Anyone used 20/25mm spacers on rear???

[kneesparks]

Hi guys, I keep looking at the rear of my Williams and no matter how much I look the rear end is just too narrow. As in the rear wheels need to be closer to the arches like the front. Why didn't Renault widen the rear track as well as the front??
I'm going to add some wheel spacers around 20-25mm so the rear track looks wider. May help with lift off oversteer also? What do you all thing? AnyOne else done this???

[kneesparks]

Anyone??? Has no one else thought of this?

[16v_paddy]

I think the track on the williams is also wider at the rear over the valver

[MatBrown]

Only from the wider wheels.

[Evogone]

Coops runs spacers on the rear i think...

[lloydvalver]

i have thought about it a few times and the only issue i can see it having is a slight bit more stress on the wheel bearings other than that i think it is a good idea

[Geronimo]

The rear track isnt wider because the handling is related to the track ratio front to rear.

If you add 20 mm spacers to the back you will get more understeer.

It will also lighten the steering and reduce sharpness.

Renault obviously didnt want this effect, as its the antithesis of everything the Williams is.

[robi1000]

This is correct.

[16v_paddy]

Only from the wider wheels.

Pretty sure I read somewhere that Gaz (cliolord) actually measured a valver & willy rear beam & said the track width was wider on the willy beam

[chip]

Ive got 15mm spacers on the rear of mine, I think you will have to start cutting the arches if you run 25mm.

Saying that they promote understeer is kind of misleading, as although its sort of true, IMHO the standard bias with the williams widetrack is towards oversteer anyway (great for rallying but not so great on trackdays) so the slightly wider rear track brings it more towards neutral than towards understeer I find.

Try it and see though, not exactly a big investment required to find out if you like it or not.