Hi guys

 

Can someone explain how Skoda got either (I think) 108, 138 or 148 hp from the same 2.0 litre diesel?  Did they just alter engine management software or are there physical differences like valve sizes? Is there any indication that the lower powered engines last longer?

 

Cheers

Edited 23 October, 20187 yr by olley

Software, different injector sizes, turbos, maybe cylinder head, some using sodium filled valves, possibly other things too.

 

So maybe not just a remap.

Celtic tuning say remapping my 100 engine up to 150 but the gearbox etc. is only ok up to this increase

Edited 23 October, 20187 yr by gumdrop

24 minutes ago, gumdrop said:

Celtic tuning say remapping my 100 engine up to 150 but the gearbox etc. is only ok up to this increase

 

Yeah, forgot to add, brakes uprated, gearboxes different ratios and to match max torque

Edited 23 October, 20187 yr by xman

5 hours ago, olley said:

Hi guys

 

Can someone explain how Skoda got either (I think) 108, 138 or 148 hp from the same 2.0 litre diesel?  Did they just alter engine management software or are there physical differences like valve sizes? Is there any indication that the lower powered engines last longer?

 

Cheers

My understanding is the 110 BHP and 140 BHP TDi only differ in terms of the engine mapping, whereas the 170 BHP has a larger Turbo / Intercooler and injectors.

 

The 148 BHP engine is the newer (Euro 6) 2.0 TDi and is a newer type of engine (the 110 BHP, 140 BHP and !70 BHP being Euro 5).

 

I understand the 170 BHP Euro 5 also has bigger front brakes.

 

Just to further confuse matters my current Euro 5 140 BHP Yeti was remapped and now develops ~170 BHP

My 110 PS is Euro 6.

Edited 23 October, 20187 yr by VAGCF

Interesting. I think all the higher output engines are 4x4, so carrying quite a lot more weight (axles, diff etc).

 

So, 140bhp+ in the 2wd version would be pretty interesting  I can't see particularly why brakes would need upgrading unless the car is made heavier?

AWD not really that much more weight than a FWD and sit a couple of adults in the rear.

Put 5 adults and some luggage in any of them even a 1.2 TSI and the brakes have to work.

35 minutes ago, olley said:

Interesting. I think all the higher output engines are 4x4, so carrying quite a lot more weight (axles, diff etc).

 

So, 140bhp+ in the 2wd version would be pretty interesting  I can't see particularly why brakes would need upgrading unless the car is made heavier?

4x4 can be 110, 140, 150 and 170 BHP, whereas 110 BHP can be either 2x4 or 4x4.

8 hours ago, pinkpanther said:

4x4 can be 110, 140, 150 and 170 BHP, whereas 110 BHP can be either 2x4 or 4x4.

 

Many thanks. I should have explained I was just thinking of the last versions (Euro 6) available, which I believe are only 110bhp 2WD or 148BHP 4x4

9 hours ago, Offski said:

AWD not really that much more weight than a FWD and sit a couple of adults in the rear.

Put 5 adults and some luggage in any of them even a 1.2 TSI and the brakes have to work.

 

Interesting, well the kerb weight of 1.2 Tsi is 1259kg . The most powerful diesel (170BHP) is1490kg. That's an impressive 231kg (509 lb) difference!

9 hours ago, olley said:

Interesting. I think all the higher output engines are 4x4, so carrying quite a lot more weight (axles, diff etc).

 

So, 140bhp+ in the 2wd version would be pretty interesting  I can't see particularly why brakes would need upgrading unless the car is made heavier?

The 2.0 diesel 110 has shopping trolley brakes, adequate but nothing to match a performance increase.

I towed a caravan and never felt the need for 150 (a little more torque would have been nice though)

8 minutes ago, gumdrop said:

The 2.0 diesel 110 has shopping trolley brakes, adequate but nothing to match a performance increase.

I towed a caravan and never felt the need for 150 (a little more torque would have been nice though)

 

I see, well I wonder if the Euro 6 models 110 bhp have the same brakes as Euro 6 4x4 models?

 

Unless a vehicle is given more weight (or a substantially higher top speed) I can't see why it would require more powerful brakes as a result of tuning for BHP/Torque?

 

I'm no scientist, but braking power required would be based on mass, and towing effectively increases mass.  Braking power is presumably one of the factors that limit towing weight?

Caravans have their own brakes, unbraked trailers are lighter to allow car brakes to cope.

I love my Yeti it handles well and performs well belying its rather retro look and leaving

many in its dust. I think mine is an EU6 engine but I cannot even recall my registration number

so I could be wrong.

Edited 24 October, 20187 yr by gumdrop

230kg is the weight of 2 of me and a 23kg suitcase.

 

Diesels are heavier than petrols and DSG's heavier than manuals and AWD's heavier than FWD.

Why they have different revenue weights, emission figures etc and getting new Skoda WLTP Approved has been a problem for Skoda.

The Yeti came in different power outputs and drivetrains because it was being designed under the principal 'Horses for courses'.

All do twice the UK NSL though and can carry 5 people and luggage.

 

Regardless of a 2.0TDI having 140 ps or mapped to 170ps the mapping adds no weight, 

and the brakes used stopping it at 70 mph when 140ps do the same job when it has 170ps.

If someone drives more spirited, always on the brakes because they have an extra raging 30 ps then that is another story.

Not going to stop the car passing a MOT brake efficiency test.  Maybe they will fail the getting around the bend test though if they brake on corners.

