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Author Topic:   3-link lr
washeduptoo
Dirt Maniac

Total posts: 155
posted May 30, 2004 08:17 PM  
If you had the lr on a 3-link with the spring clamped in the front(not on swing arm), what advantage or disadvantage would a short swedge tube have over longer swedge tube. I have seen some cars around here that run that set up with a z-link rr and they are fast. Just hunting information, we might try it if yall think this will have an advantage. Thanks

zeroracing
Dirt Forum Champ
Total posts: 1875
posted May 30, 2004 09:12 PM  
the advantage to this is on the lr the 2 link set up will gain thrust angle. so you put shorter link on it to gain thrust angle fast, also it will add some rearsteer to the car.
on the rr you run the z link because it will gain thrust angle on the right side threw body roll also. so if your lr is on a 2 link and your rr is on a z link, then when the body rolls you will gain thrust on both sides and be faster.
a 4 link lr is much much better than the 2 link lr but the 2 link is very simple still and hard to dial out of the ball park.

washeduptoo
Dirt Maniac

Total posts: 155
posted May 31, 2004 04:04 AM  
Thanks for the information. We are running the 4-link lr now with the spring in the front clamped, but it appears to be binding, not enough room. We ran the same track Sat that we ran last week and car had a bad push with the same setup, and it appears lr spring is binding when you get on the trottle, they were concerned space might be a problem when they put spring in front. So now they have put the spring on elimators and put it behind the rear end. Going try it this week if weather permits. Also, I've seen some cars with springs straight up and down and some with angles, how does this affect the suspension? Thanks, again.

zeroracing
Dirt Forum Champ
Total posts: 1875
posted May 31, 2004 09:32 AM  
it changes the roll rate of the car. thats it. someguys like to have them up and some angled. just driver preference on how fast or hard he wants soem roll.

washeduptoo
Dirt Maniac

Total posts: 155
posted June 01, 2004 09:34 AM  
By putting the spring behind the rear end on the lr on eliminator 4-link, do you have to change spring rates if you put spring behind? We are planning to run some spring. I see some cars running the spring behind and some in the front, is this drivers preference? We ran this set up last year on the lr but the rr was on a swingarm z-link and spring was on the swingarm but now is on rear end. Thanks,

FASTLAP
Dirt Maniac

Total posts: 171
posted June 02, 2004 11:18 PM  
I've run both spring in front & behind, zlink rr. My two cents, seems like the spring in front would be better suited for stop-n-go tracks, where spring behind seems better for bigger, momentum type tracks. I'd increase spring rate 25# moving it from front to rear.

washeduptoo
Dirt Maniac

Total posts: 155
posted June 03, 2004 08:46 AM  
Thank yall for your replys. I'll see if we have a spring slightly stiffer. Don't know if we'll get to race this weekend, depends if it quits raining.

washeduptoo
Dirt Maniac

Total posts: 155
posted June 04, 2004 11:29 PM  
Just got in from races and we led the whole heat race with the new set up until until he lost a battery connection, didn't finish. Got the car to tight for the feature, but did finish in the top ten. Car was the best it has been, again, thanks for the help.

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