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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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02-26-2011, 09:53 PM | #3421 |
Zilvia Junkie
Join Date: Feb 2009
Location: Walton, Kentucky
Age: 30
Posts: 545
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The wall thickness is really dependent upon what your sanctioning body dictates, but most people go by SCCA or similar style regulations.
For an s-chassis this equivilates (often) to DOM tubing of: 1.5 x 0.095 1.5 x 0.120 1.75 x 0.65 1.75 x 0.65 is a tad lighter than 1.5 x 0.120 and will be stronger due to its greater moment of inertia and increased weld area. Not sure what most people do for the actual floor plates, but SCCA/NASA regulations require at least 0.08" thickness iirc and there is a minimum area for each plate used and often a max. I, personally, would tie it into at least two planes where possible.
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03-03-2011, 11:05 AM | #3422 |
Leaky Injector
Join Date: Dec 2007
Location: Brampton,Ontario
Age: 33
Posts: 100
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after hitting the wall last year. I wanted to make the car easier to fix when I do crash and make the rear end stronger
everything cut out tig welding cages takes so much more time the tubing under the tail light sit half an inch past the lights. hopefully saving the rear end under small love taps mocking up the cell its looks pretty good |
03-04-2011, 05:29 PM | #3424 |
Zilvia Junkie
Join Date: Feb 2009
Location: Walton, Kentucky
Age: 30
Posts: 545
Trader Rating: (6)
Feedback Score: 6 reviews
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Please let me know what you think of that. For one of the cheaper welders, it seems to be getting solid reviews.
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03-04-2011, 05:34 PM | #3425 |
Zilvia Addict
Join Date: Oct 2006
Location: barrie, ontario, canada
Age: 35
Posts: 997
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That's why I picked it up. I had read good reviews on Everlast. Along with some bad.
But then again. I've read bad reviews on Miller and Lincolns too... I also didn't want to pay double the price for a Dynasty 200dx when the 250EX will "supposedly" perform just as well.. |
03-04-2011, 06:54 PM | #3427 |
Zilvia Junkie
Join Date: Feb 2009
Location: Walton, Kentucky
Age: 30
Posts: 545
Trader Rating: (6)
Feedback Score: 6 reviews
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Yeah, I'm about halfway to a Lincoln Precision Tig 225. I know it would be a better machine, but it is more than I will probably need. If the everlast is a capable machine for the home shop, it's definitely within budget and allows me to use the excess funds on the car and for materials.
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03-04-2011, 11:47 PM | #3428 |
Zilvia Member
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haven't been by here to post for a while. sort of fab related, just made a run on a bunch of these:
for a bunch of these I picked up: 1st part i've ever made on a cnc, had to create the program and write the code manually. it wasn't too bad since it was a fairly simple part. made some modifications to the part before cutting them, like making these slip fit instead of butt joint, and making the o-ring lip on the outside thicker (had some of the ones from wiggins bend before). |
03-05-2011, 01:27 PM | #3431 | |
Zilvia Addict
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Quote:
Getting a hold of someone to talk to besides the sales lady was pretty hard but we did manage to.. After talking to them multiple times we couldn't get a solid solution.. We have since sent the unit back and now waiting for a refund.. Of course, this was probably caused during shipping, but the annoying CS situation convinced us to go elsewhere and buy a Thermal Arc 185... |
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03-05-2011, 05:42 PM | #3432 | |
Zilvia Addict
Join Date: Oct 2006
Location: barrie, ontario, canada
Age: 35
Posts: 997
Trader Rating: (0)
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Quote:
Most of the issues caused within Everlast units are due to shipping damage. Most of the time it's caused AFTER being shipped over seas. Because of the price of Everlast units. I do not expect them to be the Roll Royce of welders. And no one should. Although it does raise questions about problematic "Rolls Royce" type welders. |
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03-06-2011, 11:25 PM | #3433 |
Premium Member
Join Date: Jan 2005
Location: Cali
Age: 53
Posts: 1,371
Trader Rating: (29)
Feedback Score: 29 reviews
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Beams down pipe
Hey boys and girls...Just a little something I whipped up today to help my buddy out with his Beams swap...
