Re: Cal Tracs
[Re: Longo Racing]
#966425
04/04/11 11:53 PM
04/04/11 11:53 PM
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Joined: Oct 2004
Posts: 8,165 Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,165
Left Coast
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Quote:
what is the rule of thumb on setting the cal track system. I have a 10.5 tire and a mono leaf spring was suggested. I heard that an 1/8" off the leaf spring. Suggestions please. And also there are three hole settings also and how do i know which one to set on. Thank you for the input usterWork
Calvert Racing has a customer service dept that is second to none. Give them a call.
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Re: Cal Tracs
[Re: topside]
#966427
04/05/11 07:44 PM
04/05/11 07:44 PM
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Joined: Jan 2003
Posts: 4,852 KENTUCKY
69CHARGERMD
master
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master
Joined: Jan 2003
Posts: 4,852
KENTUCKY
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Soft inital hit - lower hole, zero preload Harder initial hit - lower hole, preloaded Even Harder initial hit - upper hole zero preload Hardest initial hit - upper hole with preload
another one i found....
CAL-TRAC SETTINGS Top hole – Hardest Hit
Bottom hole – Softer Hit, moves IC forward
More Pre-load, Softer Hit
Less Pre-load, air gap, harder hit
If car pulls to the right add a quarter turn of pre-load to the right bar and visa versa.
Set front shocks soft
Set rear shocks on #5, if car wants to porpoise go to 6 or 7 (harder).
If car spins, needs harder hit
Too much wheel stand…. Softer hit, restrict front travel
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Re: Cal Tracs
[Re: 69CHARGERMD]
#966428
04/05/11 07:50 PM
04/05/11 07:50 PM
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Joined: Jan 2003
Posts: 4,852 KENTUCKY
69CHARGERMD
master
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master
Joined: Jan 2003
Posts: 4,852
KENTUCKY
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Information on how to set up your CalTracs suspension. ( Found this on another forum) I thought I would make a POST FOR setup and issues that almost everyone has with Caltracs. Also a place to start from for the first run/test pass along with how to adjust after you have a few passes. Start at the front and make sure the front control arms are not binding. This is one of the biggest issues. You can do this with after market bushings or control arms or just elbow grease. The control arms should fall on their own without having to push them down. The front springs need to be of a drag style that will give you the best weight transfer you can and MUST HAVE AT LEAST 5" OF UPWARD TRAVEL IN THE FRONT END. Shocks should be of a good drag style. I use the CalTracs shocks and there are great adjustable shocks for big wheelstanding cars. After doing all the above, SET THE SHOCKS AT FULL LOOSE FOR THE FIRST FEW RUNS. FOR THE REAR, same thing binding is the number 1 issue most the time it's in the shackels and the front leaf spring mounting bolt. Every car I see the bolts are over tightened. You should be able to push the rear down 5-6" easy without the shock or Caltrac mounted. Lube all bushings well and don't over tighen. Make sure theres no binding, any adjustment later will work. I always start in the upper hole and preload 1/4-1/2 depending on the appliciation. Shock settings ON REAR, I always start at full tight on extension. Know that the car is setup for a test pass; have someone video it. The car will DO only a few THINGS now. IT WILL HOOK AND PULL A HUGE WHEELIE; IT WILL HOOK AND DO WANT YOU NEED; IT WILL HOOK AND pull left or right; IT WILL HOOK AND SPIN 20FT OUT; IT WILL KILL THE REAR TIRE BY HITTING IT WAY TOO HARD IF YOU HAVE DONE EVERYTHING UP TOP; I'M 95% SURE IT WILL ONLY DO ONE OF THESE THINGS. IF IT HOOKS AND PULLS A HUGE WHEELIE THEN TIGHTEN THE FRONT SHOCKS. THIS SHOULD BE THE ONLY REASON TO TIGHTEN THE FRONT SHOCK. IF IT HOOKS AND PULLS TO THE RIGHT OR LEFT THEN PUT A LITTLE PRELOAD ON THE SIDE IT PULLS TO. IF IT HOOKS AND SPINS 20FT OUT START, LOOSEN THE EXTENSION ON THE REAR SHOCKS 1-2 CLICKS AT A TIME TILL IT HOOKS AND STAYS ON THE REAR TIRE. IF IT KILLS THE REAR TIRE, YOU NEED TO PUT THE BARS IN THE LOWER HOLE AND ADJUST THE SAME AS YOU WOULD IN THE UPPER HOLE. IF YOU HAVE LOWERED THE CAR A LOT, THERE ARE OTHER TRICKS TO DO BUT FOR THE MAJORITY OF THE CalTracs cars OUT THERE, this will be ALL YOU NEED
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Re: Cal Tracs
[Re: 69CHARGERMD]
#966429
04/05/11 07:51 PM
04/05/11 07:51 PM
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Joined: Dec 2006
Posts: 235 Tucson AZ.
RADAMX
enthusiast
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enthusiast
Joined: Dec 2006
Posts: 235
Tucson AZ.
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Quote:
CAL-TRAC SETTINGS Top hole – Hardest Hit
Bottom hole – Softer Hit, moves IC forward
More Pre-load, Softer Hit
Less Pre-load, air gap, harder hit
If car pulls to the right add a quarter turn of pre-load to the right bar and visa versa.
Set front shocks soft
Set rear shocks on #5, if car wants to porpoise go to 6 or 7 (harder).
If car spins, needs harder hit
Too much wheel stand…. Softer hit, restrict front travel
That pretty well covers it. Most High HP cars use the bottom hole because they are hitting it hard already .I'd say anyone with 900 + hp should always use the bottom hole with no gap on the spring.
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Re: Cal Tracs
[Re: OneRunSon]
#966438
04/06/11 07:32 AM
04/06/11 07:32 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
doug, thanks for the great info. can you give us the additional info / tricks for a lowered car.
If the rear of the car is lowered it will tend to transfer the weight easier(less height the front has to climb to get over the CG)... you would do 1 or 2 things soften the rear shock setting so the rear can lift a bit more or tighten the front shocks and or tie the front down with travel limiters
So I'm presuming that the Rancho 9000's set on 9 would be the stiffest on extension?? and 1 would be the softest which would let the rear rise too quickly...right???
You are correct
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Re: Cal Tracs
[Re: MR_P_BODY]
#966439
04/07/11 12:16 AM
04/07/11 12:16 AM
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Joined: Jan 2009
Posts: 1,044 Victoria, Australia
Ian
super stock
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super stock
Joined: Jan 2009
Posts: 1,044
Victoria, Australia
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thanks for this informed post ,what do you guys make of this ? with my homemade caltracks i have set up in my crapa is lower hole shocks on 1, 0 pre load is the only way this will hook 2inch lowed blocks ,split mono leaf ,calvert 90/10 my 60 ft are 1.6 ,will it work better with a small air gap , with pre load it spins.
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Re: Cal Tracs
[Re: moparniac]
#966442
04/07/11 07:53 AM
04/07/11 07:53 AM
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Joined: Feb 2007
Posts: 970 Backwater, PA
bwdst6
Bob George Racing #1 Fan
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Bob George Racing #1 Fan
Joined: Feb 2007
Posts: 970
Backwater, PA
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Calling Doctor Howard, Doctor Fine, Doctor Howard... Calling Doctor Howard, Doctor Fine, Doctor Howard!
This post is available in double vision where drunk.
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