Cool, how about the Performance Front (XT970)? What are major differences between XT970 and XT910? Are XT970 friendly on rotors?
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Aftermarket Racing Performance brake rotors - weight loss w/better heat dissipation at a steep price
- Thread starter dfwatt
- Start date
Cool, how about the Performance Front (XT970)? What are major differences between XT970 and XT910? Are XT970 friendly on rotors?
EVTuning
Former Vendor
XT910: Performance Street - Medium initial bite, medium to high friction and brake torque. Low dust and little to no squeaking.
Not for use on the track, as high temperatures will greatly accelerate pad wear. For track racing, use Motorsports Compounds.
XT960-970: Medium initial bite, high friction and brake torque.
Since these pads are formulated for track/high temperature use, using them on the street may result some unfavorable situations such as brake squeal, dirty wheels, less brake friction at cold temperatures, and excessive rotor wear. For street driving, we recommended that you use Performance Street Compounds.
Not for use on the track, as high temperatures will greatly accelerate pad wear. For track racing, use Motorsports Compounds.
XT960-970: Medium initial bite, high friction and brake torque.
Since these pads are formulated for track/high temperature use, using them on the street may result some unfavorable situations such as brake squeal, dirty wheels, less brake friction at cold temperatures, and excessive rotor wear. For street driving, we recommended that you use Performance Street Compounds.
SammichLover
Banned
So the P calipers aren't like the base calipers, which you can swap out pads w/o moving the calipers? In the base brakes you punch out two pins, and slide the pads right out the topside of the caliper. You do need to alternate pressing in the pistons though, if the pads you're putting in are thicker/newer than the ones you're pulling out.
EVTuning
Former Vendor
beastmode13
Member
It is worthwhile reading through the discussion on the GTR forum before you select an XT pad. I thought I needed XT960 for my planned 4~5 lapping day a year. After talking to Racing Brake directly and reading the GTR forum, I decided to go with XT910. Full disclosure, I have yet hit the track with XT910 yet.
Racing Brake xt970, xt960, xt910 - Brakes
Racing Brake xt970, xt960, xt910 - Brakes
MasterC17
Active Member
Technically they don't need to be removed but they hold the pads in place. I found it easier to just zip them off.
Will you be offering the xt960? Seems like a happy medium for someone who tracks once a month.
EVTuning
Former Vendor
It depends on the fitment it is referred to as 970 for the Model 3 applications. This wouldn’t be ideal for the street though. 910 would be for street driving. I would start out with 910 and see how your track day goes and see if your ability etc warrants needing the 970. 910 will be a significant improvement over stock to begin with.
Is a set of the XT910 per brake or for the complete front? Shop description doesn’t mention this.
beastmode13
Member
beastmode13
Member
Just in case you missed it. The class winning Tesla P3 at One Lap of America had stock calipers with Racing Brake 2-piece rotors, front and rear. XT970 pads in the front, OE pad in the rear. The P3 OE pad had to be shaved a few millimeter to for the RB 2-piece. I had encounter the same rear clearance issue last month during my install. Informed RB and @EVTuning , RB decided to make a new P3 specific rear 2-piece rotor with new rotor ring casting to resolve the clearance issue.
Tesla Model 3, S become first EVs to complete One Lap of America rally event
Tesla Model 3, S become first EVs to complete One Lap of America rally event
Thanks for posting that beast mode. I assume that you're talking about the rotor ring contacting the metal backing of the brake pad at the rear? Did you just take a grinding wheel to remove a couple of millimeters? Do you have a picture if so?
beastmode13
Member
Just to be clear. I decided to wait for the updated P3 specific rear rotor from RB (eta July) without clearance issue. One Lap guys can't wait, so they modified OE P3 pads to work with the RB non-P3 2-piece rotor. Attached is a photo of OE P3 caliper/pad on non-P3 RB 2-piece, with only upper caliper mounting bolt inserted. IMHO the rear OE pad is undersized as is so I would not want to remove any material from it.
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jyalpert
Member
Does anybody make a brake duct kit for this car? Usually that's a much better solution for cooling the brakes. My understanding is that 2pc rotors are primarily for unsprung weight savings. I guess there might be a slight advantage in heat dissipation, but not very much.
beastmode13
Member
Just to be clear, that's not even close! Since this picture represents the non-compatibility of the RB rear rotor for the non-P cars (part # 2598) with the P caliper (which shouldn't fit in any case), what about RB part #2623?
MasterC17
Active Member
That appears to be the correct part but I don't think they actually exist right now. Kind of like the rear pads I ordered over a month ago.
beastmode13
Member
July is the ETA for the P3 rear rotor - RB #2623.
June is the ETA for P3 rear XT910 pads.
@EVTuning could confirm those dates.
They told me June but I guess I'm a little earlier in the queue. In any case it's troubling that they sent out the wrong rotor, the rotor for the non Performance brake, and it's not clear whether they thought that would fit or what exactly they were thinking. Racing brake has to their credit taken full responsibility and has issued an RMA to me for the the return. Still, the whole episode is a bit troubling. No way you could mix up the part numbers or the applications.
beastmode13
Member
RB completed the design for #2623 on 4/24, and then it is ten weeks from that point if everything goes well. A brand new casting is required for the rotor ring. End of June, beginning of July give and take a few holidays here and there.
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