Hi guys, I'm trying to find out what front brake setup the Yeti uses. The brake disc sizes certainly seem identicle to other vag models ie the Octy uses 288mm and 312mm discs but is the whole assembly (calipers and carriers) the same? Any help would be appreciated

Hi Focus,

try the tech guide My link might be what your looking for, or at least some of it.

Regards,

TP

Hi Focus,

try the tech guide My link might be what your looking for, or at least some of it.

Regards,

TP

Thanks TP. Ive already seen and read your spec post (with interest) but Im basically after trying to find out if the parts are literally swapable ie have skoda simply gone to the Octy parts bin for the Yeti brake assemby? Im guessing yes but I need to be sure.

To answer the question 100% I guess it would help to have the dealer parts system to hand.... :(

Thanks anyway,

Lee

Thanks TP. Ive already seen and read your spec post (with interest) but Im basically after trying to find out if the parts are literally swapable ie have skoda simply gone to the Octy parts bin for the Yeti brake assemby? Im guessing yes but I need to be sure.

To answer the question 100% I guess it would help to have the dealer parts system to hand.... :(

Thanks anyway,

Lee

This may only be part information, but the Octy can use 15" wheels, but the Yeti cannot. This must be the brake disc clearance for the Yeti Brakes.

I was surprised that the 1.8 TSI does not have the same brake set-up as the 2.0 TDI 125 kW CR. there cannot be much difference in the weight, and the max speed is about the same. It seems like the 125 kW TDI is better equipped in this respect. hey sure do work well.

This may only be part information, but the Octy can use 15" wheels, but the Yeti cannot. This must be the brake disc clearance for the Yeti Brakes.

I was surprised that the 1.8 TSI does not have the same brake set-up as the 2.0 TDI 125 kW CR. there cannot be much difference in the weight, and the max speed is about the same. It seems like the 125 kW TDI is better equipped in this respect. hey sure do work well.

This is exactly my issue. I think the 1.8TSi is underbraked as standard, although saying that, every car Ive owned in the last 10 years has had upgraded brakes so maybe its simply a case of me already being used to having powerful brakes on anything Ive regulalry used rather than the standard 1.8TSi Yeti ones just being a little naff.

If the statement about the Yeti having to have 1" bigger wheels to clear the calipers is true (and I dont doubt that it is) then thats not good for the plans I had been considering. :(

Thanks for the info.

This is exactly my issue. I think the 1.8TSi is underbraked as standard, although saying that, every car Ive owned in the last 10 years has had upgraded brakes so maybe its simply a case of me already being used to having powerful brakes on anything Ive regulalry used rather than the standard 1.8TSi Yeti ones just being a little naff.

If the statement about the Yeti having to have 1" bigger wheels to clear the calipers is true (and I dont doubt that it is) then thats not good for the plans I had been considering. :(

Thanks for the info.

All I can really tell you is that the front brakes on mine would definitely not fit in a 15" wheel.

This is exactly my issue. I think the 1.8TSi is underbraked as standard,

I'd agree, at least from my experience of the CR140 Yeti I drove for a few days recently

If the statement about the Yeti having to have 1" bigger wheels to clear the callipers is true (and I don't doubt that it is) then that's not good for the plans I had been considering.

Are you thinking of a 312mm conversion or something more extravagant?

I'd agree, at least from my experience of the CR140 Yeti I drove for a few days recently

Are you thinking of a 312mm conversion or something more extravagant?

A 312mm conversion would go straight on with no issue as thats what the CR170 Yeti comes with from the factory.

Although Id guess the 312mm swap would obviously bring 'better' braking, Im not convinced it would be enough for me, longer term. The 312mm and (my) 288mm setup use the same caliper - they simply use a different carrier to space the caliper further out on the the slightly bigger disk.

I was really hoping these would go on under my standard 17's...

http://briskoda.net/forums/topic/160389-brembo-big-brake-kit-special-offer/

Im now less hopeful than ever! :'(

A 312mm conversion would go straight on with no issue as thats what the CR170 Yeti comes with from the factory.

Although Id guess the 312mm swap would obviously bring 'better' braking, Im not convinced it would be enough for me, longer term. The 312mm and (my) 288mm setup use the same caliper - they simply use a different carrier to space the caliper further out on the the slightly bigger disk.

I was really hoping these would go on under my standard 17's...

http://briskoda.net/forums/topic/160389-brembo-big-brake-kit-special-offer/

Im now less hopeful than ever! :'(

I would suggest that ".... 18" Wheels are required in order for this kit to fit your vehicle. ..." is the key to the question!

But then surely 18s would go nicely on a Yeti with 225/45 18 tyres (worked it out earlier as I have 18s stood by already) and then you will just need a set of Eibach lowering springs and you will have one mean machine.

