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View Full Version : Indexing RR lower up on birdcage



awesome1
01-18-2011, 08:59 AM
What will raising the RR lower 4 bar up on the birdcage do for the car? If i am thinking correct it should make the rr index into the spring quicker.

CHUMBA
01-18-2011, 09:59 AM
it takes spring out of rr and loosens car on entry

MasterSbilt_Racer
01-18-2011, 11:28 AM
What will raising the RR lower 4 bar up on the birdcage do for the car? If i am thinking correct it should make the rr index into the spring quicker.

Correct.

RR wheel rate increases. Generally tighter entry and looser exit.

You will lose some loose roll steer and the rr top rod will lose some thrust load to the rr lower also. This is because the rr lower is closer to the axle (smaller moment arm) and the rotational forces on the birdcage still have to even out.

CHUMBA
01-18-2011, 10:03 PM
sorry my bad I assumed he ment on frame. my brain was indexed too much