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Old 12-12-2008, 08:25 AM   #1
rod butcher
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Listen to Tom a set of double adjustable Afco's and if using coilovers I like to use a little stiffer spring on my car but I have my shocks mounted in front of rear. Trans or footbrake is drivers choice. They both are fast with the right set-up.
rod
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Old 12-12-2008, 09:09 AM   #2
Bill Rolik
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Rod,

Input much appreciated!

Thanks,

Bill Rolik
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Old 12-12-2008, 10:10 AM   #3
Mike Pearson
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Bill,

I have an older super stock camaro. I have a coil over/ladder bar setup in my car. I also leave on a trans brake. With a good 350 running SS/HA I ran 9.92 with 1.28 60 ft times. I now have a 327 in the car. it does not leave quite as hard. The car is very consistent. I do run a radial tire. I use the M/T 12.2x31.25 radial tire. I have had good luck with this tire. Hooks good and is much faster than the Hoosier bias ply tire that I ran prior to the radial. I back to backed the two tires and the radial was .013 quicker on several tests. I would recomend the radial tire. You will have to experiment with tire pressure to find the sweet spot for your car. Start at about 12 lbs. and work up from there. I have a single adjustable shock in the rear and double adjustables up front. I am happy with this setup. If you have leaf springs under your car now and change to coil overs make sure you install some good quality heim joints in the front of your ladder bars. The front heim is the only connection point to the frame. If this heim fails the rear end will move forward or backward and cause heavy body damage. Also you should instal a retention device at the front of the ladder bar around the heim to keep the rear end in place in the event of a failure. Most of the older cars do not have this. I had to retro fit my car after I converted from leaf springs to coil overs.
Good luck with your project
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Old 12-12-2008, 07:10 PM   #4
Bill Rolik
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Mike,

Thanks much for the input, and impressive numbers!

I would think that the 327 would react exactly as you have said, given the shorter stroke which would produce less low end torque. The 340 Mopar is actually closer to a 327 in that regard than a 350, and with a longer and heavier rod.

Both my Duster previously, and the Cuda looking forward, utilized the Comp Engineering Ladder Link with retention loops and a housing slider. In those "thrilling days of yesteryear", a slight right-side preload added became basically a set-it-and-forget-it. Rear leaf springs were/are 3400 lb factory Mopar Super Stock springs (same both sides) and will be retained. Rear shocks were basic 50/50 drag shocks from whatever supplier was offering a quality piece at the time. Tires were 12.2 X 31.25 or "W", or 11.5 X 32. I seem to recall 15-16 lbs for pressure was normal for either car. Front shocks were 90/10 in the Duster and orange Koni's in the Cuda. I can tell you that the Cuda is much more of a wheelstand-prone car than the Duster, and required fairly tight front shocks. There is every reason to think that today's shocks all around would be an improvement.

The back-to-back improvement with the radials is impressive. I am curious as to a comparison between bias tires and radials in terms of pressure: Given one vs. the other of equal size and rollout, and on equal-width wheels, are there different pressure requirements/tendencies?

Given the advances in current technology, product offerings, and rules revisions, there is a LOT of catching up to do. Starting with "Square One" is the plan.

Bill Rolik
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Old 01-06-2009, 06:17 PM   #5
steven reynolds
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Quote:
Originally Posted by Bill Rolik View Post
Mike,

Thanks much for the input, and impressive numbers!

I would think that the 327 would react exactly as you have said, given the shorter stroke which would produce less low end torque. The 340 Mopar is actually closer to a 327 in that regard than a 350, and with a longer and heavier rod.

Both my Duster previously, and the Cuda looking forward, utilized the Comp Engineering Ladder Link with retention loops and a housing slider. In those "thrilling days of yesteryear", a slight right-side preload added became basically a set-it-and-forget-it. Rear leaf springs were/are 3400 lb factory Mopar Super Stock springs (same both sides) and will be retained. Rear shocks were basic 50/50 drag shocks from whatever supplier was offering a quality piece at the time. Tires were 12.2 X 31.25 or "W", or 11.5 X 32. I seem to recall 15-16 lbs for pressure was normal for either car. Front shocks were 90/10 in the Duster and orange Koni's in the Cuda. I can tell you that the Cuda is much more of a wheelstand-prone car than the Duster, and required fairly tight front shocks. There is every reason to think that today's shocks all around would be an improvement.

The back-to-back improvement with the radials is impressive. I am curious as to a comparison between bias tires and radials in terms of pressure: Given one vs. the other of equal size and rollout, and on equal-width wheels, are there different pressure requirements/tendencies?

Given the advances in current technology, product offerings, and rules revisions, there is a LOT of catching up to do. Starting with "Square One" is the plan.

Bill Rolik
My wife & I race a 71 Demon with a big block, currently runs 10.20s in good air. Car has SS springs &
snubber only, don't want to do a complete back half, been thinking about ladder bars & housing floater.
What type of floater is on your Cuda, weld on or a bolt on type such as Comp Engineering offers?
Thanks Steve Reynolds
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Old 01-06-2009, 07:03 PM   #6
Rod Greene
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Hi Bill you got the itch to race again nice to see it. Put a stick in it and double you fun. Steven Caltracs would work well on your car and a lot cheaper than ladder bars.
Someday the enhancements will stop and I will get enthused about my Challenger again.
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Last edited by Rod Greene; 01-06-2009 at 07:06 PM.
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Old 01-22-2009, 10:13 AM   #7
Bill Rolik
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Smile Re: Ladder Bar Car: Trans Brake or Foot Brake?

Quote:
Originally Posted by Rod Greene View Post
Hi Bill you got the itch to race again nice to see it. Put a stick in it and double you fun. Steven Caltracs would work well on your car and a lot cheaper than ladder bars.
Someday the enhancements will stop and I will get enthused about my Challenger again.

Hey Rod,

If I were to put a stick in ANY race car (yeah, that's gonna happen), the only "enhancement" would be more breakage! You and Eric V. can keep that stuff to your self!

Bill Rolik
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Old 01-22-2009, 10:07 AM   #8
Bill Rolik
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Default Re: Ladder Bar Car: Trans Brake or Foot Brake?

Steve,

Send me your e-mail address and I will forward some photos of the floater arrangement.

My e-mail is bremotorsports@verizon.net

Thanks,

Bill Rolik

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