I would suggest that ".... 18" Wheels are required in order for this kit to fit your vehicle. ..." is the key to the question!

But then surely 18s would go nicely on a Yeti with 225/45 18 tyres (worked it out earlier as I have 18s stood by already) and then you will just need a set of Eibach lowering springs and you will have one mean machine.

I cant see myself wanting to drop the Yeti 30mm - I just dont see it as that type of vehicle. Then again Ive been known to change my mind on modifications once the ball gets rolling.

I was also keen to keep the standard 17" alloys on the car. I find the handling and ride to be superb so I didnt want to change it.

I may speak to JKM again and see if I can pop in for a Brembo fitment - at least if they dont fit I know whats involved in making them fit if this is the way I decide to go ie a wheel change.

Although Id guess the 312mm swap would obviously bring 'better' braking, Im not convinced it would be enough for me, longer term. The 312mm and (my) 288mm setup use the same caliper - they simply use a different carrier to space the caliper further out on the the slightly bigger disk.

So, for those of us who don't know how to interpret brake specifications, is there any difference between the contact areas of pad on disc (between 1.8TSi and CR170) since I'm guessing this is the primary determinant of braking force? I'm also guessing that spacing the pad a bit further out on a larger disk means that the disk doesn't get quite so hot under heavy braking and so the brakes don't fade quite as much. But is there any more to it than that?

So, for those of us who don't know how to interpret brake specifications, is there any difference between the contact areas of pad on disc (between 1.8TSi and CR170) since I'm guessing this is the primary determinant of braking force? I'm also guessing that spacing the pad a bit further out on a larger disk means that the disk doesn't get quite so hot under heavy braking and so the brakes don't fade quite as much. But is there any more to it than that?

From my limited understanding, the bigger disks would be the reason that the things would be kept cooler under heavy use - bigger disk area to dissipate the heat?!

The pads are the same so same pad contact area. The main benefit to me would be the increased 'leverage' on the bigger disks from moving the caliper outwards from the disk centre.

From experience, ive had more issues more with the fluid when talking about 'overheating' than the brake hardware itself but saying that, the hardware has always been upgraded above factory levels.

So, for those of us who don't know how to interpret brake specifications, is there any difference between the contact areas of pad on disc (between 1.8TSi and CR170) since I'm guessing this is the primary determinant of braking force?

The callipers/pads are the same on the 1.8TSI and CR170; so give the same 'contact patch'. The difference is that the CR170 in having 312mm discs means that the pads/callipers are sitting 24mm (1 inch) further out than on the 288mm discs of the 1.8TSI; so they can exert great leverage i.e. braking force.

I'm also guessing that spacing the pad a bit further out on a larger disk means that the disk doesn't get quite so hot under heavy braking and so the brakes don't fade quite as much.

I don't believe there is much in this argument

But is there any more to it than that?

Yes; loads!

Primarily pad/calliper size and efficiency but also the type/quality of the brake pad particularly the coefficient of friction. Typically OE pads have a coefficient of friction of 0.35 to 0.4 whereas uprated pads, say, EBC Red stuff or Ferrado DS2500s have a coefficient of friction of 0.45 to 0.5, plus a greater ability to withstand hard use and heat build up; hence they will provide stronger, fade free braking.

"The difference is that the CR170 in having 312mm discs means that the pads/callipers are sitting 24mm (1 inch) further out than on the 288mm discs of the 1.8TSI; so they can exert great leverage i.e. braking force."

This is not quite true. The difference in diameters is 0.94 inch, so the calipers will be 0.47 inch further away from the center of the disc.

"The difference is that the CR170 in having 312mm discs means that the pads/callipers are sitting 24mm (1 inch) further out than on the 288mm discs of the 1.8TSI; so they can exert great leverage i.e. braking force."

This is not quite true. The difference in diameters is 0.94 inch, so the callipers will be 0.47 inch further away from the center of the disc.

Agreed; Doh! ..... but I got the principle correct and yes I know that 24mm is not exactly one inch (but it is nearly).

Edited 10 May, 201016 yr by bahnstormer vrs

Agreed; Doh! ..... but I got the principle correct and yes I know that 24mm is not exactly one inch (but it is nearly).

25.4 mm actually.

I was not picking on the diffeence between 0.94 and 1 inch, but on the fact that you need to relate to radius differences, not diameter - as you well understood.

I have incidentally not felt any need for better braking on the 170 CR - several fast retardations from 100mph+ in traffic in Germany. it is also the only car, where I have experienced all four wheels use the ABS at the same time - on a dry road. Lady with a dog stepping smartly into a pedestrian crossing without looking.