General LSX Automobile Discussion - Post your MPG -VS- Mods

Not sure if this has been done yet, but I see a lot of people asking about MPG vs. their mods. so I thought it'd be a cool idea to share. What kind of MPG are you getting with your car as a DD ;)


City MPG:
HyWy MPG:

Model:
Body Type - Coup/TTop/Vert:
Weight:
C.I.:
Speed Density or MAF:
FWHP:
RWHP:
N/A or Boost:
Intake Type:
TB Type & Size:
Trans Type:
Shift Point:
Rear Gearing:
Wheels & Tires:



DM

MPG: 25
C.I.: ?
Speed Density or MAF: MAF
FWHP: 400
RWHP: 340
N/A or Boost: N/A
Intake Type: LS6
TB Type & Size: Stock
Trans Type: M6
Shift Point: 2500rpm
Rear Gearing: 3.42
Wheels & Tires: 17' wheels (stock spec SS sized tires)

I'm getting 19mpg city. I haven't done any hwy since cam install my car is a 6spd 3.90 gear ratio I typically shift around 2200 rpms. Its 346 cubic inches with stock LS6 manifold and stock tire size. Its on a rich nitrous tune also.

I am getting about 17-18 city and 20mpg mixed, 25/26 mpg all highway.

mods: stock with SLP lid, SLP dual/dual and CMS tuned. However, mine is a vert, so I have about 250lb extra weight, plus another 50lb of sub woofer. :)

2002 z28 a4 t-top
stock except for
descreened maf
gutted cats
stock tune
drop in k&n
2.73 rear gear

17 city 28-30 highway

Thanks for all the replies, but it would be easier and neater if you just use my format in post one... Just cut and past it and fill in the info ;)


DM

City MPG: 14
HyWy MPG: 24

Body Type - Coup/TTop/Vert: Coupe
C.I.: 427
Speed Density or MAF: MAF
FWHP:
RWHP: 558.3 (motor)
N/A or Boost:
Intake Type: 102
TB Type & Size: 102
Trans Type: 6M
Shift Point:
Rear Gearing: stock
Wheels & Tires: stock

I think the format is a little hard to follow. For exapmle, shift points are going to be way different for people with automatics. My trans shifts at different speeds all the time depending on what gear I'm in and the load I'm putting on it. FWHP and RWHP seem a little redundant, if you know one you can figure the other and most people only know RWHP for certain.

Weight would be another big factor to consider. A4000lbs Camaro is going to get worse gas milage than a 3100 Camaro tin can with the same drivetrain.

I am getting about 17-18 city and 20mpg mixed, 25/26 mpg all highway.

mods: stock with SLP lid, SLP dual/dual and CMS tuned. However, mine is a vert, so I have about 250lb extra weight, plus another 50lb of sub woofer. :)

nice! I thought it was just me. :angel:I'm guessing your A4?

City MPG:right foot dependent
HyWy MPG:21.5

Body Type - TTop
C.I.:stock
Speed Density or MAF:stock
FWHP:?
RWHP:?
N/A or Boost:stock
Intake Type:stock
TB Type & Size:stock
Trans Type:A4 w/2800
Shift Point:stock
Rear Gearing:4.56s'
Wheels & Tires:stock

City MPG:right foot dependent
HyWy MPG:21.5

Body Type - TTop
C.I.:stock
Speed Density or MAF:stock
FWHP:?
RWHP:?
N/A or Boost:stock
Intake Type:stock
TB Type & Size:stock
Trans Type:A4 w/2800
Shift Point:stock
Rear Gearing:4.56s'
Wheels & Tires:stock


Damn!! that good mpg with stalled A4 and 4.56's

nice! I thought it was just me. :angel:I'm guessing your A4?

No sir. M6. Tuned slightly rich I guess, 12.6 AFR.

25 highway.
Around 16-17 city.
Mods in sig.

City MPG: 8
HyWy MPG: 13

Body Type - Coup/TTop/Vert: T-Top
C.I.: 408 Stroker
Speed Density or MAF: Speed Density
FWHP:
RWHP: Not Dynod yet, enough to roast the tires at 60 in 3rd gear
N/A or Boost: Boost
Intake Type: Walbro Dual Intank Setup
TB Type & Size: 90mm Holley
Trans Type: M6
Shift Point: 7800
Rear Gearing: 3.89
Wheels & Tires: 15x10 Nitto 555R 325/50/15

City MPG:20
HyWy MPG:30

Body Type - Coup/TTop/Vert: T-Top
C.I.: 346
Speed Density or MAF: MAF
FWHP: 0
RWHP: ?
N/A or Boost: N/A
Intake Type: Stock
TB Type & Size: Stock
Trans Type:6 speed man w/zoom clutch, stock flywheel
Shift Point: City 1-2 at 3, then 2-4 at 3k. Open road, 1@10mph,2nd@20mph,
3rd@30mph,4th@40mph,5th@50mph and 6th@60mph. Fun time=rev limiter
Rear Gearing: 3.42
Wheels & Tires: Stock

City MPG: 15
HyWy MPG: 26

Body Type - T-top, T/A
C.I.: LS6, 346
Speed Density or MAF: MAF
FWHP: 530-ish?
RWHP: 446 (mustang)
N/A or Boost: N/A
Intake Type: FAST 90
TB Type & Size: TSP 90mm
Trans Type: M6, Twin Disc clutch
Shift Point: 2000-2500
Rear Gearing: 3.42
Wheels & Tires: stock 16s, 255/50/16

i have seen as high as 26.64 mpg highway, but only when i was able to cruise at about 80. when i had to maintain 65-70, it dropped to about 23.5. i think lower gears would help MPG at 65-70, but probably not at 80. my motor also only has about 4,500 miles on it at this point. mods in sig.

