Page 1 of 4 123 ... LastLast
Results 1 to 20 of 71
  1. #1
    Join Date
    Aug 2007
    Posts
    677

    Default Chasing an Issue on the LR/RF

    Looking for advice....knowledge...help

    Bought a new car this spring & won several races straight out of the box. Anytime we were loading the car in the hauler or in the pits and he turned the car to the left it would instantly lift up the left rear and smash the RF nose to the ground. The car sat up really high in the RF and squatted in the LR. The car had a 3 spring LR stack with no lock out nut that came out to be roughly 40lbs.

    Got in a wreck one night and bent the shaft on the LR shock(Bilstein). Sent the shock back to the builder and got the shaft replaced & sent back. From then on the car will not get up on the bars. Will not pick up at all when moving in the pits and more importantly on the track unless it in hammer down traction. Now the car sits higher in the LR and lower on the RF

    We assumed we had something else bent. Changed out complete RF suspension, checked birdcages, checked 4 links bars, etc.....found nothing else bent or binding.

    Not exact numbers but our smash numbers are:
    RF 700 @ 19" 2050 @ 14.25" 200 lb single spring
    LF 600 @ 17 " 350 single spring
    RR 350 @ 20" 250 single spring
    LR 420 @ 20" & 165 @ 24"(dropped out) * triple stack at roughly 40lbs WITH lockout nut

    Will not climb the bars. Bar angles are the same. We have tried the triple stack without the lockout nut, added gas 150psi to LR shock, we have changed RF shocks & lowered compression & load down to 675 @ 18".

    I can walk up to the RF nose and barely put pressure and it goes to the ground. I can go to the rear bumper and with one hand lift the LR to near full travel but on its own it will not lift. I can jump on the rear bumper and the car will not go down on the left rear.

    One night out of desperation, I grabbed a older spare Integra LR shock with a 125 spring for our other car and stuck it on. Car lifted LR, wrinkled the tire and slammed the RF nose down.

    Two different builders have looked at the LR shock(Bilstein) now and both say it looks fine.

    What are we missing?

  2. #2
    Join Date
    Jul 2009
    Posts
    1,268

    Default

    1st thing comes to mind is a bind somewhere, 2nd is did you reverse engineer it??? are you sure those where the correct numbers (not trying to be a smart ass here) and if you put a different shock on her and she worked (car acted fine) i think you have your answer

  3. #3
    Join Date
    May 2007
    Posts
    2,840

    Default

    I would take the triple stack and put in on the Integra, if it works you have the answer.

    Just say no...

  4. #4
    Join Date
    Aug 2007
    Posts
    677

    Default

    GRT74- We initially thought bind somewhere, so we replaced all a-arms, spindles, and ball joints. Replaced 4 link bars, and checked out birdcages on both sides. Took 5th coil shock setup off and checked it.

    The load numbers are correct for us & this car. We have even played with another set of load numbers closer to standard and nothing.

    KROM- We dont have enough threads on the Integra to do the same exact triple stack that we have setup with the bilstein. We did try a simple stack last night late with the integra and it was better but we dont have the correct springs currently to get it to what we need.

  5. #5
    Join Date
    Oct 2008
    Posts
    680

    Default

    Just a note about the post. You first say that you had no lockout nut on the LR, but then in your smash numbers you say you have a lockout nut. Typo? Could that change be the issue?

  6. #6
    Join Date
    Aug 2007
    Posts
    677

    Default

    Sorry I should have clarified.

    Originally we had the triple stack with no lock nut....shock got bent & we put it back with the lock nut at our smash number (24" @165-200) and it wouldn't hike. Shock builder #1 and shock builder #2 both said the driver would like it better with lock not. So they added the nut with the triple stack (24" @ 165) and again no lift.

  7. #7
    Join Date
    May 2007
    Location
    Kansas
    Posts
    1,565

    Default

    Quote Originally Posted by missile07 View Post
    Sorry I should have clarified.

    Originally we had the triple stack with no lock nut....shock got bent & we put it back with the lock nut at our smash number (24" @165-200) and it wouldn't hike. Shock builder #1 and shock builder #2 both said the driver would like it better with lock not. So they added the nut with the triple stack (24" @ 165) and again no lift.
    Can you clarify where the lock nut is now? under the bottom floater plate or above one of them?

    And, not 100% clear if you tried without lock nut after wreck (so it's been tried with and without lock nut after wreck and still no hike?)
    Last edited by billetbirdcage; 01-29-2021 at 10:30 AM.

  8. #8
    Join Date
    Aug 2007
    Posts
    677

    Default

    Lock not is under the floater plate near the bottom of the threads. Should only affect extended load & was setup and put on by the shock builder #2.

    Yes it has been tried with and without the lock nut and no hike either way.

  9. #9

    Default

    Is there a LR front shock on it?

  10. #10
    Join Date
    Aug 2007
    Posts
    677

    Default

    No front shock

  11. #11
    Join Date
    Oct 2017
    Posts
    1,123

    Default

    Sounds like you had somthing you shouldn't have and they fixed it for you. Seriously though you say your dealing with two shock builders are either one of them the original builder ?

  12. #12
    Join Date
    May 2007
    Location
    Batavia, OH
    Posts
    11,524

    Default

    Quote Originally Posted by missile07 View Post
    Looking for advice....knowledge...help

    Bought a new car this spring & won several races straight out of the box. Anytime we were loading the car in the hauler or in the pits and he turned the car to the left it would instantly lift up the left rear and smash the RF nose to the ground. The car sat up really high in the RF and squatted in the LR. The car had a 3 spring LR stack with no lock out nut that came out to be roughly 40lbs.

