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Author Topic: just bought a new dd  (Read 1790 times)

03expyeb

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just bought a new dd
« on: August 29, 2007, 01:20:01 PM »
13-14 mpg is killing me in the expy. 28 gallons using premium fuel.  :-[

so i picked up a 99 grand prix se sedan with the 3100 v6. seems to run good. just had a tune and battery. needs 4 tires and new headlight assemblies(wicked nasty). ordered the headlights off of ebay last night....of course they come from CA, so i wont see them until next week....maybe. still deciding on what tires to get. will get pics as soon as i can...i will have it at my dealership tomorrow night. supposedly supposed to get near 30 mpg highway and only an 18 gallon tank...and regular fuel!
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

rjstat

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Re: just bought a new dd
« Reply #1 on: August 29, 2007, 07:33:21 PM »
what's happening to the expy.
97 - 4.6L Alpine Green Cougar XR-7 w/ Fiber Concepts Hood, SPC cold air intake, 2.5 SLP Dual Exhaust, Eclipse CD4000 w/ Polk's speakers, Koni Shocks, 11/4" Addco sway bars, and Vogtland more to come.
08 Volvo XC90 loaded.

03expyeb

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Re: just bought a new dd
« Reply #2 on: August 30, 2007, 06:45:17 AM »
i will keep it at my sister-in-laws house. use it on the weekends. she may use it a few times during the week for her daycare.
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

J dot Miller

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Re: just bought a new dd
« Reply #3 on: August 30, 2007, 07:29:29 AM »
13-14 mpg is killing me in the expy. 28 gallons using premium fuel.  :-[

so i picked up a 99 grand prix se sedan with the 3100 v6. seems to run good. just had a tune and battery. needs 4 tires and new headlight assemblies(wicked nasty). ordered the headlights off of ebay last night....of course they come from CA, so i wont see them until next week....maybe. still deciding on what tires to get. will get pics as soon as i can...i will have it at my dealership tomorrow night. supposedly supposed to get near 30 mpg highway and only an 18 gallon tank...and regular fuel!

That is a lot of MPG's for a V6.  I would seriously look at the tire choice.  Good tires can reduce your MPG's.  I  have seen 4-6 MPG's when going from Snows to regular summer tires.

Testing reveals that:
"This test reveals the possible advantage of using larger circumference tires/wheels to further reduce engine RPM for a given road speed. "

A rebuttal:
"Efficiency and engine RPM are not directly related, meaning that a 25% RPM reduction does NOT predict an efficiency improvement of "x%", nor does it predict any improvement at all - although RPM reduction will generally improve efficiency.
[Your] data proves this out. At first [you] get a 25% increase in RPM, but only a 15% MPG change (about 50% of the RPM change percentage). Later [you] test with a 48% RPM increase, but see a 60% reduction in MPG (150% of the RPM change percentage).

The efficiency of an internal combustion engine is largely influenced by operating RPM, BUT there is one "sweet spot", typically at or near "Peak Tq" that will return the best efficiency.

... I had a Bronco that got better mileage at 60 MPH than it ever did at 55 MPH, which certainly does not make sense based on the fact that the air drag at 60 is 112% of that at 55 mph, and the RPM is 10% higher as well."

Where is your sweet spot?
The 5.4 swap has been called a bad idea, and considered an underpowered considerable waste of time, since 2007.

Nice to see that most donít think that anymore.
Bondfreak13 07/28/09 09:05 PM

03expyeb

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Re: just bought a new dd
« Reply #4 on: August 30, 2007, 08:00:28 AM »
i am staying with the stock 205/70/15 size. i decided on the general altimax rt. it is fairly new, and has been getting rave reviews all over the internet. i usually dont care for contis/generals, but these come with a 45 day satisfaction gaurantee.
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

J dot Miller

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Re: just bought a new dd
« Reply #5 on: August 30, 2007, 07:03:04 PM »
What is so good about the tire?  Any further info?  :o
The 5.4 swap has been called a bad idea, and considered an underpowered considerable waste of time, since 2007.

Nice to see that most donít think that anymore.
Bondfreak13 07/28/09 09:05 PM

03expyeb

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Re: just bought a new dd
« Reply #6 on: September 01, 2007, 12:35:01 PM »
just had the oil changed, and a new fuel filter, and i mounted the new sneakers. i will be getting 4 hubcaps on my way home, and then proceed to vacuum it and wash the windows.
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

03expyeb

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Re: just bought a new dd
« Reply #7 on: October 17, 2007, 04:27:11 PM »
grand prix is for sale if anyone knows someone looking for a car. completely gone through. ready to roll. $2,200.
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

rjstat

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Re: just bought a new dd
« Reply #8 on: October 18, 2007, 07:22:02 AM »
That was quick
97 - 4.6L Alpine Green Cougar XR-7 w/ Fiber Concepts Hood, SPC cold air intake, 2.5 SLP Dual Exhaust, Eclipse CD4000 w/ Polk's speakers, Koni Shocks, 11/4" Addco sway bars, and Vogtland more to come.
08 Volvo XC90 loaded.

J dot Miller

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Re: just bought a new dd
« Reply #9 on: October 18, 2007, 08:19:44 PM »
Yea, whats up with dat?
 :doo:
The 5.4 swap has been called a bad idea, and considered an underpowered considerable waste of time, since 2007.

Nice to see that most donít think that anymore.
Bondfreak13 07/28/09 09:05 PM

03expyeb

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Re: just bought a new dd
« Reply #10 on: October 18, 2007, 10:29:07 PM »
i have 2 intereseted parties already from craigslist! woo hoo!
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

rjstat

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Re: just bought a new dd
« Reply #11 on: October 20, 2007, 07:29:04 AM »
Did you notice how he dodged the question.
97 - 4.6L Alpine Green Cougar XR-7 w/ Fiber Concepts Hood, SPC cold air intake, 2.5 SLP Dual Exhaust, Eclipse CD4000 w/ Polk's speakers, Koni Shocks, 11/4" Addco sway bars, and Vogtland more to come.
08 Volvo XC90 loaded.

J dot Miller

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Re: just bought a new dd
« Reply #12 on: October 20, 2007, 11:27:26 AM »
Head gasket???  ???
The 5.4 swap has been called a bad idea, and considered an underpowered considerable waste of time, since 2007.

Nice to see that most donít think that anymore.
Bondfreak13 07/28/09 09:05 PM

03expyeb

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Re: just bought a new dd
« Reply #13 on: October 20, 2007, 09:17:45 PM »
nope. everything is ok. just dont need it anymore. family member is going to let me use their vehicle.
SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust. 339 RWHP, 440 RW FT-LBS TQ. YEAH BABY!!

Acton Lincoln-Mercury
978-893-1127

vantage08

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Re: just bought a new dd
« Reply #14 on: October 21, 2007, 07:59:53 AM »
Can we see pics anyway?  ^-^
1988 Ford Thunderbird-SOLD =:(
2005 Pontiac Grand Prix GTP- COMP G =:)