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Thread: Anybody tow a twin engine boat w/ an H2?

  1. #1
    Junior Member
    Join Date
    Apr 2012
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    0
    Looking to tow my 28' Daytona w/ twin 496's on a 400 mile each way trip. I have a Diesel Ford but I just like the comfort of the H2 better. Does anybody have any experience towing this type of distance with this vehicle? Hummer claims only 6700lbs gross tow weight, but I have just installed a Magnusson Supercharger and I special ordered the Lux series w/ the Adventure pkg. rear air bags. I have seen an H2 with a 28' Daytona behind it, just not sure of overheating or overloading the bags! Any input from Hummer owners would be appreciated. Thanks in advance.

  2. #2
    sigepmock
    Not sure if this will help but I used to tow my WW toy hauler, 12,000 lbs loaded, with my Chevy 2500HD. It had the 6.0L motor and a Whipple supercharger, air bags in the rear 35 inch tires and 4.56's. It towed it very well, only time it wanted to overheat was when I fought a big head wind and really had to push for long periods of time. Other than that it towed very well. Just watch for when the tranny starts to slip the torque converter, all that power and the tranny slipping can heat the tranny really fast. I would just get out of it a little until the torque converter would lock up again and then it was fine. I had the 4L85E not sure if the H2 has the same or the 4L60?
    Hope this helps,
    Chris

  3. #3
    Cole Trickle
    We tow our 28' Sleek fully loaded with no problem.(Prob. 7,000+ lbs)
    Hills will come and go in 2ng gear around 50mph
    I have no idea what that daytona with twins tips the scale at but I think you will be fine with the Magnacharger.
    Oh yeah!
    Keep a gas station in sight if you have to stay in the boost for long periods of time. :hammerhea :hammerhea
    Brandin

  4. #4
    jackpunx
    I got a buddy that towed his 29' Fountain with his H2..
    He ended up buying a ford truck and keeping the h2 for his wife

  5. #5
    djunkie
    I got a buddy that towed his 29' Fountain with his H2..
    He ended up buying a ford truck and keeping the h2 for his wife
    Baller :smile:

  6. #6
    djunkie
    I'm thought the H2 was basically the same chassis and drive train as a Tahoe. But I could be wrong.

  7. #7
    jackpunx
    Baller :smile:
    Yea.. kinda.. but.. the H2 couldnt do the job.. wheel base was to short..

  8. #8
    Junior Member
    Join Date
    Apr 2012
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    0
    We tow our 28' Sleek fully loaded with no problem.(Prob. 7,000+ lbs)
    Hills will come and go in 2ng gear around 50mph
    I have no idea what that daytona with twins tips the scale at but I think you will be fine with the Magnacharger.
    Oh yeah!
    Keep a gas station in sight if you have to stay in the boost for long periods of time. :hammerhea :hammerhea
    Brandin
    Thanks, the daytona is supposed to weigh 6500lbs plus 1500lbs for the triple axle extreme trailer = 8000lbs apx.?

  9. #9
    Junior Member
    Join Date
    Apr 2012
    Posts
    0
    Not sure if this will help but I used to tow my WW toy hauler, 12,000 lbs loaded, with my Chevy 2500HD. It had the 6.0L motor and a Whipple supercharger, air bags in the rear 35 inch tires and 4.56's. It towed it very well, only time it wanted to overheat was when I fought a big head wind and really had to push for long periods of time. Other than that it towed very well. Just watch for when the tranny starts to slip the torque converter, all that power and the tranny slipping can heat the tranny really fast. I would just get out of it a little until the torque converter would lock up again and then it was fine. I had the 4L85E not sure if the H2 has the same or the 4L60?
    Hope this helps,
    Chris
    Thx. for the info. You could actually hear the tranny slip? Do you tow with the tow haul button on? I used the button on a trip with 24' Lavey and heard nothing?

  10. #10
    sigepmock
    With or with out the tow haul it still had point when the rpms, throttle postion, and speed would give the computer the signal to unlock the TC you could see about a 500 to 800 rpm increase, as soon as it did the tranny temp would start climbing :jawdrop: . I worked with the guys at Whipple on a custom tune, the first tune that unlocked the TC was great for drag racing, gave you a little better power but the first time I towed with it, the tranny temp went through the roof. After a retune we got it under control...but not perfect. The GM ECM basically uses the RPM vs. speed vs. throttle position to calculate what gear it should be in and if the TC should lock up. Only caused a problem towing real heavy, on a steep grade, fighting the wind, etc..... Like I said we got it under control but I just had to keep an eye on it.
    Sounds like you should be fine. Let Brandin know how it turns out....I think his dad is wanting to put the Radix on his H2 Right Brandin????
    Chris

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