What's new
By:
Filters

Cage diameter vs buggy weight in racing

Wfoyota said:
Agree and I have not. But to what degree is 2" stronger? And what is the reasoning behind the magic number of 4400 lbs (unless this is just something voted on that sounded like a solid choice)?
Click to expand...
Simply put, 4400 class used the magic number of 4400 lbs because it wouldn't make sense otherwise...actually I don't have a clue but it seems logically illogical enough to make sense. :lmao:

Wfoyota said:
Solid info. You learned me something after all even if you couldnt see that those wiring pics I sent you were for a relay :lmao:
Click to expand...
Next time, pretend to be color blind and tell him all the wire colors are gray, lighter gray, black, slightly darker black, etc...

dirtzuk said:
I took a hard roll over in the summer down onto a sharp rock.. Sheared the tube right off behind the B pillar .. 1.75 dom .120 wall .. Buggy is 3500 lbs full of fuel gear/tools/spares
IMG_20230721_162731_441~2.jpg
IMG_20230721_162731_524~2.jpg
IMG_20230721_162731_602~2.jpg
Click to expand...
That's some impressive carnage!
 
Last edited:
EXTREMETOWNIE said:
I was told ( no go on 1 3/4 over 4400). I can not figure a way for my car to loss enough weight. No KOH for me this year.
Click to expand...
Considering the rule book (as it currently exists as of this post), states 2'' for main structure when weighing over 4400 pounds, would it be possible to redo the main structure out of 2'' but leaving the 1.75" in the other areas to still be able to race?
 
ridered3 said:
Considering the rule book (as it currently exists as of this post), states 2'' for main structure when weighing over 4400 pounds, would it be possible to redo the main structure out of 2'' but leaving the 1.75" in the other areas to still be able to race?
Click to expand...
Yes. I know of one car that is still racing that had that done. Was actually an 1 1/2 car. Cut the A B and C pillars out. Re halo’d it with 2” and it’s GTG.
 
JR4X said:
Yes. I know of one car that is still racing that had that done. Was actually an 1 1/2 car. Cut the A B and C pillars out. Re halo’d it with 2” and it’s GTG.
Click to expand...
At that point it would almost seem better to just build a new car. You could incorporate any changes for ease of service, comfort, safety, less weight and any technological improvements you wanted to make and fix your cage problem at the same time. With all the improvements people have to make to race their trail rigs it would seem a better use of time and funds to start anew and possibly be competitive.
 
Ghetto Fab. said:
At that point it would almost seem better to just build a new car. You could incorporate any changes for ease of service, comfort, safety, less weight and any technological improvements you wanted to make and fix your cage problem at the same time. With all the improvements people have to make to race their trail rigs it would seem a better use of time and funds to start anew and possibly be competitive.
Click to expand...
Would be crazy amount of work to finish a new car in time for KOH. Replumb, rewire, new driveshaft, exhaust etc.

I'm not even talking about money.

If you have a good car that has a main structure that's too small, cutting it and going 2" sounds like a solid plan.
 
JR4X said:
Yes. I know of one car that is still racing that had that done. Was actually an 1 1/2 car. Cut the A B and C pillars out. Re halo’d it with 2” and it’s GTG.
Click to expand...
Cool deal. I figured it was possible but wasn’t sure how logical.
 
Ghetto Fab. said:
At that point it would almost seem better to just build a new car. You could incorporate any changes for ease of service, comfort, safety, less weight and any technological improvements you wanted to make and fix your cage problem at the same time. With all the improvements people have to make to race their trail rigs it would seem a better use of time and funds to start anew and possibly be competitive.
Click to expand...

if someone's car is old enough for this to be a problem, its unlikely they are competitive and a new chassis with bigger tubing isnt going to do the trick.

the only way a new car would make sense is if you have it modeled, just change the tubing sizes and print another.
 
mobil1syn said:
if someone's car is old enough for this to be a problem, its unlikely they are competitive and a new chassis with bigger tubing isnt going to do the trick.

the only way a new car would make sense is if you have it modeled, just change the tubing sizes and print another.
Click to expand...
I'm not saying they build a new car just like their trail car, but with bigger tubing, I'm saying they might as well build a new car and actually be competitive.
 
Bebop said:
Would be crazy amount of work to finish a new car in time for KOH. Replumb, rewire, new driveshaft, exhaust etc.

I'm not even talking about money.

If you have a good car that has a main structure that's too small, cutting it and going 2" sounds like a solid plan.
Click to expand...
Yes, but if I was planning on racing I would have looked at the rulebook a little sooner.
 
Bebop said:
That's not how grandfathering works...
Click to expand...
How does that even factor into this? I thought grandfathering a cage in was only for current race chassis that had been teched at some point and that even had a time limit. You couldn't just show up with a new chassis or your trail chassis and expect them to pass it. With safety being safety, I'm surprised they even allow grandfathering. From comments here it sounds like they are stopping that practice, at least in regards to cage diameter.
 
Ghetto Fab. said:
How does that even factor into this? I thought grandfathering a cage in was only for current race chassis that had been teched at some point and that even had a time limit. You couldn't just show up with a new chassis or your trail chassis and expect them to pass it. With safety being safety, I'm surprised they even allow grandfathering. From comments here it sounds like they are stopping that practice, at least in regards to cage diameter.
Click to expand...
They stopped grandfathering old racecars, which is why a lot of lower end teams with older chassies are in a bind now.
 
Bebop said:
Would be crazy amount of work to finish a new car in time for KOH. Replumb, rewire, new driveshaft, exhaust etc.

I'm not even talking about money.

If you have a good car that has a main structure that's too small, cutting it and going 2" sounds like a solid plan.
Click to expand...
If someone was good with BendTech etc. doesn't seem that hard to me to do a replace job. Plot old cage and design new in 2" on centerline and bend it all up. Using good tube notcher the old tubes could be coped back to the new line pretty easily, obviously this is a theory....
 
Bebop said:
They stopped grandfathering old racecars, which is why a lot of lower end teams with older chassies are in a bind now.
Click to expand...
Correct. If the older chassis had been tech’d/tagged previously then it was grandfathered in as good to go.

For years U4 kept that practice going while dangling the carrot that at some point in the future grandfathering in wouldn’t be a practice anymore. 2024 is supposed to be the first year of no longer grandfathering but according to Dave, the rule book didn’t change so not sure what that means for grandfathered cars.
 
Last edited:
mobil1syn said:
if someone's car is old enough for this to be a problem, its unlikely they are competitive and a new chassis with bigger tubing isnt going to do the trick.

the only way a new car would make sense is if you have it modeled, just change the tubing sizes and print another.
Click to expand...
Not everyone is out there to win it all. Some just want to experience being in the race.

Re-tubing to a 2" in compliance cage is a weekend with a bender, couple buddies, $1000 in materials, and some know-how. Re-chassis is months of work, minimum.
 
SLOWPOKE693 said:
The latter is called trail riding with your buddys. Showing up to a race like KOH just to cruise around and create unnecessary traffic and/or be a trail plug to say you "raced koh" is a dick move in my opinion. But I'm also an asshole, so there is that aspect too.
Click to expand...
Pro racers need the weekend warrior guys just as much as the dedicated trail guys need the jk mall crawlers....
 
SLOWPOKE693 said:
The latter is called trail riding with your buddys. Showing up to a race like KOH just to cruise around and create unnecessary traffic and/or be a trail plug to say you "raced koh" is a dick move in my opinion. But I'm also an asshole, so there is that aspect too.
Click to expand...
So KOH should be a race with 20 people like NASCAR in your opinion ?
Genuine question.
 
SLOWPOKE693 said:
The latter is called trail riding with your buddys. Showing up to a race like KOH just to cruise around and create unnecessary traffic and/or be a trail plug to say you "raced koh" is a dick move in my opinion. But I'm also an asshole, so there is that aspect too.
Click to expand...
Who said anything about cruising around? Most are going absolutely balls to the walls.

They’re just doing it in a 6+ year old chassis they bought from another team, fully aware that they’re highly unlikely to win.

If it was truly a problem or “dick move”, Ultra4 would have eliminations during qualifying.




And I’m saying this as a former pro road racer whose last race was ended early by just such a racer. That dude’s attitude after the wreck is what gave him the honorific of “dick”, not the stupid move he made while getting lapped (ahem, 3 fucking laps into the race). A lot of the guys I raced with started in this fashion and eventually made a career out of it. Yes, some were rolling chicanes. It’s part of racing.
 
SLOWPOKE693 said:
First off there are 43 drivers/cars in a cup race not 20 so please don't pin that # on me.

Qualifying, that's how.
Click to expand...
I think there are maybe 20 people that have a shot at the podium for KOH.
I made that number up.
 
You must log in or register to reply here.
Top Back Refresh