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Caltracs and backhalfed axle? #1016623
06/20/11 02:08 AM
06/20/11 02:08 AM
Joined: Sep 2005
Posts: 769
Europa, Estonia
Georg Offline OP
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Georg  Offline OP
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Do anyone use combo like backhalfed rear axle and Caltracs with monoleafs or everybody going automaticly to 4-link when backhalf their car?


Outlaw Plymouth Valiant R5/P7 Powered by Liuzzo Racing COMP Performance Group dealer in Baltic Premium Performance
Re: Caltracs and backhalfed axle? [Re: Georg] #1016624
06/20/11 08:29 AM
06/20/11 08:29 AM
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Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
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Personally I see no reason to use CalTracs if you're going to back half the car, I mean why would you?


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016625
06/20/11 10:03 AM
06/20/11 10:03 AM
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Posts: 12,391
Taxes & Virus's R-US, NY
Dragula Offline
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Yes I do....Its a V code car and I will not cut it up further, at least for now. See link in my sig.

Or this link, what is the question?
http://s427.photobucket.com/albums/pp357/cudahalr/70HemiCuda/?start=all

Last edited by Dragula; 06/20/11 10:06 AM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Caltracs and backhalfed axle? [Re: Dragula] #1016626
06/20/11 10:09 AM
06/20/11 10:09 AM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
But if you back half it you've already cut it up.

I can see running CalTracs for not cutting the car up, I have them on my Duster, it's an original 340 4 speed car with the only option being the over the roof tape stripe.

Last edited by Guitar Jones; 06/20/11 10:12 AM.

"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016627
06/20/11 11:35 AM
06/20/11 11:35 AM
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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cudadoug Offline
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Between a rock & a hard place
If you HAD to have leaf springs, I'm sure it would work fine. But I'd be curious as to WHY...

Re: Caltracs and backhalfed axle? [Re: cudadoug] #1016628
06/20/11 04:08 PM
06/20/11 04:08 PM
Joined: Sep 2005
Posts: 769
Europa, Estonia
Georg Offline OP
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Georg  Offline OP
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Quote:

If you HAD to have leaf springs, I'm sure it would work fine. But I'd be curious as to WHY...



Why not? What is bad about Caltracs? There are many guys out there who hit very fast times with skinny rear slicks with Caltracs. Why not trie them with backhalfed car? I just personally like this suspension and one thing less to buy (as I allready have this Caltrac full kit)
Or are there some reasonable excuse why not to use Caltracs?

Thanks!


Outlaw Plymouth Valiant R5/P7 Powered by Liuzzo Racing COMP Performance Group dealer in Baltic Premium Performance
Re: Caltracs and backhalfed axle? [Re: Georg] #1016629
06/20/11 04:14 PM
06/20/11 04:14 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
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Posts: 20,640
in a cattle trailer down by th...
Yes there are very reasonable excuses not to use CalTracs.

1. They are OK on good tracks but hit and miss on marginal tracks. Mine would be very inconsistent in the late rounds at night. Same could be said for a very hot track, but on a well prepped track they worked great.

My four link goes down the track everytime regardless of the temp or time of day.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016630
06/20/11 04:19 PM
06/20/11 04:19 PM
Joined: Jun 2011
Posts: 14
ohio
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fasterdart Offline
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ohio
no reason to back half the car.we run 1.2x 60 ft times with cal tracs and 29.5x10.5 tire.dead consistant every time...the car runs 8.90s also.

Re: Caltracs and backhalfed axle? [Re: fasterdart] #1016631
06/20/11 04:28 PM
06/20/11 04:28 PM
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
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cudadoug Offline
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Okay, if you already own them and the springs I can see why you'd like to try them, don't blame you as even ladder bars and decent shocks are going to cost $1,000 here in the US.

That said, the bars themselves won't know WHAT they're on, a OEM subframe of a "back-half" deal...as long as they're installed correctly, they will do just as good of a job as they would on a non-back-half car.

DO IT and let us know what happens!

Re: Caltracs and backhalfed axle? [Re: fasterdart] #1016632
06/20/11 04:29 PM
06/20/11 04:29 PM
Joined: Sep 2005
Posts: 769
Europa, Estonia
Georg Offline OP
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Georg  Offline OP
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Posts: 769
Europa, Estonia
Quote:

no reason to back half the car.we run 1.2x 60 ft times with cal tracs and 29.5x10.5 tire.dead consistant every time...the car runs 8.90s also.



what horsepower we are talking?
Iam building Pro-Street class car and Iam more than sure that I cant get any grip with 10.5" tires in our slippy tracks. Also we trie to get Charger weight down a lot. Whole new floor (new firewall what is also moved back because of back moved location of motor and tubbed rear from right behind front fraim rails. Front fraim rails have to be original in this class, everything else can change


Outlaw Plymouth Valiant R5/P7 Powered by Liuzzo Racing COMP Performance Group dealer in Baltic Premium Performance
Re: Caltracs and backhalfed axle? [Re: Georg] #1016633
06/20/11 04:33 PM
06/20/11 04:33 PM
Joined: Jun 2011
Posts: 14
ohio
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fasterdart Offline
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car made over 1100 h.p.,stock front suspension,weighs 3330 w/me in it race ready.ou tracks around here are marginal at best...

Re: Caltracs and backhalfed axle? [Re: fasterdart] #1016634
06/20/11 04:37 PM
06/20/11 04:37 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
Paddle faster! I hear banjo music!
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Joined: Dec 2009
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in a cattle trailer down by th...
Quote:

no reason to back half the car.we run 1.2x 60 ft times with cal tracs and 29.5x10.5 tire.dead consistant every time...the car runs 8.90s also.




