How low can i go??

[tom_bish]

Im running 16" softstars with 45s on my gsi...how low can i go without causin problems with the arches? Also how will dropping the car affect the handling?? :confused:

[Mike]

Lowering car = lower centre of gravity thus creating less body roll but more grip through corners = better handling :thumb:

[Matt2107]

35mm???

[Mike]

id say 45, but there again, my old SR had 16's with 195/45's lowered 40mm and was completely fine. Even with a car full???

[General Baxter]

you can go aslow as you want!

120mm if you have the money to roll arches and adjust camber just do it lol

[scott.parker]

Well on AVO's using adjustable top monunts i have mine lowerd 80mm front 90+rear. the only problem you get is at low speeeds on full lock round tight corners or roundbouts the front tyres catch the wing,so i would only drop it as low as it go's beofre that point,say 70mm front 80mm rear.

Scott

[TommySR]

ive got Softstars and 195/45/16s at the min on a 60mm drop with arches rolled and have had no trouble or scrubbing at all

[tom_bish]

Cheers lads i think ill drop it 60mm then as im only looking to use a spring kit at the mo and thats the lowest ive seen...will be upgrading to coilovers in a couple months when the car comes off the road 4 a rebuild :thumb:

[craig green]

Lowering car = lower centre of gravity thus creating less body roll but more grip through corners = better handling :thumb:

Thats not true as such.

Side effects of being too low are driveshaft delection angles & bump steer.

[Mike]

Thats not true as such.

Side effects of being too low are driveshaft delection angles & bump steer.

Yeah but wouldnt that be if the car is excessivly low? like 90mm for instance????:confused:

[loggyboy]

See edited poste below - pc messed up!!

[Lee]

IMO 45mm drop for perfect handling. mine and dars are only cranked down about that amount, any more and it does actually start degrading the handling.

Drop it on its **** if your only doing it for show lol

[scott.parker]

Theres no fixed amount on how much u can lower before you cause issues.
Theres to may varibles to say for sure - not only are t

Not true,iirc you cant go any lower then 120mm on rear for two reasons
1 inner arch bottoms out
2 exhaust bottoms out on underside of car.

i might be wrong so dont quote me on this.

Scott

[loggyboy]

Theres no fixed way to work out how low you can go - every car is different.
Not only are there manufacturing tollerance (such as beam position, arch /panel lines etc) but the condition of the beam bushes can cause rubbing.
I lowered my old sri 60mm using 195 45 15s on a 6inch wide rim with 49mm offset and even after trimming my arches down, under heavy load id get a little rubbing - however i know sum1 who lowered his 60mm using 195 40 16s (again 6 inch rim, 49mm offset) and didnt trim his arches at all, and got no rubbing!

its a suck it and see situation - just stick to 6 inch wide rims with 49mm offset and your on the right track.

[loggyboy]

of course your right in saying there are limits - i was trying to say that there is no fixed limit - but if you want to go mad like a 120mm drop then space framing and routing of the exhaust needs to be address (ie pepe)

http://forums.roybacer.net/uploads/1149867850/gallery_172_50_1151751779.jpg

http://forums.roybacer.net/uploads/1149867850/gallery_172_50_1152369562.jpg

[Crazy Ry Ry]

I sure i heard somewhere tell me if im wrong but a 35mm drop is perfect for handling ?
:confused:

[Mike]

that first pic looks like a photoshop?? lol

[Matt2107]

Is that a side exit exhaust in the 1st pic or am I blind?

[loggyboy]

No photo shopping - pepe is a legend and all real.

yes, the exhast has been moved so it doesnt clash with the rear beam - the same princple can be seen on FluShSiMoNs car
http://forums.roybacer.net/index.php?showforum=35

[loggyboy]

I sure i heard somewhere tell me if im wrong but a 35mm drop is perfect for handling ?
:confused:

Its completely dependent on the rest of the spec and what the car is to be used for. - the best handling car will come from one with a low centre of gravity (ie the elise/caterhams) but as stated above - if the rest of the car isnt designed to be run low - then it can cause other problems. suspension set up is more important than ride height when it comes to handling (ie damper bounce and rebound settings, spring rates, suspension geometry etc)

[Mike]

No photo shopping - pepe is a legend and all real

Pepe was a name given to a) a sierra cos from back in the bay, the first one to crack 400bhp IIRC and b) and 80's bird IIRC :thumb:

[loggyboy]

not exactly sure of its orgins as it dates back to before i was an RBer - but its 'pepe the mule'

[Nova_Houch7]

I wanna get some 16's soon instead of my 17's, and lower my car more than it is (60mm) wat do u do to adjust camber, does this have any major affects?

L

[scott.parker]

Could not be ****d to read through all that stupid **** writing on RB:roll:

Camber,well there's a few wys to alter it,you can get adjustments in the shocks where the shock fixes to you hub(normaly a oval shape hole) and there is also adjustable top mounts there more for caster,but it can help on camber as i got mine for that.

If you fit things like this you can either increas or decrease caster/camber for improvment of grip on track,or to prevent tyre wear.

Pic of my top mounts with sperical bearing.
http://putfile.com/pic.php?pic=main/7/19408244018.jpg&s=f10

(you only normaly use top adjustable mounts with coilovers)

Scott

[loggyboy]

Camber can be adjusted to a very basic degree by loosening the 2x19mm bolts at the base of the front struts.
However if u want more adjustment u will need to slot one of the holes, but its diffucult to get it set up without proper geometry measuring equipment.

[Nova_Houch7]

Ahhh ok thanks matey

L

[loggyboy]

Could not be ****d to read through all that stupid **** writing on RB:roll:
Ignore the writing and marvel at the pictures!

[scott.parker]

How could i,it was hurting my eyes to try to understand what the hell he was posting..:confused:

[krobinson]

I've been looking at pics of Pepe since 2000. Its a low legend, but he really needs to get it to a show and prove some people wrong.

Its not a legend until it can prove what everyone assumes it can do.

And i'm not slating it, i love that car!

Keith

[loggyboy]

yes 5 years in the making is a little excessive lol