Re: 4 link preload
[Re: eds dart]
#1023594
06/30/11 07:59 PM
06/30/11 07:59 PM
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Joined: Nov 2003
Posts: 10,384 Upstate NY
Bigcube
I Live Here
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I Live Here
Joined: Nov 2003
Posts: 10,384
Upstate NY
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That's not out of line. Usually the more HP it makes, more preload will take. Shouldn't take more than a flat or 2. Little bit will go a long way if you already have 50# in it. How hard was it pulling to the right? Do you have a AR bar? With a AR bar you can usually get away with less pre-load. I still have a bit in my car to get it to launch nice and straight. Not exactly sure how much because my car needs to be re-scaled.
Jim
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Re: 4 link preload
[Re: eds dart]
#1023596
06/30/11 09:16 PM
06/30/11 09:16 PM
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Joined: Dec 2009
Posts: 20,679 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,679
in a cattle trailer down by th...
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I've never scaled my car so I don't know how much preload is actually in it but I have two full turns on the top right bar, no AR bar though I know I need one.
"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.
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Re: 4 link preload
[Re: Bigcube]
#1023599
06/30/11 11:34 PM
06/30/11 11:34 PM
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Joined: Feb 2007
Posts: 206 indy
eds dart
OP
enthusiast
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OP
enthusiast
Joined: Feb 2007
Posts: 206
indy
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been out pumping fuel and loading the truck up. 1.40 and 1.41 when it would go right. didn,t seem to matter which lane which made me think i was pretty close and a little more preload would help.car definately doesn,t like equal rear weights.
Last edited by eds dart; 06/30/11 11:36 PM.
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Re: 4 link preload
[Re: eds dart]
#1023600
07/01/11 12:32 AM
07/01/11 12:32 AM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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Do you have someone equal to your weight sitting in the drivers seat. If not you are lost when it comes to starting line corner weights. I set my car neutral. Then get someone equal to my weight to sit in car. Then I dial in however much preload it takes to make the car go straight. My antiroll is then installed neutral as it does not take on any part of the preload, just maintianing the stabilitly in the rear of the car.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: 4 link preload
[Re: eds dart]
#1023606
07/07/11 10:20 PM
07/07/11 10:20 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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You ever tried checking the thrust angle on the car. There is no way that car should need 1.5 turns of preload. You are compensating for something. Probably rear steer or dishrag frame.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: 4 link preload
[Re: eds dart]
#1023609
07/08/11 01:39 PM
07/08/11 01:39 PM
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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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Where's the CG of the car... but if it was wheel standing the IC was most likely forward of the CG.... also whats the weight bias
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