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GEO Question

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Old Jan 26, 2011 | 08:01 AM
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I had my geo checked at my local garage yesterday and reset back to the settings WIM put on 18 months ago - pretty much everything had drifted and needed tweaking.

Anyway, having compared the final read out from yesterday's session against the WIM settings, I now have 1 degree of toe-in on the rear versus WIM's 2 degrees.

Sorry for my lack of technical knowledge, but what effect will the reduced toe have (other than being a little kinder on my tyres I presume)?

Cheers,
FB
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Old Jan 26, 2011 | 08:32 AM
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You will see reduced tyre wear.

The car will change direction quicker but will also be more lively at the rear.
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Old Jan 26, 2011 | 09:32 AM
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Less stability under heavy braking too.
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Old Jan 26, 2011 | 01:30 PM
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Thanks folks. Is a degree going to be noticable - I do drive the car pretty hard?......

I don't mind the rear end being a bit lively as long as I can feel it - I'd rather have feel and feedback than absolute grip. So, will the difference help me feel the back end getting twitchy, or not?

Thanks again.........
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Old Jan 26, 2011 | 02:02 PM
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Everyone like different style of car behaviour, there is no one ultimate fast road setup to suit everyone.

Take it out for a good drive and if you think you are happy with the current setup then you don’t need to worry about what other setup people have. If you think the car is lack of feedback then go back to the place and ask them for a different setup.

When we setup a car for customer we always ask what sort of condition the car mainly use for and what sort of driving style, how you want the car behave before we put in the setting.

So don’t worry about what others setup people have, as long as you are happy with how the car drive now then is fine.
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Old Jan 26, 2011 | 11:48 PM
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HI Fatbloke,

This provides a fairly basic but understandable explanation...

click here

HTH...
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Old Jan 27, 2011 | 01:44 AM
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Originally Posted by Fatbloke,Jan 26 2011, 10:30 PM
Thanks folks. Is a degree going to be noticable - I do drive the car pretty hard?......

I don't mind the rear end being a bit lively as long as I can feel it - I'd rather have feel and feedback than absolute grip. So, will the difference help me feel the back end getting twitchy, or not?

Thanks again.........
Yes.

I think you can 'feel' the impending breakaway starting better, whereas too much toe-in & it tends to go with more of a snap. Also, the car has a lot more throttle adjustability to corners, which is far better than sawing at the wheel; a slight lift & reapply turns it in & removes understeer, even at moderate speeds.

The compliance bushes in the RWS mean that one keeps toe-in under heavy braking - minimal castor has a much bigger effect on braking stability (one ought to be braking in a straight line, after all!). Although I don't like much caster either. So unless you've really underdone it, rear toe-in oughtn't affect that too much.

Obviously, for me it's critical to run wheels of the correct offset*. But I am always impressed by Honda's braking stability, in spite of my 'low' settings. And that's why they are designed that way.

The only way to find out is to try it; hold the wheel lightly & correctly & if it steps out, return it to straight ahead & 'balance' the throttle so it's neither accelerating or decelerating on a road you know well. After a while, you might find you rather like it!



















*Having visions of the three brass hellaflush monkeys going "la-la-la not listening..." as I type this.
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Old Jan 27, 2011 | 02:37 AM
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If you think it's critical to run standard offsets, you must be blind to the benefits of a wider track.

Fatbloke - Dixon gave you the best advice here, drive it and see how it feels to you. I only run 1.4mm toe in on the rear when standard is closer to 3mm toe in. I was sceptical to begin with but it drives and handles well and isn't twitchy even in the wet
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Old Jan 27, 2011 | 02:41 AM
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Originally Posted by Nick Graves,Jan 27 2011, 10:44 AM
Obviously, for me it's critical to run wheels of the correct offset*. But I am always impressed by Honda's braking stability, in spite of my 'low' settings. And that's why they are designed that way.
Nick, why do you think this matters please? As always, I am interested to know.
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Old Jan 27, 2011 | 02:43 AM
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Originally Posted by Fatbloke,Jan 26 2011, 10:30 PM
Thanks folks. Is a degree going to be noticable - I do drive the car pretty hard?......
Although you now have half as much toe-in as you did have, if you put in into context that the standard set up for your car is a third of what you now have, perhaps you'll feel better......

eg, I have 20mins total toe, you have 60 (pressumably 30 [0.5 degs] per side)
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