Penetrode Offroad
Red Skull Member
- Joined
- May 20, 2020
- Member Number
- 493
- Messages
- 545
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“Brophy Jeep” Street Legal Ultra4 4500 class CJ6
Rockchump
They call me Bondo
I’m not sure what costs more…. The Motec hardware or the software, expansions and time to pay someone to set it up! lol I think most people don’t understand what it takes to do one of these super high end jobs.
Rockchump
They call me Bondo
John Webb almost lost his car and his life while he was sleeping in the trailer when something caught fire on the way to KOH 2024. I forget what happened. But he was able to cobble the car back together and still race KOH this year!!Dont end up like pjaf loosing his shit in a trailer fire.
ridered3
Low Talent Wheelin
That was a scary scenario and amazing story when all said and done.
Bebop
Well-known member
- Joined
- May 26, 2020
- Member Number
- 1458
- Messages
- 4,847
Facts.
I've only had one brave soul ask me for a quote. I told him to sit down before opening the email.
We went with Holley
Rockchump
They call me Bondo
Facts.
I've only had one brave soul ask me for a quote. I told him to sit down before opening the email.
We went with Holley
Bebop
Well-known member
- Joined
- May 26, 2020
- Member Number
- 1458
- Messages
- 4,847
Rockchump
They call me Bondo
Everyone’s a baller until it’s time to put the AMEX down!! Myself included too! lol
Rockchump
They call me Bondo
One of the many things I regret and will probably change down the road is I did not make the rear upper links adjustable at the frame end. I was pretty confident that this was where it needed to be.
I guess time will tell. But I’m still gonna send it and see how it does. lol.
I guess time will tell. But I’m still gonna send it and see how it does. lol.
Rockchump
They call me Bondo
I went with a non traditional geometry and may it’s suck fat dicks maybe it’s awesome. Once it’s running and shocks are tuned. I’ll report back.
pennsylvaniaboy
make fullsizes great again
- Joined
- Jun 27, 2020
- Member Number
- 2192
- Messages
- 1,061
mine are adjustable.....another rear 4 link i did it adjustable.....neither have even been moved. DId the math and made it level etc and sent it.One of the many things I regret and will probably change down the road is I did not make the rear upper links adjustable at the frame end. I was pretty confident that this was where it needed to be.
I guess time will tell. But I’m still gonna send it and see how it does. lol.
gt1guy
Apparently a racist
That 4 link calculator assumes 100% rear drive bias, as in 2wd. When in 4wd, the rear anti-squat will be HALF of what the calculator is saying it is.
The newer versions of the calculator allow you to select the front bias %. Zero % front bias would be 2wd, 50% front bias would be 4wd, 100% front bias would be like when doing front digs. The newer calculators automatically adjust the rear numbers for the bias input for the front.
Maybe you already knew all this and wanted 27% AS when in 4wd. Just thought I'd point it out.
edit:
I'm also not sure what bias that 3 link calculator is assuming either. Maybe Treefrog can shed some light on the subject.
I do know the newer calculators do the front and rear at the same time and spit out a wealth of information.
The newer versions of the calculator allow you to select the front bias %. Zero % front bias would be 2wd, 50% front bias would be 4wd, 100% front bias would be like when doing front digs. The newer calculators automatically adjust the rear numbers for the bias input for the front.
Maybe you already knew all this and wanted 27% AS when in 4wd. Just thought I'd point it out.
edit:
I'm also not sure what bias that 3 link calculator is assuming either. Maybe Treefrog can shed some light on the subject.
I do know the newer calculators do the front and rear at the same time and spit out a wealth of information.
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I went with a non traditional geometry and may it’s suck fat dicks maybe it’s awesome. Once it’s running and shocks are tuned. I’ll report back.
I built a customer an LJ many years ago with very similar numbers F&R and that bitch handled awesome and climbed like a billy goat. You will be happy with those numbers.
Rockchump
They call me Bondo
That’s awesome!! Thanks for sharing and the feedback!!I built a customer an LJ many years ago with very similar numbers F&R and that bitch handled awesome and climbed like a billy goat. You will be happy with those numbers.
All You guys make this fun!! I wan to side bar this and see what you guys are building and driving!
I went and met Mac and see big booty Judy not long ago on my SoCal trip
Rockchump
They call me Bondo
This was started 10 years ago and I was building under the old assumption of people claiming 100% antisquat and wanted half of that to make it better at going fast and more neutral.
I put the number in the calculated 2 years ago.
It would be interesting to plug the number in to the newer version. I just went off what I saw work and not work and used theory to come up with some rough numbers and also how it fit the frames and stuff.
That's about how long ago I built that LJ. I read everything I could find at the old site about 4/3 link setups and used the "suspension design for getting it" thread to help me decide where I wanted to go with the setup. I had to massage the frame a bit to get it all to work but in the grand scheme of things it wasn't bad.
More pics of that rig.....
And this is what it looks like after 10+ years of hard rock crawling up in the Northeast.....
Would you hurry up and finish this thing.
Rockchump
They call me Bondo
that’s a badass Jeep slowpoke!!
Looks like he got his moneys worth out of it !! lol
Looks like he got his moneys worth out of it !! lol
Rockchump
They call me Bondo
I looked at how short course and desert
Trucks suspension were designed. Correlation and cause and effect of roll center and instant
Center and anti squat in relation to shock tuning.
