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  #1  
Old 05-07-2012
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4bt cummins engine swap

So I have my old 97 ranger and I get out of the marines in a month and will be moveing back to Idaho when I do I am thinking about doing a 4bt swap right now I have the 3.0l in it and she is at about 2100000 miles so I know I am gunna need a new engine sometime she rubs great right now but the miles on her gives me a reason to do this I was wondering if anyone has done this with a 97 and if they could give me some tips thanks
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Old 05-11-2012
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The idea is good but the 4BT is slower than the 3.0slow.
It will not wind fast, will be noisy even with one of the new Cummins Noise Kits.
There is at least one thread on this site about the 4BT swap so good luck if it is something you really want to do.

IMHO… Since you will be doing some Fab work, think along the lines of a VW Diesel Engine in a Ranger, 50 MPG sounds almost too good to be true. These things are quiet, reasonably powerful and should cruise well on the road.
Not sure of the HP or the Torque but just something to think about.

Thks for being in the US Marines.
God Speed.
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Old 05-11-2012
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Quote:
Originally Posted by Scrambler82 View Post
The idea is good but the 4BT is slower than the 3.0slow.
is that your final answer?


if you have the correct gearing it will be faster, along with some minor engine work to get some more power out of it. in the end, it is all about gearing with these little guys. if you plan to run it on the road as a DD and go with ohh say 3.31 or 3.08 gears youll cruise nice and get probably 35 mpg.

3.73 gears with a f150 5 speed doesnt cut it on the highway, i just bumped down to 3.54/3.55 but havent drove it yet with that gear ratio
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Old 05-11-2012
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i want a dd but i also really want some nice off road abilitys why the 3.31/3.08 over the 4.10
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Old 05-11-2012
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like i said 3.73s are too tall for the highway (cruising around 2250rpm @70), off road it was good but i was 4x2 at the time i downsized to 3.54 but have yet to drive it soo i couldnt tell you how it drives on v. off road.

cruising on the hwy 1600-1900 rpm is the sweet spot to run these engines, best fuel ecenomy.

pick your trans, tire size, and then figure out what ratios you want to run. but i wouldnt recomend running a 4.10 behind a mr or zf-5 trans.
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Old 05-11-2012
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i was thinking a zf trans 33s for the tires but i also heard someone putting a 10 speed behind one of the motors too but with the zf and 33s what ratio do you think i should go
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Old 05-11-2012
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Is that 2.1 million miles a typo or is that 210k?
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Old 05-11-2012
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yeah lol its 210k lol i wish i could get it to 2.1 million
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Old 05-11-2012
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Quote:
Originally Posted by grogan55 View Post
i was thinking a zf trans 33s for the tires but i also heard someone putting a 10 speed behind one of the motors too but with the zf and 33s what ratio do you think i should go
10 sp is a hella lot of weight between those skinny azz rails. but i have seen it.

if your looking for road and offroad id say 3.73s or 3.54s depends what the % of each your gona be doing. im going to pm you a link, sign up read the stickys and search ranger there are about 5-6 on there done mine and another out in Idaho are 93-97 body style.

to help me, i made an excel file were i could plug in trans ratio, tire size, rear ratio, and RPM to figure out what was best for what i was doing.
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Old 05-11-2012
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I'm pretty sure that black ranger is a 5.9 not a 4bt. But I'm on my phone and could be wrong.
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Old 05-11-2012
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Old 05-11-2012
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yeah thats the one, its a beast. 200-250 hp out of one of these engines is plenty for the street thats somewhere like 500-600 ft./lbs. torque, thats pushing 700hp
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Old 05-12-2012
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Thats twice I have been proven wrong by you today. lol

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Old 12-02-2012
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Just for ***** & grins, BANKS engineering will be offering a high speed turbo V6 diesel soon
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Old 12-02-2012
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You can use a ZF, but that's going to require some tunnel modifications. I'd use an M5R2 and Tcase out of an F150, it will hold up to the 4bt with no problem in a very light Ford Ranger. You'll also need a numerically lower rear gear to keep it happy while crusing.
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