big66440 Posted January 6, 2016 Share Posted January 6, 2016 I took a nice long drive this last weekend and noticed things got a little scary after 75MPH on my Comanche, I know these trucks are not designed for high speeds so I was curious as to how fast you guys have driven your rigs? . :MJ 1: . Link to comment Share on other sites More sharing options...
rmoore1031 Posted January 6, 2016 Share Posted January 6, 2016 85+ Scared of 88mph. Mine never saw 60mph before I got it. Link to comment Share on other sites More sharing options...
Akula69 Posted January 6, 2016 Share Posted January 6, 2016 Never drove the 89 past 75 until the suspension was updated. I have not driven the 88 past 60, but once the conversions are finished we will see. Link to comment Share on other sites More sharing options...
johnj92131 Posted January 6, 2016 Share Posted January 6, 2016 I have done 85+ a few time, but not for long on the freeway. I am not afraid to drive the Comanche at 75 on the freeway. My tires are good/excellent, front end is also OK. Steering could be tighter, more than just a bit of free play in the steering Link to comment Share on other sites More sharing options...
Alexia Posted January 6, 2016 Share Posted January 6, 2016 80MPH is fine in mine. 85MPH is where the rear starts to lift up and float around. Link to comment Share on other sites More sharing options...
MancheKid86 Posted January 6, 2016 Share Posted January 6, 2016 dec 2012 on my way from chetwynd to dawsoncreek,in my 88 laredo metric ton , 4.0L/ax15 with 35's and 3.55 gears and correct speedometer gear, 4.5 lift in the front, short arm soa in the rear i have taken it up to 170 km/hr (105.6 mp/hr) doing this, i exceeded the speed rating on the bfg mud terrains, they were egg shaped afterwards taken my subaru to 230kmh/142 mph Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 6, 2016 Share Posted January 6, 2016 And I'm sure all these interstate speed readings were taken on calibrated speedometers. :rotfl2: Huh? What's that? Link to comment Share on other sites More sharing options...
Keyav8r Posted January 7, 2016 Share Posted January 7, 2016 75 (indicated) is good enough for me. I don't plan to road trip in my MJ but do drive it on the Interstates around town. If I want to go faster, I've got a hemi Ram that feels a lot more solid at speed (and quieter). Link to comment Share on other sites More sharing options...
shelbyluvv Posted January 7, 2016 Share Posted January 7, 2016 I can barely get my MJ up to 85 with 32s and 3:55s. 105.6 on 35s... I don't think so. Link to comment Share on other sites More sharing options...
gogmorgo Posted January 7, 2016 Share Posted January 7, 2016 It's not easy keeping a camera steady at that speed. That's indicating about 185km/h, or 115mph. Stock '91 4.0 4x4, with ~300,000 miles. I didn't have a GPS device at the time to confirm that speed, but based on what I know now about my soeedometer's calibration, I'd have to say it's more likely that it topped out around 170km/h, ~105mph. It's not easy getting up to those speeds with an automatic, because if you push the pedal down too far it kicks down into third and then you bang into the rev limiter and lose speed. I'd imagine it would take a while, but could still be done on 35's with the proper gearing. It would definitely be easier with a manual that stays in high gear with the pedal to the floor. I have however grown up a little since taking that picture. I'm no longer particularly proud of the speeds I reached on public roads or of how often I reached them. I'm also convinced it contributed significantly to the failure of the original 4.0, being driven that hard. Link to comment Share on other sites More sharing options...
64 Cheyenne Posted January 7, 2016 Share Posted January 7, 2016 :clapping: Link to comment Share on other sites More sharing options...
dscowell Posted January 7, 2016 Share Posted January 7, 2016 Hard to tell when your speedo only goes to 85. Past a friend going 105 one time, I was going down hill of course. My drivetrain had some crazy vibrations and shakes. Link to comment Share on other sites More sharing options...
fiatslug87 Posted January 7, 2016 Share Posted January 7, 2016 What ever happened with the member Worlds Fastest Comanche? He should chime in if he's still around. Link to comment Share on other sites More sharing options...
gogmorgo Posted January 7, 2016 Share Posted January 7, 2016 It's funny. Sure, my MJ has it's share of rattles and vibrations, and never really seemed happy about doing 70 mph, but faster than that and they seemed to go away. By 85 mph, it was almost like piloting a cloud... Although thinking about it now probably it was just me going into sensory overload due to the air noise. Judging by that pic, there were at least still some bumps. But my memory of it is still everything being a lot more stable than other not-intended-for-speed vehicles I'd done it in at the time. Link to comment Share on other sites More sharing options...
