'99 LS400 Catalytic converter

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01-13-14, 07:38 PM

#16

LScowboyLS

Lexus Champion

Join Date: Dec 2011

Location: Birmingham, AL

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Quote:

Originally Posted by fastegg

Everything I do now I would like to do for improved fuel economy.. In the 4 years since I bought it, petrol prices have doubled to $1.60 per litre

think of this way - if you increase air flow and keep the 14.7:1 stoichiometric air-to-fuel ratio, then you will correspondingly burn more fuel, rather than less

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01-13-14, 09:14 PM

#17

Finn

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Quote:

Originally Posted by fastegg

Everything I do now I would like to do for improved fuel economy

What sort of mileage do you get now?

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01-20-14, 03:38 AM

#18

fastegg

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Quote:

Originally Posted by Finn

What sort of mileage do you get now?

No idea... Only what the digital readout tells me.. Even if my fuel economy got better, the readouts will be the same as they read off the map. ( I think)

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01-20-14, 03:40 AM

#19

fastegg

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Thanks for the feedback on the cats... looks like their staying put...
Wouldn't mind taking out the 2 center mufflers to see what it sounds like.... Its too quiet...

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