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2G Tow strap mounting

Posted by ileagleracing, Nov 1, 2018

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  1. ec17pse

    ec17pse Freelancer

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    Its not an issue as such but when they pull you sideways this might cut into the bumper cover/fog cover, so that and make sure its strength on sideways motion also on as it might twist when they pull sideways.

    Is the bumper mounts removeable? It might be something to consider for those not needing them and can unbolt it and inplace bolt in a bumper cover bracket to hold it up and not droop under the light. Just an option as an add on
     

    Road Race Build 11K  12  60

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  2. turbosax2

    turbosax2 Moderator

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    The fog light hole clearance is pretty decent so sideways motion should be OK, as long as it's not very extreme. Although not shown on the model, I'll probably weld in some little stops on the bottom to prevent the tow strap's bracket from being able to rotate on the bolt.

    I planned to weld the bumper mounts on since I have no plans to remove the crash bumper, but not a bad idea to make them removable.
     

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  3. ec17pse

    ec17pse Freelancer

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    Its a nice design. Box is what i went with and it will take alot just dont do what i nearly did and go m14 bokts LOL, no wiggle room, i did go m12 in the end for more strength and tow straps ask for a minimum of m12 so it does offer a smidge less side movement but its stronger for the mounting even on the chassis rails.

    Good work here
     

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  4. turbosax2

    turbosax2 Moderator

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    Thanks! All the bolts shown (on the tow hook and the chassis mount) are 1/2" flanged. It's definitely a tight fit, but they fit.
     

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    1999 Mitsubishi Eclipse GSX
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  5. ec17pse

    ec17pse Freelancer

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    If you plan to sell them then i would make them mounts removeable so you or they can make a bracket that bolts in place for the bumper cover. Its just thinking about making it easier for the customer really.

    1/2" is tighter but you see what i ment by wiggle room being limited LOL, weird thing is my white chassis was different then my red chassis! Not sure why but it was about 4mm off, i think thats ehy they use M10 as it gives slot more movement for them being sloppy with fitment holez
     

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    1997 Mitsubishi Eclipse GST
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  6. turbosax2

    turbosax2 Moderator

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    I always think about selling stuff like this but I've rarely gone through with it. I no longer have access to a machine shop since I changed jobs, so I'm not really setup to mass produce these. I'll be doing the best I can with my angle grinder, Dremel, and drill :) Plus, I'm not sure the demand is even there.

    Although, I did pick up an HTP 221 TIG welder so that will be instrumental to this project!
     

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    1999 Mitsubishi Eclipse GSX
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  7. turbosax2

    turbosax2 Moderator

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    Our testing of the prototype mount with the trailer winch went well enough, so we started fabrication on the real ones. The prototype is almost the same as the real ones, except it doesn't have the gusset since I wanted to test without it for worst-case scenario. With the brakes fully on, it actually started moving the truck/trailer back towards the car.

     

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    1999 Mitsubishi Eclipse GSX
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  8. ec17pse

    ec17pse Freelancer

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    Sorry for not replying sooner. I thought i did till i checked back.

    I read your initial post as your going to offer them so thats why i mentioned it.
    Your test one looks good and strong. If your not going to gusset the inner angle of the two tubes maybe weld a cover over the outside of the welds to stop them from ripping apart as a precaution more then anything. But it looks like it works really well. Now you just got to keep an eye on the chassis mounting holes so they dont start to deform and lift up with the force being offset.

    Nice work team Loose
     

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  9. turbosax2

    turbosax2 Moderator

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    The final mounts are complete and the test fit was successful. We're just waiting on some decent weather to paint them, the rest of the tow straps, and a friend to machine spacers to put in the front frame holes to minimize distortion. I'll post more pictures once they're all finished

    20200325_162043 (Medium).jpg Untitled.png
     

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  10. EvoXcrZy08

    EvoXcrZy08 Probationary Member

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    Do you have an idea on what your asking price will be?
     

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  11. turbosax2

    turbosax2 Moderator

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    Our friend made one frame rail spacer but it was too difficult for him to make all four, so we outsourced them with a few tweaks from the original design. But other than that, they're done and installed!

    I also welded the fog light cover screw to a thumb screw like I use on the rest of my bumper so it can be removed without tools. This will make it a little easier to get the tow hook through the hole when installing the bumper or allow me to tuck the tow straps in if I don't want them sticking out. They're too stiff to be tucked back into the hole otherwise.

    20200328_171051.jpg 20200328_181347.jpg 20200328_181410.jpg 20200328_202332.jpg 20200328_194540.jpg 20200328_194652.jpg 20200328_195300.jpg 20200328_202410.jpg
     

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  12. turbosax2

    turbosax2 Moderator

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    And the spacers are in. This should help keep the metal that the mounts bolt to from stressing and pulling away from the bottom of the frame rail, which we see some evidence of in the video testing. It will also prevent the mounts from moving forward when pulled on since the spacers will dig into the hole in the frame rail.

    20200403_120353.jpg 20200403_195352.jpg
     

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    1999 Mitsubishi Eclipse GSX
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  13. Black95TSIawd

    Black95TSIawd Proven Member

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    Amazing job.
     

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