Page 1 of 2 12 LastLast
Results 1 to 20 of 23

3.73s and gas mileage

This is a discussion on 3.73s and gas mileage within the Drivetrain forums, part of the LSx Technical Help Section category; First of all I would like to thank you guys for your feedback on the ls6 intake. My new question ...

  1. #1
    Junior Member
    Join Date
    May 2007
    Location
    louisville ky
    Posts
    5

    red
    98 z28

    3.73s and gas mileage

    First of all I would like to thank you guys for your feedback on the ls6 intake.
    My new question is will 3.73s effect my gas mileage that much? I have 98 z28 with an automatic trans.

  2. #2
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Location
    Lathrop, Missouri
    Posts
    2,479

    NBM / Silver
    00 SS / 71 SS Elcamino

    no, Maybe 3 miles a gallon. But we didn't buy our cars for gas milage Right?
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

    1971 SS ElCamino 402 Big Block 550HP

    2006 Silverado 2500HD 496 cubic inches of pure muscle

  3. #3
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    No, it will not affect your gas mileage much, but you want to go faster, Right?!!

    No matter what, with 3:73's your gonna be into the throttle more!

  4. #4
    Exalted Cyclops 67CamaroRSSS's Avatar
    Join Date
    Feb 2007
    Location
    San Diego, CA
    Posts
    5,824

    2002 Z28 A4 NBM
    Sadly now demodded :(

    You don't buy a V8 powered Muscle Car because of it's economy of operation, you buy it because hammering the loud pedal makes your adrenaline flow and your heart pound.

  5. #5
    Rice Killa JwMonE99's Avatar
    Join Date
    Aug 2006
    Location
    Myrtle Beach
    Age
    27
    Posts
    5,561

    Black With T-Tops
    96 Z28 M6

    whats gas mileage? lol

  6. #6
    Junior Member
    Join Date
    Jul 2007
    Location
    corinth, Mississippi
    Posts
    73

    white
    2001 b4c camaro

    I echo what 67camarorsss says!!!!!!

  7. #7
    Member nomorefords's Avatar
    Join Date
    Oct 2006
    Location
    San Diego, CA
    Age
    35
    Posts
    121

    Electron Blue
    2002 EB Z06

    well since i've put mine in i've noticed i'm going to the gas pump a day or so earlier, but i don't know if that's the gears or my foot trying to go through the floor!!! but, you'll about 3 mpgs less.
    2002 Electron Blue Z06, Performance Bir Break Kit, Vararam Intake, Borla Quad Tip Stingers

    Black 2001 Z28/SS Clone, A4, SLP Lid, True Duals, SFC's, 3.73's, Black SS rims, Falken 275's, Tune 327/342 HP SOLD

  8. #8
    Member 35thz28camaro's Avatar
    Join Date
    Jul 2007
    Location
    mobile
    Posts
    312
    2002 z28 camaro

    i lost about 2mpg

  9. #9
    Senior Member INMY01TA's Avatar
    Join Date
    Jan 2006
    Location
    The great red state of MD.
    Posts
    5,755

    Black
    2001 Trans Am (sold)

    Can't speak for autos but going from 3:42s to 4:10s in my M6 my mpgs didn't change even 1 mpg. Less than a 1mpg drop. Cant believe it'd be that different for an auto. Losing 3mpg seems like alot.

  10. #10
    JOSEY FUCKING WALES! Frankthetank's Avatar
    Join Date
    Nov 2005
    Location
    College Station TX
    Age
    32
    Posts
    1,873

    Black
    2000 &2002 Z28

    lol i dont blame him.....lol some of us drive ours everyday to work and back......
    Im not like that anymore.....I bought a little 400$ geo metro with 46mpg on the hwy! w00t w00t.......for work of coarse..... but then again its timing belt broke the other week.....and on top of that my camaro's tranny is out....again lol

    TSP Rumbler, LT's, TSP Tqr2, PRC 921 Springs, Comp Lifters, Chromoly 7.4" Pushrods, Titanium Retainers/Seats/Seals, ARP head bolts, BMR full Rear suspension

    "I could break a bowling ball with a plastic hammer in a sandbox"

  11. #11
    Member chevyss1234's Avatar
    Join Date
    Feb 2007
    Location
    Clemson SC
    Posts
    279

    black
    2001 Camaro SS

    i've got an 01 ss m6 does anyone know what kinda gears i have?

  12. #12
    Member 35thz28camaro's Avatar
    Join Date
    Jul 2007
    Location
    mobile
    Posts
    312
    2002 z28 camaro

    Quote Originally Posted by chevyss1234 View Post
    i've got an 01 ss m6 does anyone know what kinda gears i have?
    probably 3.42

  13. #13
    Member
    Join Date
    Aug 2005
    Location
    Greeenville PA
    Posts
    102

    Red
    2000 SSCamaro M6

    Look at your driverside door panel, it lists the codes,almost positive GU4 is for 3.42's, your 01 if its a SS has 3.42's., it its a six speed, 3.23's if its a auto.

