Launch is working better, but looking worse - 460 Ford Forum
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post #1 of 20 (permalink) Old 10-19-2008, 12:15 PM Thread Starter
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Launch is working better, but looking worse

Removed the rear sway bar. Tossed 150 lbs of steel plate in the trunk. Replaced front shock oil with diesel fuel.

Car was running high 1.50's to low 1.60's on the spray at a good track prior to changes.

This time out, we averaged 1.55 on a poorly prepped track.

The funny part is, the body roll is back, and having the cal tracs completely out of the picture in the past pass made zero difference in the launch.

Very strange, and I don't understand why the cal tracs are not working at all.


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post #2 of 20 (permalink) Old 10-19-2008, 01:50 PM
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Looks like the body roll is worse with every adjustment, can't tell much on weight shift. Sre is a nice looking car. 8)

let it happen.
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post #3 of 20 (permalink) Old 10-19-2008, 02:28 PM
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ladderbars............... 8)

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post #4 of 20 (permalink) Old 10-19-2008, 03:28 PM Thread Starter
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Quote:
Originally Posted by richter69
ladderbars............... 8)
You know, another goober at the track gave me the same advice....lol.....

As the body roll got more pronounced, the 60 foot times came down.

Greg

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post #5 of 20 (permalink) Old 10-19-2008, 03:30 PM
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I'm having the same problem with mine. No matter what adjustment I make the car reacts the same. I'm going to get a real set of slicks and give up on the ET Streets.

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post #6 of 20 (permalink) Old 10-19-2008, 10:16 PM
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I do for the most part believe in the Caltrac idea......however i do not feel they are a cure all fix all on all cars. I've messed w. mine so much and made HUGE gains. I finally got a 1.562 w. my F100 w the front tires in the air. And if everyone remembers i started out getting the rear tires off the ground when i first put them on.

Honestly Cavert markets em as a bolt on cure all.........in all reality, this just isn't true. I feel some vehicles have a more favorable suspension design to handle the caltracs in bolt on form then others. ( I say this cause i've seen vid of 3 other trucks that are getting the rear tires in the air just like mine did)


Something as simple as rear ride height can make a huge diffrence, and would be the first thing id look into.

The one thing that i can say is everytime i lowered the front of my bar down.......body seperation, bounce and 60fts were reduced. mine started out at 12degree up w it in the lower hole when i first installed them. Everytime i did something to lower the front point everthing in my launch became better. Just today i ran em at 3deg down and got my best 60ft to date.

Keep after it Greg, Im confident you can make it work better. :lol:
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post #7 of 20 (permalink) Old 10-19-2008, 10:50 PM
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Has anybody compared the Caltracks to a good old fasioned pair of ugly assed slapper bars? They always worked for me... although I was running a puny FE not a 500 plus inch torque monster. I've seen early stangs in the 9's with clamped together leaf-springs and slapper bars though.

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post #8 of 20 (permalink) Old 10-20-2008, 04:57 AM
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Greg, if you unhooked the rear sway bar that could be where some of the body-roll is coming from with nothing back there to slow/reduce the roll.

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post #9 of 20 (permalink) Old 10-20-2008, 07:11 AM
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Greg from just looking at it she looks much better ---- you are getting there dont give up man " you can doo it "



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post #10 of 20 (permalink) Old 10-20-2008, 12:24 PM
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Quote:
Originally Posted by BBBob_M
Has anybody compared the Caltracks to a good old fasioned pair of ugly assed slapper bars? They always worked for me... although I was running a puny FE not a 500 plus inch torque monster. I've seen early stangs in the 9's with clamped together leaf-springs and slapper bars though.
I haven't tried the cal-tracs yet but with the slapper bars I have gotten a 1.67 60ft on motor and a 1.53 on spray delaying the shot about a tenth out. This is with MT drag radials. I can't leave on the bottle or it will basically bunny hop. I since changed the shock mount and shocks in the rear but haven't got it adjusted perfect yet but I hope to get into the 1.49 range with a full slick and a tight shock setting.
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post #11 of 20 (permalink) Old 10-20-2008, 05:52 PM
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Personally I still think your springs are the trouble. I think they are too loose and are allowing too much movement. That is where the body roll comes from. They can't control the power. In the video it looks like your are arching a bunch. That isn't going to push the car forward.

I know on my friends stockers and on my CJ car, springs made a big difference. Your car seems to be reacting how mine did. The rear spring is too active and gets ahead of the front of the car. It then can't get up on the tire like it should and your 60' suffers. My buddies wore out a few pair of their springs also maybe your are just shot. How old are yours? Did you ever measure them when you installed them. You might also want to try adding some clamps to them and see what that does. Its fairly low buck and easy to try. Keep chipping away.

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post #12 of 20 (permalink) Old 10-20-2008, 06:15 PM
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Put sway bar back on
r shock 1 click
l shock 9 to max on rebound

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post #13 of 20 (permalink) Old 10-22-2008, 11:20 AM
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Greg, could you post a picture or two of what your caltrac/suspension goemetry looks like as installed? Im just wanting to see if i can find a launch charastic that matches a given suspension geometry.
We both have big hp and heavy machines, and like you mine didn't respond much at all to diffrent shock settings or stiff bar preloads until i started to change things drasticly.

Mike
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post #14 of 20 (permalink) Old 10-22-2008, 03:37 PM
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Greg, it could be worse...check out the Chebby in this thread...

http://www.jalopyjournal.com/forum/s...t=60+chevy+ron

Mike

IN: Staring adversity in the face while working on your car and coming out on top

OUT: Finally realizing that every $%&# thing you touch on your car turns to adversity
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post #15 of 20 (permalink) Old 10-22-2008, 03:40 PM
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Duplicate post... :roll:

Mike

IN: Staring adversity in the face while working on your car and coming out on top

OUT: Finally realizing that every $%&# thing you touch on your car turns to adversity
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