Comfort oriented lowering springs

[Diesel_vert]

The overall radius of 205/50s is 4mm more than stock.

You have to consider the static radius, which takes into account the deflection under load, because a tyre is deformable and not perfectly round. The amount of deflection mostly varies depends on the aspect ratio.

... also the wider patch might further increase drag and decrease efficiency.

And yet, you fit 205/50 R16 tyres and 16" wheels?

...

There's no such thing as a free lunch.

-Fitting bigger wheels with appropriate sized tyres usually means less compliance, more unsprung weight and more fuel consumption.
-Fitting bigger tyres to compensate for reduced compliance leads to additional increases in ride height, unsprung weight and fuel consumption.
-Fitting bigger wheels and tyres that weigh the same as the original setup, or less, costs more $$$.
-Fitting suspension components that either lowers the vehicle or improves compliance also costs $$$.
-Fitting suspension components that can do both (if possible) will cost you even more $$$.
-Inconvenience is the price you pay for aesthetics, though that too can be rectified with $$$.
Etc.

As far as I can see, the most effective solution is to eliminate the cause (remove the big & heavy tyres and wheels) rather than solve all the issues it's creating.

Alternatively, just put up with the ride height and keep the compliance, or lower the vehicle and live with the ride quality. You can always do both (probably?) but that would require $$$.

[himanshu_j]

You have to consider the static radius, which takes into account the deflection under load, because a tyre is deformable and not perfectly round. The amount of deflection mostly varies depends on the aspect ratio.



And yet, you fit 205/50 R16 tyres and 16" wheels?

...

There's no such thing as a free lunch.

-Fitting bigger wheels with appropriate sized tyres usually means less compliance, more unsprung weight and more fuel consumption.
-Fitting bigger tyres to compensate for reduced compliance leads to additional increases in ride height, unsprung weight and fuel consumption.
-Fitting bigger wheels and tyres that weigh the same as the original setup, or less, costs more $$$.
-Fitting suspension components that either lowers the vehicle or improves compliance also costs $$$.
-Fitting suspension components that can do both (if possible) will cost you even more $$$.
-Inconvenience is the price you pay for aesthetics, though that too can be rectified with $$$.
Etc.

As far as I can see, the most effective solution is to eliminate the cause (remove the big & heavy tyres and wheels) rather than solve all the issues it's creating.

Alternatively, just put up with the ride height and keep the compliance, or lower the vehicle and live with the ride quality. You can always do both (probably?) but that would require $$$.

The ideal upsize would be 215/45 R16 but tires aren't available in India in that spec due to strict ISI regulations, they can be imported however but cost would be prohibitive. I am not all that hassled by the decrease in efficiency as my daily drive is hardly 10-15km and the 77kW motor can easily put up with the increased drag. If I am right, the 77kW is also sold with 215/40 R17 on Boa Vista's as an option.

Polo's sold here have ground clearance of 168mm, plenty high in my opinion and with the new tires it sits slighty higher still which is all I want to rectify. Coilovers are definitely not an option as they cost $$$ which I being a student can't afford and honestly, the impact on ride quality is unquestionable something I can't do with on Indian roads. With 205/50s I have a sidewall height of 4.03", any lesser and I risk ride quality, premature rattles and suspension wear.

Since my car weighs 1090kg which is 45kg higher than a 1.2 and 55kg lighter than a 1.2TDI, I am confused whether its safe to go for the springs from a 1.2TSI.

Also, does any one have a clue of the ground clearance of a 1.2TSI with and without sports pack? I can't seem it find it in the brochure off the VW AUS website.

[himanshu_j]

Hi again everyone,

Since my 1.6s kerb weight lies somewhere between the 1.2TSi and the 1.2TSi DSGs, would it be safe to go ahead with springs from the sports pack?

[Gusman]

Hi again everyone,

Since my 1.6s kerb weight lies somewhere between the 1.2TSi and the 1.2TSi DSGs, would it be safe to go ahead with springs from the sports pack?

THe 1.2TSI DSG here in Oz weighs 1088kg, so I think you'll be fine. I believe ground clearance for a standard 1.2TSI here is 163mm, sports pack drops it by 15mm.

[himanshu_j]

THe 1.2TSI DSG here in Oz weighs 1088kg, so I think you'll be fine. I believe ground clearance for a standard 1.2TSI here is 163mm, sports pack drops it by 15mm.

Thank you so much Gusman. My polo weighs 1095kg and since it's a petrol motor, I don't expect it to be as heavy as the 1.6TDi or the GTi. I was having a hard time finding out stock ground clearance for AUS Polos. Our Polos too have a GC of 163mm.

Just hope member JexL is willing to sell his set to me.

[kawabanga]

Just installed on my GTI the Eibach Pro Kit springs: I can say that comfort is very similar than before...

I was worried about rebound with original shock absorbers, but it's not so much evident,being the springs thought also for TDI version of the Polo, so with a lower rebound breaking
...
More reactive and fast on cornering, I like it very much!

Here's a pic with 10mm wheel spacers: