result of more bottom end torque around 2000rpm (cruising speed)???

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Is that the same stretch of road, similar weather/wind etc? Can be hard to compare fuel consumption figures with small changes as theres heaps of variables that affect fuel consumption.

I didn't notice a difference when I removed my centre muffler.

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  • Member For: 14y 4m 19d
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  • Location: Penrith

I have a tuned auto ba and I average about 10.5-11 on the highway,stock was 10-10.5, the average on the trip computer says 15 but by working it out the old fashion way that's what I get.

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  • Member For: 16y 14d
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Is that the same stretch of road, similar weather/wind etc? Can be hard to compare fuel consumption figures with small changes as theres heaps of variables that affect fuel consumption.

I didn't notice a difference when I removed my centre muffler.

These are the pipes I bought off you - sounds good by the way! Same stretch of road - pacific highway, went from Sydney to Ballina on a tank. Same conditions as before - one passenger, medium load in boot, cruise set to 4-5k over speed limit.

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  • Resident idiot.
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  • Member For: 14y 4m 4d
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  • Location: Melbourne

I just got back from a trip up to sydney and I was averaging around 7l/100km. I get 11ish normally.

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