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07-03-2014, 01:25 AM
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CC Member
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Join Date: Mar 2007
Location: Olympia,
Wa
Cobra Make, Engine: B&B 5.0 roller W/carb & T-5 WC
Posts: 66
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Not Ranked
Bump Steer
Can someone please help me clarify which bump steer kit to use. I am in the understanding this is a Pinto-Mustang II rack and spindle set up. I ordered the Steeda kit for Fox body Mustang and discovered they didn't fit (wrong threads). Also I would like to verify when upgrading the rack and front brakes do I use Pinto-Mustang II rack and front brake application for parts?
Thanks for any help!!
__________________
"Oversteer is when the passengers are scared. Understeer is when the driver is scared."
Last edited by MacGyver; 07-03-2014 at 01:55 AM..
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07-03-2014, 06:56 AM
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CC Member
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Join Date: May 2009
Location: American Fork,
Ut
Cobra Make, Engine: 66 Cobra
Posts: 930
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Not Ranked
I must ask why is a bump steer kit needed for your car? Usually B&Bs don't' need bump steer kits. Could there be something else wrong?
Added: Can you tell us what year your car is?
__________________
Wayne
"Everything is alive. If you get angry at a vehicle or the trans, it won't fix until you apologize and say you are sorry." "The vehicle always knows what it is doing and what the cause of it's bad feeling is. If you ask it humbly what the problem is, it will tell you. Then you and it will both be happy."
Gil Younger
Last edited by Wbulk; 07-03-2014 at 09:19 AM..
Reason: Added
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07-03-2014, 08:38 AM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,445
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Not Ranked
Have you actually measured your bump steer? If not, then that should be your first step.
If you don't have any and you add a kit, you'll create some.
If you do have some bump steer, installing the kit with the wrong spacers will make it worse.
__________________
.boB "Iron Man"
NASA Rocky Mountain TTU #42
www.RacingtheExocet.com
BDR #1642 - Supercharged Coyote, 6 speed Auto
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07-03-2014, 11:35 AM
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CC Member
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Join Date: Feb 2006
Location: Alexander,
AR
Cobra Make, Engine: B&B 427 Stroked Windsor TKO 600 w/3.50 posi 9"
Posts: 789
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Not Ranked
All the parts I have purchased for mine are early mustang II parts.
Mine does not have a bump steer problem, I'm wondering why yours may.
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07-07-2014, 11:34 AM
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CC Member
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Join Date: Mar 2007
Location: Olympia,
Wa
Cobra Make, Engine: B&B 5.0 roller W/carb & T-5 WC
Posts: 66
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Not Ranked
Thanks for the quick replies, I have been away for the holiday.
I have a definitive chatter in the steering wheel over bumps that worsens with speed. The car sits very low, the lower control arm is angled upwards and I do not have a rag joint. All steering components are tight. I admit I don't know how to measure the bump steer but I have an appointment with a very good front end shop and look forward to their info. I have been told the rack end should be parallel to the lower control arm, looking at mine they are as much as 3/4 an inch at the outside. Any help with what they should be would be greatly appreciated.
Another question regards sway bars, my car has none. The rear lower control arms have a 2 bolt vertical bracket that as I understand is for sway bar mounts. My main question is what application works for the front and do I really need them?
Thanks again for any help.
__________________
"Oversteer is when the passengers are scared. Understeer is when the driver is scared."
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07-07-2014, 11:36 AM
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CC Member
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Join Date: Mar 2007
Location: Olympia,
Wa
Cobra Make, Engine: B&B 5.0 roller W/carb & T-5 WC
Posts: 66
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Not Ranked
Thanks for the quick replies, I have been away for the holiday.
I have a definitive chatter in the steering wheel over bumps that worsens with speed. The car sits very low, the lower control arm is angled upwards and I do not have a rag joint. All steering components are tight. I admit I don't know how to measure the bump steer but I have an appointment with a very good front end shop and look forward to their info. I have been told the rack end should be parallel to the lower control arm, looking at mine they are as much as 3/4 an inch variable at the outside. Any help with what they should be would be greatly appreciated.
Another question regards sway bars, my car has none. The rear lower control arms have a 2 bolt vertical bracket that as I understand is for sway bar mounts. My main question is what application works for the front and do I really need them?
Thanks again for any help.
__________________
"Oversteer is when the passengers are scared. Understeer is when the driver is scared."
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07-07-2014, 01:07 PM
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CC Member
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Join Date: May 2009
Location: American Fork,
Ut
Cobra Make, Engine: 66 Cobra
Posts: 930
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Not Ranked
I must ask again what year is your car. There were B&B cars built from May 2009 through Jan. 2010 that had defective front suspensions. The lower control arms were located in the wrong place. They were to low at the frame mounting points. This would cause bump steer. I had the problem with mine and fixed it. I got the correct measurements from the previous partner, Barry McGill. I also created a how to fix it MS word document with pictures. This may or may not be your problem.
Before the fix. Notice the lower inside mounting point is at the bottom corner.
This is after the fix with the lower A arms moved up to the correct location on the frame. The upper shock mounting points were also in the wrong place.
__________________
Wayne
"Everything is alive. If you get angry at a vehicle or the trans, it won't fix until you apologize and say you are sorry." "The vehicle always knows what it is doing and what the cause of it's bad feeling is. If you ask it humbly what the problem is, it will tell you. Then you and it will both be happy."
Gil Younger
Last edited by Wbulk; 07-12-2014 at 10:28 PM..
Reason: spelling
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07-07-2014, 01:26 PM
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CC Member
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Join Date: Mar 2007
Location: Olympia,
Wa
Cobra Make, Engine: B&B 5.0 roller W/carb & T-5 WC
Posts: 66
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Not Ranked
Thanks for the reply, mine is a 2002 model and I believe more resembles the second picture. That being said I will have to go check and confirm, I am away from the car now.
__________________
"Oversteer is when the passengers are scared. Understeer is when the driver is scared."
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07-07-2014, 05:38 PM
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CC Member
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Join Date: Jan 2002
Location: Northridge,
CA
Cobra Make, Engine: Arntz Cobra
Posts: 1,838
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Not Ranked
Your question about sway bars has not been answered. Basically, if you are happy with the way your car goes around curves then you don't need them. You will have a more comfortable ride without them. However, if you drive fast enough to get the tires to slide, you will find out that your car leans a lot and that the front end probably slides first giving you "understeer". To set the car up for racing, you will need front and rear swaybars so that you can get the slide to be balanced or "neutral". It took several different attempts to get the right size bars on my car to achieve that even breakaway. I have ended up with a 1" front bar and a 3/4" rear bar. This can be "fine tuned" with tire pressures. An autocross (or Solo 2) course is the best place to test this.
RS
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"It doesn't have anything on it that doesn't make it go faster."
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