[griffian]

Hi all

I have been doing such research into the weights of the different components of three different models as shown below for info on unsprung weight. It will be good to look at these before you mod.

FN 2 Type R

EBC GD disc front

Code: GD1118 300mm dia x 25mm thick = 13.8kg

Yellow stuff pads front

DP41254R = 135H x 52W x 16TH (mm) = 1.6kg


EBC GD rear disc (same as FK3 2.2 diesel)

GD1368 260mm dia 9mm thick = 7.2kg

Yellow stuff pads rear

DP41902R = 95.7H x 46.5W x 15.5TH (mm) = 1.1 kg

Type R caliper including carrier and bolts = 4.5KG x 2 = 9KG

Therefore total weight = 32.7 ( Excluding wheels)

Type S 17" OEM wheels with tyres = 23 kg per corner
Type R 18" OEM wheels with tyres = ?????

FK3 2.2 Diesel

EBC GD disc front

Code: GD1367 282mm dia x 23mm thick = 13.4kg

Yellow stuff pads front

DP41901R = 131.7H x 56W x 17.8TH (mm) = 1.8kg


EBC GD rear disc (same as FK3 2.2 diesel)

GD1368 260mm dia 9mm thick = 7.2kg

Yellow stuff pads rear

DP419902R = 95.7H x 46.5W x 15.5TH (mm) = 1.1 kg

FK3 2.2 caliper including carrier and bolts = 5KG x 2 = 10KGEBC GD disc front

Therefore total = 33.5 excluding wheels.


Accord Type R

Code: GD1132 300mm dia x 28mm thick = 16.6kg

Yellow stuff pads front

DP4872R = 148H x 59W x 17TH (mm) = 2.3kg


EBC GD rear disc (same as FK3 2.2 diesel)

GD1368 260mm dia 9mm thick = 7.2kg (Will be same as type R and 2.2)

Yellow stuff pads rear

DP41902R = 95.7H x 46.5W x 15.5TH (mm) = 1.1 kg (Will be the same as type R and 2.2)

Type R caliper including carrier and bolts = ??? ( I still need to find out)

Therefore total so far is 27.2 without the calipers and carriers. This looks by far the heaviest setup.

As you can all appreciate you can compare now with different alloy wheel weights to look at your unsprung weight.

N.B. 1kg unsprung = 10kg of weight!

 

[coste1l]

so ctr calipers are lighter i will ignore the fact that the discs and pads are slkightly heavier.... thanks for this mate

 

[griffian]

so ctr calipers are lighter i will ignore the fact that the discs and pads are slkightly heavier.... thanks for this mate

No problem mate, you are most welcome.

Conclusion so far then is that the type r setup is best for unsprung weight but only by less than 1kg!

Is it worth the money to upgrade though as you are only taking 18mm overall dia increase and the pads for type r are nearly the same size as the 2.2?

However the discs can take more heat on the type r as it is 18mm larger and 2mm thicker.

However the type r accord is 300mm so 18mm bigger than 2.2, the disc is 4mm thicker, the pads are larger and the calipers are twin pot.

Therefore in theory the atr should have the most braking force, but is it worth the unsprung weight increase?

Does anyone know or can find out the weight of the atr calipers are so that I can complete my quest?

Any information or comments are most welcome.

Happy new year!

 

[griffian]

Hi all

I have been doing such research into the weights of the different components of three different models as shown below for info on unsprung weight. It will be good to look at these before you mod.

FN 2 Type R

EBC GD disc front

Code: GD1118 300mm dia x 25mm thick = 13.8kg

Yellow stuff pads front

DP41254R = 135H x 52W x 16TH (mm) = 1.6kg


EBC GD rear disc (same as FK3 2.2 diesel)

GD1368 260mm dia 9mm thick = 7.2kg

Yellow stuff pads rear

DP41902R = 95.7H x 46.5W x 15.5TH (mm) = 1.1 kg

Type R caliper including carrier and bolts = 4.5KG x 2 = 9KG

Therefore total weight = 32.7 ( Excluding wheels)

Type S 17" OEM wheels with tyres = 23 kg per corner
Type R 18" OEM wheels with tyres = ?????

