More MPGs?

1.8-liter VVTL-i (2ZZ-GE) and VVT-i (1ZZ-FE) engine, transmission, exhaust, intake, and performance tuning discussions
Post Reply
joholste
Posts: 1560
Joined: Mon Jul 05, 2004 9:21 am

More MPGs?

Post by joholste »

Alright i have a CAI, borla Exhaust and i just got performance headers, and the JC Whitney Turbolator exhuast tip; is there anything anyone else can think of to gain MPGs
2003 Chevy Silverado Ext. Cab, Z71Formerly2003 Base Vibe (Frosty)
Raven
Posts: 2922
Joined: Tue Sep 30, 2003 10:58 am
Location: Lac Ste. Marie, Quebec

Re: More MPGs? (joholste)

Post by Raven »

Chevy Aveo or Pontiac Wave?
ragingfish
Posts: 11022
Joined: Tue Oct 15, 2002 8:23 am

Re: More MPGs? (joholste)

Post by ragingfish »

Quote, originally posted by joholste »Alright i have a CAI, borla Exhaust and i just got performance headers, and the JC Whitney Turbolator exhuast tip; is there anything anyone else can think of to gain MPGsActually, you're probably hurting your efficiency with those mods...CAI is hit or miss...some people gain, some lose economy. I lost significantly. Reality is, though, your car comes from the factory more or less tunes for optimum balance of fuel economy and performance.
YES!I still visit GenVibe periodically. I have not forgotten about my "original" family over here!

2009 PONTIAC G8
3.6L V6 (256 HP @ 6300 rpm, 248 ft-lbs. @ 2100 rpm)
RCARLTON12
Posts: 5
Joined: Thu May 29, 2003 11:26 pm

Post by RCARLTON12 »

I have a cosmo CAI does it have to be oiled like the K&N filter.
Raven
Posts: 2922
Joined: Tue Sep 30, 2003 10:58 am
Location: Lac Ste. Marie, Quebec

Re: More MPGs? (Sunny)

Post by Raven »

Yes Cosmo filter must be oiled. I have one.
JohnC
Posts: 736
Joined: Wed Oct 08, 2003 1:07 pm

Post by JohnC »

I drive a county road to work (102 miles per day) and have tried several things to increase my mileage. Only one thing made a difference...cruising speed. 75 mph = 30 mpg, 65 mph = 34.5 mpg.Luckily it is a seldom traveled road during the time I use it, so I can pretty much drive whatever speed I want. I usually see only one or two cars the whole trip.
Base Two Tone Satellite, Auto, & Pwr Pkg....my current commuting car.
User avatar
joatmon
Posts: 10168
Joined: Fri Mar 21, 2003 5:19 am
Location: Room 101

Re: (JohnC)

Post by joatmon »

ever put up with the drive at 55 to see what effect that has?I think at one point MadBill said lowering the car would increase the aerodynamic efficiency some small amount.
Image
JohnC
Posts: 736
Joined: Wed Oct 08, 2003 1:07 pm

Re: (joatmon)

Post by JohnC »

Quote, originally posted by joatmon »ever put up with the drive at 55 to see what effect that has?Just three trips (303 miles), it was a couple tenths of a mpg above the 65 mph average. 75 and 65mph averages were 16 trips at each speed.
Base Two Tone Satellite, Auto, & Pwr Pkg....my current commuting car.
Raven
Posts: 2922
Joined: Tue Sep 30, 2003 10:58 am
Location: Lac Ste. Marie, Quebec

Re: (JohnC)

Post by Raven »

I did a tankfull at 50mph and got 43mpg. I usually get 36mpg at 70mph average speed commuting.
ragingfish
Posts: 11022
Joined: Tue Oct 15, 2002 8:23 am

Re: (Sunny)

Post by ragingfish »

Those are metric gallons, not american gallons, right?
YES!I still visit GenVibe periodically. I have not forgotten about my "original" family over here!