With what a traction controlled starting line limited turbo or a nitrous set up on a timer? Even my friends 3.9 V6 stocker Dakota has trouble from time to time. From personal experience I will tell you that CalTracs will never be as good or as consistent as a 4 link car, period. Sell the CalTracs, heck that whole setup is darn near $1000 here with the good shocks and buy a four link, you won't be sorry you did.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016635
06/20/11 05:07 PM
06/20/11 05:07 PM
Joined: Jun 2011
Posts: 14
ohio
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fasterdart Offline
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ohio
car is n/a...we only pull 6 degres timing out on the hit for .2 sec...you gotta know how it works and you must have good front end travel.

Re: Caltracs and backhalfed axle? [Re: fasterdart] #1016636
06/20/11 05:26 PM
06/20/11 05:26 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
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in a cattle trailer down by th...
Quote:

car is n/a...we only pull 6 degres timing out on the hit for .2 sec...you gotta know how it works and you must have good front end travel.




I know how they work, I've had my Duster on the back bumper with them for 2 passes, third pass and it's on marbles. It's not the bars, it's the tracks. You must only run on very good tracks. Not all of us have that luxury.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016637
06/20/11 05:34 PM
06/20/11 05:34 PM
Joined: May 2004
Posts: 12,391
Taxes & Virus's R-US, NY
Dragula Offline
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Quote:

But if you back half it you've already cut it up.

I can see running CalTracs for not cutting the car up, I have them on my Duster, it's an original 340 4 speed car with the only option being the over the roof tape stripe.




Actually I didn't cut it up, its been that way since the early '70's and with as much tire as I run, its not an issue. With SS springs it was horrible. With mono's and caltrac's it leaves like a ladder bar car. No wind up, no lag, just gone.

On the other hand I have a G-code '72 Cuda I am working on, and it has the Caltrac's with mono's and stock wheel wells and I am strongly thinking of putting ladder bars on it. Smaller tire, I think ladders or 4-link is better.

Last edited by Dragula; 06/20/11 05:36 PM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016638
06/20/11 05:53 PM
06/20/11 05:53 PM
Joined: Jan 2003
Posts: 32,394
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Quicktree Offline
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Quote:

Quote:

car is n/a...we only pull 6 degres timing out on the hit for .2 sec...you gotta know how it works and you must have good front end travel.




I know how they work, I've had my Duster on the back bumper with them for 2 passes, third pass and it's on marbles. It's not the bars, it's the tracks. You must only run on very good tracks. Not all of us have that luxury.


what track do you race at?

Re: Caltracs and backhalfed axle? [Re: Georg] #1016639
06/20/11 06:55 PM
06/20/11 06:55 PM
Joined: Feb 2007
Posts: 5,080
organ
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maximum entropy Offline
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organ
i would go with the 4 link when backhalfing just because it takes so much more fabrication, which is really fun. then you end up with a suspension that is ubber adjustable.


for what is the good life if not doing things thoughtfully?
Re: Caltracs and backhalfed axle? [Re: Quicktree] #1016640
06/20/11 06:58 PM
06/20/11 06:58 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
Paddle faster! I hear banjo music!
Guitar Jones  Offline
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Posts: 20,640
in a cattle trailer down by th...
Quote:

Quote:

Quote:

car is n/a...we only pull 6 degres timing out on the hit for .2 sec...you gotta know how it works and you must have good front end travel.




I know how they work, I've had my Duster on the back bumper with them for 2 passes, third pass and it's on marbles. It's not the bars, it's the tracks. You must only run on very good tracks. Not all of us have that luxury.


what track do you race at?




Mostly at Orlando Speed World, it's OK most times but others times, especially late at night it's not. That particular time I described was the Gamblers race at Silver Dollar after the division finals. I race some of the outlaw tracks too like Lakeland and CFRC been to Moroso, Bradenton, Gainseville many are nice tracks some not so.

I had to let out of it with the wheels in the air during the King of the Track night at Speed World one year, I was about to take out the tree and the motorcycle in the other lane. Car was fine up to that point but it was about 2am. Like I said on a good track they work, on a marginal track it's hit and miss.

Last edited by Guitar Jones; 06/20/11 07:00 PM.

"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Caltracs and backhalfed axle? [Re: Guitar Jones] #1016641
06/20/11 07:28 PM
06/20/11 07:28 PM
Joined: Jun 2011
Posts: 14
ohio
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fasterdart Offline
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our tracks are marginal at best,nice tracks are a luxury.but trust me,we dont run on many...

Re: Caltracs and backhalfed axle? [Re: fasterdart] #1016642
06/21/11 12:34 AM
06/21/11 12:34 AM
Joined: Oct 2003
Posts: 1,134
OHIO THE HEART OF IT ALL
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OHIO THE HEART OF IT ALL
my 65 is backhalfed and i have cal trac's.when i bought the car it was a cobbled up old race car.the frame rails were sawed in half to make room for the 14x32 tires.it was a mess.so i backhalfed it and put 33-21.5 mickeys on it and put leafs on it beacuse i wanted to street drive it.looking back i wish i would have put a 10.5 tires and a ladder bar on it.it has never sixty footed as well as it did with 002-003 s/s springs.but it is way more consistant in the sixty foot with the cal-trac's.with the s/s spring it either hooked or spun.even on a marginal track its never more than three or four numbers off with the cal-trac's.

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