17" wheels on ED30?

[RedRobin]

DSG has different diameter mounts to Manual. So I'm told.

....Yup, I believe so - 50 and 55 mm.

[Teutonic_Tamer]

As RR says .. don't expect a big difference in the ride.  I have also driven a a GTi  with both 17"'s and 18"s,   and agree with RR comments.  The tyre brand nearly made as big a difference as the size of wheel (to the ride).  What tyres are you currently on ?

Agreed, to an extent.  But actually, the tyre can have a major factor in ride comfort.  ContiSportContact2 and Dunlops have a very harsh ride, whereas Michelins are renown for their much softer ride comfort.

[Teutonic_Tamer]

....

Are the Eibach coilovers adjustable?

Fixed damping, but adjustable height and spring rate.

Huh - than can't be so.  The spring rate is determined during manufacture, and altering the adjusters merely alters the preload on the spring, and therefore the ride height.  However, if the spring has variabl pitch coils, then the "apparent" rate may rise as the spring compresses.  Sounds like someone has been telling you porkies! 

[Teutonic_Tamer]

....

But why would the springs be different for a DSG car? - If it's weight related, then there's a difference between the 3-door and 5-door versions.

They shouldn't.  The difference between the manual gearbox and the DSG box is minimal - sommat like 30kgs.  However, the difference in weight between a petrol engine and a diesel engine is quite substantial - often around 80-100kgs for a 4pot.

Therefore, if it says TDI on the box, it won't be suitable for the GTI, DSG or no DSG! 

[Teutonic_Tamer]

....

But why would the springs be different for a DSG car? - If it's weight related, then there's a difference between the 3-door and 5-door versions.

well, at a guess and i'm no expert they either put a different spring on the DSG because the weight is aimed more towards the front of the car hence needing a different spring to allow for this so the car can sit right as well as handle correctly, or they have a slightly different strut on DSG cars (although i doubt it)

Nope.  DSG and manual springs are/should be identical (based on the plated load of the front axle) - and the struts will be physically identical too.

[Teutonic_Tamer]

....

But why would the springs be different for a DSG car? - If it's weight related, then there's a difference between the 3-door and 5-door versions.

well, at a guess and i'm no expert they either put a different spring on the DSG because the weight is aimed more towards the front of the car hence needing a different spring to allow for this so the car can sit right as well as handle correctly, or they have a slightly different strut on DSG cars (although i doubt it)

DSG has different diameter mounts to Manual. So I'm told.

Nope.  The physical dimensions of the struts are identical.  It is the driveshafts which are different, and these are not part of the suspension!

[182_blue]

well TT you need to tell Eibach that

[joesgti]

....

....Robin

whats with the .... everytime you post, lol 

[Teutonic_Tamer]

well TT you need to tell Eibach that

So, why do Eibach have different part numbers for the TDI and the GTI? 

Any automotive engineer will tell you that the plated limit, ie, the Type Approval axle weight limits are one of the primary reasons which determine the spring rate.  And the Golf TDI has a considerably higher front axle loading than a GTI. 

[182_blue]

i have no idea, it was me who said that he had the wrong springs to start with, its Eibach thats told RR that the tdi ones are fine

well TT you need to tell Eibach that

So, why do Eibach have different part numbers for the TDI and the GTI? 

Any automotive engineer will tell you that the plated limit, ie, the Type Approval axle weight limits are one of the primary reasons which determine the spring rate.  And the Golf TDI has a considerably higher front axle loading than a GTI.