RIP Diesel?

vanpeebles · 12 Apr 2019 at 13:38

Big wheels with normal tyres are fine, it’s bad when they have those super thin low profiles.

[TW]Fox · 12 Apr 2019 at 13:46

Nasher said:
But most of the time they are on some lardy diesel SUV in this country.

How is that anything to do with the engine? The petrol version of the same car will have the same wheel options..

Simon · 12 Apr 2019 at 14:10

Comedy. When have big wheels ever been about going off road.

Pretty obvious that big wheels are mainly a cosmetic thing. (Some cars need big wheels because big brakes).

Diddums · 12 Apr 2019 at 14:18

Wtf has wheel size got to do with anything?

Amp34 · 12 Apr 2019 at 16:00

Simon said:
Comedy. When have big wheels ever been about going off road.

Pretty obvious that big wheels are mainly a cosmetic thing. (Some cars need big wheels because big brakes).

Why do you think big wheels were put on 4x4s in the first place? It’s about the only way to get real ground clearance increases.

[TW]Fox · 12 Apr 2019 at 16:01

Amp34 said:
Why do you think big wheels were put on 4x4s in the first place? It’s about the only way to get real ground clearance increases.

You achieve the same thing with smaller wheels and higher profile tyres though?

Jonnycoupe · 12 Apr 2019 at 16:12

Amp34 said:
Why do you think big wheels were put on 4x4s in the first place? It’s about the only way to get real ground clearance increases.

It’s not strictly true. The bigger profile tyres means the wheels don’t get that much bigger. Tyres come in families of the typical max diameter.

Rroff · 12 Apr 2019 at 16:19

Am I missing something? myself and a neighbour have pickups with roughly the same size wheels/tyres but his has a suspension lift kit (and snorkel) as he actually uses it off road, etc. so vastly different clearance with the same size tyres.

Simon · 12 Apr 2019 at 16:21

Amp34 said:
Why do you think big wheels were put on 4x4s in the first place? It’s about the only way to get real ground clearance increases.

I’m sure we got here by talking about Audi diesels with big wheels vs petrol cars. Quite bizarre

Jonnycoupe · 12 Apr 2019 at 16:30

Rroff said:
Am I missing something? myself and a neighbour have pickups with roughly the same size wheels/tyres but his has a suspension lift kit (and snorkel) as he actually uses it off road, etc. so vastly different clearance with the same size tyres.

Indeed the car and suspension is design around a totally different wheel centre to body relationship.

Nasher has taken us off thread as usual whilstrying to understand the balance a large wheeled diesel SUV offers people.

cuke2u · 12 Apr 2019 at 17:21

Back on topic, it has been announced that the S6 & 7will be diesel powered with a electric compressor...

jpaul · 12 Apr 2019 at 17:29

The dpf equivalent, petrol particulate filters, seem to be cheap in comparison too - anyone testify to that.

( rubber production has some environmental impact ... so maybe big wheels/tyres are to be deprecated too.)

Jonnycoupe · 12 Apr 2019 at 17:58

cuke2u said:
Back on topic, it has been announced that the S6 & 7will be diesel powered with a electric compressor...

Keep up with the topic then

Amp34 · 12 Apr 2019 at 19:13

Jonnycoupe said:
It’s not strictly true. The bigger profile tyres means the wheels don’t get that much bigger. Tyres come in families of the typical max diameter.

Were you meant to reply to [TW]Fox?

Rroff said:
Am I missing something? myself and a neighbour have pickups with roughly the same size wheels/tyres but his has a suspension lift kit (and snorkel) as he actually uses it off road, etc. so vastly different clearance with the same size tyres.

That’s a way of lifting the body and frame, but especially with solid axle (rather than IFS), it doesn’t actually increase ground clearance. Ground clearance is usually measured from the axle/diff, which is usually the lowest point on the vehicle. Sticking 35” tyres on a vehicle that had 32” inch tyres means you push the whole axle assembly up 1.5”. A suspension lift kit helps with approach, departure and break over angles, but doesn’t actually “lift” the vehicle itself.

Anyway, diesels!

Rroff · 12 Apr 2019 at 19:16

Amp34 said:
That’s a way of lifting the body and frame, but especially with solid axle (rather than IFS), it doesn’t actually increase ground clearance. Ground clearance is usually measured from the axle/diff, which is usually the lowest point on the vehicle. Sticking 35” tyres on a vehicle that had 32” inch tyres means you push the whole axle assembly up 1.5”. A suspension lift kit helps with approach, departure and break over angles, but doesn’t actually “lift” the vehicle itself.

Anyway, diesels!

LOL I'd completely forgot about the axel - though what my neighbour has had done is more than just lift the body but I dunno details.

Jasoncmor · 12 Apr 2019 at 19:23

I thought the big manufacturers would do something about the diesel cars, yet recently i've seen brand new audis with 3.5l upto 5l diesel engines... in their hatchback & saloon models!

[TW]Fox · 12 Apr 2019 at 19:33

Jasoncmor said:
I thought the big manufacturers would do something about the diesel cars, yet recently i've seen brand new audis with 3.5l upto 5l diesel engines... in their hatchback & saloon models!

The Audi 50 TDI is a 3 litre. The 35 is a 1.6 litre...

Jasoncmor · 12 Apr 2019 at 19:39

[TW]Fox said:
The Audi 50 TDI is a 3 litre. The 35 is a 1.6 litre...

Well this is awkward lol
Looking at the cars badge, its almost advertised as the engine size.
Learn something new everyday

[TW]Fox · 12 Apr 2019 at 19:39

It's very daft and confusing isn't it

Jasoncmor · 12 Apr 2019 at 19:53

[TW]Fox said:
It's very daft and confusing isn't it

Yes, because usually that's what the numbers mean haha