Grooved or grooved and drilled?
30 May 2009, 01:00 PM
#1
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Grooved or grooved and drilled?
Hi All,
My front discs and pads have seen the end of the days
, I have a 98 uk turbo with four pots and 294mm discs.
Was just wondering what people advise to go for regarding discs - Grooved or Grooved and vented. I dont want anything that will break the bank - below £100 preferably.
Also looking at the Ferodo DS2500 pads - any other suggestions as again would like to spend around the £100 mark.
Your input would be appreciated
Cheers
Jenks
My front discs and pads have seen the end of the days
, I have a 98 uk turbo with four pots and 294mm discs. Was just wondering what people advise to go for regarding discs - Grooved or Grooved and vented. I dont want anything that will break the bank - below £100 preferably.
Also looking at the Ferodo DS2500 pads - any other suggestions as again would like to spend around the £100 mark.
Your input would be appreciated
Cheers
Jenks
30 May 2009, 02:29 PM
#2
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Venting is the internal structure of the disc rotor.
Drilling is something else, to be avoided on a road car ( as a hole raises the stress by a factor of 5 ! ).
Front will likely be vented (with or without grooves)
Rears may be solid
HTH
dunx
P.S. I paid more for mine (STI), so you may get them for that (?)
Drilling is something else, to be avoided on a road car ( as a hole raises the stress by a factor of 5 ! ).
Front will likely be vented (with or without grooves)
Rears may be solid
HTH
dunx
P.S. I paid more for mine (STI), so you may get them for that (?)
30 May 2009, 04:24 PM
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Grooved, as dunx said, more stress on the drilled discs, the drilling causes very small stress fractures in the metal which under extreme temp/cooling cause larger cracks and can lead to disc failure (Porsche do it differently and dont drill their discs though 
)
Tony
(Porsche do it differently and dont drill their discs though )Tony
30 May 2009, 06:45 PM
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Doh!!!
Thats whats I meant grooved or drilled and grooved!! I decided to go with the grooved ones and yellow stuff pads, had to buy a new MAF sensor today so that had ate into by budget
Are yellow stuff any good?
Thats whats I meant grooved or drilled and grooved!! I decided to go with the grooved ones and yellow stuff pads, had to buy a new MAF sensor today so that had ate into by budgetAre yellow stuff any good?
30 May 2009, 08:04 PM
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they are good, but u need to warm tmeh up b4 they start to brake hard.. mabe redstuff would be better.. i have now ferodo DS PF.. i let u know when i put them on the car with the DBA 4000 discs..
30 May 2009, 09:07 PM
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Venting is the internal structure of the disc rotor.
Drilling is something else, to be avoided on a road car ( as a hole raises the stress by a factor of 5 ! ).
Front will likely be vented (with or without grooves)
Rears may be solid
HTH
dunx
P.S. I paid more for mine (STI), so you may get them for that (?)
Drilling is something else, to be avoided on a road car ( as a hole raises the stress by a factor of 5 ! ).
Front will likely be vented (with or without grooves)
Rears may be solid
HTH
dunx
P.S. I paid more for mine (STI), so you may get them for that (?)
Mmmmm
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30 May 2009, 10:07 PM
#8
I got my brakes from Ian Godney on here, speak to him, he is the man!
I run Drilled and grooved disks on the front for over a year now driving everyday with no problems yet.............4 pots and EBC Yellow stuff pads!
I just got the groved solid disks for the rear off him with his own pads for £115 delivered
forgot to say I have a MY98 aswell
I run Drilled and grooved disks on the front for over a year now driving everyday with no problems yet.............4 pots and EBC Yellow stuff pads!
I just got the groved solid disks for the rear off him with his own pads for £115 delivered
forgot to say I have a MY98 aswell
31 May 2009, 04:16 PM
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I've run grooved and drilled on the front of my classic for over 6 years now. Mine came from Ian at Godspeed too, I've never had a problem, and am on my second set, after the others wore out
335mm discs, Godspeed Brembos.
335mm discs, Godspeed Brembos.
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