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Old 06-06-2013, 03:56 PM   #1 (permalink)
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Join Date: Sep 2011
Location: New Jersey
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Camaro - '00 Chevrolet Camaro SS
90 day: 16.18 mpg (US)

S10 - '95 Chevrolet S10 LS
90 day: 15.84 mpg (US)

Formula - '99 Pontiac Firebird Formula
90 day: 21.14 mpg (US)
Thanks: 3
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5 MPG increase in Firebird Formula

Back in Fanuary I picked up a 1999 Firebird Formula 6 Speed 5.7L.

It has bolt ons and a very very rich tune (Haven't had the chance to get it detuned)

When I started driving it I was getting 15-16 mpg (City driving).

I bought an ultragauge and after getting it calibrated correctly, I'm seeing about 21.5 MPG. I usually average about 23 for most of the tank, but when I hit traffic and, not so smart drivers, it plummets quickly.

Pretty content with that. its become my daily driver as I'm working on my truck.

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Old 06-06-2013, 05:13 PM   #2 (permalink)
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Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

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90 day: 18.5 mpg (US)

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Last 3: 69.62 mpg (US)

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90 day: 33.65 mpg (US)

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2000mc (06-06-2013)
Old 06-06-2013, 08:52 PM   #3 (permalink)
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Location: Lawrence, KS
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Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

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90 day: 13.74 mpg (US)
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Quote:
Originally Posted by Debonair View Post
... it plummets quickly.

Pretty content with that.
well frank, its better than... i dunno, but theres something worse im sure
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Old 06-06-2013, 09:55 PM   #4 (permalink)
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Hey guys 23 mpg out of this kind of car is great, considering what it is. Big overpowered engine, fairly heavy coupe. And made a big % improvement over when he first got it.
Good job Debonair.
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mcrews (06-06-2013)
Old 06-06-2013, 10:25 PM   #5 (permalink)
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Sub - '84 Chevy Diesel Suburban C10
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Work on the tune, there is another 2 or 3 MPGs easy to get.
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Old 06-06-2013, 11:38 PM   #6 (permalink)
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The Q Sold - '02 Infiniti Q45 Sport
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Quote:
Originally Posted by Sporty Modder View Post
Hey guys 23 mpg out of this kind of car is great, considering what it is. Big overpowered engine, fairly heavy coupe. And made a big % improvement over when he first got it.
Good job Debonair.
ditto.
Smrt move getting a gauge....
did you pump up the tires?? 40+ psi
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ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
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Old 06-07-2013, 12:12 AM   #7 (permalink)
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Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
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Old EPA is 19/22/28, which is pretty easy to meet or beat.
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Old 06-07-2013, 02:33 AM   #8 (permalink)
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Join Date: Sep 2011
Location: New Jersey
Posts: 53

Camaro - '00 Chevrolet Camaro SS
90 day: 16.18 mpg (US)

S10 - '95 Chevrolet S10 LS
90 day: 15.84 mpg (US)

Formula - '99 Pontiac Firebird Formula
90 day: 21.14 mpg (US)
Thanks: 3
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Quote:
Originally Posted by mcrews View Post
ditto.
Smrt move getting a gauge....
did you pump up the tires?? 40+ psi
not that high I just added about 5 psi

Quote:
Originally Posted by Frank Lee View Post
Old EPA is 19/22/28, which is pretty easy to meet or beat.
Not around here. Between traffic, people pulling out in front of me to go 5 mph under the speed limit downhill, and people just generally driving like idiots really makes it difficult to hit and stay over 21. Just today i started with 22.8 MPG, near the end of it I was down to 20.9.
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Old 06-07-2013, 11:13 AM   #9 (permalink)
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Join Date: Jan 2008
Location: up north
Posts: 12,761

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,546 Times in 2,215 Posts
Then it appears you are getting the predicted ecocomy.
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Old 06-07-2013, 11:44 AM   #10 (permalink)
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Join Date: Sep 2011
Location: New Jersey
Posts: 53

Camaro - '00 Chevrolet Camaro SS
90 day: 16.18 mpg (US)

S10 - '95 Chevrolet S10 LS
90 day: 15.84 mpg (US)

Formula - '99 Pontiac Firebird Formula
90 day: 21.14 mpg (US)
Thanks: 3
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by Frank Lee View Post
Then it appears you are getting the predicted ecocomy.
Of a completely stock car, mine is not stock.

And those estimates are based on 55% city and 45% highway, whereas I'm closer to 80% city.

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