larrynipon

<center><img src="http://pictureposter.audiworld.com/35386/audi_side.jpg"></center><p>I'm running the car at Limerock june 5/6. Should I just burn the pads I have or put better pads on before I get there. If better pads, what are the suggestins.

Fairfax 4.0T

I have the same question for a 2.7T I'm running at the Potamac Quattro Club event at VIR in a week.

pablo1

a few laps at the end of the main straightaway. I am going to use DOT 5 fluid (fluid with a higher boiling point) and different pads this time. I'm going to call a store owned by a QC member for advice and will let you know what they say. I hear Porterfield R4's are good. I hope we both get in to Lime Rock as this event is usually oversubscribed. LOL to everyone running in the club events.

StealthMobile

Some have posted that they did not damage the rotors when using track pads. Others have said that they ran at the track completely stock and suffered no ill effects. My experience, however, is that unless you have an iron will you will not be able to resist full-throttle acceleration and threshold braking. 1.5 - 2 laps are all it takes to ruin the stock setup when pushed hard.

If you CAN resist the temptation, and put yourself in the mindset of simply working on getting the correct line through the corners, then you just might make it through the event on the stock pads. But you have to go easy on the throttle, and not brake late into the corners. Everyone will pass you but you won't do much, if any, damage.

In terms of the "damage" to expect from hard driving: the stock pads will be lightly to severely chunked, and the rotors will be ruined. The rotor and pad damage will be caused by overheating, but the rotors will suffer the most. Most likely, the pads will leave uneven deposits on the rotor surface. These will cause you to feel a pulsation under braking. If temperatures get high enough the rotor itself will warp. If you are lucky and only suffer from uneven pad deposition, this may gradually wear away with normal street driving.

Track pads are recommended for a few reasons. Since they work at higher temps, they help to resist fade (until the fluid boils.) They are less likely to chunk, since they have a higher heat tolerance. They are also more resistant to uneven deposition and therefore leave actual warping as the only way to ruin the rotors. The downside is that the pads are an extra expense (actually, not much more expensive than dealer pricing on OEM pads) and the track pads must be bedded in. If the bedding procedure is skipped, there is a chance that the rotors can be ruined even with track pads.

For pad recommendations I suggest a search of the forum. Porterfields seem to be the most common recommendation if my memory is correct.

Ming 2.7T

You can use your stock pads, i did at Pahrump last year and no problem, then tried it again at Streets and the pads chunked, grooving the rotors. I believe April suggests Porterfield pads. Also change the brake fluid to maybe Motuls 600. Stealth covers it real well in his thread.

JP4

StealthMobile's comments are RIGHT-ON the money. 3 schools in my A6 4.2 confirmed this for me.