New ADDCO sway bars. Oh, Yeah! | Page 5 | FerrariChat
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New ADDCO sway bars. Oh, Yeah!

Discussion in '308/328' started by AZDoug, May 2, 2013.

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  1. AZDoug

    AZDoug Formula 3

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    #101 AZDoug, Jul 17, 2013
    The third gen front bar showed up today, I will fit it this weekend and find out what needs to be done for usage with factory shocks . Probably just bend the flanges out some bit.


    To recap, the second gen bar, which I have on now, fits with QA1s, but it is tight, the third gen bar eliminates the tightness with QA1s and should have fit the stock shocks, but evidently didn't without further modification.



    Doug
     
  2. Todd308TR

    Todd308TR F1 World Champ

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    #102 Todd308TR, Jul 18, 2013
    So for those of us that have already received bars do we need to send them back?
     
  3. AZDoug

    AZDoug Formula 3

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    #103 AZDoug, Jul 18, 2013
    Your rear bar will fit fine, if you have aftermarket front shocks, the front bar will fit fine. If you have stock front shocks, the front bar probably won't fit.

    Doug
     
  4. Todd308TR

    Todd308TR F1 World Champ

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    #104 Todd308TR, Jul 18, 2013
    Yes I have stock shocks.
     
  5. lonnie77

    lonnie77 Karting

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    #105 lonnie77, Jul 21, 2013
    Yes I have stock shocks.
     
  6. Crowndog

    Crowndog F1 Veteran

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    #106 Crowndog, Jul 21, 2013
    I spoke with them upon receiving mine and asked permission to have Paul alter them to fit which he has but I have lost adjustment holes. They told us to go ahead and they would do whatever corrections needed to be done to make this right. So we are awaiting Doug's measurements to be sent to them since it was he who they sent the test bars too. They told me that was all they are waiting for.
     
  7. woody6

    woody6 Karting

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    #107 woody6, Jul 22, 2013
    Thanks Doug.

    I said I wouldn't start without both bars, but I went ahead and installed my rear bar last weekend (I don't have a front bar yet). The rear was an easy install and fit quite nicely. The relative size of the bar compared to the old one makes me believe the increase in roll stiffness will be substantial. All this has me chomping at the bit to get the new front bar. I really believe the improvement will be as some have claimed, night and day.

    --Woody
     
  8. DTMPower

    DTMPower Rookie

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    #108 DTMPower, Jul 22, 2013
    Doug, that steering wheel movement isn't a direct result of the anti-roll bar uprate, it is bump steer. The increase in instantaneous wheel rate, and therefore tyre vertical load peaks, is caused by the stiffer bar, thus making the bump steer more pronounced. Cure the bump steer and it will all go away.

    BTW we can supply anti-roll bars custom built for any Ferrari, our top of the range ones have adjustable blades to fine tune the cars balance.
     
  9. AZDoug

    AZDoug Formula 3

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    #109 AZDoug, Jul 25, 2013
    I doubt 3/8" variations in road height due to tar sealant applications on asphalt cracks will cause classic bump steer, plus, "curing" bump steer, is a matter of redesigning the geometry of the entire front end. That said, my inner tie rods are looser than they should be and could probably be replaced and the rack rebuilt.

    Longacre Racing Online -- Tech Article "Bump Steer "

    As to new bar fitting, I have been slammed with work that pays the bills and was unable to fit the new bar last weekend, it is on this weekends project list.

    Doug
     
  10. AZDoug

    AZDoug Formula 3

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    #110 AZDoug, Jul 27, 2013
    Well, the replacement front bar that ADDCO sent me is the EXACT same out side width as the bar it was supposed to replace, it is the original 40.87" wide bar, not even the 42" wide bar that was sent to Newman.

    I am sort of pissed about this, after taking my car apart again to find it is the same damn thing. I guess I should have measured it before i took the old bar off.

    Doug
     
  11. woody6

    woody6 Karting

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    #111 woody6, Jul 29, 2013
    Much appreciated, Doug. I was eagerly awaiting your trial fit, and perhaps equally disappointed. Some weeks back I installed the rear bar to check fit, and so I could contribute with pics or measurements if adjustments were needed. Fortunately it fit fine, but my car is out of service until Addco can get the front one right.

    --Woody
     
  12. AZDoug

    AZDoug Formula 3

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    #112 AZDoug, Jul 29, 2013
    I got out my oxy/acetylene torch and tweaked the bar they sent me, so it was about 42" wide, that gave me enough room to move the bar around to determine what would fit and what wouldn't, and i e-mailed that info to ADDCO yesterday.

    I also told them that they would have to send that trial bar to someone that has factory shocks for a final verification fit.

    Widening the bar to fit factory shocks (without question), puts the bar directly under the tie rod ends, but with a previous modification, it looks like the bar will clear the tie rod ends by about 1/4" at full wheel lock.

