Rear Spring Perch Adjustment
18 posts
• Page 2 of 2 • 1, 2
The softer spring rates we use mean less sensitivity to corner weight differences. There are three elements:
Weight ratio Front to Rear
Weight difference Side to Side (ballast)
Cross weights - Right Front vs Left Rear & Left Front vs Right Rear
For braking stability it's very desirable to have equal weights in the front L/R
Weight dffierences side to side can be adjusted via moving the battery, spare etc.
Cross weights have a greater handling effect with cars with higher spring rates but does have some effect with road cars negotiating left vs right hand corners. A link to a good article that explains measurement, the effects and means to correct.
https://grassrootsmotorsports.com/articles/understanding-corner-weights/
Weight ratio Front to Rear
Weight difference Side to Side (ballast)
Cross weights - Right Front vs Left Rear & Left Front vs Right Rear
For braking stability it's very desirable to have equal weights in the front L/R
Weight dffierences side to side can be adjusted via moving the battery, spare etc.
Cross weights have a greater handling effect with cars with higher spring rates but does have some effect with road cars negotiating left vs right hand corners. A link to a good article that explains measurement, the effects and means to correct.
https://grassrootsmotorsports.com/articles/understanding-corner-weights/
There is no cure for Lotus, only treatment.
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StressCraxx - Coveted Fifth Gear
- Posts: 1415
- Joined: 26 Sep 2003
Yeh i got it late, on my 980kg race car it has a totally different set up so my pre-load is super sensitive as my spring rates are much closer to my corner weights. I wouldn't dream of setting the ride height with the pre-load but then it must work on Elans.
Chris
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Grizzly - Coveted Fifth Gear
- Posts: 2020
- Joined: 13 Jun 2010
18 posts
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