Help me choose wheels

[PerryGunn]

Interesting that choice 4 is out front yet virtually matches the cars own grey paint colour :?
i think they would virtually "kill" the cars looks & look smaller than they would if a contrasting colour
The same wheels in matt black or high silver or hyper black would look great on the OPs car imo

Have to agree with this - you really need a contrast - as they stand, I'd prefer #1 but #4 in a different colour would probably look better on the car

 

[PerryGunn]

Sorry your on your own with this one, ask ten people you get ten different answers. You have to live with them trust your own decision.

Of course....

I often find that, if you can manage to narrow it down to two choices but can't make up your mind between them, just flip a coin to decide, if you feed vaguely flat or disappointed at the result you know that you really wanted the other choice....

 

[sars]

Sorry your on your own with this one, ask ten people you get ten different answers. You have to live with them trust your own decision.

Of course....

I often find that, if you can manage to narrow it down to two choices but can't make up your mind between them, just flip a coin to decide, if you feed vaguely flat or disappointed at the result you know that you really wanted the other choice....

so I'm not the only one that does that then

 

[enzed4]

Interesting that nobody has mentioned weight.

Surely you get the lightest and reduce unsprung weight.

If you're buying them for the track, yes. For every other application, weight would be down the list after fit and appearance. I don't think track use was mentioned, so we're voting on looks alone.
If the OP intends on tracking these, then it's a valid question.

 

[stevo///m3]

option 1.
Stevo

 

[PerryGunn]

I often find that, if you can manage to narrow it down to two choices but can't make up your mind between them, just flip a coin to decide, if you feed vaguely flat or disappointed at the result you know that you really wanted the other choice....

so I'm not the only one that does that then

I wondered about posting that... don't feel quite so mad now... :lol:

 

[sars]

I wondered about posting that... don't feel quite so mad now... :lol:

No I think most women in the western world employ this technique as a sure fire decision making process when making a purchase of clothes or shoes when you can't decide between two items.

I have now evolved past this basic concept and just purchase both

 

[Marlon]

I wondered about posting that... don't feel quite so mad now... :lol:

No I think most women in the western world employ this technique as a sure fire decision making process when making a purchase of clothes or shoes when you can't decide between two items.

I have now evolved past this basic concept and just purchase both

:rofl:

 

[Mister T]

Interesting that nobody has mentioned weight.

Surely you get the lightest and reduce unsprung weight.

They're both flow formed, so should be pretty light and almost as strong as forged wheels.

 

[Johnfm]

Interesting that nobody has mentioned weight.

Surely you get the lightest and reduce unsprung weight.

If you're buying them for the track, yes. For every other application, weight would be down the list after fit and appearance. I don't think track use was mentioned, so we're voting on looks alone.
If the OP intends on tracking these, then it's a valid question.

Not just for track. General dynamics improve. The 108 alloys are around 12.5kg each. An OZ superleggera about 8kg each. That's worth saving, track or street. But each to their own.

 

[mr wilks]

Interesting that nobody has mentioned weight.

Surely you get the lightest and reduce unsprung weight.

If you're buying them for the track, yes. For every other application, weight would be down the list after fit and appearance. I don't think track use was mentioned, so we're voting on looks alone.
If the OP intends on tracking these, then it's a valid question.

Not just for track. General dynamics improve. The 108 alloys are around 12.5kg each. An OZ superleggera about 8kg each. That's worth saving, track or street. But each to their own.

Could you not get the same effect by keeping the fuel level low or not having a passenger ?
Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

 

[PerryGunn]

Not just for track. General dynamics improve. The 108 alloys are around 12.5kg each. An OZ superleggera about 8kg each. That's worth saving, track or street. But each to their own.

Could you not get the same effect by keeping the fuel level low or not having a passenger ?
Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

Savings in unsprung mass is 'worth' more than savings in sprung mass - e.g. if the wheels are lower mass, they have less inertia, this allows the suspension to react faster to bumps etc. so the wheels have better contact with the road giving more grip and sharper steering. There's also an argument that reducing the rotational mass of the wheels reduces the gyroscopic effect of the wheels allowing them to change direction faster

 

[mr wilks]

Not just for track. General dynamics improve. The 108 alloys are around 12.5kg each. An OZ superleggera about 8kg each. That's worth saving, track or street. But each to their own.

