was Re: [BFix] Thinking outload gas mileage and EB.... now why ditch the lock up

[Joe Lougee]

Mike, the big advantage is that the tranny itself is much stronger 
without the lock-up shaft in there.  That feature is provided by a 
really small (like 3/4" diameter) where it extends and locks up.  It may 
be different on the 700R4, couldn't tell you.

As to why an AOD, why not?  Assuming I prefer to avoid giving any of my 
hard earned cash to AA, what O/D auto would you run?  I have a local 
builder who does great work and cuts me pretty awesome deals (the latest 
C-4 for the buggy was $400) and it still includes a 1 year guarantee.
Joe


Mike Bowlin wrote:
> What is the advantage of loosing the lock up feature on the AOD Joe? 
> The lock up on my 700r4 never bothers me or creates problems. And 
> while we are at why an AOD behind a 408 in the first place seems to me 
> there are way better transmissions to put behind the beef of a stroker.
> ----- Original Message ----- From: "Joe Lougee" <71broncoman at prodigy.net>
> Cc: <mail at broncofix.com>
> Sent: Friday, May 09, 2008 1:30 PM
> Subject: Re: [BFix] Thinking outload gas mileage and EB....
>
>
>> I have gotten in the 17+ range for extended distances, but not often.
>>
>> Rig was:
>> 1.  MAF SEFI Roller 351W with ZF and D20.
>> 2.  4.10 gears.
>> 3.  35" MT/Rs.
>> 4.  Full doors and bikini top.
>>
>> At around 55-60 MPH it would get 18.5-19.  The only time I can drive 
>> that was on the way to CA, following Clint's Dad's trailer.  They 
>> couldn't get enough tongue weight on it so had to drive slow to stop 
>> the "waggle".
>>
>> At 65-70 it would average around 17.5 on the highway.
>>
>> Around town I would get 15.5 on average, but would get .75-1MPG 
>> better with the hard top on.
>>
>> I'm currently building another with a MAF SEFI Roller 408 stroker, 
>> built AOD (_without_ the lock-up feature), 4.88 gears and 40" MT/Rs.  
>> It'll be interesting to see what it'll get for mileage!!
>> Joe
>>
>>
>> Erik Christensen 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 <mailto:hucklburrybronco at sbcglobal.net>
>>>     *To:* mail at broncofix.com <mailto: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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