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Running Gear Set Up & Alignment


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#1 scott_65_cooper_s

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Posted 22 May 2012 - 07:38 PM

Hi all

After some rough measurements if anyone can advise. Slowly getting the Mk1 back together and need to set my suspension etc to somewhere nominal before calling in my mates help to align it all properly.

My main issue is the front, I've fitted fully adjustable bottom arms and rose jointed adjustable tie bars as it will primarily be a track car. I don't have any std bottom arms or tie bars to reference against to set it "somewhere handy"

Can someone please advise?

My mate will bring his scales, tracking, camber gauges etc. when we come to do it proper, I just want to get it somewhere close so as not to waste his time.

Thanks

Scott

#2 Cooperman

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Posted 22 May 2012 - 08:52 PM

Good starting point would be:

1 mm toe-out
1.5 degrees negative camber
3.25 to 3.5 degrees caster

On the back set:

1 mm to 2 mm toe-in
zero to 0.5 degrees negative.

I hope this helps

#3 scott_65_cooper_s

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Posted 23 May 2012 - 01:27 PM

Cheers Cooperman

#4 scott_65_cooper_s

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Posted 07 July 2012 - 08:44 AM

Cooperman, thanks for the advice up to now, but I could really do with some rough measurements of length of tie bars and bottom arms if you can help? Just to get it somewhere handy before I get the gauges out. All four wheels are in different directions ay the mo. :-(

#5 bmcecosse

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Posted 07 July 2012 - 01:03 PM

Just put them all to standard length at first -let the suspension settle - and then do the setting.

#6 scott_65_cooper_s

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Posted 07 July 2012 - 08:15 PM

Sorry to sound repetitive, but that's exactly what I want to do. Problem is, I have no standard parts to check against so am working blind at the mo...

#7 Cooperman

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Posted 07 July 2012 - 11:02 PM

Hi Scott. I've been out all day and I'm out tomorrow, but I'll try to measure the bits you need measuring on Monday and post the results on here ASAP.

#8 scott_65_cooper_s

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Posted 08 July 2012 - 09:14 AM

Thanks Cooperman. No rush as I'm out today so won't get a chance to look at it till next Friday.

Everyone's help is much appreciated.

Engine's being built at the mo, so will soon be time to get her back on her wheels. Shall have to try and post some pictures...

#9 scott_65_cooper_s

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Posted 08 July 2012 - 10:04 AM

As promised... I think she's starting to look really good - but I am bias :D

Posted Image

Posted Image

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#10 Sputnik

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Posted 08 July 2012 - 10:46 AM

Absolute lovely look !! Love the colour !!

Just for info, as I am NOT running a rear anti roll bar and from suggestion from the forum I've changed my back to zero toe and 1 deg negative camber. Done my fastest lap ever yesterday during race day, and it was on a slightly wet track. Now I just have to get the correct balance between front caster and camber to get the understeer to suit my 'comfort zone'

As mentioned on the forum, every driver's car setup preference is different, but if you start as per Cooperman's suggestion, you would only have to tweak a bit here and there to suit your driving style.

Keep up the good work.

#11 Cooperman

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Posted 11 July 2012 - 02:53 PM

I've measured from standard parts and have the following:

Front tie-bar: From the centre of the bolt hole to the forward face of the welded-on flange is 15.32"
Lower arm: As far as I can measure, from the centre of the outer hole into which the lower swivel pin fits, to the centre of the centre of inner bush hole (if you see what I mean, is 10.20".

That should give you a start dimension and then setting it to the camber and caster figures as above would be a good initial setting.

I hope this helps,

Peter

#12 scott_65_cooper_s

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Posted 11 July 2012 - 05:00 PM

That's excellent, thanks! Will keep you posted




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