Brake discs (again)

[Contigo]

http://www.ebay.co.uk/itm/221511955738

 

[Contigo]

http://www.ebay.co.uk/itm/270930116885

 

[Neil Surrey Labs]

That's really cool Phil

 

[zagatoes30]

if 456 disc are the same bar the drilling that is a significant saving

 

[safrane]

Was there ever a 'sport' version of the 456 with uprated brakes?

 

[EnzoMC]

Was there ever a 'spprt' version of the 456 with uprated brakes?

nop, not a scuderia version yet however the 456 uprated disc are carbon ceramic.

 

[EnzoMC]

seems most new high end cars dont have drilled so very interesting. i badly need new fronts so will look to get 456 fronts installed.

what iam not sure of would this be a mod that would affect insurance ?

 

[Neil Surrey Labs]

I've just done a contrast/compare between the 550 and 456 discs.
There are a couple of dimensions which are different and these are the internal bell dimensions
On the 550 the width is 164mm on the 456 it's 163mm and the thickness of the face is 7mm on the 550 and 8mm on the 456
Whether that makes a difference in reality has to be seen.
If the disc is a tight fit on the hub it could well be. Anybody care to comment?

 

[BennyD]

seems most new high end cars dont have drilled so very interesting. i badly need new fronts so will look to get 456 fronts installed.

what iam not sure of would this be a mod that would affect insurance ?

If you tell them you have modded the brakes, they will probably take the opportunity to load your premium. If you fit 456 discs and don't tell them, they won't! It's not as if you are sneaking in a performance change is it? Also, if they do work better, that should drop your premium as you can stop quicker.

 

[EnzoMC]

I've just done a contrast/compare between the 550 and 456 discs.
There are a couple of dimensions which are different and these are the internal bell dimensions
On the 550 the width is 164mm on the 456 it's 163mm and the thickness of the face is 7mm on the 550 and 8mm on the 456
Whether that makes a difference in reality has to be seen.
If the disc is a tight fit on the hub it could well be. Anybody care to comment?

thanks for the research, have noted this and will speak to a garage on Monday and will report back.

If you tell them you have modded the brakes, they will probably take the opportunity to load your premium. If you fit 456 discs and don't tell them, they won't! It's not as if you are sneaking in a performance change is it? Also, if they do work better, that should drop your premium as you can stop quicker.

agree if they work better the insurance should lower but we all know they won't... will see if they fit first...

 

[Neil Surrey Labs]

Enzo

I'm tempted to take one of my fronts off my car and measure it all up. the only difference I'm worried about is the 164mm-163mm discrepancy between the bell dimension of the two. If I find that the hub is less than 163mm across it'll fit.

 

[Contigo]

Get the 456 ones drilled and yes Neil is right 7mm as opposed to 8mm

 

[Rex B]

In the attachment written by Fran and posted by Phil you will see that Fran actually purchased the 456 Discs and fitted them to his 4200 so they do fit and I am sure they will work well for everyday use with a good set of pads.

There could however be a problem when you come to sell the car, if the person asks for an inspection as this could identify the fact that the discs are not standard which could result in the buyer pulling out or requesting a substantial reduction in price.

Rex B

Manual 3200

 

[EnzoMC]

Enzo

I'm worried about is the 164mm-163mm discrepancy between the bell dimension of the two. If I find that the hub is less than 163mm across it'll fit.

me too, will contact a ferrari garage on Monday and see what they say - maybe if they have a free slot will drop the car off with them, need to get them done very soon - like a warp record

Get the 456 ones drilled and yes Neil is right 7mm as opposed to 8mm

I'd keep them un-drilled as it seems to be the norm... hopefully a performance reason

 

[EnzoMC]

In the attachment written by Fran and posted by Phil you will see that Fran actually purchased the 456 Discs and fitted them to his 4200 so they do fit and I am sure they will work well for everyday use with a good set of pads.

There could however be a problem when you come to sell the car, if the person asks for an inspection as this could identify the fact that the discs are not standard which could result in the buyer pulling out or requesting a substantial reduction in price.

Rex B

Manual 3200

aren't the 3200 different from the 4200 and Gransport ? Fran post obviously says otherwise

agreed and has crossed my mind but no intention of selling so not a prob - just hope these last longer than ~10,000 miles

 

[Neil Surrey Labs]

Get the 456 ones drilled and yes Neil is right 7mm as opposed to 8mm

I'm more worried about the 550's 164mm vs the 456's 163mm dimension.

I would be interested to hear what happens Enzo, but I'm going to have a tinker/measure on Monday.

 

[EnzoMC]

I'm more worried about the 550's 164mm vs the 456's 163mm dimension.

I would be interested to hear what happens Enzo, but I'm going to have a tinker/measure on Monday.

doh.. can not believe i got my numbers mixed up.

i ask but was suggested not to use them as older disc to gransport, maybe same age for 3200 but garage not used them on 3200/4200... they recommended originals or the brembos (if you can find a set)

garage would only look to fit more up to date parts or tried and tested solution when it comes to safety.... i know Fran did this but would agree with garage when it comes to safety.

sorry i couldn't get the answer we were maybe hoping for.

 

[Neil Surrey Labs]

OK I took the wheel off and had a good look.
The couple of 1mm differences in the dimensions a 456 represents looks like they won't make any difference to fit or usage.

So Ive bought a couple

 

[Contigo]

Well done Neil!

 

[hodroyd]

Let us know how you get on with them Neil..??