I’ve seen some cars that rock crawl good but could not climb the sand hill to right exiting back door! lol. They just dig to china!! May have been they were on maxxis tires too. lol.
Treefrog
Book Wheeler
To my knowledge all of the calculators that only look at one end use 100% bias.
Treefrog
Book Wheeler
Looks pretty normalI went with a non traditional geometry and may it’s suck fat dicks maybe it’s awesome. Once it’s running and shocks are tuned. I’ll report back.
. Looks like it should be well behaved and preform like most U4 4500s. Please do report back on how it does.10 years ago this may have a bit abnormal on pirate, but these days flatter links are the standard.
Rockchump
They call me Bondo
Yeah much more common these days.Looks pretty normal
10 years ago this may have a bit abnormal on pirate, but these days flatter links are the standard.
I tried to keep the rear upper flat and front lower flat and kinda built from there.
Appreciate the input!! You guys will definitely get videos once it’s running!!
I started ahead of the curve but time passed me by!! lol.
gt1guy
Apparently a racist
So it seams that what everyone was building to, was in fact half that in the real world.
Given that there have been shit loads of rigs built like this, and the work, 25%AS is the new 50%AS with the newer calculators.
I just find that interesting and cool.
The Jimmy's 4x4 U4 cars and the stuff Joefab, Joe Thompson posted on the other site were all running flat link angles like that and were unique at the time. I messed around with the old calculator guessing numbers and angles based on the pictures of those cars I could find and came up with something I thought would work. Not going to lie, it was a total roll of the dice and I wasn't exactly sure what was going to happen with it but it ended up working out beyond my expectations. Nobody back then thought it was going to be a good crawler if it drove down the street good...
It was low, especially for a full bodied rig on 42s back then. The front had 7" of up travel and the rear had 8" with 16" ORI's all around and those tires didn't rub a thing no matter how you flexed it out.
I'm at the drivers door and I'm 6'1. The owner was somewhere around 5'10 for reference....
I'm at the drivers door and I'm 6'1. The owner was somewhere around 5'10 for reference....
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Rockchump
They call me Bondo
Exactly. Everyone was convinced of 100% anti squat was the only way for rock crawling etc.The Jimmy's 4x4 U4 cars and the stuff Joefab, Joe Thompson posted on the other site were all running flat link angles like that and were unique at the time. I messed around with the old calculator guessing numbers and angles based on the pictures of those cars I could find and came up with something I thought would work. Not going to lie, it was a total roll of the dice and I wasn't exactly sure what was going to happen with it but it ended up working out beyond my expectations. Nobody back then thought it was going to be a good crawler if it drove down the street good...
I was not on the other site much after 2011 I took a break. I was working at Shaffer’s after hours and working full time. He and I talked a lot of theory analyzing various rigs. I really enjoy learning from people.
Remember air shock rigs with 8” of up travel and stupid low roll centers that looked like slinky’s going down the road. Double triangulated 4 links.
Rockchump
They call me Bondo
My dad bought my mom a LJ in 2004 for Mother’s Day. lol. A few years before he bought her a new 4x4 quad for the ranch. lol. It had 3k mile in 2008 and 10k miles in 2012 when we sold it after he passed in 2011. I had the option to buy that for $15k or a commuter Honda civic for $2k. I chose the civic to save money as I had started building the CJ6. Man was I fuck stupid it was so clean!!!It was low, especially for a full bodied rig on 42s back then. I'm at the drivers door and I'm 6'1. The owner was somewhere around 5'10 for reference....
I think Jeep should have only Built the LJ and stopped building the TJ!
My dad bought my mom a LJ in 2004 for Mother’s Day. lol. A few years before he bought her a new 4x4 quad for the ranch. lol. It had 3k mile in 2008 and 10k miles in 2012 when we sold it after he passed in 2011. I had the option to buy that for $15k or a commuter Honda civic for $2k. I chose the civic to save money as I had started building the CJ6. Man was I fuck stupid it was so clean!!!
I think Jeep should have only Built the LJ and stopped building the TJ!
That one was an 06 with 14K miles on it when I started cutting it up. Its nice working on stuff that's not all beat to shit before the customer brings it to you.
I built a Samurai with a 3/4 link on 35s for another guy before I built that LJ. This was the rig I used to proof of concept the 3/4 link ideas I used on the LJ and as you can see in the second picture it crawled well and had no weird handling issues even though it didn't have sway bars.
It was cool but waaay to small for someone my size to wheel it comfortably but the owner fit in it like a glove.
TiTRD
Red Skull Member
You should have bought mine, it was lowerIt was low, especially for a full bodied rig on 42s back then. I'm at the drivers door and I'm 6'1. The owner was somewhere around 5'10 for reference....
Pretty sure I've wheeled with him at some point.
You should have bought mine, it was lower
Pretty sure I've wheeled with him at some point.
You shouldn't have sold yours you fool!
Probably. He's a member of Mass Crawlers and the old Summit Crawlers/Trailers Slayers crew. He also wheels a tube chassis purple (silver now) jeep buggy that he picked up a few years ago. You probably know who's old buggy it was, I think it came from up your way.