GP2 2-piece Rotor substitute?
#1
GP2 2-piece Rotor substitute?
Hi,
Has anybody found any company that makes compatible 2-piece rotors for the GP2s?
These rotors are very heavy, and it would be nice to alleviate some of the unsprung weight. Not that it really matters much, but when you combine the weight of the rotors and the calipers, it's quiet a bit of added weight in the front suspension.
R,
Manny
Has anybody found any company that makes compatible 2-piece rotors for the GP2s?
These rotors are very heavy, and it would be nice to alleviate some of the unsprung weight. Not that it really matters much, but when you combine the weight of the rotors and the calipers, it's quiet a bit of added weight in the front suspension.
R,
Manny
Last edited by Manny_cooper; 12-17-2015 at 01:26 PM. Reason: Added "?" to title
#2
Hi,
Has anybody found any company that makes compatible 2-piece rotors for the GP2s?
These rotors are very heavy, and it would be nice to alleviate some of the unsprung weight. Not that it really matters much, but when you combine the weight of the rotors and the calipers, it's quiet a bit of added weight in the front suspension.
R,
Manny
Has anybody found any company that makes compatible 2-piece rotors for the GP2s?
These rotors are very heavy, and it would be nice to alleviate some of the unsprung weight. Not that it really matters much, but when you combine the weight of the rotors and the calipers, it's quiet a bit of added weight in the front suspension.
R,
Manny
Any specialised motorsport brake shop can do this as a custom job though. I looked into it, and it was possible, but would have been $$. If you want to go that route it is probably just as cheap to replace the whole brake system with an off the shelf Brembo or AP BBK that comes with 2 piece rotors. You would then end up with the 2 piece rotors, plus a better quality and lighter caliper
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#13
Toddtce
Are you building 2 piece front rotors, 330 mm? Is there a friction surface that can be used with your center hats that is off the shelf or will we need to buy a complete set each time we need to replace the rotors? I assume that the base material is used for other rotors also, what pads play well with your custom rotors. I curently use Carbotech xp10 I use my car on the track and the street.
Are you building 2 piece front rotors, 330 mm? Is there a friction surface that can be used with your center hats that is off the shelf or will we need to buy a complete set each time we need to replace the rotors? I assume that the base material is used for other rotors also, what pads play well with your custom rotors. I curently use Carbotech xp10 I use my car on the track and the street.
#14
#16
Toddtce
Are you building 2 piece front rotors, 330 mm? Is there a friction surface that can be used with your center hats that is off the shelf or will we need to buy a complete set each time we need to replace the rotors? I assume that the base material is used for other rotors also, what pads play well with your custom rotors. I curently use Carbotech xp10 I use my car on the track and the street.
Are you building 2 piece front rotors, 330 mm? Is there a friction surface that can be used with your center hats that is off the shelf or will we need to buy a complete set each time we need to replace the rotors? I assume that the base material is used for other rotors also, what pads play well with your custom rotors. I curently use Carbotech xp10 I use my car on the track and the street.
#17
#19
#20
Installed the rotors yesterday. (And pads, lines, and pistons. But this will only be about the front rotors.)
Todd created this set based on the OE rotor blueprints from brembo. All those measurements were in metric. But his machine shop only worked with imperial. So the dimensions are not quite exactly the same.
There is no grub/set screw hole. It will be easier to hold it in place if you have studs (which I will be getting later on.)
Now the important bit: The rotor with the hat and hardware weighs in at 15.2lbs. The stock used rotor weighed about 19.8 lbs. I would guess 20-ish lbs brand new. So weight savings are about 5lbs per corner.
I lined up the caliper and test fitted it onto the rotor. The pad was too close to the hat. Note: I am using Hawk DTC-30 pads. Fitment may be different for other pads.
So as Todd predicted, I needed to add a spacer/shim to where the caliper mounted on to the bracket.
And voila! Perfect!
This is how it looks:
I dont have any real impressions. Track season hasnt kicked off yet. Ill have to see how it deals with the heat.
The steering does feel a wee bit lighter though.
Todd created this set based on the OE rotor blueprints from brembo. All those measurements were in metric. But his machine shop only worked with imperial. So the dimensions are not quite exactly the same.
There is no grub/set screw hole. It will be easier to hold it in place if you have studs (which I will be getting later on.)
Now the important bit: The rotor with the hat and hardware weighs in at 15.2lbs. The stock used rotor weighed about 19.8 lbs. I would guess 20-ish lbs brand new. So weight savings are about 5lbs per corner.
I lined up the caliper and test fitted it onto the rotor. The pad was too close to the hat. Note: I am using Hawk DTC-30 pads. Fitment may be different for other pads.
So as Todd predicted, I needed to add a spacer/shim to where the caliper mounted on to the bracket.
And voila! Perfect!
This is how it looks:
I dont have any real impressions. Track season hasnt kicked off yet. Ill have to see how it deals with the heat.
The steering does feel a wee bit lighter though.
#23
Thanks , they look really good. Full set GP2 JCW Brake lines:
https://www.ecstuning.com/Search/SiteSearch/ES2804348/ES2804348/
https://www.ecstuning.com/Search/SiteSearch/ES2804348/ES2804348/
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MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
#25
Thanks!
__________________
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
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