    Doug

    Doug
     
  13. Todd308TR

    Todd308TR F1 World Champ

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    #113 Todd308TR, Jul 29, 2013
    They can send it to me. My car is at Wade's shop and I'm in no hurry.
     
  14. AZDoug

    AZDoug Formula 3

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    #114 AZDoug, Jul 29, 2013

    Get in touch with Matt who started this project for that.

    Thanks,
    Doug
     
  15. Todd308TR

    Todd308TR F1 World Champ

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    #115 Todd308TR, Jul 30, 2013
    Can you put me in touch with him?
     
  16. AZDoug

    AZDoug Formula 3

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    #116 AZDoug, Jul 30, 2013
    He's replied several times in this thread, Matt in Ca, I think.

    Doug
     
  17. matt_in_ca

    matt_in_ca Karting

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    #117 matt_in_ca, Jul 30, 2013
    PMing you right now
     
  18. Crowndog

    Crowndog F1 Veteran

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    #118 Crowndog, Jul 31, 2013
    Update. I figured that approaching this from as many directions as possible might help get the situation for us a little better under control. In that all involved have done so with best of intentions things were not progressing fast enough for my project to get completed in time. So, I asked Paul to please speak with John at ADDCO. He spoke to him "at length" and new bars will be sent to Paul for final fit with stock shocks. I will keep you all posted as to the progress. Fingers crossed. Thanks again Matt and Doug for your efforts in getting this project underway in the first place. I might add that all who recieved the wrong front bars will get correct bars ultimately.
     
  19. st@ven

    st@ven F1 Rookie

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    #119 st@ven, Aug 9, 2013
    my friend from the US brought the set over last week. Due to a little lack of time i did the rear one only by now but i will try to make time to to the front one this weekend.

    The rear one sizing looks spot on!

    I will try to make some pictures and post them next week.

    btw I did recieve the front bar with 2 adjustment holes only ( I thought it was planned originally to have 3). As i do not have stock shocks anyway I do not expect any fitting issues at the front.
     
  20. Todd308TR

    Todd308TR F1 World Champ

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    #120 Todd308TR, Aug 9, 2013
    Great news, Wade called John and left messages to use my car, but I guess he found another one.
     
  21. AZDoug

    AZDoug Formula 3

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    #121 AZDoug, Aug 9, 2013
    If your front bar is 42+ inches wide (1067 MM), it should fit OK.

    If they sent you a 40.87" wide bar, it may not.

    Doug
     
  22. st@ven

    st@ven F1 Rookie

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    #122 st@ven, Aug 10, 2013
    oke tried to fit the front bar which in my case is 40.9. No way it will fit.

    I think basically it is caused by two problems:
    1: the outside to outside lenght of the bar is approx 3.5 inch to narrow. If the bar was 44.0 and even better 44.5 it would fit using two washers on each side.

    with this lenght it would fit BUT only when I would cut off the second adjustment hole. So to make them perfect we should also reduce the overal leg lenght a bit.

    So 2: the leg lenght must be reduced by 7/8 inch. (with this the two adjustment holes shift to the main bar by 7/8 inch)

    I will contact my friend in the US to give ADDCO a call and provide them with this info

    Just for all of you as info: I do not carry stock shocks but Alden Eagle ones
     
  23. AZDoug

    AZDoug Formula 3

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    #123 AZDoug, Aug 10, 2013
    A 44" wide bar will clear all shocks, but it also places the bar in possible interference with the tie rod ends.

    I "think", with the down leg bend that was put in after the first trial, it will clear the tie rod ends underneath, by about 1/4". That was the big problem with the first bar, the tie rods smacked the bar hard,and you couldn't go to full lock.

    Not sure why they sent you a narrow bar,a s they did me, for a third bar. It was supposed to be about 42.4" wide

    I took a torch and widened the flanges of the bar out to about 42.5", which allowed me to slide the bar side to side by another inch, and I came up with 44",and i THINK it will clear the tie rods, but no way to tell for sure until a true 44" wide bar is fitted.

    Simply widening the middle of the bar 3", guarantees tire and wheel interference on 8" wide rims. What gets complex, is you can only bend that 1" bar, so much, in a certain length of space, and getting those extra bends in, the areas closest to the heim mounts, can be problematic. Angling the flanges outboard about 30 degrees, would help solve that issue. Or if the bar was welded up from three pieces, it would also solve the too many bends in too little space, problem.

    Doug
     
  24. st@ven

    st@ven F1 Rookie

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    #124 st@ven, Aug 10, 2013
    I probably made the wrong impression, i do not want the long pièce 3 inch longer but i want just 3 inch more width on the mounting point.
    But anyway what is the current status with the feedback to ADDCO?
     
  25. AZDoug

    AZDoug Formula 3

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    #125 AZDoug, Aug 10, 2013
    Understood. I was just reinforcing that the easy solution, widening the middle, would restrict use to factory rims and tires.


    I have given the feedback, I listed above, to ADDCO about two weeks ago.

    Doug
     
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