Front and rear ride height

DanGB

Who need's a Diesel....
Feb 12, 2006
3,772
2
London
Hi all, just fiddling with the height of the coiolvers at the moment.
I was told the rear should be quite a bit higher than the front for handling reasons... is this true and how much higher as an indication?

Cheers,
Dan
 

jonjay

50 Years of 911
Jun 27, 2005
5,843
1
Essex
I have never heard of this to be honest. Usually the front is meant to be lower as that gives you better turn in.
 

Fishy

Active Member
May 16, 2005
1,080
4
I'd say take it to someone who knows what they are doing. Screw the settings up and you run nasty risks.

Fish
 

m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
33
Clanfield, UK
get it corner weighted

it's the only way to be sure

Revo Kev had his Ibiza done - was low at the rear, but higher at the front, but got something like 52/48 weight distribution.

low front, high back end would just be plain retarded. unless you like regular trips to the bodyshop
 

stewbie55

No longer a Newbie
Aug 12, 2006
427
0
When I had my FSD/eibach setup the car looked a little high at the back compared to the front, and handling wise there was plenty of turn in, but a rather skitish rear end.
Since fitting coilovers I kept the front the same height but dropped the rear another 20mm or so. The rear end feels more planted now at the expense of less turn in with perhaps a tendency to mild understeer, but the car feels more balanced and predictable on the whole and I'm a lot happier with this setup.

Not sure if this is entirely due to altered weight distribution or better damping etc, plus I had ARB's fitted at the same time??
Anyway I'm still to fit uprated front wishbone bushes (should reduce understeer?) and rear wheel spacers (increase rear end stability further?), but I may re-tweak heights after this to re-tune the balance if necessary.
 

DanGB

Who need's a Diesel....
Feb 12, 2006
3,772
2
London
Hmm.. its all getting technical now :confused:

If you look at the picture, the back is higher, plus the front has been lowered more since that picture. You will notice quite a slope along the bottom of the car....

It has been noticed by others and myself the back end is quite twitchy when going round the track on the bends. If is also fitted with front and rear H&R Stiff type ARB's.

carslope.jpg


EDIT: why is the image tag disabled in this forum?
 
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m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
33
Clanfield, UK
get it corner weighted - it's the only way.

take it to a motorsport prep place, who can get the balance right (that's what coilovers are for), then align is accurately

but it will make it handle better, even if it doesn't "look" right

so your question is this.... are you all talk, and no trousers - or do you actually want the car to handle better.
 

DanGB

Who need's a Diesel....
Feb 12, 2006
3,772
2
London
get it corner weighted - it's the only way.

take it to a motorsport prep place, who can get the balance right (that's what coilovers are for), then align is accurately

but it will make it handle better, even if it doesn't "look" right

so your question is this.... are you all talk, and no trousers - or do you actually want the car to handle better.

Thanks Mark.

I did not realise adjusting the height slightly made alot of difference!

Im all for handling though, so i'll have a look into getting the weighting done.
 

Fishy

Active Member
May 16, 2005
1,080
4
Might be worth speaking with some of the teams when you go to Brands. Better to get those who know what the Leon can handle like to get it sorted.

Fish
 

m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
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Clanfield, UK
except that the touring cars have adjustable camber/castor etc, and he doesn't

maybe motorbase have the facilities though....
 

ian_cupra

Guest
i was told by my uncle who used to work as a mechanic on touring cars years ago that rear should be slighty higher than front for better turn in and better stability. thats how mines set up now too :)
 

m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
33
Clanfield, UK
how does your uncle know what the weight distribution is of 'all' cars?

as I said - until you know what the weight distribution is, you can't adjust it to make it better.

better turn in might be ace, but if you have no weight over the rear & mid corner you're looking in your rear view mirror to see where you're going is not the ideal setup.
 

bizzaboy

Guest
My previous car (which had Coilovers), I'd take it to a specialised Tuning company quite regularly. I was advised the car should be a fraction lower at the front end, with the rear slightly higher. All to do with correct handling and weight distribution. Not just for cornering, but also when you are applying the power and braking (especially for front wheel drive cars/engine up front!).

Want the car to handle and ride at its optimum, suspension geometry should be configured with the front end riding slightly lower, however want the car to look "cool" with a loss of handling performance, lower the rear end more extensively.
 
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m0rk

sarcasm comes free
Staff member
May 19, 2001
27,787
33
Clanfield, UK
corner weighting - it's the only way.

not just arbitrarily 'lower' at the front.

might work for your previous car - but I can tell you - your Ibiza IS nose heavy - so wants the weight 'backwards'
 
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