Autocrossing my 5.0.
"Stock", as in F-Stock solo is not exactly "showroom stock". There are a few limited mods permitted, including all of the ones that Sam listed. There are some limits on exactly what you are allowed do to accomplish the most aggressive alignment possible - camber plates or slotting the bolt holes in the strut towers would not be permitted, but you could crowd all of the "slack" out between fasteners and their holes to the maximum extent physically possible. For parts that you have complete freedom to replace, there is no limit on the parts source or their price.
Sam - good to hear the power issue was made to go away.
Norm
Sam - good to hear the power issue was made to go away.
Norm
Last edited by Norm Peterson; Aug 30, 2010 at 09:07 AM.
Congrats!!! I was at an event this past Saturday, same FS class except I am fully stock, including the stock Pirelli P-zeros. Came in 1st in class against a couple of BMW M5s, so happy with the results. I found the Pirelli's a little greasy though.
Sam I readed this article from the truth about cars:
[I]"the Brembos are nice but they are still two sizes too small for a car of this performance potential"also mentioned: "on the optional Brembo front brakes. Here's the best way to think about them: Go look at a Porsche 911 GT3. Evaluate the size of the brakes on the car. Now come back and look at these optional Brembos. Then consider that the Mustang outweighs the GT3 by a few hundred pounds. These aren't the be-all and end-all of optional brake setups. True racing Mustangs use massive calipers front and rear. These brakes, which are identical to the GT500 stoppers and probably very simillar to the itemes found on the Camaro SS and Challenger SRT-8, aren't even close to what's required for heavy-duty track use.. The Brembos will take a genuily hard lap or two before requiring some rest.
For a 2011 GT Brembo that will be used for street and some track usage, Which improvements do you recommend?
[I]"the Brembos are nice but they are still two sizes too small for a car of this performance potential"also mentioned: "on the optional Brembo front brakes. Here's the best way to think about them: Go look at a Porsche 911 GT3. Evaluate the size of the brakes on the car. Now come back and look at these optional Brembos. Then consider that the Mustang outweighs the GT3 by a few hundred pounds. These aren't the be-all and end-all of optional brake setups. True racing Mustangs use massive calipers front and rear. These brakes, which are identical to the GT500 stoppers and probably very simillar to the itemes found on the Camaro SS and Challenger SRT-8, aren't even close to what's required for heavy-duty track use.. The Brembos will take a genuily hard lap or two before requiring some rest.
For a 2011 GT Brembo that will be used for street and some track usage, Which improvements do you recommend?
I run the GT500 Brembos on my 08 GT and with DOT 4 fluid, the proper track pads and front brake cooling have had no problems with fade on road courses with sessions up to and over 1/2 hour long. I run stock rotors and SS lines.
For the last season I've been running Nitto NT01 R-compounds and can pull up to 1 G under braking. At times the ABS kicks in and so that means the brakes are giving everything they can and either the tires or the electronics are the limiting factor.
There are other BBKs out there that provide better control and feel under braking but they are expensive to buy and maintain.
My car is has a supercharger rated at 445 HP so it has slightly more power than the 5.0.
For the last season I've been running Nitto NT01 R-compounds and can pull up to 1 G under braking. At times the ABS kicks in and so that means the brakes are giving everything they can and either the tires or the electronics are the limiting factor.
There are other BBKs out there that provide better control and feel under braking but they are expensive to buy and maintain.
My car is has a supercharger rated at 445 HP so it has slightly more power than the 5.0.
I run the GT500 Brembos on my 08 GT and with DOT 4 fluid, the proper track pads and front brake cooling have had no problems with fade on road courses with sessions up to and over 1/2 hour long. I run stock rotors and SS lines.
For the last season I've been running Nitto NT01 R-compounds and can pull up to 1 G under braking. At times the ABS kicks in and so that means the brakes are giving everything they can and either the tires or the electronics are the limiting factor.
There are other BBKs out there that provide better control and feel under braking but they are expensive to buy and maintain.
My car is has a supercharger rated at 445 HP so it has slightly more power than the 5.0.
For the last season I've been running Nitto NT01 R-compounds and can pull up to 1 G under braking. At times the ABS kicks in and so that means the brakes are giving everything they can and either the tires or the electronics are the limiting factor.
There are other BBKs out there that provide better control and feel under braking but they are expensive to buy and maintain.
My car is has a supercharger rated at 445 HP so it has slightly more power than the 5.0.
The pads are the issue... street pads are NOT really meant to be beat on a track all day long. Some cars deal with it better (lighter, or have a more rear biased weight distribution, or the OEM puts a more aggressive pad on stock).
The simple answer: Upgrade the brake pads for track work (fluid would also be very wise--lines aren't a bad idea but don't help with fade).
The simple answer: Upgrade the brake pads for track work (fluid would also be very wise--lines aren't a bad idea but don't help with fade).
The pads are the issue... street pads are NOT really meant to be beat on a track all day long. Some cars deal with it better (lighter, or have a more rear biased weight distribution, or the OEM puts a more aggressive pad on stock).
The simple answer: Upgrade the brake pads for track work (fluid would also be very wise--lines aren't a bad idea but don't help with fade).
The simple answer: Upgrade the brake pads for track work (fluid would also be very wise--lines aren't a bad idea but don't help with fade).
Best Regards,
JM
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