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Unread 02-10-2014, 05:20 PM   #1081
MurdaJs
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Quote:
Originally Posted by 3278 View Post
TJdualsport, if you had it all do to over, starting from scratch, where would you start to make a TJ high-speed off-road capable? I'm building a TJ, but my problem in the past - with YJs and XJs - has been that the kind of deep "potholes" you find in the mud-covered forest trails up here in Michigan make it completely impossible to do more than crawl around. [I recently blew the driver seat through the floor of my XJ trying to do a high-speed test run down a forest road here.] I get a lot of conflicting advice - Fox shocks, long arms, 4-link rear - but I'd like to know, from someone who's actually gone through it, what matters the most, starting out?

Shocks, shocks, and shocks. Air bumpstops are nice too.

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Unread 02-10-2014, 07:57 PM   #1082
WJDesertRacer
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Quote:
Originally Posted by MurdaJs
Shocks, shocks, and shocks. Air bumpstops are nice too.
X2 wheelbase and lots of travel help as well but the battle will always be soft enough for the washboard and chatter but stuff enough to soak up big hits. I had 4" air bumps with stock front and twin bypass rear for a while. The air bumps help you keep your valving a little softer.
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Unread 02-10-2014, 10:40 PM   #1083
TJdualsport
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That's a biiiiig question lol.

It really depends on your end game. Define big holes? Pics??? If I had to redo everything. It would look a lot like the currie/savvy koh rig. Money is the big factor. I'm fortunate to have my own fabrication shop and access to a lot of tools and parts. My current setup would go a long way in most situations. Tuned fox shocks hydro bumps and a lot of seat time. My next version will be coil over longer arms with Blaine's 2cents being implemented. I wasn't gonna do coil overs since coils / shock combos work extremely well. But on my last couple big runs I really pushed the jeep hard and things started bending. So we will see how the tuning goes.... Lol

But yea like said above. Shocks shocks shocks. Wheelbase helps. Rear locker helps.
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Unread 02-14-2014, 02:27 PM   #1084
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Man, I'll tell you, the thing we have the most problem with is "potholes." Not pits, not trenches, but little holes, pockmarks in the trail. I'll try to take pictures when there's not two feet of snow over the top of them, but we're talking just a foot or two across, but maybe six or eight inches deep, and often steep-sided. It's like hitting a rock, only reversed. And on my YJ and most of my XJs, you hit and they just throw you at the roof - or the roll cage, on the YJ. And nothing I've tried thus far really "smooths" them out. We ended up selling the YJ because it was just impossible to offroad under these kinds of conditions: you could go 10, maybe 15, and that's...not really how I do things.

What I can't figure out - because I get conflicting answers every time I talk to anyone - is where to start. First, no one can tell me if a YJ or CJ - way cheaper to start with, and I like 'em old - can be built to handle these conditions. And then even when people can agree on what platform to start with, some people will tell me it's springs that determine stiffness, some people will tell me shocks, some people arm length. I mean, ultimately, what you want is a longarm rig with long-travel shocks and soft springs, with good pneumatic bumpstops, but if it's going to cost me several grand just to get started, I need to find my *** a new hobby!

So I'm trying to figure out, 1) the best platform to start with [CJ/YJ or TJ], and then 2) what order to go in from there. And I figure, given the intentions of your rig, and its clear capabilities in that regard, you're probably the guy to talk to.
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Unread 02-14-2014, 03:09 PM   #1085
84jeepcj7rock
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Quote:
Originally Posted by 3278
Man, I'll tell you, the thing we have the most problem with is "potholes." Not pits, not trenches, but little holes, pockmarks in the trail. I'll try to take pictures when there's not two feet of snow over the top of them, but we're talking just a foot or two across, but maybe six or eight inches deep, and often steep-sided. It's like hitting a rock, only reversed. And on my YJ and most of my XJs, you hit and they just throw you at the roof - or the roll cage, on the YJ. And nothing I've tried thus far really "smooths" them out. We ended up selling the YJ because it was just impossible to offroad under these kinds of conditions: you could go 10, maybe 15, and that's...not really how I do things.

What I can't figure out - because I get conflicting answers every time I talk to anyone - is where to start. First, no one can tell me if a YJ or CJ - way cheaper to start with, and I like 'em old - can be built to handle these conditions. And then even when people can agree on what platform to start with, some people will tell me it's springs that determine stiffness, some people will tell me shocks, some people arm length. I mean, ultimately, what you want is a longarm rig with long-travel shocks and soft springs, with good pneumatic bumpstops, but if it's going to cost me several grand just to get started, I need to find my *** a new hobby!

So I'm trying to figure out, 1) the best platform to start with [CJ/YJ or TJ], and then 2) what order to go in from there. And I figure, given the intentions of your rig, and its clear capabilities in that regard, you're probably the guy to talk to.
In pretty proud of my cross country trip in the ole CJ. It will do 75 mph with one hand on the wheel. Crawl like crazy and can handle 25-35 mph through the sand whoops in JV with no tuning. I run 100 over 250 lb springs on King 14" CO up front. And I will be ditching the rear air shocks for CO. If I started over from scratch, I would use an old TJ for a good frame and strong aftermarket support.
105" + wheel base
Lcog
Front and rear c/o
Good bumps (I haven't used air bumps yet)
Make sure your tie rod and drag link are parallel and equal length for 0 bump steer
Hydro assist

Just my 2 cents
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Unread 02-14-2014, 11:16 PM   #1086
TJdualsport
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The saying goes.. The bigger the tire the smaller the dezert. Meaning those pot holes need bigger tires to just roll over em. Certain things like what your describing are just ****ty. Even with my nice tuning certains hits just jarred then hell out of me,.
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Unread 02-19-2014, 10:18 PM   #1087
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Gigatee
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Unread 02-20-2014, 01:46 AM   #1088
MurdaJs
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Boooiiiinnnggg
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Unread 02-28-2014, 02:02 PM   #1089
TJdualsport
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Finally progress on my jeep lol
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Unread 03-01-2014, 08:12 PM   #1090
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More progress
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Unread 03-01-2014, 08:16 PM   #1091
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Some grinding/ prepping
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Unread 03-01-2014, 08:18 PM   #1092
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Last one...
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Unread 03-01-2014, 08:52 PM   #1093
MurdaJs
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Nice to see some jeep action
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Unread 03-01-2014, 09:58 PM   #1094
TJdualsport
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Haha nooo ****.
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Unread 03-01-2014, 10:06 PM   #1095
TJdualsport
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I'm thinking of redoing my fenders like this ish what do you think.... I have a arc bender.
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