Recent content by missile07
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M
Automotive Race car suspension Class
Which roll center software package do you prefer? I have been looking at the Performance trends & Auto-Ware. Both look similar but Auto-ware looks more up to date and more user friendly.- missile07
- Post #518
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
Well I don't have the settings right in front of me but I can post what I know... Bar lengths LR top 16" LR bottom 12" RR top 16" shortened to 15.75" RR bottom 12" shortened to 11.75" Bar Angles @ Ride Height LR top 24-26 degree (chassis manufacturer recommendation) LR lower 5 degree RR...- missile07
- Post #497
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
We have been trying to figure out a way to properly measure at full drop the difference in the right & left. At full drop the left side is leading 3.5 inches more than the right. For the past couple of race nights we have shortened the right side bars up to 1 inch. Driver seems to think its...- missile07
- Post #495
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
Ranger Mike...First of all I love reading all these posts & the help you have been offering us racers! On your last posts I noticed you said you like to minimize things like bump steer, rear steer, & camber build...we run 4 link modifieds on dirt and we have been playing with cutting back on...- missile07
- Post #493
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
Mender, I am very interested in learning more about how the spring rates change when things bind & what exactly that would do? We still have yet to race due to rainouts & flooding here locally, so I haven't been able to test anything out. I went back and looked at a bunch of the...- missile07
- Post #155
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
Here is an example of the chain and suspension I am talking about. This is not my car but one very similar. The chain is red and you can see it between the spring and front shock.- missile07
- Post #146
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
I agree that maybe too much weight is staying on the RF instead of transferring back to the rear but the LR is always going to hit the chain, top out the shock, or bottom out the drive shaft through the motion of the 4 link suspension.- missile07
- Post #145
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
I wish I could attach a photo of the suspension on here for you to see. The shock on the left rear does not currently top out. When the left rear drops it will continue to drop until something binds, whether that be the shock or the driveline(driveshaft into transmission). The chain is mounted...- missile07
- Post #143
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
I can get tire readings this weekend. Both rear tires were hot and glazed over after the last feature race. I think they were just sliding and spinning.- missile07
- Post #141
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
The chain is part of the chassis builders recommendations. Without the chain the left rear would continue to drop to the point of the shock topping out. We have ran without a chain before and pulled the shaft out of the shock body. both of our cars are GRT chassis and run the same setup...- missile07
- Post #139
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
I am afraid that the amount of rear steer caused by the left rear going forward is breaking the tires loose when picking up the throttle. Also we run a limiting chain on the left rear to keep the rearend from dropping so far...could this be pulling the left rear off the ground? it seems like...- missile07
- Post #137
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
Yes to the indexing. Our birdcages have two sets of holes on the top part of the cage. We can move the bar down on the holes to index. We don't do this very much. I agree with you that the shorter lengths make the car unstable. It has mounting holes that would increase my bottom lengths an...- missile07
- Post #135
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
My car is a setup to the manufacturers specs with the left rear consisting of a shock in front of the axle on the birdcage & a spring on a slider/coilover behind the axle on the same birdcage. The right rear has the shock and spring together on the front of the birdcage. When the car enters the...- missile07
- Post #133
- Forum: Mechanical Engineering
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M
Automotive Race car suspension Class
I am new to the site and I have been reading on a lot of the setup posts. I have a few questions that I can't seem to get anyone locally to answer. I run an all 4 bar modified suspension with the spring behind on the left rear and the shock/spring in the front on the right rear. What would...- missile07
- Post #131
- Forum: Mechanical Engineering