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Old 09 April 2018, 08:27 AM
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IainMilford
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Default Cosworth AP brakes

Hi does anyone have any experience with these brakes, I’m interested to understand the difference compared to the normal AP range, thanks
Old 09 April 2018, 09:50 AM
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FarfocelI
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could be bigger or smaller pistons but do not think so
old design heavy caliper, cp9040 is way better choice
Old 09 April 2018, 07:20 PM
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B9SLJ
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I have the ap cosworth calipers on my car. They are cp7040 calipers with 356mm rotors. Nice upgrade for any Subaru imo
Old 09 April 2018, 08:16 PM
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I'm pretty sure they are just 7040s with cosworth logo on?
Old 10 April 2018, 06:54 AM
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Yes busta they have 7040 on the rear of the calipers
Old 10 April 2018, 08:28 AM
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IainMilford
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Thanks chaps, what is the difference between the 9040 and 7040 calipers then?
Old 10 April 2018, 08:55 AM
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no real difference the 9040 is simply the newer version of the 7040 but both are decent performance road type calipers

to be specific the 9040 'forged' caliper is 3.7kgs so heavier than the 7040 at 3.4kgs
Old 10 April 2018, 01:20 PM
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I’ve been offered a set of cosworth ap’s at a great price but trying to work out if it’s worth the extra over a new set of k-sports, by the time I have my pad of choice it’s an extra £400-£500

Last edited by IainMilford; 10 April 2018 at 01:26 PM.
Old 10 April 2018, 02:01 PM
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Originally Posted by IainMilford
I’ve been offered a set of cosworth ap’s at a great price but trying to work out if it’s worth the extra over a new set of k-sports, by the time I have my pad of choice it’s an extra £400-£500
Ap are deffo woth it ove ksport, not to mention corrosion on the ksports over time. Budget caliper
Old 10 April 2018, 08:01 PM
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I’ve had ksport before AP and the ap are far superior brakes in my own experience
Old 10 April 2018, 09:53 PM
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i reckon the pad range on the APs will be more extensive too iain
Old 11 April 2018, 08:40 AM
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all depends on exactly which caliper is in the Cosworth kit but if its is the 7040/9040 family then the pads costs are generally lower than the Ksport (which uses a more competition derived AP 6pot shape) however on-going the replacement AP rotors will cost more
Old 11 April 2018, 11:15 AM
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FarfocelI
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Originally Posted by AS Performance
all depends on exactly which caliper is in the Cosworth kit but if its is the 7040/9040 family then the pads costs are generally lower than the Ksport (which uses a more competition derived AP 6pot shape) however on-going the replacement AP rotors will cost more
in 355mm buy ksport rotors -people rate them higher than ap's
or PFC best
https://www.demon-tweeks.co.uk/motor...lacement-discs

Last edited by FarfocelI; 11 April 2018 at 11:20 AM.
Old 11 April 2018, 09:04 PM
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andyf31
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@farfocelI
You’ve just said they are based on older heavier calipers yet been proven wrong now ksport are better than ap rotors based on what people say, do you have any basis for this assumption or just what you have heard at some point, any back to back testing over a period of time as I’ve been pretty happy with ap rotors over the years.
Old 11 April 2018, 10:29 PM
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FarfocelI
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Originally Posted by andyf31
@farfocelI
You’ve just said they are based on older heavier calipers yet been proven wrong now ksport are better than ap rotors based on what people say, do you have any basis for this assumption or just what you have heard at some point, any back to back testing over a period of time as I’ve been pretty happy with ap rotors over the years.
proven what?where i said heavier? old heavy design, new are heavy to, weight the same 3.7kg
https://www.google.com/url?sa=t&sour...Huv_4DBWohORip
it is about caliper flex plus new floating rotors, alloy pistons etc -plenty to learn You have yet
ap's were prone to crack few years back-Yes i have basis -google it
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