Whats everyones MPG for their LT1's? - CamaroZ28.Com Message Board


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Old 03-15-2008, 12:13 AM   #1  
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Whats everyones MPG for their LT1's?

And your Mods. I'm trying to figure out the mods for best mileage for Lt1s Cause I'm about to get one and I want to see what I'm gonna get myself into lol.

My 3.4L I think I get something like 22mpg in the city and I spend at least 40-50 bucks for gas a week.
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Old 03-15-2008, 12:24 AM   #2  
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I've got lots of mods but I average about 16 for both city and highway mixed. If I go straight highway, I can get about 20.

95 Z28/1LE - T56
Induction - SLP CAI, K&N dual air filters, RK Sport Air Foil, TB Bypass, 1.6 RRs Pro Magnum, Manley Pushrods
Exhaust - Edelbrock Ceramic Coated TES Headers, Off Road Pipe, Ex. Insert Cone, Edelbrock Cat Back
Ignition - Jacob's Ultra Pack Ignition, Coil, Trigger, 8.5mm Plug Wires, Bosch +4 Plugs
Drivetrain - Hurst Short Throw Shifter, SLP Alum Driveshaft, LG Torque Arm, GM 4.10s with Eaton Posi, SLP Lightened Flywheel and HP Clutch Package
Cosmetic - RK Sport Back, ported heat extractors
Suspension - Hotchkis Front Springs, Welded Sub-Frame Connectors, Hotchkis Lower Control Arms, Hotchkis Strut Tower Brace, RK Sport LCA relocation brackets, Rear weight jacks by Ground-Control with Eibach 175# springs, and Spohn Adjustable Panhard Rod, Bump Steer Tie Rod Ends by Baer, 285/50R17 Goodyear D1-GS D3s, custom powder coated 17" wheels
290 RWHP/ 324 RWTQ - (July 2002) Before most of the mods
365 RWHP/ 360 RWTQ - (March 2008) Heads & Cam
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Old 03-15-2008, 12:39 AM   #3  
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Wow man...Thats alot of mods. But Lt1's stock get like 18-20 mpgs right?
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Old 03-15-2008, 12:41 AM   #4  
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Easy. When mine was stock I'd get up to 24 on the highway to Vegas. City was about 18.
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Old 03-15-2008, 12:48 AM   #5  
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In the city I drive very short trips. Turn on, warm up for 2-3 mins, drive 1-2 miles, off, etc etc. Doing this I usually average ~11-12mpg. Freeway driving from San Diego to LA (decent amount of hills) with cruise control on and averaging 75-80mph, I'll get 24-25mpg. I'd imagine it would be a bit better if I kept my speed around 70-75mph.

Mods in sig.
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Old 03-15-2008, 12:50 AM   #6  
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My car bone stock would do damn near 30mpg all highway driving with the 6 spd. I think the car would avg near 20mpg city. Now with the heads and cam, I get about 15-25mpg. The 25 is all highway.
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Old 03-15-2008, 12:55 AM   #7  
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17.75 mpg with an a4 car; 3.23 rear mostly highway.

fresh rebuild Crane 227 cam, Crane 1.6 roller rockers, K&N FIPK, Hooker muffler, NO TUNE YET.


Derek
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Old 03-15-2008, 01:09 AM   #8  
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Wow, let me just say that you guys are lucky...

I'm not even in the double digits, ha. I currently get 6 miles per gallon in the city and 10 miles per gallon on the highway while shifting at 2,000 RPMs at most... And I still have to fill up every other day.

My mods include:

- Racing injectors
- Fuel pressure regulator
- 3:73 gears
- Tune
- Straight pipes after the cats (I'm sure this really kills the M.P.G. )

Note: I only included the mods that have dramastically affected my M.P.G. I'm sure there's more but I'm to tired to think of them all.
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Old 03-15-2008, 01:23 AM   #9  
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6 MPG!?!?!? wow...
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Old 03-15-2008, 01:24 AM   #10  
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Quote:
Originally Posted by mean96z28 View Post
Wow, let me just say that you guys are lucky...

I'm not even in the double digits, ha. I currently get 6 miles per gallon in the city and 10 miles per gallon on the highway while shifting at 2,000 RPMs at most... And I still have to fill up every other day.

My mods include:

- Racing injectors
- Fuel pressure regulator
- 3:73 gears
- Tune
- Straight pipes after the cats (I'm sure this really kills the M.P.G. )

Note: I only included the mods that have dramastically affected my M.P.G. I'm sure there's more but I'm to tired to think of them all.
There's definitely something wrong with your car if those are your only mods.
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Old 03-15-2008, 01:32 AM   #11  
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~15 mixed with me not keeping my foot out of it. I have no doubt it would get >25mpg on a highway trip.
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Old 03-15-2008, 01:45 AM   #12  
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Quote:
Originally Posted by mean96z28 View Post
Wow, let me just say that you guys are lucky...

I'm not even in the double digits, ha. I currently get 6 miles per gallon in the city and 10 miles per gallon on the highway while shifting at 2,000 RPMs at most... And I still have to fill up every other day.

My mods include:

- Racing injectors
- Fuel pressure regulator
- 3:73 gears
- Tune
- Straight pipes after the cats (I'm sure this really kills the M.P.G. )

Note: I only included the mods that have dramastically affected my M.P.G. I'm sure there's more but I'm to tired to think of them all.
Straight pipes after the cat would have no effect on mileage. Did you get a tune after your "racing injectors"? what size are you're injectors?
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Old 03-15-2008, 02:16 AM   #13  
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I recently got 31 on my highway trip

Just a 160 thermo and Flowmaster exhaust, not modded much at all

I'll get maybe 16-17 in city though
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Old 03-15-2008, 04:50 AM   #14  
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Didn't get mine for gas mileage
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Old 03-15-2008, 08:24 AM   #15  
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Mine has pulled around 17-20mpg around town. As stated above though, I didn't by mine with the intent of pulling good miles per gallon either.
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