Edited 24 October, 20187 yr by Offski

41 minutes ago, olley said:

 

I see, well I wonder if the Euro 6 models 110 bhp have the same brakes as Euro 6 4x4 models?

 

Unless a vehicle is given more weight (or a substantially higher top speed) I can't see why it would require more powerful brakes as a result of tuning for BHP/Torque?

 

I'm no scientist, but braking power required would be based on mass, and towing effectively increases mass.  Braking power is presumably one of the factors that limit towing weight?

More powerful cars are able to go faster but still need to stop in the shortest possible distance, therefore they are fitted with larger brakes. Common across all makes.

A Formula 1 racing car weighs very little but look at the size of the discs and calipers on them.

4 minutes ago, Llanigraham said:

A Formula 1 racing car weighs very little but look at the dicks driving them

Lewis Hamilton? 

42 minutes ago, gumdrop said:

Caravans have their own brakes, unbraked trailers are lighter to allow car brakes to cope.

I love my Yeti it handles well and performs well belying its rather retro look and leaving

many in its dust. I think mine is an EU6 engine but I cannot even recall my registration number

so I could be wrong.

I'd forgotten that caravans have their own brakes!  

 

The Euro6 engine came in in 2015, plates '65 and later, though I suspect some earlier Euro5 cars may have been registered later so could mislead. Crucially one might not want a Euro5 if needing to drive into London regularly. Also Euro6 2WD Yetis are curently just £30 road fund licence.

13 minutes ago, Offski said:

230kg is the weight of 2 of me and a 23kg suitcase.

 

Diesels are heavier than petrols and DSG's heavier than manuals and AWD's heavier than FWD.

Why they have different revenue weights, emission figures etc and getting new Skoda WLTP Approved has been a problem for Skoda.

The Yeti came in different power outputs and drivetrains because it was being designed under the principal 'Horses for courses'.

All do twice the UK NSL though and can carry 5 people and luggage.

 

Regardless of a 2.0TDI having 140 ps or mapped to 170ps the mapping adds no weight, 

and the brakes used stopping it at 70 mph when 140ps do the same job when it has 170ps.

If someone drives more spirited, always on the brakes because they have an extra raging 30 ps then that is another story.

Not going to stop the car passing a MOT brake efficiency test.  Maybe they will fail the getting around the bend test though if they brake on corners.

 

Yes, prior to 2015 Yetis were available in an impressive range of engine types/power. I would like to have a bit more than the 110bhp, but mainly because I came from a Volvo which had a lot more oompf.  Reality, the 110bhp is enough for all normal driving.

Dont higher powered variants generally have higher load and tow ratings?

 

I'm fairly sure that changing from a basic S spec to a top of the range VRS model would involve a bit more than a software change.

Edited 24 October, 20187 yr by xman

17 minutes ago, Llanigraham said:

More powerful cars are able to go faster but still need to stop in the shortest possible distance, therefore they are fitted with larger brakes. Common across all makes.

A Formula 1 racing car weighs very little but look at the size of the discs and calipers on them.

 

Yes, with speed, mass increases and so more stopping power is required. Makes me want to go back to physics lessons ha ha

Edited 24 October, 20187 yr by olley

7 minutes ago, xman said:

Dont higher powered variants generally have higher load and tow ratings?

In the pre-2015 Yeti manual the braked max towing weights are a bit higher for the more powerful diesels. For unbraked they are all the same at a max of 750kg (I gather this is always a legal maximum).

Edited 24 October, 20187 yr by olley

When I first got my Yeti I felt the brakes were less than adequate. The fronts are the same size as one of my previous cars the Fabia Vrs at 288mm (the 110 is even smaller) which makes no sense when you look at the size and weights of the Fabia/Yeti.  I upgraded to the larger discs and now have confidence in the brakes. As I tow a lot both unbraked and braked trailers it was a no brainer. A 600kg unbraked trailer pushing you down a road is not fun if you cant stop it.

7 minutes ago, idleness said:

When I first got my Yeti I felt the brakes were less than adequate. The fronts are the same size as one of my previous cars the Fabia Vrs at 288mm (the 110 is even smaller) which makes no sense when you look at the size and weights of the Fabia/Yeti.  I upgraded to the larger discs and now have confidence in the brakes. As I tow a lot both unbraked and braked trailers it was a no brainer. A 600kg unbraked trailer pushing you down a road is not fun if you cant stop it.

 

I was wondering about drilled disks for more stopping power, but would it upset the balance of the ABS?

 

Incidentally, how do you get your Yeti up to 170 bhp - what chip?

My Alhambra 2.0TDI 150ps DSG has a Kerb Weight of 1,843 kg (about 300 kg more than the heaviest Yeti.) can seat 7 people, 

Max Revenue weight is 2,540 kg and it can tow 2,400 kg.

SEAT fitted the same 314mm front discs and 282mm rear to all the models, petrol 150 ps manual which is the lightest to the 184ps DSG which is the heaviest.

 

Drilled discs might be better in the wet and cool quicker, but we are talking a Yeti that has sold near 1 million globally during its production, 

so the brakes are what the brakes are and many have uprated discs pads, calipers, hoses and brake fluid.

Plenty in the Yeti Project section if of interested in what gets done.

 

Remaps, tuning boxes, bigger turbos and intercoolers, even engine transplants.

 

Just a little bit modded.....

 

 

Edited 24 October, 20187 yr by Offski