was Re: [BFix] Thinking outload gas mileage andEB....nowwhyditchthe lock up

[Brian Cooke]

Not sure why a 351W turning at 2200rpm is bad gearing.  Not like it's 
lacking torque to adequately move me at 70mph except when climbing a long 5% 
+ grade in OD. Not sure why I'd need to spin the engine at another couple 
hundred rpm for extended freeway trips is worth it for wear or for mileage 
IMO.  Guess that's how I got almost 185,000 miles on this engine I built 20 
years ago... I regeared to 4.56's last fall to help offset the taller tires.

If this was a dedicated trail rig or used 90% on trail that's a different 
story. Quite a few EB's are driven more miles off road than on-mine is. Even 
if you tow your rig to Moab, you're usually putting more road miles on it 
than trail miles in a typical day. 10 miles to the trail head, 10 miles 
back. Trail is 5-15 miles long...whatever...just an example.

Most of you know I also run a doubler off road, so "go slow" gearing isn't 
an issue at all.

You're right, heat is a drawback of more HP. For sand, heavy wet snow and 
mud, you can't go wrong with more HP tho. Crawling over rocks is totally 
different. Just like tires, there's a different drivetrain combination that 
would be best used for almost every terrain.


BTW, ask Jack how much fun having that 408 is too!  :)

Brian

Brian @ Columbia River Broncos...20 forward gears & 4 reverse to choose 
from.
----- Original Message ----- 
From: "Mike Bowlin" <M.Bowlin at mchsi.com>
To: "Quinn Dusenberry" <q.dusenberry at comcast.net>; <mail at broncofix.com>
Sent: Saturday, May 10, 2008 8:15 AM
Subject: Re: was Re: [BFix] Thinking outload gas mileage 
andEB....nowwhyditchthe lock up


> Thats what I'm sayin! I had 5.13s with my 35" tires and the OD of the 700, 
> that was a great all around combo.
> ----- Original Message ----- 
> From: "Quinn Dusenberry" <q.dusenberry at comcast.net>
> To: <mail at broncofix.com>
> Sent: Saturday, May 10, 2008 8:13 AM
> Subject: RE: was Re: [BFix] Thinking outload gas mileage and 
> EB....nowwhyditchthe lock up
>
>
>> It seems to me you should be concentrating on getting that thing properly
>> geared before worrying about more power. 4.10's with 37" with an OD 
>> tranny
>> is not a good combo IMO. I would be running 4.88's at a minimum. You'll 
>> get
>> more bang for the buck with lower gears than you will with some HP engine
>> that will cause other problems like cooling and such.
>>
>> -----Original Message-----
>> From: bfix-bounces at broncofix.com [mailto:bfix-bounces at broncofix.com] On
>> Behalf Of Brian Cooke
>> Sent: Saturday, May 10, 2008 7:28 AM
>> To: Mike Bowlin
>> Cc: mail at broncofix.com
>> Subject: Re: was Re: [BFix] Thinking outload gas mileage and
>> EB....nowwhyditch the lock up
>>
>> Makes me wonder why you can't use OD much with 38" tires and 5.13 gears.
>>
>> My ZF isn't far behind the 700R4 for OD gearing, I'm running tires
>> (Swampers) that are a true 37" dia and I was driving everywhere in OD
>> (except long hills) with 4.10 gears. Now with 4.56 gears I'm running up 
>> the
>> hills farther before shifting down.  This is with a 20 yr old 351W engine 
>> I
>> built back in '88.   I'm planning on my new stroker getting me up those 
>> same
>>
>> hills in OD. Course 450+ ft lbs of usable low end torque should help  :)
>>
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