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 Post subject: Re: 4 link bar angles?
 Post Posted: Mon Aug 23, 2010 1:46 am 
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I realize that about the rear brakes etc. But what you have to remember is that if the rear brakes were to hold all the torque then the axle reaction is zero so the four link wont be doing anything, just like in a t-brake car. The simple test is if you sit on the line and footbrake a car and the front end rises then you have front antidive working at that point. I'm just suggesting that you may like to think about the front end antidive and its contribution to your problem.


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 Post subject: Re: 4 link bar angles?
 Post Posted: Tue Sep 07, 2010 9:10 pm 
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Well I decided since none of the more common IC locations was working with my combination, I would take the weight out, dial up some serious anti
squat, and take the hit out with shock settings and see how that worked this weekend. Moved the IC to 44.5 out and 13.5 up with a wopping 190 percent anti
squat and it made the car a ton better off the line. I ended up with 8 clicks of extension in the shocks and none in the compression. After I got the shocks dialed in I made 14 passes with a 60 ft between 1.414 and 1.422.


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 Post subject: Re: 4 link bar angles?
 Post Posted: Wed Sep 08, 2010 1:08 am 
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If you read the recent thread that I participated in with a discussion with Billy, you will see the correlation between how I set our car up and what you just experienced.


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 Post subject: Re: 4 link bar angles?
 Post Posted: Wed Sep 08, 2010 9:13 am 
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moparacer wrote:
Moved the IC to 44.5 out and 13.5 up with a wopping 190 percent anti squat


Hummm, can't quite figure out how you got THAT much??? Is that 190% a type O? The squat/anti-squat line is usually referred to as 100% and on my car those dimensions would likely only put it at like 110% or so? With your car being higher off the ground, I'd think that you would need to be about 20 inches up to get that much? :-k

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 Post subject: Re: 4 link bar angles?
 Post Posted: Wed Sep 08, 2010 10:16 am 
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Ken, I used the IC calculator on Inductionmotorsports.com
I uploaded a pic of it but I used print screen to save it so you might not be able to make it out.

http://i892.photobucket.com/albums/ac12 ... quatIC.jpg

That's where I came up with the 190 anti squat, but maybe its wrong.....


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 Post subject: Re: 4 link bar angles?
 Post Posted: Wed Sep 08, 2010 1:03 pm 
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10 inches up at 53 inches out gives me right at 100%. Right now I'm at 53.5 out and 5.0 up and that gives me 51%. I've been running that setup now for a couple of years with pretty good success. Only thing that has changed is tire size and I've gone from a 34 back to a 32 and now another 32 which is actually 33. Friday a week ago we were a best of 1.166 in the short times and had several others in the 1.17s so that setting along with those 30761 MTs I got from Ron Owens a few weeks back are really kicking some arse. The car leaves with wheels up and carries them for almost two car lengths.

I guess this just goes to show that what works for one car won't necessarily work for another, hey. I guess that shorter IC is what allows you to get that 190% number.

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 Post subject: Re: 4 link bar angles?
 Post Posted: Thu Sep 09, 2010 5:15 am 
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#-o is your lower bar pointing up or down??

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 Post subject: Re: 4 link bar angles?
 Post Posted: Thu Sep 09, 2010 8:56 am 
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Beretta wrote:
#-o is your lower bar pointing up or down??


If you look at the pic in the link he posted up the page, you'll see that the bottom bar is pointing up. With that much antisquat it has to be that way.

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 Post subject: Re: 4 link bar angles?
 Post Posted: Sat Sep 11, 2010 9:39 pm 
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Yep its pointing up. I will have to put a angle finder on it and see what the degree is tomorrow. I know, in most cases it's dead wrong, but with my car it works. I think my car leaving so lazy makes it want the extra anti squat to keep the tire dead hooked.

Getting ready for the NHRA division 1 finals at US13.


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 Post subject: Re: 4 link bar angles?
 Post Posted: Sun Sep 12, 2010 10:43 am 
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I think John said his is going up also #-o ....

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 Post subject: Re: 4 link bar angles?
 Post Posted: Sun Sep 12, 2010 8:34 pm 
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Its 4 degrees up.


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