Fitting performance tyres to non-performance cars

Fitting performance tyres to non-performance cars

Author
Discussion

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
I’m a big fan of fitting decent tyres to even the most basic cars for the best drive and general safety.

However, is there much benefit to be had by fitting particularly sporty tyres to cars that aren’t set up to feel sporty? Or does that just reduce comfort and refinement with no tangible benefit in cars that aren’t particularly analogue or responsive behind the wheel?

I’m wondering about ditching the Avon ZV7s on my 2006 A6 Avant 4.2 - even though they have lots of tread left - as they are poorly reviewed and I imagine contribute to the car’s slightly vague steering at low speeds (though this could just be an A6 trait, as it’s much better above 30/40mph…).

As the tyres are 225/50/17s, the ones that stand out are:
Comfort-oriented: Goodyear EfficientGrip Performance 2
Sportier: Goodyear F1 Asymmetric 5/6
Sportier still: Bridgestone Potenza Sport

The F1 Asymmetric 5s seem to be the sensible choice and they work well on my other car, but intrigued by how much the Potenza Sports would add. My gut feel is that they wouldn’t suit the car very well…

Any thoughts?

Scrump

23,423 posts

173 months

Monday 31st January 2022
quotequote all
Fitted GY Eagle F1 Assy5 to my E class estate.
Not only is the grip improved (esp. in the wet) but it also rides more smoothly than on any of the previous non sporty tyres it had.

Panamax

6,301 posts

49 months

Monday 31st January 2022
quotequote all
RoVoFob said:
the car’s slightly vague steering at low speeds

Any thoughts?
If you have "variable power steering" on the car it's probably just greater assistance from the power steering system than at higher speeds.

Pica-Pica

15,210 posts

99 months

Monday 31st January 2022
quotequote all
I changed from 19” Pirelli zero, to 18” Goodyear EfficientGrips on my BMW F30 335d x-drive. I went for these for their recommended comfort and quietness. Pretty good comfort for run-flats. I have not been disappointed, and will probably replace with the same, unless I can get a decent all-season run-flat (I haven’t seen any for my car yet), and it mostly wet in the winter here.

Panamax

6,301 posts

49 months

Monday 31st January 2022
quotequote all
Pica-Pica said:
I changed from 19” Pirelli zero, to 18” Goodyear EfficientGrips on my BMW F30 335d x-drive.
Yup, easiest way to calm down a car with stupidly firm ride, although you'll probably notice a change in the handling if you try to get ambitious with the driving.

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
Panamax said:
If you have "variable power steering" on the car it's probably just greater assistance from the power steering system than at higher speeds.
I’m sure that’s the reason. Just imagine that decent tyres will counteract this somewhat by being more responsive than the Avons are.

E-bmw

11,072 posts

167 months

Monday 31st January 2022
quotequote all
As you say the Avons are fairly mediocre at best.

Personally, I would steer clear of the Bridgestones, either of the others are good.

It is likely worth a full alignment as that could highlight any issues with the chassis that can be cleared but as many have said before Audis aren't generally accepted as being the go to cars for steering, although I am sure there would be room for improvement.

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
Scrump said:
Fitted GY Eagle F1 Assy5 to my E class estate.
Not only is the grip improved (esp. in the wet) but it also rides more smoothly than on any of the previous non sporty tyres it had.
Good to hear. I’ve found Asymmetric 5s impressive on a smaller BMW and S60 T5. Waiting for the first reviews of the recently launched Asymmetric 6s now…

Which tyres did you have previously?

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
E-bmw said:
As you say the Avons are fairly mediocre at best.

Personally, I would steer clear of the Bridgestones, either of the others are good.

It is likely worth a full alignment as that could highlight any issues with the chassis that can be cleared but as many have said before Audis aren't generally accepted as being the go to cars for steering, although I am sure there would be room for improvement.
What’s the issue with the Bridgestones? I’ve normally thought of Bridgestone as a company that charges premium prices but doesn’t provide premium quality, but the Potenza Sports have been quite well reviewed…

Some issues with heavy wear have been mentioned, though, which puts me off fitting them to a 1805kg four-wheel-drive, V8 estate…

Planning gearbox and Quattro services imminently, plus new rear brakes and potentially tyres. Will get a proper alignment done if I change the tyres. There’s nothing wrong with the steering, though tyres that provide a little extra precision would make a positive difference, I’m sure.

CarCrazyDad

4,280 posts

50 months

Monday 31st January 2022
quotequote all
RoVoFob said:
I’m a big fan of fitting decent tyres to even the most basic cars for the best drive and general safety.

However, is there much benefit to be had by fitting particularly sporty tyres to cars that aren’t set up to feel sporty? Or does that just reduce comfort and refinement with no tangible benefit in cars that aren’t particularly analogue or responsive behind the wheel?

I’m wondering about ditching the Avon ZV7s on my 2006 A6 Avant 4.2 - even though they have lots of tread left - as they are poorly reviewed and I imagine contribute to the car’s slightly vague steering at low speeds (though this could just be an A6 trait, as it’s much better above 30/40mph…).

As the tyres are 225/50/17s, the ones that stand out are:
Comfort-oriented: Goodyear EfficientGrip Performance 2
Sportier: Goodyear F1 Asymmetric 5/6
Sportier still: Bridgestone Potenza Sport

The F1 Asymmetric 5s seem to be the sensible choice and they work well on my other car, but intrigued by how much the Potenza Sports would add. My gut feel is that they wouldn’t suit the car very well…

Any thoughts?
None of those tyres are what I would deem as "performance tyres"

They are simply good summer tyres

I would imagine tyres like the Goodyear Eagle F1 and Michelin equivalent are the best in wet compared to anything.