My buddy wanted to use all pie cuts for the bends, so here we are. Twenty-six sections in all. I could have TIGed the whole thing, but I am not very fast at at and it would have taken me forever. |
03-07-2011, 08:19 AM | #3434 |
Zilvia Member
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starting on my cage for this season, got the front section done and up.
tacked together, then dropped through the floors to do the tops. before i raised it back up. and welded it to the baseplates.
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03-07-2011, 12:07 PM | #3435 |
Leaky Injector
Join Date: Jul 2008
Location: San Diego
Age: 36
Posts: 74
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hey when you tack weld the panels together like that, do you use ny type of sealer or glue afterwards like oem manufacturers use if so whats it called and where can i get some??
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VG30ET Modded 2nd Gen Maxima |
03-07-2011, 05:20 PM | #3436 | |
Premium Member
Join Date: Jan 2005
Location: Cali
Age: 53
Posts: 1,371
Trader Rating: (29)
Feedback Score: 29 reviews
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Quote:
I don't use any seam sealer after stitch welding the chassis. If you wanted it you can find it at your local body shop supply. |
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03-07-2011, 11:57 PM | #3438 |
Zilvia Member
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the rear x on the outside is under the tails, is the first part of my solid bash bumper/support, it is one solid bar with two bends from one side to the other. it is directly above the rails, i know going directly to them would have been better, but i figure unibody car, baseplates, and if i position them over the rails, same concept, 75% efficiency, its just there incase i go backwards into a wall, its extra bracing in my mind. but alot of people seem to be asking me that stuff, im not sure to be honest what the motivation was, but this is my first cage.
heres a pic of my car last season. the rails are boxed, and have a removable second bumper support that i need to build but i need my aero.
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03-09-2011, 07:09 AM | #3439 |
Zilvia FREAK!
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FUUUUUUUuuuuuuuuuuuuuuuu
i hate seeing pics like this
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cONtRol FReAkS |
03-09-2011, 10:38 AM | #3440 |
Zilvia Member
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It'll buff.
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'95 240 | @SleepySteve72 |
03-15-2011, 03:41 AM | #3448 |
Zilvia Addict
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Need some help,
Just picked up a new s13 from a member on here but everyone that sees it tell me the cage is a "death cage". not knowing much about cages what could one do to help make the cage better? the bottom mounting plates for sure need some help but im not sure. arnt cages supposed to be up a little more going thru the dash and not before. also some of the welds look horrible, would grinding them all down and re welding them effect the metals in anyway? |
03-15-2011, 09:35 AM | #3450 | |
Zilvia Member
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Quote:
(and this is not in any particular order) Lack of rear down bars going directly to their respective rear strut tower mounting points (may not pass tech everywhere) Rear X brace off the main hoop anchoring at the cross bar between the rear strut towers instead of at the rear strut towers themselves. Door's X bars are set in far enough to not interfere with interior panels, but that may hinder side impact protection. Front down tubes that normally follow the length of the A pillar to within a few inches of the firewall go straight down about 6-12'' too soon making me wonder what kind of foot protection you have available to you. Each half of the harness bar is in a different plane. Which may be an issue with some groups, but not terribly likely given that the main hoops diagonal is still of just one single piece. Lack of roll cage padding where driver can come into contact with cage. (Though thats about the simplest fix there is) Those are probably the biggest issues apart from what you already mentioned about the questionable quality of the welds and the mounting plates. Grinding down the welds and having them re-done where they're looking especially bad may be a good idea. Its probably not going to hurt anything if the welds never penetrated to begin with. -- Do you know the specs on the tubing used?
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'95 240 | @SleepySteve72 |
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