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Author Topic:   2 Link RR ??
Kromulous
Dirt Forum Champ
Total posts: 796
posted May 26, 2005 07:03 AM  
I am thinking of going to a 4 bar LR and a 2 link RR. Could any of you guys that run this set up, give me some info on how long the links should be (2 link RR in particular), spring location and shock location?

I can mount a 18" long lower link, without redo-ing my lower mount, is that long enough? I know Harris runs a really long lower link, 20" plus. Shorter link may make to much rear steer or something, not sure.

Would a coil-over set up behind the axle be a good set up?

Anyway, just looking for general input on the 2 Link RR, never run it, and i dont know nothing about it.

Thanks, Krom.

22Power
Dirt Full Roller

Total posts: 41
posted May 26, 2005 07:47 AM  
we run a 4 bar 2 link harris. your right lenght needs to be 20 3/4 center to center. we spring both springs behind the axle with sliders, and the left slider is on the birdcage. the car really hikes up and 3 wheels, but once you get used to it, its no big deal. we tried springing the right rear on top of the housing, and the car stayed very flat, no 3 wheeling, but we though for what we lost with forward bite, it wasn't worth the driveability. we run a j-bar with bilstein shocks. we have also clamped the left rear spring on the clamp in front and we thought that it was decent, but not faster than when we had it behind. with it in front we noticed the car was alot more free getting into the corner, which we did not like. if you want more info than that you gotta call me @ midwest motorsports and ask for REX. 800-262-5033 thanks and have a great day.

Larry Lundin
Dirt Full Roller

Total posts: 45
posted May 26, 2005 11:42 AM  
Hi Kromm, back in the day I had a HOWE built SW tour car. This car had a very long RR trailing arm and a much shorter LR arm. I think the theory backed by mathmatics is , that the longer arm on the RR travels in a much flater arch, thus the short arm on the left side would provide a substantial amount of rear steer without the use of 4 bars, spring indexing and all that other stuff because it travels through a much sharper arch. Thus it provides more dynamic rear-steer, Larry

GRTWallbanger
Dirt Maniac

Total posts: 196
posted May 29, 2005 10:09 AM  
When you go to a 2 link on the RR, with the RR spring behind,are you guys running a pull bar?Or a lift bar?Do you think this is better than having the RR on top or in front floated?

holeshot
Dirt Maniac

Total posts: 119
posted May 29, 2005 10:39 AM  
hey larry why did you not go to tech last week you had a good run.......... krom what kind of track do you run ? dry or hooked up bumpy or smooth?

Larry Lundin
Dirt Full Roller

Total posts: 45
posted May 30, 2005 11:14 AM  
In all the excitement of finishing 2nd and the late models entering he track, I FORGOT!!! I went to the scales first and was then given a hand signal by the official to leave, so I did. Had I followed somebody else across the scales maybe I would have followed them to the claim area. OPPS, an embarrasing and costly error on my part. After starting last, I finished 2nd at Watsonville last friday night but this time I made it to the scales and tech without failure!! To answer the other question, I run an AFCO spring loaded pullbar w/ 800lbs. spring. This gives me about 2 inches of travel.

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