FK3 2.2 Diesel

EBC GD disc front

Code: GD1367 282mm dia x 23mm thick = 13.4kg

Yellow stuff pads front

DP41901R = 131.7H x 56W x 17.8TH (mm) = 1.8kg


EBC GD rear disc (same as FK3 2.2 diesel)

GD1368 260mm dia 9mm thick = 7.2kg

Yellow stuff pads rear

DP419902R = 95.7H x 46.5W x 15.5TH (mm) = 1.1 kg

FK3 2.2 caliper including carrier and bolts = 5KG x 2 = 10KGEBC GD disc front

Therefore total = 33.5 excluding wheels.


Accord Type R

Code: GD1132 300mm dia x 28mm thick = 16.6kg

Yellow stuff pads front

DP4872R = 148H x 59W x 17TH (mm) = 2.3kg


EBC GD rear disc (same as FK3 2.2 diesel)

GD1368 260mm dia 9mm thick = 7.2kg (Will be same as type R and 2.2)

Yellow stuff pads rear

DP41902R = 95.7H x 46.5W x 15.5TH (mm) = 1.1 kg (Will be the same as type R and 2.2)

Type R caliper including carrier and bolts = 5.8kg x 2 = 11.6kg

Therefore total so far is 38.8 without the calipers and carriers. This looks by far the heaviest setup. However due to the surface area of the pads and pistons the braking force is better and heat dissipation is better again as thicker disc compared to civic type r disc 25mm and far better by 4mm for the 2.2 disc and bigger dia by 18mm!


As you can all appreciate you can compare now with different alloy wheel weights to look at your unsprung weight.

N.B. 1kg unsprung = 10kg of weight!

This has been updated now look!!!

 

[griffian]

No problem mate, you are most welcome.

Conclusion so far then is that the type r setup is best for unsprung weight but only by less than 1kg!

Is it worth the money to upgrade though as you are only taking 18mm overall dia increase and the pads for type r are nearly the same size as the 2.2?

However the discs can take more heat on the type r as it is 18mm larger and 2mm thicker.

However the type r accord is 300mm so 18mm bigger than 2.2, the disc is 4mm thicker, the pads are larger and the calipers are twin pot.

Therefore in theory the atr should have the most braking force, but is it worth the unsprung weight increase?

Does anyone know or can find out the weight of the atr calipers are so that I can complete my quest?

Any information or comments are most welcome.

Happy new year!

I have found out the weight of the atr caliper and it weighs 5.8kg so 11.6 total.

So ATR Total = 38.8kg
CTR Total = 32.7kg
2.2 Total = 33.5 kg

The best braking setup overall IMHO is the ATR
Second = CTR
Last = 2.2 Civic.

The only drawback is unsprung weight that equates to a 6.1kg (ATR) heavier than the CTR. This equates to 60kg.

But is the unsprung a factor to consider the safety aspect of braking?

 

[griffian]

To the moderators

Can the table of results be added to the wiki or is there any objections from members/mods?

Cheers

Ian

 

[FWH]

Please feel free to add this info to the wiki.

 

[griffian]

How do I do that mate?

 

[FWH]

How do I do that mate?

Help:Contents - Civinfo Wiki

 

[MeganoOdles]

great work! now i'm tempted to get CTR calipers and disc

 

[griffian]

I think you only need atr if you use the car on the track a lot as it gives better braking performance.

They would not have put them on the accord type r otherwise.

 

[griffian]

Sorry I have measured the 2.2 piston on brake wrong!

It should be 54mm and not 57mm, they are same size as ctr piston.

Sorry!

 

[WreviloX]

To further update this, I have been doing some desktop research with regard to FK2, FN2 and CU2 front brakes using the weights of OEM replacement discs and pads from the Ferodo website and caliper weights from here. I calculate the respective weights to be 24.5kg, 26.8kg and 35.9 kg respectively.

Any idea whether adding approximately 11.5kg to the unsprung weight of a FK2 would be noticeable?