Slotted Rotors on Cayman S? - Dorkiphus.net
Navigation » Dorkiphus.net > Technical & Track Disussions > Porsche Technical Discussions » Slotted Rotors on Cayman S?

Porsche Technical Discussions Porsche related technical discussions and questions go here.

Reply
 
Thread Tools Display Modes
  #1  
Old 08-26-2022, 09:57 PM
Dr K's Avatar
Dr K Dr K is offline
Colorado's finest
 
Join Date: Apr 2005
Location: Montgomery County, MD
Posts: 16,353
Dr K has two HoF threadsDr K has two HoF threads
Default Slotted Rotors on Cayman S?

Has anyone tried the Sebro slotted rotors on their Cayman S (esp. for track use)? The choices are drilled (lots of suppliers) or the Sebro slotted. I assume they'll get fewer cracks (i.e. none between the holes because there are no holes) but do they not cool as well? Are they significantly heavier?

Thanks in advance.

Peter
__________________
Peter (not "Pete") K.

2026 Lucid Gravity Grand Touring (EV Tow Vehicle)
1997 Spec Boxster #671
2016 Cayman S
2016 Toyota Highlander--wife's DD
2017 VW GTI SE (DD)

Gone and missed:
2003 Miata ("SM") race car
1992 Miata ("SSM") race car
2009 911 C2S Coupe
2004 Toyota Prius - sold to son's girlfriend
2006 Dodge Durango
2003 Acura MDX
86 Black 911 Coupe race car
86 Gold 911 Targa
82 WineRedMetallic 911 Targa
Reply With Quote
  #2  
Old 08-27-2022, 06:57 AM
RV4Flyer's Avatar
RV4Flyer RV4Flyer is offline
 
Join Date: Jan 2014
Location: Gaithersburg
Posts: 441
RV4Flyer
Default

I used slotted Sebro rotors for years on both my Cayman's until I switched to Girodiscs. I can check, I may have some useable ones I removed when I made the change if you are interested in checking them out.
__________________
Mike
14 981 Cayman S

Wall of Dearly Departed Loved Ones
07 987 Cayman S
03 996
86 944
74 914
78 924

Bro Code Rule 43:
When a Bro learns another Bro has been in a traffic accident, they must first ask what condition the car is in.
Reply With Quote
  #3  
Old 08-28-2022, 08:45 PM
Dr K's Avatar
Dr K Dr K is offline
Colorado's finest
 
Join Date: Apr 2005
Location: Montgomery County, MD
Posts: 16,353
Dr K has two HoF threadsDr K has two HoF threads
Default

Thanks, Mike.
__________________
Peter (not "Pete") K.

2026 Lucid Gravity Grand Touring (EV Tow Vehicle)
1997 Spec Boxster #671
2016 Cayman S
2016 Toyota Highlander--wife's DD
2017 VW GTI SE (DD)

Gone and missed:
2003 Miata ("SM") race car
1992 Miata ("SSM") race car
2009 911 C2S Coupe
2004 Toyota Prius - sold to son's girlfriend
2006 Dodge Durango
2003 Acura MDX
86 Black 911 Coupe race car
86 Gold 911 Targa
82 WineRedMetallic 911 Targa
Reply With Quote
  #4  
Old 08-29-2022, 10:13 AM
HoodPin's Avatar
HoodPin HoodPin is offline
 
Join Date: Dec 2004
Location: Monrovia, MD
Posts: 10,765
HoodPin
Default

I much prefer the slotted rotors now, and am staying away from any new purchases of holey variety. If you still have any, I think they're ok to use up on the rear. The fronts get punished, and that's where I've encountered cracks in drilled rotors.
__________________
- Tony P.

Currently
- 1984 944 SP2 racer
- 1977 911 KM Special vintage racer
- 2000 Boxster S (now mine)
- 1995 993 (garage queen)
- 2007 Cayman S (wife's track beast)
- 2017 F350 (tow monster)
- 2018 Jeep Wrangler
- 1982 911 Targa (resurrection in process)
Gone but not forgotten
- 1989 944S2
- 1979 RX7
- 1986 944
- 1991 944S2 (in car heaven...)
- 2001 Chevy Suburban 2500 (FIL's beast now)
- 2012 Cayman R
Reply With Quote
  #5  
Old 08-29-2022, 05:20 PM
Goggles Paesano's Avatar
Goggles Paesano Goggles Paesano is offline
Where's the beef?
 
Join Date: Jun 2015
Location: Earth - for now!!! Ocean City, Md
Posts: 652
Goggles Paesano
Default

So far I have cracked both drilled, and solid FRONT rotors (with real ducting - not home-made rigged up stuff). I have not cracked a slotted one. Like Tony said, I keep the drilled ones on the rear though. So, from my poorly acquired data, I say go slotted unless you have the budget to keep replacing them.
__________________
Turning good track cars into other people's headaches since 1990

Denis Jenkins (PCA'86)
95 318ti S54
95 318ti CS S50
02 325XIT
02 330i
98 328i
71 911T
72 914
70 Karmann Ghia,
96 f350 7.3
99 StarFlyte
13 C-Max
Gone
4 356's,1 996, 4 911's, 1 912, 2 Boxster S, 5 914's, 3 944's, 3 951, 1 924S, 4 95 m3, 03 M3,95 Ti/CS. 97M345, 84 rx7ITB, ITB gti 21, ITB GTI 48, 89 325is s52,07 Z4 coupe, 69 Charger General Lee, 2 66 Cadillac verts, 1 68 cadillac vert, 87 RX7 ITS and others
Reply With Quote
  #6  
Old 09-01-2022, 01:18 PM
CraftyBrewer's Avatar
CraftyBrewer CraftyBrewer is offline
 
Join Date: Aug 2021
Location: Haymarket, VA
Posts: 20
CraftyBrewer
Default

Have used both drilled and slotted. Fitted Sebro slotted to my Boxster last year with Pagid yellow pads. Lots of DE work and they are still good. They have the usual surface cracks, but nothing like the drilled variety.

Probably psychological, but I think it brakes better.

A time bonus for me is that I don't have to clean out the holes after every event!
__________________
Current Lovers - ‘06 987.1, ‘17 Toureg
Past Lovers - ‘70 911T, 928S2, 996.1, 997.1S, 997.2S,
Reply With Quote
  #7  
Old 09-01-2022, 09:52 PM
Dr K's Avatar
Dr K Dr K is offline
Colorado's finest
 
Join Date: Apr 2005
Location: Montgomery County, MD
Posts: 16,353
Dr K has two HoF threadsDr K has two HoF threads
Default

Ordered the Sebro slotted rotors earlier this week (and will pick up rears from Mike). Thanks all.
__________________
Peter (not "Pete") K.

2026 Lucid Gravity Grand Touring (EV Tow Vehicle)
1997 Spec Boxster #671
2016 Cayman S
2016 Toyota Highlander--wife's DD
2017 VW GTI SE (DD)

Gone and missed:
2003 Miata ("SM") race car
1992 Miata ("SSM") race car
2009 911 C2S Coupe
2004 Toyota Prius - sold to son's girlfriend
2006 Dodge Durango
2003 Acura MDX
86 Black 911 Coupe race car
86 Gold 911 Targa
82 WineRedMetallic 911 Targa
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump