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Scot, based on your posts it looks like you already made your mind up on the cal tracs.
The Unlawful system is nothing like the street links. I see a lot of people racing and cruising with the alterkation front ends but havn't seen anybody racing with the rear ends. No offense but it just doen't look like it can take a lot of power. I am no engineer so it just my opinion. The Unlwaful system can take a ton of power where the street links seems to be more for street use.
The cal tracs do work for racing but not so good for street use, you are basically making the front half of your spring a solid link. This can and sometimes does tear parts of the car if a lot of power is applied to a weak or rusty car.
Make sure you have a solid body at the connections for the springs!!!
Like any system, cal tracs are just not as simple as bolting it on. There is going to be other stuff you need to change and upgrade. The Unlawful system is complete when you get it, shocks, springs, bolts hangers, everything you need to put it together. All the little stuff adds up. I needed nothing else for this system.
You can adjust this system to leave flat and maximize traction, or pull a big wheelie if you want to. It is all how you set the instant center and can be changed at the track in minutes, literally!!. Cal tracs can't change the instant center, only stop the axle wrap.
This is very streetable as well!!! My car handles like it's on rails.
This system is not a back half but gives you many of the same advantages. One thing about it is that you can easily go back to stock on a valuable musclecar, you can't do that with a back half.

Again, this is just the opinion of a guy who uses a particular system and likes it. It has improved my car by .20 second in the quarter.
I have my flack jacket on so fire away!!

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What's one of those set ups run money wise? And no I don't want to call somebody to find out lol, just curious

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too bad you can't run the exhaust all the way back, that's kinda half of the fun of Mopars is the tail pipes lol j/k.

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I know!! I miss my tail pipes!! I live on a dirt road and it kicks up all kinds of dust!! They will fit, just not like a pre-made TTI system. I have a box of mandrel bends. I am going to work on it after SEMA. It will give me something to do when they ship the car back from Vegas.

The other cars that have it had the down turns anyway.

I really don't see it as bashing any kind of system, it is just discussion. This kind of discussion answeres a lot of questions for people without ever having to ask

One thought though, when Calvert and Reilly designed their systems did their freinds and people that had it first talk about them and support them? Anything new will take time, especially in this economy, to get unbiased reviews. Jack's systems are out there, even one in Europe.

$10,000 is a lot of trial and error and many, many hours when he should have been building one of his own cars!!

When I say that I picked up 2 tenths, understand that I am not a weekly or even monthly drag racer. I just get in and push the gas down. The car does what the car does.

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So, it cost $10k on the Unlawful prototype to pick up .2 and will cost anyone else roughly $4k for ???

I'd go with Cal-Tracs or just back half the car. Both being proven methods. The Unlawful deal seems like a lot of BS for the money and the only ones who seem to back it up are friends of those who make it. Also, doesn't seem to be too much info on how well it works.

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You think $10 is too much for 2-1/2 long hard years of research and development? All the mistakes, the lessons learned, the test parts, all the revisions making thousands of dollars worth of parts in stock obsolete .. And all to pick up 2/10ths? You think that's all there is too it? That's the only benefit?

So our systems seem like a lot of BS do they ... what does this even mean? Are you implying all triangulated 4-link suspension systems are BS? Or just ours? What's your issue with ours? What exactly is the "BS"?

Yeah we have support from our friends, because a few close friends have been a part of the long journey to get where we are. Our friends have been a great help and involved every step of the way. You don't hear from many people who aren't our friends because there aren't a ton of systems out there, because we're finally to the point where we have our latest designs nailed down, and can finally start manufacturing systems in higher quantities to keep up with demand.

I think Irons Works (unlawfulracing.com) has done pretty good for just a father and son team with no outside help aside from a few good friends. We designed every aspect of our systems, manufacture 100% of them, created our own website & forum, make our own video advertisements, brochures, etc. So thanks for your kind words.


This thread needs a reference picture.

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No matter how you slice it, Cal-Tracs are 1/2 to a 1/3 of the cost of the Irons' setup and will likely go just as quick to the 60'. CHIP

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There's a WHOLE lot more to our system than 60' times. Ours systems are completely adjustable for ride height, stance, tire clearance, pinion angle, and instant-center. Our systems also allow for more tire clearance for a wider wheel and tire without tubbing.

My is you will have a quicker 60' with our system opposed to Cal-Tracs because there is no wasted motion when launching. The tires plant, the car jumps FORWARD. A Cal-Trac is a glorified torque arm. It's only benefit over a single torque arm bar (ladder bar), is that bolting to the spring and the spring mounting point, they effectively control the length of the front half of the spring keeping it from winding. other than preload, its not adjustable. With our 4-link setup, you can control the instant-center. By being able to move the instant center you can control the anti-squat. The more anti-squat the better for drag racing usually, because every action has an equal and opposite reaction. The harder you lift the car from the suspension moving, the harder it plants the tires.

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This is pretty simple, Cal Tracks or not, leaf springs are on the BOTTOM of the list, as far as desirable suspension for a race car. Sure some cars go fast with them, but they are nowhere near as good as a link system. In high HP applications, leafs are really hit and miss and basically suck. Yeah, that 4 bar system may be a little pricey, but way cheaper than backhalfing a car, plus anybody can install this at home. It would be an easy choice for me, if I could afford the link system, that is what I would buy. From what we have seen, the short upper bar 4 links, like this one, Mustangs and G-body's, work VERY well and will be much more predictable and adjustable than leafs, any day of the week.

Also, somebody said you can adjust the IC with Cal Tracks, no you can't. The IC is where the spring bolts into the car. The spring is attached solidly to the housing and the housing is bolted in the car, THAT point is the IC, period. You can adjust how the suspension reacts by moving the Cal Track bar, but not the IC. Like was stated, the CalTrack is a fancy slapper bar. It's only purpose is to try and keep the front segment from flexing.

Monte

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other than preload, its not adjustable.

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Cal-Tracs will make your car squat, which is wasted motion and time not going forward.

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