Thread: Help!!! 4cly vs 6cly in first gen trooper.

  1. #1
    Join Date
    Jul 2012
    Location
    Oregon
    Posts
    1

    Default Help!!! 4cly vs 6cly in first gen trooper.

    Hey guys I am a newbie to troopers, and am looking into getting a first gen, and have a few questions. I was wondering if 1990 was a good year for them or if it should be avoided for some reason. My main question is 4cly vs 6cly in manual troopers. was one more reliable than the other? did the 4cly have enough power for what the trooper was built for? how many mpgs does the 4cly and the 6cly get? is there a huge difference which one would be better for a DD/weekend warrior/expedition rig?
    I found a nice 4cly one but it has 224k and another 4cly one but its a little more beat up and need a slave cylinder redone on the brakes? It only has 158k but is an 88 not a 90. I also found a nice looking 90 in black that only has 124k!!! but its a 6cly that's why i ask mostly wondering about the dif in power and gas mileage.

    Thanks guys.

    JP1985

  2. #2
    Join Date
    Jul 2011
    Location
    Minnesota, USA
    Posts
    605
    They actually have about the same power. One advantage (to some) of the 6 cylinder is that you can easily swap in a 3.4L Camaro engine as many have done. And because it is a GM 2.8L, parts and mods are common. The Isuzu 2.6L 4 banger is a good, stout motor unless overheated, in which case the head can crack. Good replacement heads are available. Neither motor is a powerhouse, but either one can serve you well. If you find a first gen in good shape (little rust) I would be happy with either motor.

    The "slave cylinder" is likely for the clutch, not the brakes.

    BTW there is a world of info available at the planetisuzoo.com forums...
    Steve Carlson
    1995 Isuzu Trooper LS

  3. #3
    Join Date
    Oct 2009
    Location
    Portland, OR
    Posts
    215
    Can't go wrong with the V6. I have the slightly larger 3.1L and it's a champ. Incredibly reliable and simple. Fairly fuel efficient too. Just got 19 mpg fully loaded with gear (over 5,000lbs) doing some remote camping. I've had a couple troopers with the 4cyl. They were problems. Head gaskets. Idle issues. Reliability.
    2013 Toyota Tacoma TRD - APEX Winch Bumper, Sliders, Rack, Skids, PIAA Fogs, Warn Xeon 10s: Wireless, Synthetic, Viking Thimble, RevengeFab Rear Bumper, Odyssey, ARB Compressor, OME HD Suspension, Uniball A-Arms, TRD Wheels, 235/85 Destination MT, Spindle Gusset, Mesh Grille, 30" LED Light Bar, AirFlow Snorkel, Wet Okole Seat Covers, WeatherTech FloorLiners, 3M ClearBra Wrap, CV Driveline, Cobra CB w/ Wilson Flex

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