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Discussing Understeer Problem in the 2005+ Forum. I have quite a few suspension mods and recently experienced a problem. I took a ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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August 21st, 2007, 03:48 PM
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#1 |
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Regular
Join Date: Jul 2006
Posts: 282
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Understeer Problem
I have quite a few suspension mods and recently experienced a problem. I took a turn pretty fast and the front started sliding while the wheel was turned (kind of like when you turn hard on ice/snow and the car does not turn as fast as it should). I believe this to be understeer and would like some experts to throw some ideas out on how to correct this. I have the D-Specs and they are set to 3 full turns down from the most stiff setting. The setting is the same at all four corners. Should the front be set less stiff than the back? Other thoughts?
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2006 GT 5 Speed Convertible Whipple HO SC (461 RWHP / 444 Torque) 4.10 Gears Pypes O/R H-Pipe Borla Stingers Cat Back Exhaust Various suspension goodies For more info, visit: http://www.themorgansite.com/Mustang/mustang_info.htm |
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August 21st, 2007, 05:46 PM
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#2 |
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MM Fanatic
06 GT & 98 GT
Join Date: Dec 2006
Location: Douglasville, GA
Posts: 3,319
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I would think a little softer in the front would allow for more weight transfer to the fron to push the tires down for more traction up there.
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 98 GT: Accufab, Steeda, BBk, Mac, FlowMaster, Moser, Ford Racing, American Racing, Nitto DR's, Eibach, SCT, FPS 06 GT: JLT, SCT, FRPP/Borla, Pypes, Steeda, BamaChips, BMR RadMustangs Store |
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August 21st, 2007, 05:50 PM
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#3 | |
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Shite Mod
2007 Mustang GT
282 rwhp/292 rwtq
Join Date: Jan 2007
Location: Beside a bubble. Wife calls it a 'clown tent'. Somewhere up north, eh.
Posts: 17,783
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Typically our cars do understeer. I'm sure there are suspension adjustments to make to reduce this, but our cars are heavier than previous generation Mustangs, and although they will pull better skidpad numbers and slalom times than the previous Mustangs, understeer is normal, depending on how hard you are pushing the car.
Check out road tests of our cars and you will see this. You have to be careful how much you start playing with weight transfer, because then your next issue will be oversteer, where the ass end swings out on you.
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 Dyno Pull/MBRP's - The pee Test My Mods
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August 21st, 2007, 08:54 PM
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#4 |
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Regular
Join Date: Jul 2006
Posts: 282
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Yeah, I've heard and now experienced the understear problem. Since it is a known problem, I have to believe people have done some things to mitigate it. Just curious.
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2006 GT 5 Speed Convertible Whipple HO SC (461 RWHP / 444 Torque) 4.10 Gears Pypes O/R H-Pipe Borla Stingers Cat Back Exhaust Various suspension goodies For more info, visit: http://www.themorgansite.com/Mustang/mustang_info.htm |
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August 21st, 2007, 09:03 PM
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#5 | |
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Shite Mod
2007 Mustang GT
282 rwhp/292 rwtq
Join Date: Jan 2007
Location: Beside a bubble. Wife calls it a 'clown tent'. Somewhere up north, eh.
Posts: 17,783
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Yeah I'm sure there are things you can do. When it comes to suspension work, though, I'm a complete noob at understanding the mechanics of adjusting & setting up a performance suspension.
I stumbled across this forum while looking for tips for you, not sure if it's any good, but check it out: Macgyvers
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Dyno Pull/MBRP's - The pee Test My Mods
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August 21st, 2007, 09:10 PM
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#6 |
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Regular
Join Date: Jul 2006
Posts: 282
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Thanks, Unzipped!
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2006 GT 5 Speed Convertible Whipple HO SC (461 RWHP / 444 Torque) 4.10 Gears Pypes O/R H-Pipe Borla Stingers Cat Back Exhaust Various suspension goodies For more info, visit: http://www.themorgansite.com/Mustang/mustang_info.htm |
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August 21st, 2007, 09:10 PM
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#7 | |
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Shite Mod
2007 Mustang GT
282 rwhp/292 rwtq
Join Date: Jan 2007
Location: Beside a bubble. Wife calls it a 'clown tent'. Somewhere up north, eh.
Posts: 17,783
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Anytime man
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Dyno Pull/MBRP's - The pee Test My Mods
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August 21st, 2007, 09:34 PM
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#8 | |
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Red ♥ Zippy
2006 Mustang GT
In the 13's
Join Date: Aug 2006
Location: I'm so badass I make medicine cry
Posts: 10,655
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swaybars will eliminate alot of the over/understeer and make the car more balanced.
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August 21st, 2007, 10:29 PM
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#9 | |
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Regular
Join Date: Jul 2006
Posts: 282
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2006 GT 5 Speed Convertible Whipple HO SC (461 RWHP / 444 Torque) 4.10 Gears Pypes O/R H-Pipe Borla Stingers Cat Back Exhaust Various suspension goodies For more info, visit: http://www.themorgansite.com/Mustang/mustang_info.htm |
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August 21st, 2007, 11:52 PM
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Red ♥ Zippy
2006 Mustang GT
In the 13's
Join Date: Aug 2006
Location: I'm so badass I make medicine cry
Posts: 10,655
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I don't think so.
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August 22nd, 2007, 06:10 AM
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#11 |
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Regular
2006 Mustang GT
Join Date: Dec 2006
Location: Middle of Nowhere Wyo
Posts: 60
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Here is a site I came across that looks like it might help...
http://www.rallylights.com/other/stuning.htm
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August 22nd, 2007, 09:39 AM
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#12 | |
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Regular
Join Date: Jul 2006
Posts: 282
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__________________
2006 GT 5 Speed Convertible Whipple HO SC (461 RWHP / 444 Torque) 4.10 Gears Pypes O/R H-Pipe Borla Stingers Cat Back Exhaust Various suspension goodies For more info, visit: http://www.themorgansite.com/Mustang/mustang_info.htm |
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August 23rd, 2007, 12:00 AM
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#13 |
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Regular
2007 Mustang GT
Join Date: May 2007
Location: Kansas
Posts: 142
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Have you put on strut tower braces, when I put mine on it made a world of difference in control, the car remains level in tight turns at speed or excellaration, the way it feels to me is that instead of diving or lunging as it did before; it feels like the car is pulling itself through the turn.
  I'm no expert but thats the way it worked for me, simple cheep mod. too.
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2007 Mustang GT , mod. #1. Airaid CAI. #2, Strange Deveopment, Ext. clearence strut tower brace,#3 Diablo Sport Predator. |
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August 23rd, 2007, 01:42 AM
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Red ♥ Zippy
2006 Mustang GT
In the 13's
Join Date: Aug 2006
Location: I'm so badass I make medicine cry
Posts: 10,655
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You should be able to get rid of alot of the understeer by tuning your shocks and struts.
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