Could you not get the same effect by keeping the fuel level low or not having a passenger ?
Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

Savings in unsprung mass is 'worth' more than savings in sprung mass - e.g. if the wheels are lower mass, they have less inertia, this allows the suspension to react faster to bumps etc. so the wheels have better contact with the road giving more grip and sharper steering. There's also an argument that reducing the rotational mass of the wheels reduces the gyroscopic effect of the wheels allowing them to change direction faster

Yea but what % of car owners would actually realise any benefit ?
I had a 964 & the wheelbolts were unbelievably light , titanium i think but if they were standard steel would i have felt any difference ?

 

[PerryGunn]

Could you not get the same effect by keeping the fuel level low or not having a passenger ?
Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

Savings in unsprung mass is 'worth' more than savings in sprung mass - e.g. if the wheels are lower mass, they have less inertia, this allows the suspension to react faster to bumps etc. so the wheels have better contact with the road giving more grip and sharper steering. There's also an argument that reducing the rotational mass of the wheels reduces the gyroscopic effect of the wheels allowing them to change direction faster

Yea but what % of car owners would actually realise any benefit ?
I had a 964 & the wheelbolts were unbelievably light , titanium i think but if they were standard steel would i have felt any difference ?

I was really replying to your 'Could you not get the same effect by keeping the fuel level low or not having a passenger?' question, but I think you're right that the majority of people are unlikely to notice the difference...

 

[enzed4]

Interesting that nobody has mentioned weight.

Surely you get the lightest and reduce unsprung weight.

If you're buying them for the track, yes. For every other application, weight would be down the list after fit and appearance. I don't think track use was mentioned, so we're voting on looks alone.
If the OP intends on tracking these, then it's a valid question.

Not just for track. General dynamics improve. The 108 alloys are around 12.5kg each. An OZ superleggera about 8kg each. That's worth saving, track or street. But each to their own.

Is a saving of 18Kg really worth considering, when you're just tooling around town, or racing that hatchback to the next set of lights? I just leave the wife at home - problem solved :rofl:
Yes, I am trolling a bit - sorry. As you say, each to their own. Can you clarify what you mean by 'general dynamics'? Thanks.
Edit: Never mind, I see PerryGunn has given a good explanation.

 

[markeg]

Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

for some of us (me included) weightwatchers would be more beneficial than lighter wheels

 

[mr wilks]

Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

for some of us (me included) weightwatchers would be more beneficial than lighter wheels

 

[Johnfm]

Could you not get the same effect by keeping the fuel level low or not having a passenger ?
Some folks go off on one about weight saving with wheels yet it has almost zero effect for 99.9% of drivers :wink:

Savings in unsprung mass is 'worth' more than savings in sprung mass - e.g. if the wheels are lower mass, they have less inertia, this allows the suspension to react faster to bumps etc. so the wheels have better contact with the road giving more grip and sharper steering. There's also an argument that reducing the rotational mass of the wheels reduces the gyroscopic effect of the wheels allowing them to change direction faster

Yea but what % of car owners would actually realise any benefit ?
I had a 964 & the wheelbolts were unbelievably light , titanium i think but if they were standard steel would i have felt any difference ?

Are you seriously comparing a wheel weight saving of 30-40% with the weight of wheel bolts?

Anyway, fair enough if your interest is wholly cosmetic. Z4 is a great looking car - which is why I want one. They just need a few small tweaks to improve the handling.

 

[mr wilks]

Are you seriously comparing a wheel weight saving of 30-40% with the weight of wheel bolts?

Anyway, fair enough if your interest is wholly cosmetic. Z4 is a great looking car - which is why I want one. They just need a few small tweaks to improve the handling.

No I'm not , I'm merely trying to point out at what stage do you stop looking for weight save ? & do you actually believe you will notice a difference in handling with the car just by choosing lighter wheels if used as 99% of cars are ?
Maybe you're planning to push your Z into that 1% so fair dos , at least you won't need to strip out the back seats

 

[sars]

Are you seriously comparing a wheel weight saving of 30-40% with the weight of wheel bolts?

Anyway, fair enough if your interest is wholly cosmetic. Z4 is a great looking car - which is why I want one. They just need a few small tweaks to improve the handling.

No I'm not , I'm merely trying to point out at what stage do you stop looking for weight save ? & do you actually believe you will notice a difference in handling with the car just by choosing lighter wheels if used as 99% of cars are ?
Maybe you're planning to push your Z into that 1% so fair dos , at least you won't need to strip out the back seats

Not criticising you per se, but when I purchased the e89 the forum was full of peeps arguing that it had been made to heavy and now some six years later we are discussing that you won't notice if you make it lighter

Well sorry guys lighter is better, no question, regardless if the driver notices the difference

oh and a tank of fuel in the zed (55 litres) has a mass of about 40 kg