    Got in a wreck one night and bent the shaft on the LR shock(Bilstein). Sent the shock back to the builder and got the shaft replaced & sent back. From then on the car will not get up on the bars. Will not pick up at all when moving in the pits and more importantly on the track unless it in hammer down traction. Now the car sits higher in the LR and lower on the RF

    We assumed we had something else bent. Changed out complete RF suspension, checked birdcages, checked 4 links bars, etc.....found nothing else bent or binding.

    Not exact numbers but our smash numbers are:
    RF 700 @ 19" 2050 @ 14.25" 200 lb single spring
    LF 600 @ 17 " 350 single spring
    RR 350 @ 20" 250 single spring
    LR 420 @ 20" & 165 @ 24"(dropped out) * triple stack at roughly 40lbs WITH lockout nut

    Will not climb the bars. Bar angles are the same. We have tried the triple stack without the lockout nut, added gas 150psi to LR shock, we have changed RF shocks & lowered compression & load down to 675 @ 18".

    I can walk up to the RF nose and barely put pressure and it goes to the ground. I can go to the rear bumper and with one hand lift the LR to near full travel but on its own it will not lift. I can jump on the rear bumper and the car will not go down on the left rear.

    One night out of desperation, I grabbed a older spare Integra LR shock with a 125 spring for our other car and stuck it on. Car lifted LR, wrinkled the tire and slammed the RF nose down.

    Two different builders have looked at the LR shock(Bilstein) now and both say it looks fine.

    What are we missing?
    If your car sits different at static ride, the loads are different. Shock mount change or way more rod pressure in a shock could explain it.
    Droop isn't the problem.

    Arizona Speedway - 2
    Alltech -1
    East Bay - 6
    Florence -1
    Atomic -1
    Tazewell -1

  13. #13
    Join Date
    Aug 2007
    Posts
    677

    Default

    Yes we are dealing with the original builder of the shock. The original builder replaced the bent shaft and said everything else looked fine. Swears he did not change anything other than the shaft. We tried it and it will not hike in the LR. Took it a to a local shock guy to look at and he talked with our original shock guy and says it looks fine to him as well. Still nothing.

    When I say the car sits higher in the LR and lower in the RF we thought maybe it was an optical illusion because we just put a new body on it but its not. The car will not settle in the LR. We left it sitting over night Friday night at ride height and come back Saturday morning and it had dropped from a spoiler height of 41" to 38.5". Shock mounts have not moved.

    We are going to basically strip the car to the frame and make sure we haven't missed something. Just frustrating

  14. #14
    Join Date
    Aug 2007
    Posts
    738

    Default

    Tell us about the wreck that bent the shaft. Where on the car did it take the hit? Also, how did the car move when it was hit? I am guessing another corner took some of the brunt of the impact (even if it wasn't the direct hit) and is possibly the culprit.

  15. #15
    Join Date
    May 2007
    Location
    Batavia, OH
    Posts
    11,524

    Default

    Quote Originally Posted by missile07 View Post
    Yes we are dealing with the original builder of the shock. The original builder replaced the bent shaft and said everything else looked fine. Swears he did not change anything other than the shaft. We tried it and it will not hike in the LR. Took it a to a local shock guy to look at and he talked with our original shock guy and says it looks fine to him as well. Still nothing.

    When I say the car sits higher in the LR and lower in the RF we thought maybe it was an optical illusion because we just put a new body on it but its not. The car will not settle in the LR. We left it sitting over night Friday night at ride height and come back Saturday morning and it had dropped from a spoiler height of 41" to 38.5". Shock mounts have not moved.

    We are going to basically strip the car to the frame and make sure we haven't missed something. Just frustrating
    Birdcage bearings?
    Droop isn't the problem.

    Arizona Speedway - 2
    Alltech -1
    East Bay - 6
    Florence -1
    Atomic -1
    Tazewell -1

  16. #16

    Default

    Sounds like there is little to no compression bleed in the shock. I'd verify with the shock builder that the bleed size did not change at all.

    4-link rod ends - did you replace them? If the hit was in the rear a rod end (or two or more) may have stretched and is now binding under load.

    Measure rear end straightness? Wouldn't explain the Integra fixing the problem but if the rear end was bent badly..

  17. #17
    Join Date
    Aug 2007
    Posts
    677

    Default

    The wreck happened on a restart...leader brake checked we were second and the third place car ran up under him & picked his rearend up off the track. Finished the race with the bent shaft.

    We decided over the weekend that we will are going to take rearend out of the car and make absolutely sure there isn't a bent axle tube, etc.

    I should have more info in the morning.

  18. #18
    Join Date
    Aug 2007
    Posts
    738

    Default

    With the rearend out check all the heims, birdcages and the rr shock. Don't forget to check the lift arm heims as well. I hope you find the issue. These things can be very frustrating.

  19. #19
    Join Date
    Dec 2008
    Location
    thedirtysouth
    Posts
    3,484

    Default

    Quote Originally Posted by missile07 View Post
    The wreck happened on a restart...leader brake checked we were second and the third place car ran up under him & picked his rearend up off the track. Finished the race with the bent shaft.

    We decided over the weekend that we will are going to take rearend out of the car and make absolutely sure there isn't a bent axle tube, etc.

    I should have more info in the morning.
    so you finished the race with the bent shaft ? was it getting up on the bars after the wreck or did it start staying flat right after the wreck ?

  20. #20

    Default

    Iím assuming youíre using a chain as a Limiter.... might sound a lil crazy, but a local guy here fought a similar problem with not getting any hike at all at times.... his chain was catching the axle mount and binding up

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

All times are GMT -5. The time now is 06:08 AM.


Powered by vBulletin® Version 4.2.0
Copyright © 2021 vBulletin Solutions, Inc. All rights reserved.