Dec 5, 2008 the specs are for the TD, but should be fairly close... the naturally aspirated unit has 94 hp, the turbo 101... SAE Net Horsepower............101 @ 3100 RPM SAE Net Torque (lb/ft)........175 @ 2200 RPM with 3.54's and 235's the probable "sweet spot" is 2200rpm or 53.40 mph... peak horsepower is at 75mph. This looks quite promising... from: http://wagoneers.com/FSJ/tech/gears.html MPH =( A x B x pi x 60) / ( C x 12 x 5280 ) 3.54 gears 235's Tires: 28.88 tach mph 600 14.56 700 16.99 800 19.42 900 21.84 1000 24.27 1050 25.48 1100 26.70 1150 27.91 1200 29.12 1250 30.34 1300 31.55 1350 32.77 1400 33.98 1450 35.19 1500 36.41 1550 37.62 1600 38.83 1650 40.05 1700 41.26 1750 42.47 1800 43.69 1850 44.90 1900 46.11 1950 47.33 2000 48.54 2050 49.75 2100 50.97 2150 52.18 2200 53.40 2250 54.61 2300 55.82 2350 57.04 2400 58.25 2450 59.46 2500 60.68 2550 61.89 2600 63.10 2650 64.32 2700 65.53 2750 66.74 2800 67.96 2850 69.17 2900 70.38 2950 71.60 3000 72.81 3050 74.03 3100 75.24 3150 76.45 3200 77.67 3250 78.88 3300 80.09 3350 81.31 3400 82.52 3450 83.73 3500 84.95 3550 86.16 3600 87.37 3650 88.59 3700 89.80 3750 91.01 3800 92.23 john ----- ------------------------------------------------------------------------ Snohomish, Washington -o|||||o- where Jeeps don't rust, they mold http://johnmeister.com/fotomeister - Trust Jesus: http://freegift.com SAVE power, avoid viruses, use LINUX: http://johnmeister.com/tmcp.pdf SAVE fuel, use synthetics: http://AMSOIL.com/redirect.cgi?zo=283461 ------------------------------------------------------------------------ On Fri, 5 Dec 2008, Jim Blair wrote: # The Nissan diesel has a different power band than most. They rev up as high as # 3800 RPM # http://forums.off-road.com/nissan-all/38266-sd33t-specs.html # http://www.motorpowerinc.com/specs/specs.html # # The 727 is supposed to be big block Mopar and not Jeep. If you can find one, # Nissan Maxima/810 diesels ('80 to '84 wagons only AFAIK) had an AW4 (rather # than the usual Jatco) with 4 and 6 cyl diesel. It had a separate controller on # the fender and IIRC the converter was a lower stall speed than the gas ones. # My '84 J10 had 2.72 gears (common for 6 cyl autos post '81) but it now has # 4.10s (and D60 rear!) # # Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10 # > found the hp specs: # > SD33 - 3246cc - Pushrod 6 cylinder, diesel - 94hp # > SD33T - 3246cc - Pushrod 6 cylinder, diesel, turbo - 108hp