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Need to get clarification: Does SRI improve your feul efficiency?

Old 27-Oct-2005, 04:30 AM
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Need to get clarification: Does SRI improve your feul efficiency?

Alrite,

I need to know if a SRI or CAI will increase your feul efficiency?

I read on some forum that it does. But doesn't more air = more fuel? Confused...
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Old 27-Oct-2005, 07:37 AM
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your statment is correct: more air = more fuel
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Old 27-Oct-2005, 09:42 AM
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Right, so neither SRI or CAI will IMPROVE fuel efficiency if you're changing your stock intake.

But between SRI or CAI, the SRI is more fuel efficient compared to CAI because of slightly less (cold) air flow
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Old 27-Oct-2005, 05:24 PM
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your fuel consumption will go up.. mostly becasue you will beat on your car to hear the increased noise from your intake
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Old 27-Oct-2005, 05:28 PM
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Originally posted by ERTW
your fuel consumption will go up.. mostly becasue you will beat on your car to hear the increased noise from your intake
that's what my case is lol
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Old 27-Oct-2005, 05:35 PM
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u drive a civic give me a break...
gas @ 1.00 and its still cheap to drive around in a civic

Originally posted by ERTW
your fuel consumption will go up.. mostly becasue you will beat on your car to hear the increased noise from your intake
/\ lol, yup and rememebr its a sri/cai, not a turbo lol
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Old 27-Oct-2005, 05:54 PM
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Originally posted by LEITNER
your statment is correct: more air = more fuel
If more air = more fuel, than similarly less air = less fuel right?

Soo... which car will run out of gas first?

A car idling with a restricted intake or a car idling with a easy-flowing intake? (Just wondering... what are the actual results, not theoritical)
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Old 27-Oct-2005, 06:08 PM
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its probably just a few km's off... most of us have CAI or SRI in our civics and a full tank still run us somewhere between 450-550 (even 600) kms depending the ratio of city/hwy driving...
so it'll reduce fuel efficiency, but its too lil to hurt your wallet or get you notice... let say you don't have one, you'll probably just be like 10,20,30km better off... 20km per 40L, that's just 0.5KM out of a L of gas... so that's maybe 5 cents? you know what i'm saying...
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Old 27-Oct-2005, 09:41 PM
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Originally posted by LDX


If more air = more fuel, than similarly less air = less fuel right?

Soo... which car will run out of gas first?

A car idling with a restricted intake or a car idling with a easy-flowing intake? (Just wondering... what are the actual results, not theoritical)
it wouldnt make a difference. at idle the volume of air is negligable compared to the volume that flows under load. whatever restriction due to a regular filter would be negated by the tiny surface area of the opening of the IAC valve
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Old 27-Oct-2005, 09:43 PM
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Originally posted by ERTW
your fuel consumption will go up.. mostly becasue you will beat on your car to hear the increased noise from your intake
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Old 27-Oct-2005, 10:08 PM
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who cares...ur 4cyl is cheaper to operate than my 8
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Old 28-Oct-2005, 06:34 AM
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If your new intake makes more power at the RPM's you regularly drive your car at, ideally, you fuel efficiency will increase.

Yes, more air equal more fuel, but that is based on throttle input. If the additional power allows you to drive around with less throttle you will be using less fuel.

On the flip side, usually when you add more power to your car you will drive it harder and directly use more fuel.

So, theoretically, if you drove your car the exact same way as before your fuel economy would increase.

For instance, I have a 200+whp b18c5 that get over 32mpg (better than stock). What makes this number impressive is the tranny that puts me at 4000rpm at 120km/h. The additional low end torque allows me to practically idle the trottle on the highway and use little gas. Proper A/F ratio tuning is also important.
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Old 28-Oct-2005, 07:26 AM
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this thread is still open?
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