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Author Topic:   four bar vs. swing arm....
Dirt Maniac

Total posts: 199
posted May 21, 2004 11:37 AM  
we were having this discussion and thought i would see what u guys think....which is better, to me if the swing arm was best, then more late models would be on it since they are looking for traction on slick 100 lap races just like the modifieds with our skinny tires..granted they are on wider tires but they are also in a constant search for traction..but around here, nearly all late models are four bars, not swing arms but you are seeing alot more swing arms on modifieds...if swing arm is the way to go on mods, then why or why not does it have an advantage over the four bar on a mod..whaddya think??

Ego Racing
Dirt Forum Champ
Total posts: 724
posted May 21, 2004 04:11 PM  
We run a Super late model in florida and we have run in some of the Extreme dirt car series. When the track is rough there are a lot of drivers that goto a Z-link right rear and the 4 bar left. Latemodels are mostly set up to drive off of the left rear, that is why you see the tire climb up under the car so hard. It cannot do this to the point it dose with the Z-link on the left. (The Z-Link is a swingarm setup but the spring is on the birdcage insetad of on the lower arm.)
With the modified tires being smaller and the tire already trying to hold a heavier car you need to try to drive off of both rear tires. You can still get the left rear to crawl under the car but it is using both tires more than a LM. Where we are about Wide open past the center of the cornerand letting the rear steer the car out of the corner modifieds need a little more time off of the throttle.

Dirt Freak

Total posts: 236
posted May 22, 2004 09:45 AM  
A swing arm Z link is way better on a ruff track than a 4 bar. The design keeps the rear end from getting upset as much over the chuck holes and ruts. Are track was realy ruff last week and the top 6 cars were all z links. Atleast this is what I see in my area.

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