Hello guys,
Just bought the ApRacing Pro 5000+ kit from a guy (TEFF, he's also a member here) and would like your opinion on the following problem. The caliper carriers had to be thinned in order to clear the swivel/hub on the lower side. Here's what Ap Racing said :
"CP5060-1001NP was competition kit originally devised for the VW Scirroco that is based on the Mk5 Golf Gti / TDi PQ5 platform
We haven’t detailed a kit for the Mk6 Golf R20…………..
This model would appear to uses a different lower arm from the Mk5. From the photo The R20 uses an aluminium lower control arm that’s possibly wider than the Mk5 steel type; hence the Scirocco bracket fouls on full lock and droop by the looks of it. And It looks like the R20 knuckle & lower arm are from the current Audi S3 model (see 20091021.jpg).
To overcome this foul condition the customer has cut away the bracket to provide clearance. We can’t really condone this mod because it has not had FEA applied to it, although on a race application it would most likely be OK if the wall thickness between the cut out and the mounting lug hole is +10mm. With this caliper mounted as leading the brake torque is acting downwards on the bracket in the i.e. loads are being applied in the opposite direction to the modification.
AP Racing would handle this foul issue by rotating the bracket upwards away from the lower arm i.e. the calipers would be approx 10°/15° above the centreline. This would require a new designed of handed brackets with the cross sectional strength maintained.
Question: - Apart from that anomaly does this kit mount correctly to this model? If the answer is yes then I can ask design to consider a new bracket to alleviate the problem…………"
This was my answer to them :
Hello,
I'm the new owner of this brake kit (bought it from the guy with Golf 6 R20). The kit will be installed on a Golf 5 GTI wich sees 2-3 hard track days/year. My GTI also has Audi TT lower arms (give additional negative camber) and Audi S3 swivels (hubs) wich lower the weight/corner. Having these mods I might also encounter the same problems with the caliper brackets. I will install them today with the brackets that have been thinned by the other guy in order to avoid touching the swivel on the lower side. I'm attaching you 4 pics with the 2 brackets. One of them has 10-12mm from the outer edge to the mounting lug hole so I wouldn't worry about this one. However, the other one has only 4-5mm wich is too little. I will also make you some pics with them installed on the car in order to help you design new brackets that will clear the swivel/hub.
Another question would be if these calipers require any kind of maintenance knowing they will also be used on street (the car may occasionally see snow or dirt) and the pistons don't have any protective rubber seals like road brakes. Thanks in advance for your help !
What do you think about this ?
Uploaded with ImageShack.us
Uploaded with ImageShack.us
Uploaded with ImageShack.us
Just bought the ApRacing Pro 5000+ kit from a guy (TEFF, he's also a member here) and would like your opinion on the following problem. The caliper carriers had to be thinned in order to clear the swivel/hub on the lower side. Here's what Ap Racing said :
"CP5060-1001NP was competition kit originally devised for the VW Scirroco that is based on the Mk5 Golf Gti / TDi PQ5 platform
We haven’t detailed a kit for the Mk6 Golf R20…………..
This model would appear to uses a different lower arm from the Mk5. From the photo The R20 uses an aluminium lower control arm that’s possibly wider than the Mk5 steel type; hence the Scirocco bracket fouls on full lock and droop by the looks of it. And It looks like the R20 knuckle & lower arm are from the current Audi S3 model (see 20091021.jpg).
To overcome this foul condition the customer has cut away the bracket to provide clearance. We can’t really condone this mod because it has not had FEA applied to it, although on a race application it would most likely be OK if the wall thickness between the cut out and the mounting lug hole is +10mm. With this caliper mounted as leading the brake torque is acting downwards on the bracket in the i.e. loads are being applied in the opposite direction to the modification.
AP Racing would handle this foul issue by rotating the bracket upwards away from the lower arm i.e. the calipers would be approx 10°/15° above the centreline. This would require a new designed of handed brackets with the cross sectional strength maintained.
Question: - Apart from that anomaly does this kit mount correctly to this model? If the answer is yes then I can ask design to consider a new bracket to alleviate the problem…………"
This was my answer to them :
Hello,
I'm the new owner of this brake kit (bought it from the guy with Golf 6 R20). The kit will be installed on a Golf 5 GTI wich sees 2-3 hard track days/year. My GTI also has Audi TT lower arms (give additional negative camber) and Audi S3 swivels (hubs) wich lower the weight/corner. Having these mods I might also encounter the same problems with the caliper brackets. I will install them today with the brackets that have been thinned by the other guy in order to avoid touching the swivel on the lower side. I'm attaching you 4 pics with the 2 brackets. One of them has 10-12mm from the outer edge to the mounting lug hole so I wouldn't worry about this one. However, the other one has only 4-5mm wich is too little. I will also make you some pics with them installed on the car in order to help you design new brackets that will clear the swivel/hub.
Another question would be if these calipers require any kind of maintenance knowing they will also be used on street (the car may occasionally see snow or dirt) and the pistons don't have any protective rubber seals like road brakes. Thanks in advance for your help !
What do you think about this ?
Uploaded with ImageShack.us
Uploaded with ImageShack.us
Uploaded with ImageShack.us
