“Brophy Jeep” Street Legal Ultra4 4500 class CJ6

[Rockchump]

Sadly this is the most up to date of the build!! I will keep adding pictures as I get updates but they will not be as often. Thanks everyone for following along and chatting it up. If you have question or want more detailed pictures let me know!

 

[RunningProblem]

Bottom of walker hill!

Frankie? You must know Pfeifer with the tan FJ40.

Edit: also…was there a Cherokee with an LS swap doing burnouts inside your shop last winter/this spring??

 

[Rockchump]

Frankie? You must know Pfeifer with the tan FJ40.

Yeah I’m good buddies with dave. I am a prospect with SRC too.

 

[RunningProblem]

He was my best man. Known him decades. He got me into one tons and wheeling.

 

[Rockchump]

Frankie? You must know Pfeifer with the tan FJ40.

Edit: also…was there a Cherokee with an LS swap doing burnouts inside your shop last winter/this spring??

No not my shop. I’m in the Bay Area.

 

[Rockchump]

He was my best man. Known him decades. He got me into one tons and wheeling.

I’ve know dave 12 years now. Met Frankie the other weekend when we went wheeling. I was his Uber! lol

 

[1Sinner]

Hey bud! I dunno how I missed this one. Easier to follow on here and compare notes as I go through my cj-6 build as well. Good to see you over here.

 

[Rockchump]

Hey bud! I dunno how I missed this one. Easier to follow on here and compare notes as I go through my cj-6 build as well. Good to see you over here.

That’s why I prefer Instagram over Facebook for social media. Not sure how you missed it either. I think I’ve posted so much in here it been on the first page if not top of first page that whole time! 😂

Nice. Got a link to your build on here.

 

[Bebop]

Fuck yeah !

Baja is the shit.

 

[1Sinner]

CJ5 wild stretch and full build (Big Booty Judy)

I started off calling it cj6½ (for the extra 6 inch stretch) but this weekend she became Big booty Judy. started this in late August last year and have enough progress to post. Joined Irate today, because after a long time idle on Pirate I finally figured out where everyone went. Over the...

irate4x4.com

 

[Rockchump]

Need to remove the .375” spacer and change the Balancer and I can go back to stock LS1 depth accessories. Return for the PS pump is going to be directly below the reservoir so there should be zero cavitation.

 

[Rockchump]

Steering box mount, pitman arm and track bar done. Just need to weld out!! This steering is a pain to package but I think it will be well worth it.

 

[Rockchump]

 

[Rockchump]

 

[SLOWPOKE693]

Is it safe to assume you will be putting a big ass skid plate under the steering box to protect it and the pitman arm from the rocks?

 

[Rockchump]

Is it safe to assume you will be putting a big ass skid plate under the steering box to protect it and the pitman arm from the rocks?

We will see how the Winch mount shapes up. They will likely be tied in as the winch will be kicked back at the same angle of the grill and it will be in between the frame rails and in a tray. Please see advanced PAD (pencil aided design) drawling!!

 

[Penetrode Offroad]

The fuck does that say?

 

[Rockchump]

The fuck does that say?

What does what say?! lol

 

[SLOWPOKE693]

The fuck does that say?

Winch

Rope

Grill

 

[Rockchump]

Winch

Rope

Grill

Thank you!!

 

[SLOWPOKE693]

 

[Rockchump]

 

[Rockchump]

 

[Rockchump]

 

[Rockchump]

 

[gt1guy]

I might me or the camera angle but, does the inside tire turn waaaaaay more than the outside tire?

 

[Rockchump]

I might me or the camera angle but, does the inside tire turn waaaaaay more than the outside tire?

Your eyes are good. It has a good amount of positive Ackerman angle. The “outside” tire is designed to hit the steering stop while the inside tire can turn more. All cars have positive Ackerman it’s what keep the front from scrubbing while turning. As you turn the outside and inside tires are on different radius’s. If there was zero Ackerman the inside tire would scrub.
In the old day! LMAO when spidertrax first introduced the 60* 1550 stuff we ran negative Ackerman where the outside tire ran 60* and the inside closer to 50* this was because the tire would not clear the lower links in most cases. The “scrub didn’t matter because we were going so slow and the outside tire typically had more weight load and helped turn the car especially in front dogs!!
Different Motorsport disciplines actually use different Ackerman angles. Formula 1 is slightly negative Ackerman and drifting typically is slightly positive or zero (think shopping cart! Who has drifted a shopping cart?) hahahahah
Regular road cars and most everything else has paid it be Ackerman. The picture shown is zero Ackerman

Ackermann steering geometry - Wikipedia

en.m.wikipedia.org

 

[Rockchump]

I might me or the camera angle but, does the inside tire turn waaaaaay more than the outside tire?

Open wheel with negative Ackerman

 

[Rockchump]

These are the mock up wheels and tires (39”x13.50” BFG kralwers on 17”x9” Hutchinson 4.75”BS. The actual race wheels and tire will be 37”x12.5” BFG krawlers on 17” Trail Ready 3.5”BS so they should clear by a mile.

 

[gt1guy]

Your eyes are good. It has a good amount of positive Ackerman angle. The “outside” tire is designed to hit the steering stop while the inside tire can turn more. All cars have positive Ackerman it’s what keep the front from scrubbing while turning. As you turn the outside and inside tires are on different radius’s. If there was zero Ackerman the inside tire would scrub.
In the old day! LMAO when spidertrax first introduced the 60* 1550 stuff we ran negative Ackerman where the outside tire ran 60* and the inside closer to 50* this was because the tire would not clear the lower links in most cases. The “scrub didn’t matter because we were going so slow and the outside tire typically had more weight load and helped turn the car especially in front dogs!!
Different Motorsport disciplines actually use different Ackerman angles. Formula 1 is slightly negative Ackerman and drifting typically is slightly positive or zero (think shopping cart! Who has drifted a shopping cart?) hahahahah
Regular road cars and most everything else has paid it be Ackerman. The picture shown is zero Ackerman

Ackermann steering geometry - Wikipedia

en.m.wikipedia.org

I have a little grasp on Ackermann. The pic without tires looked crazy, your pic below looks more "sane?"

I built what I've always called 100% Ackermann into my pile of shit. Because I'll be driving it on the street and don't want to sound like a drifter pulling into the good spots at the mall.

Look close at the F1 pic................he's turning the steering wheel left.


Your build is looking fantastic