Ladder bar car with bounce in suspension - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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post #1 of 21 (permalink) Old Jul 6th, 19, 5:51 PM Thread Starter
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Ladder bar car with bounce in suspension

I know this is mostly all chevelles but you look were you can and find insight on things regardless. I actually have a 68 camaro it weights 2760 with me in the car. It runs 5.80s in the 1/8 on 175 shoot. The car has been back halfed with 9" and qa1 single adj shocks with 190lb springs. Shocks set on 9 Ladder bar is set on the lowest hole, the front shocks are comp engineer 3 way shocks set at 80/20. I do no prep with the car. The car drives straight without hardly any actually driving the car. When I take it to the track to get a time on it after the car sits back down even on motor you can hear in the videos and even see it. The car acting like it's loading and unloading but as soon as I hit high gear it quits and starts pulling really hard. My question is how do I get the bounce out of the car? Do I need to tighten up the coil over springs on the rear or does it sound like I need a heavier spring rate for the rear
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post #2 of 21 (permalink) Old Jul 7th, 19, 12:51 AM
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Re: Ladder bar car with bounce in suspension

Imo, the qa1's are the biggest factor. I would recommend a double adjustable shock, and the same spring rate to start...
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post #3 of 21 (permalink) Old Jul 7th, 19, 1:17 AM
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Re: Ladder bar car with bounce in suspension

are you saying the car is rocking after it sets down from a wheel stand
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post #4 of 21 (permalink) Old Jul 7th, 19, 1:20 PM Thread Starter
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It's not rocking is almost like the back tires are bouncing and causes the car to load and unload. The car leaves out hard it only lifts the front about 6" or so for about 5'-10' out then when it sits back down it has a bounce to it till I hit high gear then bargains to pull really hard with no issues. I will log in on my wife's phone to try and upload a video of the car to better explain it.
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post #5 of 21 (permalink) Old Jul 7th, 19, 1:22 PM Thread Starter
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Ok it seems it won't let me attach a video only pictures and that's not going to help a lot on seeing what I'm talking about with the car
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post #6 of 21 (permalink) Old Jul 7th, 19, 1:23 PM Thread Starter
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What double adjustable shock would you go with?
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post #7 of 21 (permalink) Old Jul 7th, 19, 1:47 PM
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Gary
 
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Re: Ladder bar car with bounce in suspension

i would go with afco on the front with thier wheel stand valve option. you need a lot more compression damping on the front than what you have. those front shocks are ok for a 12 second car
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post #8 of 21 (permalink) Old Jul 7th, 19, 6:12 PM Thread Starter
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I will look into them for the front. The only reason I haven't changed them out yet was I got the car going 2 seasons ago and about 5 passes into it i broke about all the teeth off the ring gear and it was a stock suspension car at the time with a stock rear end. Then decided this won't happen again so I done all the work to the car and I had just put them shocks on so figured they would work for a while. But that does make more since it's almost like a sea saw after it sits back down and if they have front shocks just for wheel stands then that might actually fix the problem that I'm having
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post #9 of 21 (permalink) Old Jul 7th, 19, 7:17 PM
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Gary
 
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Re: Ladder bar car with bounce in suspension

you will still have to find the best damping setting for compression and rebound front and rear but they work. look at how most nhra superstock cars land after giant wheel stands. they completely absorb the energy. just better shocks would help also but these are the best. Another thing that would help is travel limiters on the upper a arms if you don't already have them. Your car is plenty fast enough to benefit from limiting the front end travel. This would also help the pitching
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post #10 of 21 (permalink) Old Jul 7th, 19, 7:40 PM
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Re: Ladder bar car with bounce in suspension

Post your video to youtube and set as only persons with link may access, then post link here.
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post #11 of 21 (permalink) Old Jul 7th, 19, 9:11 PM Thread Starter
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Ok I'll try and get on there and post it and relay the link to the sit
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post #12 of 21 (permalink) Old Jul 7th, 19, 9:49 PM Thread Starter
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My wife's going to get it posted on YouTube tomorrow. The video that she's going to put on there was at a no prep at the other end of a track but you can still hear and see what I'm fighting with. The car does good I'm just trying to get all the bugs out of the car before I really try and make it competitive around my area
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post #13 of 21 (permalink) Old Jul 8th, 19, 12:59 PM
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Quote:
Originally Posted by Ironman711 View Post
I know this is mostly all chevelles but you look were you can and find insight on things regardless. I actually have a 68 camaro it weights 2760 with me in the car. It runs 5.80s in the 1/8 on 175 shoot. The car has been back halfed with 9" and qa1 single adj shocks with 190lb springs. Shocks set on 9 Ladder bar is set on the lowest hole, the front shocks are comp engineer 3 way shocks set at 80/20. I do no prep with the car. The car drives straight without hardly any actually driving the car. When I take it to the track to get a time on it after the car sits back down even on motor you can hear in the videos and even see it. The car acting like it's loading and unloading but as soon as I hit high gear it quits and starts pulling really hard. My question is how do I get the bounce out of the car? Do I need to tighten up the coil over springs on the rear or does it sound like I need a heavier spring rate for the rear
The car is hitting the tires to hard and needs double adjustable shocks. I went through this with my Chevelle as the power increased so did the bounce. Think of a basketball the rear tires do the same thing if you dont control it with the shock.

Brian
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post #14 of 21 (permalink) Old Jul 8th, 19, 2:28 PM Thread Starter
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Would it help to stiffen up the rear shocks on the car so it would absorb most of the initial hit on the tires
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post #15 of 21 (permalink) Old Jul 8th, 19, 3:06 PM Thread Starter
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This is how the car sits race ready
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