2009 PONTIAC G8
3.6L V6 (256 HP @ 6300 rpm, 248 ft-lbs. @ 2100 rpm)
soldierguy
Posts: 178
Joined: Mon Oct 11, 2004 7:47 pm

Re: More MPGs? (joholste)

Post by soldierguy »

Quote, originally posted by joholste »Alright i have a CAI, borla Exhaust and i just got performance headers, and the JC Whitney Turbolator exhuast tip; is there anything anyone else can think of to gain MPGsTire pressure. Don't exceed what's on the sidewall, but higher tire pressure = less rolling resistance = higher mpg. But it'll also increase ride harshness, and may decrease max cornering limits.What's a turbolator tip? Just from the name I'm picturing spinning fins on the exhaust tip...can't imagine how that would help gas mileage.
soldierguyCurrent Vehicles:2005 Jeep Grand Cherokee Limited: HEMI, Quadra-Drive II, rear-seat DVD entertainment, 6-disc in-dash Boston Acoustics sound system...I LOVE THIS VEHICLE!!! But I also still like hanging here at GenVibe!2000 Dodge Dakota 4X4 Club Cab 4.7L V8 - SOLDhttp://www.cardomain.com/id/soldierguy
damronjr
Posts: 5179
Joined: Fri Jan 23, 2004 1:30 am

Re: More MPGs? (soldierguy)

Post by damronjr »

I don't know how you guys seem to get such good gas mileage! I usually average about 20-25 mpg! I checked what I filled from full to how many miles I had on my trip-meter from the fillup before and had like 23 mpg! My gas mileage has always sucked, way below what I expected from the numbers on the dealer sticker! Don't know why, maybe Flowmaster cat-back exhaust, 19" rims and tires could be off and changing it a little, or the fact that I try to break the sound barrier on my 5 mile trip to and from work and at every acceleration! I guess that could have a negative effect on mpg.
Jason Damron, San Diego, CA, Supercharged 2004 Vibe base - Gone to the wind My Vibe pics on Cardomain2009 Chevrolet HHR SS!
joholste
Posts: 1560
Joined: Mon Jul 05, 2004 9:21 am

Post by joholste »

the turbolator exhaust tip has a valve so that at low rpms where there is low exhaust pressure it stays in its shut position to keep the back pressure and increase torque, and it opens up as the pressure increases
2003 Chevy Silverado Ext. Cab, Z71Formerly2003 Base Vibe (Frosty)
User avatar
joatmon
Posts: 10168
Joined: Fri Mar 21, 2003 5:19 am
Location: Room 101

Re: (joholste)

Post by joatmon »

in http://forums.genvibe.com/zerothread?id=3780, there was discussion of the fitch fuel catalyst, which I considered at one point but never had the cash to try it and then forgot about it till now. If you try it let us know if it has any effect.
Image
cohocarl
Posts: 1478
Joined: Mon Jul 01, 2002 9:45 am

Re: More MPGs? (joholste)

Post by cohocarl »

Altitude. Less air pressure, less fuel, but also less power than at sea level. If you have a manual, shifting at lower rpm's when possible. Letting off the gas as early as possible and coasting before coming up to a stoplight or sign. Anytime you use your brakes, you're just wasting the fuel you used to accelerate in the first place. In other words, driving habits. Depending on how I drive my 4cyl, 5-speed Vue, I can go from 22mpg on one tank to 30mpg on the next.
Sold 6/16/04 03 Vibe 5-speed, Hotchkis Sway Bars & Springs, Hooker Aerochamber, Panasonic Stereo, Hitch, Silverstars,04 Saturn Vue 2.2L Ecotec, 5-speed, 01 Stratus R/T Coupe 5-speed (wife's car) 85 Corvette 268 CompCam, 882 heads, FlatTops, 24lb injectors, Hooker Aerochamber true duals, 58mm TB, Holley AFPR, Siamesed intake base, Polished TPI.
joholste
Posts: 1560
Joined: Mon Jul 05, 2004 9:21 am

Post by joholste »

i think when i get done with my Special forces Selection in Jan-Feb. i'm gonna try the fitch fuel catalyst, only thing i'm kinda worried about is if it drops into the gas tank and it actually lowers my gas mileage, can i take it out
2003 Chevy Silverado Ext. Cab, Z71Formerly2003 Base Vibe (Frosty)
User avatar
joatmon
Posts: 10168
Joined: Fri Mar 21, 2003 5:19 am
Location: Room 101

Re: (joholste)

Post by joatmon »

I looked at the fitch thing, and it was a coulple small cylinders. You had to drop them in from the top of the tank because there's check valves and stuff in the filler neck that would keep the catalyst things from getting into the tank.The fuel tank is under the rear seat, that's where the fuel pump and fuel filter are. I guess if you wanted to take them out you could fish them out from the top. Can't remember if there's some info a bout accsing it in one fo the fule pump or fuel filter discussions.
Image
Post Reply