CAn I shave this off the brake caliper completly?
02-08-08, 09:47 PM
#6
I posted this in a recent thread:
Disclaimer: Do this at your own risk.
You can do it, but don't grind it FLAT... Big mistake. There is a recessed pocket there that will manifest itself as a HOLE measuring about 1.5mm x 1.5mm (if grinded flat). And yes, I've done it.
I found that you *can* remove some material from the "bump", but I only took off as much as I needed. I probably shaved about 1.2mm straight off the top, and then cut across the top of it at an angle--making sure to leave plenty of "meat" around the spot where I knew the hole was.
Basically the wheels that I mounted were *barely* hitting it as they spun, so I followed the angle of the wheel-spokes with my dremel-tool and took off what was necessary for them to spin freely.
For a test, I *painted* the top of the "ground off" bump to see if the wheels were rubbing/hitting the bump during normal/hard-driving. After several weeks, and less than a 1mm of clearance between the backside of the wheel and the "bump", the paint never was rubbed or worn off. The point is, I didn't need to grind it down like crazy to get that last bit of clearance--my wheel never rubbed.
Disclaimer: Do this at your own risk.
You can do it, but don't grind it FLAT... Big mistake. There is a recessed pocket there that will manifest itself as a HOLE measuring about 1.5mm x 1.5mm (if grinded flat). And yes, I've done it.
I found that you *can* remove some material from the "bump", but I only took off as much as I needed. I probably shaved about 1.2mm straight off the top, and then cut across the top of it at an angle--making sure to leave plenty of "meat" around the spot where I knew the hole was.
Basically the wheels that I mounted were *barely* hitting it as they spun, so I followed the angle of the wheel-spokes with my dremel-tool and took off what was necessary for them to spin freely.
For a test, I *painted* the top of the "ground off" bump to see if the wheels were rubbing/hitting the bump during normal/hard-driving. After several weeks, and less than a 1mm of clearance between the backside of the wheel and the "bump", the paint never was rubbed or worn off. The point is, I didn't need to grind it down like crazy to get that last bit of clearance--my wheel never rubbed.
02-09-08, 01:10 AM
#7
I posted this in a recent thread:
Disclaimer: Do this at your own risk.
You can do it, but don't grind it FLAT... Big mistake. There is a recessed pocket there that will manifest itself as a HOLE measuring about 1.5mm x 1.5mm (if grinded flat). And yes, I've done it.
I found that you *can* remove some material from the "bump", but I only took off as much as I needed. I probably shaved about 1.2mm straight off the top, and then cut across the top of it at an angle--making sure to leave plenty of "meat" around the spot where I knew the hole was.
Basically the wheels that I mounted were *barely* hitting it as they spun, so I followed the angle of the wheel-spokes with my dremel-tool and took off what was necessary for them to spin freely.
For a test, I *painted* the top of the "ground off" bump to see if the wheels were rubbing/hitting the bump during normal/hard-driving. After several weeks, and less than a 1mm of clearance between the backside of the wheel and the "bump", the paint never was rubbed or worn off. The point is, I didn't need to grind it down like crazy to get that last bit of clearance--my wheel never rubbed.
Disclaimer: Do this at your own risk.
You can do it, but don't grind it FLAT... Big mistake. There is a recessed pocket there that will manifest itself as a HOLE measuring about 1.5mm x 1.5mm (if grinded flat). And yes, I've done it.
I found that you *can* remove some material from the "bump", but I only took off as much as I needed. I probably shaved about 1.2mm straight off the top, and then cut across the top of it at an angle--making sure to leave plenty of "meat" around the spot where I knew the hole was.
Basically the wheels that I mounted were *barely* hitting it as they spun, so I followed the angle of the wheel-spokes with my dremel-tool and took off what was necessary for them to spin freely.
For a test, I *painted* the top of the "ground off" bump to see if the wheels were rubbing/hitting the bump during normal/hard-driving. After several weeks, and less than a 1mm of clearance between the backside of the wheel and the "bump", the paint never was rubbed or worn off. The point is, I didn't need to grind it down like crazy to get that last bit of clearance--my wheel never rubbed.
I'm sure I could remove the 1/4" spacer and just drive the car a bit. My rims are soft aluminum and the calipers would clear themselves a channel in the rims. I'm just a bit afraid it will weaken the rim.
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02-09-08, 01:36 AM
#8
Lives on the Forum
Some S5's got single piston calipers in front using 5 lug hubs and the same rotors. If space is a concern then swap those in. You can probably find someone to trade with and you can end up with money in your pocket.
02-09-08, 12:28 PM
#10
Lives on the Forum
He wants to put skinnies on it, so that'll severely handicap the stopping ability, the brakes aren't going to be the weak link there. The 4 piston calipers won't provide any more stopping power, the rotors are the same after all, the pads are about the same size, probably about equivalent piston area. I've used single piston calipers at several track days with no problems, they provide plenty of stopping power. The advantage of the 4 piston calipers is in the ease of pad changes and a stiffer caliper.
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Frisky Arab
2nd Generation Specific (1986-1992)
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