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Author Topic:   RR Suspension ?
Kromulous
Dirt Forum Champ
Total posts: 796
posted September 29, 2004 07:48 AM  
Whats you alls opinion on the best RR suspension set-up for traction (fwd) for a dry slick race track. Non rubber down.

Z-Link (spring on arm, or spring behind or on housing)
2-Link (swing arm, spring on arm)
3-Link (spring behind)
4-Link (spring FWD or behind)


norightturn
Dirt Maniac

Total posts: 159
posted September 29, 2004 08:35 AM  
4 link spring in front.

zeroracing
Dirt Forum Champ
Total posts: 1875
posted September 29, 2004 08:39 AM  
overall traction would be z link, clamped in front.
but the car would be very loose. because getting so much rr drive.
alot of people like 4 link spring in front, this has less bite then the z link, that is why it is tighter.

Kromulous
Dirt Forum Champ
Total posts: 796
posted September 29, 2004 09:36 AM  
How would it be loose? loose on entry or just side bite in general ?

Majic Maker
Dirt Full Roller

Total posts: 36
posted September 29, 2004 10:41 AM  
3 link rr with spring on top

zeroracing
Dirt Forum Champ
Total posts: 1875
posted September 29, 2004 10:49 AM  
the z link will gain thrust as the body rolls over, this will givethe rr more drive off the corner, and make the car loose, but it will have more overall bite. when you roll the car onto the rr the upper bar is gaining alot of angle.
the 2 link spring on top rr will have the least amount of bite, which will make the car tight.
it just depends on what you want loose, nutral, or tight.
4 link will give nutral to tight most the time(unless odd angles or springs), z link will give you loose to nutral, depends on angles, and the 3 link rr with spring on top will let the car lay over and the lr will be doing all the biting so the car will be tighter. tight does not always mean more overall bite.

Kromulous
Dirt Forum Champ
Total posts: 796
posted September 29, 2004 11:30 AM  
I'm not understanding something here Zero. Drive and loose, and bite and tight ? explain to me how your using these terms please, cause i dont understand what your saying.

You say the Z-Link has more drive and it makes the car loose, loose how? front end push? or side bite loose in the rear?

Also you say the 2-link has the least amount of bite, which will make the car tight, tight how? I dont follow that one at all.

Its just a terminology thing i'm sure, i referr to things differently i guess.



bizkit
Dirt Maniac

Total posts: 139
posted September 29, 2004 11:47 AM  
quote:
Originally posted by Kromulous:
I'm not understanding something here Zero. Drive and loose, and bite and tight ? explain to me how your using these terms please, cause i dont understand what your saying.

You say the Z-Link has more drive and it makes the car loose, loose how? front end push? or side bite loose in the rear?

Also you say the 2-link has the least amount of bite, which will make the car tight, tight how? I dont follow that one at all.

Its just a terminology thing i'm sure, i referr to things differently i guess.



He is saying the RR will have more traction and out pull the LR off the corner thus giving the driver a loose off feeling. Same reason us latemodel guys don't run a softer RR tire than LR

Kromulous
Dirt Forum Champ
Total posts: 796
posted September 29, 2004 12:59 PM  
So it becomes more of a balancing act between RR drive (FWD bite) and LR drive. Makes more since to me now.

zeroracing
Dirt Forum Champ
Total posts: 1875
posted September 29, 2004 03:18 PM  
yeah he is right, you want a good balance of lr and rr bite, many set ups today either get to much lr or too much rr. either on the gas push or on the gas loose.

FlyNLoIMCA17
Dirt Forum Champ
Total posts: 753
posted September 29, 2004 04:49 PM  
I have found out about balance here lately. My car was setup by a local racer, it had 210lbs of LR. I bought some scales and done it my self, My theory was that the 4 bar LR didn't need as much LR bite as compared to his 3 bar because of more mechanical leverage with the 4 bar. So I set it up with 70 lbs. of LR and the car drove much better to me AND the tires temps were lower and more balanced. You were talking about loose and tight........The way I look at it there are different forms of each. For example: Loose- means the car is turning. or lack of rear traction. Tight- car is biting. or lack of bite and the car is skating. Thats just my opinion. Hope it helps.

Dale

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