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RE: Removing fender troughs |
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MoparLove
AMC Apprentice Joined: Feb/20/2012 Location: Englewood, CO Status: Offline Points: 37 |
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Posted: Mar/25/2017 at 10:22pm |
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Question about the idea of removing the troughs in the front of a Javelin to gain more tire clearance after lowering the front suspension on a road race car. Are the troughs structural? In other words, if I remove them, do I have to do something else to replace the structural rigidity? What is the purpose of the trough in the first place?
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hassyfoto
AMC Addicted Joined: Nov/16/2009 Location: Maryland Status: Offline Points: 3378 |
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Yes they are part of the structural rigidity of the vehicle.
Like many racers, you can replace with tubing, but you will need to reinforce the firewall and radiator support areas. To tie into the radiator support or the end of the frame rails is relatively easy. To tie into the firewall/cowl area will take a little more work and planning to give you the correct structural support. If you have a cage, then you can tie into the cage. Careful planning and placement of the tubes is important so the structural integrity of the vehicle is maintained.
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Murphy's Law:
Any given mechanical job you decide to solve alone will imminently require a third hand, at its most critical moment |
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MoparLove
AMC Apprentice Joined: Feb/20/2012 Location: Englewood, CO Status: Offline Points: 37 |
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Very helpful, thank you!
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Ohio AMX
AMC Addicted Charter Member Joined: Jun/29/2007 Location: NE Ohio Status: Offline Points: 4935 |
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I feel they are more for front end crash protection. Hornets don't have them.
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1940 Hupmobile Skylark
1968 Javelin future Pro Street 1969 AMX 290/auto (first car) 1997 Dodge SS/T 5.9L AMO# 983 |
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amcglass
AMC Addicted Joined: Dec/11/2011 Location: NW Ohio Status: Offline Points: 2588 |
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i have to side with the fact that they are for accident support not structure of being rigid body
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Javmanpres
BBG Mark Donohue 401 74 Jav/AMX 71 Matador 2dr sedan delivery wagon 1902 Rambler Runabout 70 T/A Javelin |
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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I cut mine half way long the top edge. Expecting seperation with the front lifted and engine and tranny intact. Frame and body are strong enough. Though I plan on adding tube as expressed the first reply.
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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Sonic Silver
Supporter of TheAMCForum Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7949 |
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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I can post a picture of my cut, as my car is lifted at the balanced center of the frame front wheels up engine and trannie installed. If I take my th400 out of the trunk, my car will nose dive. There is hardly any separation if any from the width of my cut long the front of the trough. All another guy posted pix some time ago on his javelin. He cut his troughs and did not use any supports. Though my troughs are semi trough, leaving the upper top in place with about 1-1/2" hang at the start of the trough. This way there is some rigidity and partial trough. Though I will have a reinforcing tube done up for performance use on a road track. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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Mopar_guy
Supporter of TheAMCForum Joined: Jun/07/2009 Location: Ohio Status: Online Points: 4826 |
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I would agree Scott. I've been researching MII front ends for my car and found out that early Mustangs don't have such a support. It makes the AMC's a stronger car for sure but I don't think they're necessary after seeing how they're built. |
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"Hemilina" My 1973, 5.7 Hemi swapped Javelin |
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Javelin_GT
AMC Addicted Joined: Feb/15/2008 Location: Colorado Status: Offline Points: 1066 |
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I cut mine off. There is a video of the car around here somewhere in the road racing section.
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