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Author Topic: TT lower arms and geometry changes  (Read 20426 times)

Offline Carrera2RS

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Re: TT lower arms and geometry changes
« Reply #15 on: May 03, 2011, 03:55:46 pm »
By my reckoning the track with TT arms will be some 9mm per degree of additional negative camber per side. This is because the hub centre will move out by circa this much using this method for adjusting camber. (top mounts different story)

I doubt if the splines would be insufficient to deal with this movement ?

If the MkV has 1 degree of neg via the bottom arms then this will alway be the case irrelivant to the hub and arm used. Since the shaft will need to be extended by 9mm to reach if the centre bolting is the same on an S3 and not sat further out than the VW. I see no reson why this might be the case.
« Last Edit: May 03, 2011, 03:57:38 pm by Carrera2RS »
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Offline berg

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Re: TT lower arms and geometry changes
« Reply #16 on: May 08, 2011, 05:31:46 pm »
Hi guys, have fitted TT wishbones and eibach arb's today, already have WALK.

Car feels awful - will book laser alignment tomorrow.

What settings do I need to advise them I want? Was going to run -2 degrees negative camber on front as per BDM Alex's thoughts on the matter but do I need to advise them of other settings or will they just sort it out as they see fit?

Thanks
« Last Edit: May 08, 2011, 10:27:24 pm by berg »
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Offline rex

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Re: TT lower arms and geometry changes
« Reply #17 on: May 08, 2011, 06:17:56 pm »
Did you mean TT wishbones??
If you mounted TT arms and did not do any Toe adjustment no wounder the car is awful. If this is the case I truly know what you are experiencing. Fix the wheel alignment and things will get much better. Toe out should be around 6 degrees now which is way off scale... Fix the toe to be 5 minutes Toe in and the car will fell much much better.
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Offline the bruce

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Re: TT lower arms and geometry changes
« Reply #18 on: May 08, 2011, 08:44:56 pm »
Right, under regular circumstances go for 5' toe in per wheel on both front and rear.

 :driver:
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Offline berg

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Re: TT lower arms and geometry changes
« Reply #19 on: May 08, 2011, 10:30:25 pm »
sorry yes, did not proof read any posts - my spelling is atrocious today!

Sorry, but how come you measure "toe" in minutes? It seems odd to measure cars geometry with a unit of time (am sure has different meaning here though!)

Thanks will advise wheels in motion of your comments and hope they can sort it out
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Offline the bruce

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Re: TT lower arms and geometry changes
« Reply #20 on: May 08, 2011, 10:35:06 pm »
1° = 60'  (european)

Don't think about it - your mechanic will know about.

 :wink:

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Offline danishmkvgti

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Re: TT lower arms and geometry changes
« Reply #21 on: May 09, 2011, 07:31:50 am »
Berg i assume you are not naval educated  :wink: Neither am i  :laugh:
It's a term developed by the English navy waaayyy back when they used a Sekstant? to determine their position compared to the sun or other objects on the sky. so it a general used term which you will also see on a globe.
« Last Edit: January 21, 2012, 11:04:08 am by danishmkvgti »
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Offline berg

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Re: TT lower arms and geometry changes
« Reply #22 on: May 09, 2011, 09:01:27 am »
Quote from: danishmkvgti on May 09, 2011, 07:31:50 am
Berg i assume you are not naval educated  :wink: Neither am i  :laugh:
It's a trem developed by the English navy waaayyy back when they used a Sekstant? to determine their position compared to the sun or other objects on the sky. so it a general used term which you will also see on a globe.


I see Captain, a salty sea dog I am not  :smiley:

ok wont think about it just get them to sort booked in tomo
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Offline Carrera2RS

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Re: TT lower arms and geometry changes
« Reply #23 on: May 09, 2011, 09:54:07 am »
I will update following a visit to Wheels in motion.

I expect to settle on around 2 degrees of negative and parallel or small toe in at the front (5 minutes). My ride heights are currently 338F, 323R and I may rais a little.

With 1.7 of negative and 8 minutes of toe in the front does not feel as good as I had hoped. It feels a little clumsy and less precise as you turn in. The in corner grip and balance is better, but somehow straight ahead is a little blunt. I am also well aware that too much track can greatly affect things, I have no idea where the KPI angle is on the Golf and how this has been affected.

I'll keep you posted of how things measure up and what settings I settle on. Oh I also think I might have PSS10's and not PSS9's as I am told the 10's have 10 settings and the 9 have 9. My units have 10 settings
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Offline rex

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Re: TT lower arms and geometry changes
« Reply #24 on: May 09, 2011, 10:52:52 am »
Well, the only difference between PSS10 and PSS9 is the number of available settings. If you have 10 settings it is definitely PSS10.
Also PSS9 is not manufactured for Golf since the end of 2008 (I think, have to double check to be 100% sure).
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Offline Carrera2RS

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Re: TT lower arms and geometry changes
« Reply #25 on: May 09, 2011, 11:06:30 am »
They must be PSS10's then as they are only 3m old
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Offline berg

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Re: TT lower arms and geometry changes
« Reply #26 on: May 10, 2011, 10:10:35 am »
Car is with wheels in motion at mo.

they seem to be saying that if i run -2 degrees negative camber that i will just scrub the tyres and wont help traction? He has advised to get rid of the Conti's and get R1R/RS2 etc on.

am sure they will set up well though, father in law has just called me to advise has driven it back down the m58 and says is running well  :happy2:
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Offline rex

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Re: TT lower arms and geometry changes
« Reply #27 on: May 10, 2011, 11:18:13 am »
2.15 is the maximum RECOMMENDED negative camber for the rear tires. If 2.15 is ok for the rear wheels why is it not ok for the front tires?? So I really doubt there is a problem there...
Not to mention that during cornering the negative camber is reduced...
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Offline berg

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Re: TT lower arms and geometry changes
« Reply #28 on: May 10, 2011, 12:21:18 pm »
i know am sure if Alex is running at -2.15 must be ok, might get BDM to have a look at it in future when maybe get RS4 valve done
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Offline Carrera2RS

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Re: TT lower arms and geometry changes
« Reply #29 on: May 10, 2011, 10:14:43 pm »
Berg,

I'm at wheels in motion tomorrow, any guidance would be appreciated.  :happy2:
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