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FUEL EFFICENCY (upgrades)

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Old Apr 9, 2008 | 06:44 PM
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Default FUEL EFFICENCY (upgrades)

Greetings,
As we all know gas prices are going up and up esp in Cali where its almost $4 already. i wanted to know what might help to improve the fuel efficency.
i installed Vavaram intake and now i am averaging from 17.9mpg to 20mpg.
i have new magnaflow, X pipe, 90mm mass air flow sencer, but the only thing that worked was Vavaram intake and when i had 160 stat installed.
i have heard the predator tuners as well as headers would help the fuel efficency. would you agree with it? and what are my other options?
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Old Apr 9, 2008 | 08:28 PM
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Supercharger!!!!lmao
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Old Apr 9, 2008 | 10:26 PM
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Diesel!
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Old Apr 9, 2008 | 10:38 PM
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Sell Vette get a Honda Civic
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Old Apr 9, 2008 | 10:58 PM
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Default Axle ratio

You didn't indicate what axle ratio your car has. I expect the stock 2.56 will get better milage on the highway than the 2.73performance axle.

My 07 C6 auto with 2.56 standard axle gets 30.5 to 31 mpg highway average, while maintaining 75 mph.

I'm still amazed at this milage from a 400hp engine.
LJ
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Old Apr 9, 2008 | 11:01 PM
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Originally Posted by SANJU100
Greetings,
As we all know gas prices are going up and up esp in Cali where its almost $4 already. i wanted to know what might help to improve the fuel efficency.
i installed Vavaram intake and now i am averaging from 17.9mpg to 20mpg.
i have new magnaflow, X pipe, 90mm mass air flow sencer, but the only thing that worked was Vavaram intake and when i had 160 stat installed.
i have heard the predator tuners as well as headers would help the fuel efficency. would you agree with it? and what are my other options?
Put the stock mass airflow sensor back on and check the mileage. That big one may be asking the system for more fuel than the engine really needs. Most everything I have read say the larger mass airflow sensors on a pretty much stock engine are just a waste of money. I have no personal experience as I do not intend to change mine. I get much better mileage than you are getting and everything under the hood is stock.
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Old Apr 9, 2008 | 11:50 PM
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LOL you'll spend more on trying to get better MPG out of a car that wasn't designed with that as it's focus than you'll save on gas.



Please.
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Old Apr 10, 2008 | 02:12 PM
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you guys are right about me buying a honda civic or that this car is not for fuel milage and stuff like that. but if i can increase HP with some fuel milage, i think its better. and thats what i was asking.
Vavaram does increase HP, but also fuel ecomomy. and therefore i wanna do mods that will do both, increase HP and fuel economy.
as much as it may sound funny, thats the way i look at it.
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Old Apr 10, 2008 | 02:29 PM
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heads, FAST intake, CAI, Headers. All the above will make the car more efficient and therefore better on gas IF you keep your foot out of it.
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Old Apr 10, 2008 | 03:52 PM
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Tires pressure at 34# hot. Keep it waxed and slippery.
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Old Apr 10, 2008 | 06:31 PM
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Underdrive pulley will help for sure.
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Old Apr 10, 2008 | 06:45 PM
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Lightweight forged wheels, lighter rotors, lightweight race seats, UD pulley, lightened flywheel, proper tire PSIs, keep the roof on... lighter right foot!

If you want to go even more extreme, start removing sound deadening, the stereo, nav, AC, etc. If you never use the washer fluid for the wipers, you can save a few pounds by draining that.
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Old Apr 10, 2008 | 06:46 PM
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what is Underdrive pulley?
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Old Apr 10, 2008 | 06:50 PM
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Originally Posted by LarryMJones
I'm still amazed at this milage from a 400hp engine.
LJ
-- -- Me too. -- --
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Old Apr 10, 2008 | 09:31 PM
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Raise the compression through the use of a thinner head gasket.
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Old Apr 10, 2008 | 09:32 PM
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Originally Posted by RogerC6
Sell Vette get a Honda Civic




Dont buy a vette then complain about gas
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Old Apr 10, 2008 | 10:23 PM
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Originally Posted by KMK454
Lightweight forged wheels, lighter rotors, lightweight race seats, UD pulley, lightened flywheel, proper tire PSIs, keep the roof on... lighter right foot!

If you want to go even more extreme, start removing sound deadening, the stereo, nav, AC, etc. If you never use the washer fluid for the wipers, you can save a few pounds by draining that.
Don't forget nitrogen in the tires to float the car.
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Old Apr 10, 2008 | 10:28 PM
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leave your valves open on the NPP exhaust...if it's good for 6hp, it must be more efficient...
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