Whats everyones MPG for their LT1's?

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04-09-2008, 07:05 PM

#61

SnakeOiler

Registered User

Join Date: Sep 2005

Location: Fredericksburg, VA

Posts: 391

Quote:

Originally Posted by onebadponcho

Wrong.

PCM tuning, better ignition, more efficient intake/exhaust, and better aerodynamics (i.e. lower car, using narrower tires) all can substantially improve gas mileage.

If you can beat the 33mpg I used to get on the highway, then do it. I could get 19mpg around town if I kept everything under control (namely, my foot). But, this was all in stock form, straight from the factory.

04-09-2008, 07:34 PM

#62

MeanGreen97Z

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Join Date: Aug 2000

Location: TX

Posts: 3,523

17/26 or so....

04-09-2008, 07:47 PM

#63

mdacton

Banned

Join Date: Oct 2006

Location: Goochland, Va.

Posts: 4,974

1 MPG or less.......

04-09-2008, 08:22 PM

#64

TobyZ28

Registered User

Join Date: Aug 2002

Location: BC

Posts: 2,325

Quote:

Originally Posted by Oxygen454

Just crunching numbers. Is this right? If so my car is a fuel hog!

275 km to a tank of gas
50 liters cost $57
275/57 = 5.5 5.5 liters to the kilometer?

5.5 kilometers thats 3.4 miles???

I hope Im wrong here somewhere

275-300 per tank too oxygen - I feel better now lol

City driving + lead foot is a bad combination in vancouver(hills)

04-09-2008, 08:55 PM

#65

andysc

Registered User

Join Date: Nov 2003

Location: Newport NC

Posts: 390

My 94 M6 with 3.73 gears gets 20 around town and 29 on the highway. This car is my DD so I will do a couple of more boltons, but that's it. But all things considered, you can't beat the mileage here. And I have 182k on it.
When I changed the gearing I did seafoam the intake and put new injectors in. I guess doing these things offset the gearing.

tia

andy schuck

04-09-2008, 09:36 PM

#66

RyanD

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Join Date: Jul 2006

Location: Ft. Wayne, IN

Posts: 196

19 city without a lockup converter

04-09-2008, 11:18 PM

#67

TA'95

Registered User

Join Date: Oct 2007

Posts: 292

12 city and about 15-16 highway. mods in sig

04-09-2008, 11:21 PM

#68

Pyrodawg

Registered User

Join Date: Aug 2005

Location: Utica, NY and Jacksonville, FL

Posts: 435

idk my highway mileage after the cam yet, ill update when i drive back to ny
I used to get ~15 city ~30 highway with bolt ons
I now get from 14-16 city/mixed striaght city is prolly closer to 12 with a CC306 and running very rich

04-10-2008, 11:13 AM

#69

stereomandan

Registered User

Join Date: Jun 2003

Location: Saginaw, Michigan

Posts: 3,620

Quote:

Originally Posted by EnFuegoZ28

What size tires are we talking here? I have some basic bolt ons (minus headers) on the car. Just bought here and haven't gone through a tank yet. My tires are 275/40zr17's. I know tire size helps/hurts mileage. The guys who average 20 city and 26 highway, what size are your tires? Just trying to gauge what I can expect.

When I went from 245's to 275's, I saw about a 0.5 mpg hit, you can see my numbers in my earlier post.

Dan

04-10-2008, 12:58 PM

#70

pcgamer4life

Registered User

Join Date: Jan 2006

Location: Benton, AR

Posts: 437

1994 Z28, hooker catback & e-cutout before rear axle. 134k on the odo, definitely hasn't been babied before I got it... I get ~15mpg highway, don't drive in town that much.