City MPG stock/mod: 22/15
HyWy MPGstock/mod: 29/22

Body Type - Coup/TTop/Vert: Coupe
C.I.: 346
Speed Density or MAF: MAF
FWHP:
RWHP: 430 (motor)
N/A or Boost: nitrous tune
Intake Type: LS6
TB Type & Size: Ported stock
Trans Type: A4 3600 stall
Shift Point: heavy foot light to light
Rear Gearing stock/mod:2.73/3.42
Wheels & Tires: stock run flats

City MPG 20
Highway MPG 31

Body Type - 01 SS T-top
C.I.: Stock
Speed Density or MAF: Stock descreened MAF
FWHP: Seriously?
RWHP: 323 recently
N/A or Boost: Stock
Intake Type: SLP lid, K&N filter, Stock LS6 Manifold
TB Type & Size: Stock
Trans Type: M6
Shift Point: Depends
Rear Gearing: Stock 3.42
Wheels & Tires: Stock 17" 275/40 Goodyear Eagle F1
Exhaust: Slp Y pipe, Otherwise stock

City MPG: 15-18
Highway MPG: 25-28

Mods in sig..

City MPG:15
HyWy MPG:25

Body Type - Coup/TTop/Vert: Ttop
C.I.:346
Speed Density or MAF:MAF
FWHP:480ish????
RWHP:424
N/A or Boost: NA H/C Car
Intake Type:LS6
TB Type & Size: Ported Stocker
Trans Type:M6
Shift Point:6700
Rear Gearing:373's
Wheels & Tires: Privat Netz 19s with 285/30/19

City MPG:
HyWy MPG:

Not sure but mixed is about 20 MPG. Used to get 25 MPG stock with 2.73s. Big stall and gears as well as some bolt on's has lowered that number.

Body Type - Coup/TTop/Vert: T-top
C.I.: 346
Speed Density or MAF: MAF
FWHP: 330ish?
RWHP: ?
N/A or Boost: N/A Stock Internal - Bolt on's only
Intake Type:LS6
TB Type & Size: Stock P&P
Trans Type: A4 w/ SS4000 stall
Shift Point:
Rear Gearing: 3.73
Wheels & Tires: BFG KDW 275/40/17

City MPG: 14
HyWy MPG: 29-30

Model: 02 WS6
Body Type - Coup/TTop/Vert: TTop
Weight: 3550
C.I.: 346
Speed Density or MAF: maf down low, SD beyond
FWHP: ??
RWHP: ??
N/A or Boost: Boooost
Intake Type: LS6
TB Type & Size: OEM
Trans Type: T56
Shift Point: Wherever is fun
Rear Gearing: 3.50
Wheels & Tires: factory/ 275 40 17


Those are if I am taking it easy, road trips around 80ish mph. Worst I ever logged "city" was 7.2 mpg but oh baby was it a fun tank o gas :)
Beat on it harder on the highway and mpg can drop to 25. More info on mods in sig.

City/Hwy mix MPG: 14mpg

Model: 1998 Camaro
Body Type - Coup/TTop/Vert: T Top
Weight: 3450
C.I.: 364
Speed Density or MAF: SD
FWHP: 0
RWHP: 550 n/a
N/A or Boost: +175 shot
Intake Type: Victor Jr
TB Type & Size: FAST 4150
Trans Type: Lock-up TH400
Shift Point: 7500rpm
Rear Gearing: 4.10
Wheels & Tires: Alumastars w/185/60 front and 275/60 MT drag radial

City MPG 18
Highway MPG 28

Body Type - 99 HT
C.I.: Stock
Speed Density or MAF: MAF
FWHP:
RWHP:
N/A or Boost: Stock
Intake Type: SLP lid, LS6
TB Type & Size: Stock
Trans Type: M6
Shift Point: 2000
Rear Gearing: Stock 3.42
Wheels & Tires: Stock 16" 245/50
Exhaust: Stock


FWHP: Seriously?


I think it's for "fly" wheel HP :D

Loaded, H/C, custom PatG cam. pretty much full bolt on and suspension. Missing a couple mod parts like a UDP and rear sway (stock for now). All fluids are synthetic, RP for the trans and rear, M1 for the engine. TSP Tuned, no cats, a lot of TLC.


City MPG: ~14
HyWy MPG: most was 28 :D

Model: Z28
Body Type - Coup/TTop/Vert: T-Top
Weight: ~3300
C.I.: 346
Speed Density or MAF: MAF
FWHP: EST 475
RWHP: 414/372
N/A or Boost: NA
Intake Type: LS6
TB Type & Size: SLP 78mm
Trans Type: M6 w RP
Shift Point: ~ 2500 (HW RPM is kept at 1900 ~ 75mph)
Rear Gearing: 3.42
Wheels & Tires: AR Rebels 18", GS-D3 tires then. NTO5 now.