Is this installed correctly? This is the passenger side of the car. The stoptech rotor from xlr8 is labeled with an "R". this is my 1st time with drilled/slotted rotors and I dont know if its installed correctly. Please help.

 

I hate to tell you this but it looks like the vanes are going in the wrong direction.

 

why you using slotted rotors? you go on the track? honestly slotted rotors just reduce rigidity and surface area and reduce stopping distance. unless you abuse your brakes ie. track use i don't see a point for slotted rotors.

 

Its all eye candy. This is just my 1 day a week car which doesn't get abused or driven hard all the time. I like the looks of them and had some extra cash so I bought them.

But thanks for your

 

I may have answered my own question. After researching, I found this on stoptech's FAQs:

"The slots on StopTech AeroRotors are cut in the OPPOSITE direction of the vanes. The pattern on a drilled AeroRotor also has the same appearance. The direction of the slots or hole pattern should not be used to determine what side of the vehicle to place a rotor. Different manufacturers may have different strategies for slot and hole patterns.

The only correct way to determine what side a directional rotor goes on is the internal vane direction."

http://www.stoptech.com/tech_info/faqs.shtml

 

i see.... i apologies.... and it doesnt reduce stopping distance....the size of rotor and the kind of pad is what mattters...this jus helps it keep it cool... pun intended....

 

slotted rotors can also eat up your pads, as in my case

 

This. They do eat your pads up faster than normal rotors.

 

makers have differing opinions on the slot direction
If there is an `R` stamped on the hub it goes on passenger side of car
L would be driver side

only a few makers have curved inner cooling vanes, so you have to ck the rotor for a stamp or -----> arrow to forward to be certain--
as should be obvious after the answers you got here--~it looks backwards~ ptttt

the purpose of side slots is to allow expanding pad gasses an escape path--enough gas pressure can literally push the pads off the rotors, with your foot on the pedal
This would be under extreme use,,,mostly repeated hard use but one good 80 to 20 panic stop will generate a LOT of heat,,braking is all about friction makes heat

so they are more than ~just bling~ for the street, `race driver wannabe`types

Its other purpose is to scrape a micro layer of material that may have gotten stuck on the pad,,and a tiny amount of actual pad so its smooth 100% contact rotor to pad.
This `shaving` only happens as the brakes are applied
many users are getting 40-50kmiles on the right pads and slotted rotors!!
maker matched is the best plan
I beat my et300s well beyond makers imagination/intended use, and still got 25kmiles from them! others here are reporting 40-50k on the same pads and the et500 series which is more aggressive braking oriented

 

No problem. I was just getting curious and wanted a couple 2nd opinions.
Thanks for your help though, if it was any other brand they would probably be on backwards. Stoptech just makes them this way I guess.

 

even 25-30kmiles pad life on RB is fine with me--for how well they stop overall,
and the wifes tendancies towards late panic stops~

IMO brakes are the most important part of the car!!!

I have seen how well trees stop them too!!, but the resulting parts compression....
money better spent on good brakes~

 

Make sure to follow the pad makers bedding instructions,,it may take several times and some miles to get fully mated together pads and rotors

 

ahhh I dont see any caliper grease on the tab ends- where the pads slide in the bracket or where the caliper fingers contact the pad
All that needs to be lightly lubed so the brakes work right
Flush your brake fluid too

some like to grease the axle hub where the rotor slides over- to prevent future sticking problems

 

you cant tell where the vanes are facing....the vanes are inside the two rotors... some are str8 some are curved ... if its str8 it doesnt matter...if its curved it should turn in the direction where it takes wind IN... it looks like a water wheel on the inside...

 

ummm are you taking about the pad ends? the two short sides?... where the clips are?...

 

yes- the tab ends of the pads,, where ALL the action of in and out for the pad occurs across the slider clips in the bracket

lightly apply synthethic caliper grease on the sliders/tabs, (not so much it spills out)
and where there is contact with the caliper piston or fingers to the back of the pads
See imprint on old pads for referance

 

makers each have own thinking on the external slot direction, shape, number etc.

certain performance rotors have the `internal curved vanes` Ones that actually bring cooling air into the center of the rotor and expel hot air out the end of the vanes
Direction is critical for that purpose
most rotors are straight vaned and fine for average street user--

this is another thing that only comes into play under repeated hard slowing-mountain fun-track day style use

 

not for me. I got about 50 k out of both sets of ebc greens on my spotted rotors with track days too. I have ebc reds on the same rotors. Slots are almost gone though.

 

Yes, the direction of the slots on the rotor looks correct. Looks the same as the slot direction as the Rotora ones.