MancheKid86 Posted January 7, 2016 Share Posted January 7, 2016 I can barely get my MJ up to 85 with 32s and 3:55s. 105.6 on 35s... I don't think so. why would i have to b/s? gogmorgo is correct, it took a WHILE zoom in on that route, and you will see the highway goes STRAIGHT for a looooong time https://www.google.ca/maps/dir/Chetwynd,+BC/Dawson+Creek,+BC/@55.7566173,-120.9518236,10z/data=!4m14!4m13!1m5!1m1!1s0x538dfd8cd38036cf:0x78f86f733d913b4c!2m2!1d-121.6296734!2d55.6976802!1m5!1m1!1s0x539199367e0787b9:0x50135152a7b3130!2m2!1d-120.2376623!2d55.7596274!3e0 Link to comment Share on other sites More sharing options...
cruiser54 Posted January 7, 2016 Share Posted January 7, 2016 Til the needle pointed straight down. Speedo is accurate per GPS. Link to comment Share on other sites More sharing options...
Doc. Posted January 7, 2016 Share Posted January 7, 2016 I had my 87 up to 70 a few times when I first built it and everything was still tight. Bear in mind that's 35's, lockers, 4.56 gears, 3 link up front, 4 link coils in the rear, and no anti sway bars. It was built for rocks not the road. I went down the road pretty well though, but it wouldn't have been pretty if I tried to swerve to miss a dog or something. :eek: Link to comment Share on other sites More sharing options...
64 Cheyenne Posted January 7, 2016 Share Posted January 7, 2016 but it wouldn't have been pretty if I tried to swerve to miss a dog or something. :eek: When it comes to animals on the road, especially at high speed, dog, deer, whatever..... sorry, I "stay the course" rather than risk total loss of control and something catastrophic happening by trying to swerve then over correcting. Cows, horses, moose, bridge abutments...whole nuther story. Link to comment Share on other sites More sharing options...
hick92 Posted January 7, 2016 Share Posted January 7, 2016 I have redlined mine in last gear Link to comment Share on other sites More sharing options...
neohic Posted January 7, 2016 Share Posted January 7, 2016 73... probably to pass someone. Link to comment Share on other sites More sharing options...
gogmorgo Posted January 7, 2016 Share Posted January 7, 2016 zoom in on that route, and you will see the highway goes STRAIGHT for a looooong time https://www.google.ca/maps/dir/Chetwynd,+BC/Dawson+Creek,+BC/@55.7566173,-120.9518236,10z/data=!4m14!4m13!1m5!1m1!1s0x538dfd8cd38036cf:0x78f86f733d913b4c!2m2!1d-121.6296734!2d55.6976802!1m5!1m1!1s0x539199367e0787b9:0x50135152a7b3130!2m2!1d-120.2376623!2d55.7596274!3e0 Growing up in southern Toba/Sask, I don't need to use google to find long straight sections of road... There's a highway nearby with only a small kink in it, otherwise it would be straight as an arrow for 50 miles at least. Link to comment Share on other sites More sharing options...
Doc. Posted January 8, 2016 Share Posted January 8, 2016 but it wouldn't have been pretty if I tried to swerve to miss a dog or something. :eek: When it comes to animals on the road, especially at high speed, dog, deer, whatever..... sorry, I "stay the course" rather than risk total loss of control and something catastrophic happening by trying to swerve then over correcting. Cows, horses, moose, bridge abutments...whole nuther story. Same here, I was just saying. When something jumps out in front of me my foot goes for the brake, I'll swerve a little if I can, but I 'm not going in the ditch either. Link to comment Share on other sites More sharing options...
TheDude Posted January 8, 2016 Share Posted January 8, 2016 I had my 96 cherokee to the red line past 85 a few times and my Comanche I won't push past the 85 for fear of it messing up my Speedometer by hitting the trip reset. Link to comment Share on other sites More sharing options...
gogmorgo Posted January 8, 2016 Share Posted January 8, 2016 Nice dash bezel. :thumbsup: Link to comment Share on other sites More sharing options...
Minuit Posted January 8, 2016 Share Posted January 8, 2016 Back when the speedometer still read about 9% low I pegged the 85mph speedometer on an empty road (actual speed ~93ish). Nothing scary happened and if anything it smoothed out a bit. Of course, my front end has quite a few new parts sprinkled in, but if a stock MJ doesn't feel stable at ~75 something is quite wrong IMO. Also, :agree: Link to comment Share on other sites More sharing options...
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