 How are AP Racing slotted rotors supposed to be installed?, instruction insert diagram doesn't match my rotors |
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| How are AP Racing slotted rotors supposed to be installed?, instruction insert diagram doesn't match my rotors |
 Apr 10 2009, 12:06 AM
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#1
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 R35 Member  Group: Members Posts: 2,078 Joined: 13-July 07 Member No.: 11,886  |
See attached pics.
I watched the video by Chris of Stillen talking about the slotted vs J-hook here. Chris mentions how the slotted rotors and the 48 vanes "allow more air to be pumped from the center out". Well, take a look at the attached pics. My rotors match the ones in the video but do not match the diagram included. The instructions match the concept of pumping air from the center out, but the slots on my rotors and in the video do not match the ones in the diagram. What do you guys think? This post has been edited by jmunjr: Apr 10 2009, 12:07 AM
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-------------------- 2009 Nissan GT-R, Premium Edition, Gunmetal/Black, Clear front markers, HKS USA mid-pipe, Stillen sway bars, AP Racing rotors, Carbotech XP12 brake pads, Stillen SS brake lines, Candy apple red calipers, Toyo R888 tires
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Apr 10 2009, 12:20 AM
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R33 Member Group: Members Posts: 517 Joined: 15-January 09 Member No.: 15,314 |
well i am pretty sure the vanes (inside the rotor) should be pointing "backwards" towards to back of the car, to facilitate air coming up via the centre hub area. The direction of the slots, does seem to be opposite of the diagram, however i am not sure that really matters?
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Apr 10 2009, 12:55 AM
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 SpecV Member Group: Members Posts: 3,469 Joined: 5-December 07 From: NorCal Member No.: 12,460 |
The grooves will be going the same direction as the internal vanes on the actual rotors, the vanes exiting (pointing) to the back. The diagram in the instructions has the grooves on the sides of the rotor backwards from the actual product.
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Apr 10 2009, 12:58 AM
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 R35 Member Group: Members Posts: 2,384 Joined: 28-March 06 From: SoCal Member No.: 9,355 |
i was wondering where you went to, Jonathan ;)
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Apr 10 2009, 01:08 AM
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SpecV Member Group: Members Posts: 3,469 Joined: 5-December 07 From: NorCal Member No.: 12,460 |
QUOTE (Visual Homage @ Apr 10 2009, 01:58 AM)  i was wondering where you went to, Jonathan ;) Just busy so not able to spend as much time on the forums but I still check in at least once a week. |
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Apr 10 2009, 01:10 AM
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#6
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R35 Member Group: Members Posts: 2,384 Joined: 28-March 06 From: SoCal Member No.: 9,355 |
yeah i hear you; i've been away for quite a while; back now for a little fun, have to ruin all the haters' day here a little. liven up the place. you know how it is.
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Apr 10 2009, 01:53 AM
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#7
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R35 Member Group: Members Posts: 2,078 Joined: 13-July 07 Member No.: 11,886 |
QUOTE (Neoseven @ Apr 10 2009, 01:55 AM) The grooves will be going the same direction as the internal vanes on the actual rotors, the vanes exiting (pointing) to the back. The diagram in the instructions has the grooves on the sides of the rotor backwards from the actual product. well the vanes point in both directions...actually in 48 different directions.. Do you mean the vanes on the TOP of the rotor are directed toward the back? -------------------- 2009 Nissan GT-R, Premium Edition, Gunmetal/Black, Clear front markers, HKS USA mid-pipe, Stillen sway bars, AP Racing rotors, Carbotech XP12 brake pads, Stillen SS brake lines, Candy apple red calipers, Toyo R888 tires
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Apr 10 2009, 08:01 AM
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 www.goturnstop.com Group: Vendors Posts: 1,243 Joined: 27-June 08 Member No.: 13,590 |
QUOTE (jmunjr @ Apr 10 2009, 03:53 AM) well the vanes point in both directions...actually in 48 different directions.. Do you mean the vanes on the TOP of the rotor are directed toward the back? yes. -------------------- Authorized reseller:
| Haltech | JRZ | OS Giken | Carbotech | aeroMOTION | Pentosin | Motul | 803.629.1982 http://cannonballgtr.com/ GoTurnStop.com  |
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Apr 10 2009, 09:19 AM
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#9
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 Brake maven Group: Members Posts: 321 Joined: 12-January 09 From: SoCal Member No.: 15,293 |
QUOTE (jmunjr @ Apr 9 2009, 11:06 PM) My rotors match the ones in the video but do not match the diagram included. The instructions match the concept of pumping air from the center out, but the slots on my rotors and in the video do not match the ones in the diagram. Sorry for any confusion. The answer posted above is correct. It is the vanes that determine rotational direction, not the face pattern. The diagram has been around for quite a while and meant to be generic. It looks like it is time to get that old thing updated! The old school way we used to teach the NASCAR guys was to put a pen or pencil into the vanes at the top of the disc. If it pointed to the rear of the car, it was installed correctly. If not, swap it with the other side. One funny side note: I've seen more than one E36 M3 with the factory curved-vane front rotors installed backwards... This post has been edited by AP Racing - Chris_B: Apr 10 2009, 09:19 AM |
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Apr 10 2009, 09:19 AM
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 R34 Member Group: Members Posts: 1,608 Joined: 18-November 07 From: LBC Member No.: 12,377 |
They look like they match to me. The one in the picture there, it has the attachment points on the outside of the rotor. Thats the right side disk.
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Apr 10 2009, 10:20 AM
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#11
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R35 Member Group: Members Posts: 2,078 Joined: 13-July 07 Member No.: 11,886 |
QUOTE (tyndago @ Apr 10 2009, 10:19 AM) They look like they match to me. The one in the picture there, it has the attachment points on the outside of the rotor. Thats the right side disk. Look again. The "brake pros" insert has the vanes and slots criss-crossing. My discs and the ones in the video are "parallel"... I got my answer so no problem now. This post has been edited by jmunjr: Apr 10 2009, 10:20 AM -------------------- 2009 Nissan GT-R, Premium Edition, Gunmetal/Black, Clear front markers, HKS USA mid-pipe, Stillen sway bars, AP Racing rotors, Carbotech XP12 brake pads, Stillen SS brake lines, Candy apple red calipers, Toyo R888 tires
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Apr 10 2009, 04:08 PM
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#12
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R34 Member Group: Members Posts: 1,608 Joined: 18-November 07 From: LBC Member No.: 12,377 |
QUOTE (jmunjr @ Apr 10 2009, 09:20 AM) Look again. The "brake pros" insert has the vanes and slots criss-crossing. My discs and the ones in the video are "parallel"... I got my answer so no problem now. Ok. I see now. The picture of the slots is wrong. I was only looking at the vanes, as they are the important part. The slots are just decoration. -------------------- |
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Apr 10 2009, 05:32 PM
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#13
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 R35 Member Group: Members Posts: 2,403 Joined: 22-October 07 From: Aloha Member No.: 12,161 |
QUOTE (AP Racing - Chris_B @ Apr 10 2009, 08:19 AM) One funny side note: I've seen more than one E36 M3 with the factory curved-vane front rotors installed backwards... Has anyone seen OEM IS-F rotors, there was only one part# and the cross-drilled pattern is backwards on one side of the car  Regardless of the functionality of "pillar vanes", that would still bother the CRAP out of me.
-------------------- best 1/4 = 10.80 @ 129.3 MPH
best 1/8 = 6.8 @ 103 MPH Best 60ft = 1.6 tuned byTim Bailey  |
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