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
CarCrazyDad said:
None of those tyres are what I would deem as "performance tyres"

They are simply good summer tyres

I would imagine tyres like the Goodyear Eagle F1 and Michelin equivalent are the best in wet compared to anything.
Well, the latter two are some of the most performance-oriented tyres you can get in that size.

My point was mainly whether a tyre can be too sporty for a specific car. Short of going for a race compound on a Fiesta or semi slicks on a Range Rover, I’m not sure decent tyres can be too sporty for a car…

stevieturbo

17,770 posts

262 months

Monday 31st January 2022
quotequote all
Choose tyres for actual usage...not name.

GreenV8S

30,874 posts

299 months

Monday 31st January 2022
quotequote all
RoVoFob said:
I’m not sure decent tyres can be too sporty for a car…
If you're changing the tyre width or diameter that can have a very big effect on the handling characteristics and steering feedback and depending on the driver it may not be for the better.

Changing the sidewall height can have a big impact on comfort and handling.

Changing the tyre compound to increase grip will typically be at the cost of worse tyre wear.

These things are all compromises, and if you change the compromise to make it more 'sporty' (whatever that means to you) it will be worse off in some other respect.

Changing the tyres to try to improve the handling or performance sub 30 mph is nuts IMO. You should never expect to be in a situation where handling or performance at those speeds on public roads is an issue.

Scrump

23,423 posts

173 months

Monday 31st January 2022
quotequote all
RoVoFob said:
Scrump said:
Fitted GY Eagle F1 Assy5 to my E class estate.
Not only is the grip improved (esp. in the wet) but it also rides more smoothly than on any of the previous non sporty tyres it had.
Good to hear. I’ve found Asymmetric 5s impressive on a smaller BMW and S60 T5. Waiting for the first reviews of the recently launched Asymmetric 6s now…

Which tyres did you have previously?
On that particular car I have had uniroyal Rainsport 3 and Bridgestone Potenza

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
stevieturbo said:
Choose tyres for actual usage...not name.
I do.

Usage involves the suitability of specific tyres on specific cars, hence this thread.

RoVoFob

Original Poster:

1,459 posts

173 months

Monday 31st January 2022
quotequote all
GreenV8S said:
If you're changing the tyre width or diameter that can have a very big effect on the handling characteristics and steering feedback and depending on the driver it may not be for the better.

Changing the sidewall height can have a big impact on comfort and handling.

Changing the tyre compound to increase grip will typically be at the cost of worse tyre wear.

These things are all compromises, and if you change the compromise to make it more 'sporty' (whatever that means to you) it will be worse off in some other respect.

Changing the tyres to try to improve the handling or performance sub 30 mph is nuts IMO. You should never expect to be in a situation where handling or performance at those speeds on public roads is an issue.
Hadn’t thought about changing the width of the tyres, though 225mm tyres are unusually narrow for an 1805kg car. Sadly, I don’t think Audi used any wider 17s than that on the A6 and don’t want to modify the car or fit larger alloys.

As you say, it’s all a compromise. I think I’ll probably end up with Goodyear Asymmetric 6s or Michelin Pilot Sport 5s when they’re out, as the previous versions of those felt decently responsive while still being pretty comfy.

No one’s talking about testing the limits of tyres on the road at 30/40mph. I simply have crappy tyres fitted (that perform poorly for wet and dry handling and wet and dry braking) and want a set of more responsive tyres that give a greater feeling of precision - above and below that speed. What’s unreasonable about that?

E-bmw

11,072 posts

167 months

Tuesday 1st February 2022
quotequote all
RoVoFob said:
E-bmw said:
As you say the Avons are fairly mediocre at best.

Personally, I would steer clear of the Bridgestones, either of the others are good.

It is likely worth a full alignment as that could highlight any issues with the chassis that can be cleared but as many have said before Audis aren't generally accepted as being the go to cars for steering, although I am sure there would be room for improvement.
What’s the issue with the Bridgestones? I’ve normally thought of Bridgestone as a company that charges premium prices but doesn’t provide premium quality, but the Potenza Sports have been quite well reviewed…
Because of exactly what you say & I personally wouldn't want to pull the trigger on £1000 worth of tyres that (for the first time) could be what they think they are.

anxious_ant

2,626 posts

94 months

Tuesday 1st February 2022
quotequote all
I would've preferred something like CrossClimate all seasons but as my car (S90 AWD diesel) came with 20" rims most choices are performance tyres.

stevieturbo

17,770 posts

262 months

Tuesday 1st February 2022
quotequote all
RoVoFob said:
I do.

Usage involves the suitability of specific tyres on specific cars, hence this thread.
Weather conditions, road conditions, environment...none of which have been stated. All more important than what car.

GreenV8S

30,874 posts

299 months

Tuesday 1st February 2022
quotequote all
RoVoFob said:
No one’s talking about testing the limits of tyres on the road at 30/40mph. I simply have crappy tyres fitted (that perform poorly for wet and dry handling and wet and dry braking) and want a set of more responsive tyres that give a greater feeling of precision - above and below that speed. What’s unreasonable about that?
You wrote: "slightly vague steering at low speeds (though this could just be an A6 trait, as it’s much better above 30/40mph…)". That suggests to me you're trying to improve the lateral stiffness and/or steering feedback (depending on what 'feeling of precision' means to you) around the 30 - 40 mph speed range. Replacing tyres to try to achieve that seems nuts to me.