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Discussion Starter · #1 ·
I am planning to get some 18's and i did'nt want the car to look like a 4x4, I wondered if anyone could tell me would my car look to high as i understand my Gti has a lower suspension as standard. Cheers

Dan
 

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As I understand it, for your car to look the same as it is now, every wheel size you go up, the suspension needs to come down 15mm, i.e 16"-17" etc.

It was only if you went for the santa monicas, they gave you 15mm lower springs, to compensate from going up from 16" alloys I think!
 

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As I understand it, for your car to look the
same as it is now, every wheel size you go up, the suspension needs to
come down 15mm, i.e 16"-17" etc.

It was only if you went for the santa monicas, they gave you 15mm
lower springs, to compensate from going up from 16" alloys I think!
If you were moving from the standard 16" wheels that come with a Bora
to 19s would that mean the suspension would need to be dropped 45mm at
a minimum?
 

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As I understand it, for your car to look the same as it is now, every wheel size you go up, the suspension needs to come down 15mm, i.e 16"-17" etc.

It was only if you went for the santa monicas, they gave you 15mm lower springs, to compensate from going up from 16" alloys I think!
So how do you explain this then, when the larger the alloy goes, usually the smaller the tyre profile becomes, thus keeping the wheel/tyre radius combination as near to standard as possible in order to help reduce speedo inefficiencies?? [:^)]
 

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As I understand it, standard golfs are on 16" alloys

with santa monicas, 17"s, they give you 15mm lowering springs.

Annis have 18"s, and they are 30mm lower.

a 18" wheel is 25mm larger than a 17" rim, tyre profile reduces from a 45mm tyre to a 40mm profile for a 18" wheel, which either side adds up to 10mm, so theres a 15mm difference between the 2, so thats why I assume the drop, as if thats what vw do with theior lowering aswell, it matches what I said. I think so anyway!!!!!!!!

If what you are sayign is the case, why when you put bigger alloys on, your car ends up looking like its on stilts?

thats the only reason I could make out, unless anyone else can help out?
 

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If what you are sayign is the case, why when you put bigger alloys on, your car ends up looking like its on stilts?
Any car will look like it's on stilts if the standard suspension is set too high, that's why we lower them in the 1st place!
 

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Have a look in the thread I made about my new Kei's, they're 18 and its a 1.4 un-lowered. Should be lowered some time next week though.
 

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Discussion Starter · #8 ·
I always thought that the gti's were a little lower than 1.4's etc. I suppose the best way is to try the wheels and see what it looks like. I have already been down the root of larger wheels on my escort before this and until i lowered it it looked awful. Thinking of getting ASA AR1's but still not quite sure as was never a great fan of coloured wheels.
 

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I have a 1.8T on 18's and it sits fine, no uprated suspension at all..... watch them things called bends though. [:p]
 

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I recently got 18" RS4s and i'm gonna lower it 30mm. However, I still think it looks OK without being lowered. Put the wheels on first and then you can decide for yourself.

Posted Image
 

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To give you an idea. Here are a before and after picture. I have fitted the FK 35mm HighTec Kit.

Before ( 4x4 look)

Posted Image


After (handles fantastic and great ride comfort)

Posted Image

Posted Image
 

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As I understand it, standard golfs are on 16" alloys GTi/V5/V6 yes - TDI/S/SE/SDI - no

with santa monicas, 17"s, they give you 15mm lowering springs That was an option pack, you could've had Santas without the sports suspension.

Annis have 18"s, and they are 30mm lower.That's because the Anniversary suspension was further developed for better handling, not looks.

a 18" wheel is 25mm larger than a 17" rim, tyre profile reduces from a 45mm tyre to a 40mm profile for a 18" wheel, which either side adds up to 10mm, so theres a 15mm difference between the 2, so thats why I assume the drop, as if thats what vw do with theior lowering aswell, it matches what I said. I think so anyway!!!!!!!!

If what you are sayign is the case, why when you put bigger alloys on, your car ends up looking like its on stilts? The gap in the wheelarch is the same, as the rolling radius of the wheel and tyre is the same (otherwise you'd have massive problems with acceleration and speedo readings) the 'look' of larger wheels and lower profile tyres simply changes the appearance of the gap.

thats the only reason I could make out, unless anyone else can help out?
If you want to understand the wheel tyre ratio differences, look here http://www.rochfordtyres.co.uk/tyrecalc.asp and try a few combinations - it will give you the rolling radius and the speed difference between them.

Don't get hung up on numbers - an extra 5mm isn't going to transform the look of the car although it could screw up the handling - to give an idea your tyres change more than 10mm as they wear down........

The feeling on many sites is that a drop on a MkIV of more than Anniversary ride height (no point in putting numbers -30mm lower than what?) will put the roll centre below ground and it's that relationship between Roll Centre and Centre of Gravity that retains/improves handling. If the wishbones aren't parallel to the ground (i.e. pointing up to the outside) then the roll centre is too low and your handling will be worse.
 

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On a more serious note, mina has santas, and I'm getting kw's fitted next week, but only going for a 40mm drop, as I'm not buying the arb.

SO, I was under the impression that if an AUQ came with santa monicas, it had 15mm lowering springs, but I do think its sits high, so is there any way of finding out which sorings I have?
 

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Yes, there's a very informative guide on Vortex - unfortunately I'm not at home so don't have the url to hand - it gives the colour codes for all the springs in the Golf range. Poundage and height is included (I think?) so it will enable you to identify yours. The other way to check is to study the codes on the build sticker(service book and spare wheel well) and work from there whether the sports code is printed.

It's highly likely that if yours came with Santas from new that it's got the factory fitted sports suspension. If that is the case then something like Eibachs or H&Rs would be your best bet to drop it a bit more.

HTH
 

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the dealer said it came with them as it was their demo car, but I dont trust dealers anyway! Kws are paid for now, so no changing them, I might be putting 19's on yet, havnt dedided what to go for yet, so the coilovers were the safe option.I can remember having that list, and it did have sports suspension, but I wasnt sure if the springs had a different code, and the 15mm drop is only the springs anyway, they dont change the shocks!

Thanks for the info anyway.
 

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Hi

There is a basic error in this argument/discussion......you have assumed the worng thing regarding tyre sizes:

Take for example 215/45/16........

The 215 bit relates to tyre width (in mm), the 16 bit relates to wheel size (in inch's), HOWEVER, the 45 bit in the middle is not a measurement as such - it is the depth of the sidewall as a %age of tyre width - i.e. in this example, the profile is 45% of the tyre width (215mm).

There is no correlation with height of the car/lowering to the tyre/wheel package - the ultimate aim with said package is to keep the rolling radius as close to the original spec as possible, with tyre sizes available on the market - otherwise you will upset gearing ratios.

How much you lower the car is entirely seperate - most Mk4's are lowered for cosmetic purposes - the most you can realistically lower them without ADVERSELY affecting handling is about 10-15mm. This is due to the angle of the lower wishbone - i.e. you do not want it pointing upwards (a little is not going to hurt). If it were to point upwards (towards the wheel), then you are effectively moving the centre of gravity below ground - this will enhance roll throughout corners.

If you were uprating suspension for performance, it is the coil and damper rates that need attention rather than the spring height.

HTH
Stu
 
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