Diesel Power for a Flat Fender? 4.3 or 3.8 even? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-29-2000, 03:58 PM
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Diesel Power for a Flat Fender? 4.3 or 3.8 even?

Any one ever tackled putting a small diesel engine in a flattie? I saw the Zuki crowd is putting VW engines in their rides.

I'm currently running a Chevy SB 350. While I love the power to pass up the silly BMW and Lexus SUV's, I feel that it's a bit TOO much engine for such a small Jeep. I was thinking of down sizing to a Chevy 4.3L (if I could find one!) or a Buick 3.8L. With my 71:1 crawl ratio there is no need for the monster engine, I can get good torque multiplication with the gears. (T-18, scout Dana 300, 4.27 in Dana 44's: 6.34X2.62X4.27=70.9) I just got done building a Dana 44 for the front, and now I'm worried that if I get stupid with the long pedal I'll be leaving U-joints by the side of the road. (I don't know how the previous owner didn't blow the Dana 27 with 5.38's to bits!)

A small diesel would give great low end torque and better gas mileage. My 350 drinks the 11 gal in about 100 miles.

Any thoughts or suggestions would be appreciated!!!

My name is Ted, and I'm a Jeep-a-holic. [img]/wwwthreads_images/icons/laugh.gif[/img]
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post #2 of (permalink) Old 09-29-2000, 10:09 PM
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

for money and ease of modification i would find a efi (perferably vortec) 4.3l. they have plenty of power and will bolt to the 350 bell housing.

brian wilson
80 cj5 "high 5"
stretched to 100" wb
efi351w/np435/d300/d44/d60/detroits/4.56/35tsl's/
post #3 of (permalink) Old 09-29-2000, 11:15 PM
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

I've was interested at one time in putting the Chevy 4.3L in my 78 CJ5 in order to get enough room to add a NV4500 and not cut the rear drive line to short. I could never find a measurement for the 4.3L to add it all up and see if it would work.

I agree with HighHood in that with the right gearing the need for "more power" comes into question.

Just a thought!
Kriss

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post #4 of (permalink) Old 09-29-2000, 11:42 PM
 
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

There was a 2000, 4.3 Vortec in the Las Vegas Recycler this last week for $600. I can give you the ph# if you need.

Jeff
89 Wrangler
I take my Jeep "On the Rocks",usually "With a Splash of Addrenalin"
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post #5 of (permalink) Old 09-30-2000, 01:32 AM
 
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

A Toyota diesel may be too small for you, but they are good engines. In 82 I bought a new Toyota pickup with the diesel
and that was the best engine I ever owned, over 150,000 miles and no money spent for repairs. It was slow getting going but you could run it wide open all day and it stayed cool and used on oil, or idle it for hours with the A/C running and it would stayed cool. It to small I would guess.

My Jeep is a work in progress, Happy Trails
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post #6 of (permalink) Old 09-30-2000, 02:45 AM
 
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

I am kind of interested in the Cummins 3.8 liter (is this the rght displacement for the 4 banger?) diesel, 120HP and a little over 300lbf of torque. I always wondered if adapters are out there to mate the common diesels (oxymoron) to common trannys?



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post #7 of (permalink) Old 09-30-2000, 08:31 AM
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

where can you find teh cummins 3.8? i have seen them being used in rigs in the magazines here recently but i'm not sure where you would get one. any ideas?

brian wilson
80 cj5 "high 5"
stretched to 100" wb
efi351w/np435/d300/d44/d60/detroits/4.56/35tsl's/
post #8 of (permalink) Old 09-30-2000, 02:10 PM
 
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

High5, most of my information for the Cummins 4 cylindar comes from magazines and books. So your question is, where to find them, I have no idea. I'd lke to know what trucks came with what diesels?.





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post #9 of (permalink) Old 09-30-2000, 09:14 PM
 
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

My vote is for the 4.3
but thats also what i have, i wanted a short engine with good torque and power and all i could find was V-6's
a inline 4-cylinder is as long as a V-8 (an inline 6 was out of the question)
a 4.3 or any other 90 degree GM V-6 will bolt up to a standard Chevy bellhousing.
i'm to lazy to go measure it but it's about 4" shorter than a 350.

but i must admit i seen a "Diesel Powered" scout with a YJ body on the trail, and it had a very high coolness factor.

<font color=red>3/4tonYJ</font color=red>

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post #10 of (permalink) Old 10-02-2000, 06:52 PM
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Re: Diesel Power for a Flat Fender? 4.3 or 3.8 even?

How about a 4.3Liter V6 Diesel? '82-85 Oldsmobile used these. Derivitive of the 5.7 but not prone to the 5.7's problems. Available in RWD or FWD, RWD will bolt to standard BOP trans or bellhousing, FWD uses 60 degree GM patern (I think, S10-Camaro 2.8L) 30+ mpg in Cutlass Supreme. Just some food for thought. About $500-$700 from a salvage yard.

Rondo

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