Bracket Talk
Soft tail shock data

This topic can be found at:
https://drr.infopop.cc/eve/forums/a/tpc/f/80760912/m/8567026196

September 09, 2019, 08:47 AM
Bucky
Soft tail shock data
Anybody collecting shock data on their soft tail cars?
I used to, but tire shake killed my sensor. So time to invest in a new sensor.
With my last setup, I seemed to control the car dead hooked best if the initial movement was fairly fast to extend, and then gradual extension for another second and tapering off to just staying there except for bumps. The little bit of data with my new setup had a good bit of recovery (compression) after the initial extension. But I am also running only 4.5 psi to keep these Hoosiers from shaking. I'm maxing out my extension dampening as well as compression and lowering my two step to try to improve this. But this is a new ball game for me trying to avoid shake. I know the tire is a problem and I am replacing those before next season.(revalving shocks as well) I may be chasing after an impossible solution. But sure would like to see what others have for shock travel on faster soft tails.


Foxtrot Juliet Bravo
September 09, 2019, 09:25 AM
seabass
I have a shock sensor on a 4link Hoosier tires


J.R. Baxter

""Fathom the hypocrisy of a Government that requires every citizen to prove they are insured ..but not everyone must prove they are a citizen."

2024 Miller
Rolla Competition Engines
ProCharger
Hoosier Tires
Abruzzi
September 09, 2019, 09:54 AM
Bucky
Love to compare notes or just take a look. PM sent.


Foxtrot Juliet Bravo
September 09, 2019, 11:41 AM
TOP38
quote:
Originally posted by Bucky:
Anybody collecting shock data on their soft tail cars?
I used to, but tire shake killed my sensor. So time to invest in a new sensor.
With my last setup, I seemed to control the car dead hooked best if the initial movement was fairly fast to extend, and then gradual extension for another second and tapering off to just staying there except for bumps. The little bit of data with my new setup had a good bit of recovery (compression) after the initial extension. But I am also running only 4.5 psi to keep these Hoosiers from shaking. I'm maxing out my extension dampening as well as compression and lowering my two step to try to improve this. But this is a new ball game for me trying to avoid shake. I know the tire is a problem and I am replacing those before next season.(revalving shocks as well) I may be chasing after an impossible solution. But sure would like to see what others have for shock travel on faster soft tails.


What are you trying to do? What's your shock setup, mono or dual? If it's a mono shock deal you need to know the ratio of the shock movement vs the rear end movement in order to have the shock valved correctly.

As for your shock graphs, depending on your power level, most want a controlled extension at the hit, in the 3/8 to 1/2 range and not see any or minimal up/down movement after the extension. Both 4 link setup and shock dampening will control how much totalextension at the hit you will see.
September 10, 2019, 09:26 PM
Bucky
Bracket race. Go faster. I 60’ slower than I would like. 1.08 for 7.20
Mono 1:1 revalved Afco for additional dampening. I think I have been too aggressive at the hit.


Foxtrot Juliet Bravo