  14. #14
    Senior Member clg82's Avatar
    Join Date
    Feb 2007
    Location
    California
    Age
    35
    Posts
    2,453
    2000 Trans Am

    How about traction? I have a shift kit and am about to install 3.73 gears. will i still get ok traction?

  15. #15
    Member 35thz28camaro's Avatar
    Join Date
    Jul 2007
    Location
    mobile
    Posts
    312
    2002 z28 camaro

    Quote Originally Posted by clg82 View Post
    How about traction? I have a shift kit and am about to install 3.73 gears. will i still get ok traction?
    after i installed my 3.73s i could not get any traction under 30mph with street tires

  16. #16
    Senior Member slims00ls1z28's Avatar
    Join Date
    Apr 2007
    Location
    TN
    Posts
    1,212

    2005 GTO M6 Black
    2000 Z28 A4 Red

    Kiss traction goodbye with the 3.73's and street tires. you won't notice to bad a difference with the gears unless you keep your foot in it all the time. I put 4.11's/9", MS3, 3600 stall, Headers, LS6 and tune pretty much at the same time and dropped from about 28 average to about 20-21 average on a 100 mile trip to work. Of course that changes when I stomped the go pedal, but just putting around town and driving back to work it wasn't as drastic as I expected.

    I also disagree with 67Camaro somewhat on the v8 DD aspect. I got rid of my crappy 400$ tercel as a DD for my current LS2 Goat just because I couldn't stand driving that turd and missed the v8 feel even just driving to work and back. I don't think I'll be going back to 4 cylinder beaters anytime soon, I'd rather spend just a tad more in gas to drive something I like. I might just be crazy like that though.

  17. #17
    Senior Member clg82's Avatar
    Join Date
    Feb 2007
    Location
    California
    Age
    35
    Posts
    2,453
    2000 Trans Am

    So street racing is out for me then huh? Cause I do quite a bit of street racing from a dead stop. And won't be getting any traction with street tires huh?
    2000 Arctic White trans am, ws6 hood, ws6 air box, slp lid, slp smooth bellows, slp loudmouth exhaust,shift kit, rebuilt trans, LS6 intake, 3.73 gears, Shaner S3 p/p throttle body, and a tune . SFC. C6 ZO6 rims 18" in back 17" in front. Drilled and slotted rotors.

  18. #18
    Member firemedic0135's Avatar
    Join Date
    Jun 2007
    Location
    East Texas
    Age
    42
    Posts
    195

    Arctic White
    2000/Trans Am

    Quote Originally Posted by clg82 View Post
    So street racing is out for me then huh? Cause I do quite a bit of street racing from a dead stop. And won't be getting any traction with street tires huh?
    I Had 245/50/16 when I switched to 3.73 in my A4 and they were gone in a month.
    You can roast the tires all day but unfortunantly you will have little traction until you upgrade your wheels and tires.
    I could not hook up until going with a 315/35/17 and the 3.73 was about the only mod,well it has a tune also.

    You will have to be carefull when really getting on it or you may end up in the other lane or the ditch.

  19. #19
    Team Skeet Captain JHayesLS1's Avatar
    Join Date
    Dec 2006
    Location
    Winter Garden, FL
    Age
    30
    Posts
    2,061

    Black
    1999 Camaro Z28

    You just have to control it I have found. Not saying that I have the solution by any means, but I have 4.11's in my M6 WS6 and I do have traction problems but I have learned to control the throttle it makes it a bit easier for me to grab traction. Is the OP auto or M6?

  20. #20
    Senior Member clg82's Avatar
    Join Date
    Feb 2007
    Location
    California
    Age
    35
    Posts
    2,453
    2000 Trans Am

    Quote Originally Posted by JHayesLS1 View Post
    You just have to control it I have found. Not saying that I have the solution by any means, but I have 4.11's in my M6 WS6 and I do have traction problems but I have learned to control the throttle it makes it a bit easier for me to grab traction. Is the OP auto or M6?
    Auto with traction control

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Gas Mileage
    By VOODOOII in forum External Engine
    Replies: 27
    Last Post: 08-24-2009, 09:10 AM
  2. Mileage
    By JwMonE99 in forum LT1
    Replies: 32
    Last Post: 01-27-2008, 06:06 AM
  3. LS1 Gas Mileage
    By LS1Powerhouse in forum Firebird / WS6
    Replies: 39
    Last Post: 06-29-2007, 07:14 PM
  4. bad gas mileage ls1
    By waylonSS in forum General Help
    Replies: 16
    Last Post: 09-23-2006, 05:10 PM
  5. 3.73 gas mileage?
    By jakef777 in forum Drivetrain
    Replies: 1
    Last Post: 09-11-2006, 02:07 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •