I need the weight/hp/torque of this damn motor. I asked at JU first and got no replies because it didn't say chrome in the title :laughing:.

We're thinking of slapping this in a buggy. Similar bell housing in any other autos besides stock KJ?

I'm looking around on google also but any help is appreciated.

All right 210 hp and 235 ft-lbs

Need a weight on the motor and bell housing info. Anyone?

Nope, I don't know anything about the KJ motor, but I have to ask why???!?!?!

Are you guys hoping it is a really light V6, compared to a 4.3?

Originally posted by LAME
Nope, I don't know anything about the KJ motor, but I have to ask why???!?!?!

Are you guys hoping it is a really light V6, compared to a 4.3?

Been reading about it and keep seeing all this engine hoopla in articles about how "this was done to make it lighter", "this feature makes it lightweight", "this feature reduces overall engine weight", etc, etc.

If this thing is so friggin lightweight then we'll just have to use pipe cleaners as motor mounts :D

Looks lightweight and very small. Could get one @ a decent price, decent hp, torque, can take high rpms. Will be a nice motor if it is light.

Anybody???? Any dealers/sales guys here who could call DC????

Originally posted by bigdude
All right 210 hp and 235 ft-lbs]

210 HP at 5,200 rpm
235 ft-lbs at 4,000 rpm

Little high on the curve, don't you think?? I'd think it'd be gutless down low.

Need a weight on the motor and bell housing info. Anyone? [/B]

Can't find the weight.....

Originally posted by Welby


210 HP at 5,200 rpm
235 ft-lbs at 4,000 rpm

Little high on the curve, don't you think?? I'd think it'd be gutless down low.



Can't find the weight.....

Torque doesn't look too bad down low. The buggy will be light, gears will be low.

http://www.jeep.com/liberty/power/img/torqueChart.gif

http://www.jeep.com/wrangler/power/img/torqueChart.gif

Compares to the 4.0. If the engine is light, it should be a good candidate. If we can mate something other than the Libby auto-trans it should be interesting

Good stuff in the bold


"The 3.7 liter PowerTech V-6 engine is, essentially, the 4.7 V-8 with two fewer cylinders. It is being used to replace two venerable engines - the less controversial being the 3.9, based on the aged but reliable 5.2 (318) V-8. Its first use is as the optional engine on the Jeep Liberty, but it was/will be followed quickly by use as the 2002 Dodge Ram's base engine. In both cases, the 3.7 V6 is mated to a five-speed manual transmission or an automatic.

Producing 210 horsepower at 5,200 rpm, with 235 lb-ft of torque at 4,000 rpm (that's 157 kW and 319 Nm), the 3.7 is more carlike in its power curve than past Jeep and Dodge Ram engines. However, revving for power is also the key to fuel efficiency not just for this engine, but for most new truck and SUV motors.



The 3.7 has a 90 degree V-6 design with cast iron block, compacted graphite bedplate and aluminum cylinder heads with single overhead cams on each bank. A centrally-mounted, gear-driven counter-rotating balance shaft, along with a split-pin crankshaft, reduces vibration.

Like the 4.7 on which it is based, the 3.7 features chain-driven overhead cams to provide long-term durability and reliability. A fabricated tubular camshaft with powder metal lobes helps reduce engine weight.

Unlike many new engines, the 3.7 has only two valves per cylinder - better for low-end torque, but not as good at higher rpms. Since the 3.7 will be in relatively heavy vehicles, that is probably a good design choice. A variable valve system would be even better.

The composite intake manifold has individually tuned runners for improved performance. Runners are shorter than on the 4.7-liter engine, to produce torque and power peaks at higher speeds. The three-piece shell molded plastic manifold provides individual tuned runners for each cylinder. Molded plastic construction provides more air flow than a cast aluminum manifold with the same dimensions because of its smooth inner walls. Lightweight aluminum pistons and precision forged, powder metal connecting rods reduce reciprocating weight, contributing to the engine's high rpm capability.

High air flow was achieved through hundreds of hours of computer simulation used to optimize every aspect of the air flow equation, from the air cleaner inlet to the tail pipe. Splayed valves and large uniform intake ports, made possible by using overhead camshafts, ensure that abundant air flow enters each cylinder in the same way.

Fast-burn combustion extracts more work from a given amount of fuel, increasing efficiency. Spark plug location near the center of the combustion chamber allows rapid combustion without potentially damaging knock. Rapid, complete combustion maximizes the amount of energy in a given amount of fuel that is transferred to the piston as useful work.

Molded, high temperature gaskets provide lifetime sealing of all structural joints. The drive overhead camshafts uses three chains with an intermediate shaft to provide the necessary speed reduction in a compact package and to ensure reliability. Direct mounting of the alternator, power steering pump and air conditioning compressor on the front cover of the engine provides accurate alignment to minimize belt wear and noise. An automatic tensioner for the single serpentine poly-vee belt makes adjustment unnecessary for the life of the belt.

The exhaust system of the 3.7-liter LEV includes two mini-catalytic converters, one for each cylinder bank in addition to a main under body converter. "


I would take that as a good sign for trannies if they are tossing it in the ram

We're assuming it'll use chrysler pattern. Should be able to bolt up a 999 which is what we'd like to use.

Just need to find the weight. Nobody on the JU Libby BB seems to know either :laughing:

The curb weight for a 2-wheel drive KJ with the V6 is about 160 pounds more than the 2.4 liter. If you happen to know the weight if it :) that +160 would be pretty close

http://www.jeep.com/liberty/full_specs/full_specs.pdf

Chad

Originally posted by chadl
The curb weight for a 2-wheel drive KJ with the V6 is about 160 pounds more than the 2.4 liter. If you happen to know the weight if it :) that +160 would be pretty close

http://www.jeep.com/liberty/full_specs/full_specs.pdf

Chad

Different trannies, different exhaust, different electronics, so weight difference there also.

Bare engine weight? Somebody's got to have a connection at a dealer or in corporate somewhere who knows.

Great info in this thread. Bigdude, did you end up using this motor?

When i go to the dealer monday to bring a FSM back ill dig around and see what i can find....

Great info in this thread. Bigdude, did you end up using this motor?
tt

He ended up using a Vortec 5.3. link (http://www.pirate4x4.com/forum/showthread.php?t=309459)

edit: Although re-reading this it talks about putting it in a buggy.. maybe it was for something different.