[BFix] Thinking outload gas mileage and EB....

Thu May 8 14:25:10 MST 2008

Oh,
I see what's going on here.  it's more about bolting some new stuff into the
Bronco, than actually getting better mileage.  The better mileage is just a
form of self justification for the new stuff.  Not to worry, we all do it,
most of us just don't rationalize it with better mileage.  He he.  Are you
planning on a 5.0 engine with your EFI, or are you putting EFI onto a 302.
Because I would think the 5.0 would be much better mileage getter than an
old 302.  But you do have me thinking and I'm going to be checking my
mileage with the 351 Windsor with SEFI.  Now I want to know.  I guess for me
it's just not that big of a deal since I don't drive the bronco enough to
worry about it.  I think the last time I filled it up was a couple of months
ago.

On Thu, May 8, 2008 at 11:53 AM, Jim Lemanek <hucklburrybronco at sbcglobal.net>
wrote:

> I agree Roger, just bringing up something to talk about on the list cause
> its fun, and wow, look at Brian's retentive self!
>
> I drive about 50 miles each way back roads to hunt, and my EB is currently
> getting about 11 mpg, so its almost 10 gallons, or $36 just to go hunting
> (if I don't take the company truck).  But if I install the ZF and EFI (have
> 1/2 the stuff so far) and get 17mpg, then my day of hunting is now a little
> over $20.  I know, it will take forever to pay off, its more about what
> comes out of my pocket today.
>
> Besides, I am financing the ZF purchase with old EB parts sales.
>
> But should I keep the 3.5 gears and 34" tires or go to 4.11 with the ZF?
> Thats what I am wondering now....I have the money for the gears while I
> install disc brakes on the front.
>
>
> *Roger <roger at broncohorde.com>* wrote:
>
>  My wife put the whole think into perspective before my latest journey to
> the SoCal desert.  I was talking about building something I could get to
> remote places and still carry all I'd need for the trip and get better gas
> mileage.  She told me "Just drive the Bronco.  You have a lot of money in
> something you like so why start over?"  Made sense, here's why.  I love
> driving the Bronco.  I don't drive it that often and the difference in cost
> in gas is as followes:
>
> Bronco – Driven 3000 miles @ 15mpg avg. and $3.75 a gallon is $750.
>
> Something else close to it (Explorer mayby) loaded and modified for offroad
> maybe at best 18mpg, $3.75 a gallon is $624.9999999.
>
> Go to the extreme and stuff the econo-box full and tie a bunch of crap on
> the roof, squeeze in and get stuck on every small rut in the trail figure 30
> mpg and $3.75 a gallon you spend $375 on gas and have a crappy time.  Why
> bother.
>
> Figure you keep your Bronco just to drive to the event of the year and a
> few times in the summer you have to build or buy the replacement.  By the
> time your done you have $10,000 invested and to amortize that out to make it
> pay you have 13 years of gas not including anything you need to repair,
> replace or maintain.
>
> Ok, I'll double the 3000 miles per year to add in additional Bronco fun.
> Over the econo box I'll spend $750 more a year.  If I had to work nights at
> a 7/11 for one month a year to pay that it would be worth it.
>
>
>
>
>
>  *From:* bfix-bounces at broncofix.com [mailto:bfix-bounces at broncofix.com] *On
> Behalf Of *bfranklinisg at earthlink.net
> *Sent:* Thursday, May 08, 2008 9:26 AM
> *To:* Dan Davis
> *Cc:* mail at broncofix.com
> *Subject:* Re: [BFix] Thinking outload gas mileage and EB....
>
>  Dan, I think the question is: what do we consider good great gas mileage?
> And is that a relative question as to what vehicle your driving at the
> time?  I thing for a bronco with a ZF and a EFI 5.0 18 mpg would be great
> gas mileage, and is quite possible to do depending on driving style.
>
>  Ben
>
>
>
>  ----- Original Message -----
>  *From:* Dan Davis <69bronco.davis at gmail.com>
>  *To: *
>  *Cc: *mail at broncofix.com
>  *Sent:* 5/7/2008 10:47:46 PM
>  *Subject:* Re: [BFix] Thinking outload gas mileage and EB....
>
> Come on,
> If you really want good mileage, spend a couple grand on a used Honda
> instead of Bronco upgrades.  You are pushing a 5000 lbs brick through the
> air.  It doesn't matter what you do to it, it's not going to get good
> mileage.  End of story.  You might get better mileage if you put it on a
> trailer and towed it around behind a diesel truck.
>
>  On Wed, May 7, 2008 at 9:42 PM, Erik Christensen <cat44 at telus.net> wrote:
>  gearing has absolutely nothing to do with mileage in a Bronco.  I've
> tested extensively, from 3.50 to 4.88, and the only thing that matters is
> your cruise speed. 50mph might get 18mpg. I never beat 17, but some claim
> to, although set ups vary. Mine was generally with 35" mudders, 5.5"
> total lift, and SEFI.various transmissions.
>
>  90-100mph, 10-12mpg.
>  70-80 mph 13-14mpg.
>  55-65mpg 15-16mpg average
>  50-55mph I got 17mpg the one trip (full tank- hwy) I tried it.
>
>  As far as I'm concerned, I'm going to run out of time before we run out
> of oil, so I drive fast :)
>
>  YMMV  :)
>
>  ----- Original Message -----
>  *From:* Jim Lemanek <hucklburrybronco at sbcglobal.net>
>  *To:* mail at broncofix.com
>  *Sent:* Wednesday, May 07, 2008 8:21 PM
>  *Subject:* [BFix] Thinking outload gas mileage and EB....
>
>  Reading all that we do, it looks like someone with a 5.0 and an OD tranny
> like a ZF gets maybe 18 mpg.  What gears is that with?
>
>  So if I were to keep the 3.50 gears, install a 5.0 and a ZF, any guess
> what I could get?
>
>  According to gear calcs, an OD at .75 and 34" tires, at 70 mph I get 18XX
> rpm at 70 with 3.5 gears and 21XX rpm with 4.11.
>
>  What do you think that would do to mpg? Stock 92 mustang 5.0.
>
>  Just wondering thoughts.  I was gonna ask best mpg setup as an excercise
> but quickly realized I would get a discussion on 4bt probably.  Thats a bit
> outside my motivation based on my current resources.
>
>  --Jim
>  ------------------------------
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>
> --
> Dan Davis
> 69 Bronco 351W SEFI
> My Pictures:
> http://community.webshots.com/user/utahbronco
>
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-- 
Dan Davis
69 Bronco 351W SEFI
My Pictures:
http://community.webshots.com/user/utahbronco
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