TT lower arms and geometry changes

[Carrera2RS]

Chaps, I have done some measuring and I have found the wheel position is notably different with longer bottom arms

Roughly adding 1 degree of negative camber will have the following effects :

Tyre outer edge at the top of the arch will move out by approx 3mm  an 14mm at the bottom. The track will increase by 18mm (9mm a side) , the front ride height will drop by 5mm.

Adding 1.5 degress of neg (circa 2 degrees total) :

Tyre outer edge at the top of the arch will move out by approx 5mm  an 21mm at the bottom. The track will increase by 26mm (13mm a side) , the front ride height will drop by 7.5mm.

The thread on the control arms is sufficient to cope as the track rod ends will neat to be wound out by a similar amount to the track.

I will see if I can purchase ET50 8 x 18's as the wheel does touch the inner arch occasionally under hard cornering and encountering a bump mid corner. I have ET45 8x18's currently

With circa 2 degrees of neg with ET50's I will be running a front track increase of circa 24mm, 12mm a side 

[danishmkvgti]

and i'm running -2,3 degree of negative camber front, maybe that's why my ET48 8,5x19" with 235/35-19" hits occationally 

[Carrera2RS]

at -2.3 degrees, if I read correctly your wheel upper edge will be some 3(offset)+say8(5mm tyre per side and 1" strech)+5 (if lowered and adding 1.5 degrees neg)

So probably some 16mm out at the upper edge !

[danishmkvgti]

at -2.3 degrees, if I read correctly your wheel upper edge will be some 3(offset)+say8(5mm tyre per side and 1" strech)+5 (if lowered and adding 1.5 degrees neg)

So probably some 16mm out at the upper edge !

I deffo have to do something to my inner fenders, with this and my 10mm wider front fenders the inner fenders aren't sitting right. 

[Carrera2RS]

Sounds like you should have plenty of clearance with 10mm extra width. I had no problems running stock bottom arms, 225/40 18's on 8x18 et 45. the will place the outer wheel edge 11mm further out and tyre probably 8-9mm.

My ride heights are now 338F, 323R. They were 335F, 323R before. I was targeting 340F, 325R, they seem to have settled

[danishmkvgti]

the clearance is there, the trouble is the stock inner fenders doesn'r "rest" in the wider fenders and as such are getting "adjusted" by the tyres 

[vRSAlex]

I dont seem to get any arch clearance issue after fitting the TT arms.  Maybe the vRS has a slightly wider front.  The issue I do have is the WALK combined with the TT arms has given me too much caster and the wheels are much closer to the front of the arch than the rear.  I have modded the WALK and managed to pull the subframe back slightly, but I may go back to the standard consoles with some superpro bushes.

What caster are you two running?  Mine is around 9degs 15 mins.  I would like it to be around 8degs 15mins.

[56OctyVRS]

I was thinking of doing this to my octy but I think I will just stick to normal superpro/powerflex console bushes and not fit the TT control arms.

[danishmkvgti]

I dont seem to get any arch clearance issue after fitting the TT arms.  Maybe the vRS has a slightly wider front.  The issue I do have is the WALK combined with the TT arms has given me too much caster and the wheels are much closer to the front of the arch than the rear.  I have modded the WALK and managed to pull the subframe back slightly, but I may go back to the standard consoles with some superpro bushes.

What caster are you two running?  Mine is around 9degs 15 mins.  I would like it to be around 8degs 15mins.

Mine with WALK and TT mk2 lower control arms is set at 8,3(4-8)'

http://www.mk5golfgti.co.uk/forum/index.php/topic,7823.msg246912.html#msg246912

[vRSAlex]

I will mod the WALK some more then to get the wheels back where I want them.

[the bruce]

I dont seem to get any arch clearance issue after fitting the TT arms.  Maybe the vRS has a slightly wider front.  The issue I do have is the WALK combined with the TT arms has given me too much caster and the wheels are much closer to the front of the arch than the rear.  I have modded the WALK and managed to pull the subframe back slightly, but I may go back to the standard consoles with some superpro bushes.

What caster are you two running?  Mine is around 9degs 15 mins.  I would like it to be around 8degs 15mins.

Alex, what's wrong with more caster? I'd like to have even more !!

 

[mortygttdi]

Can someone tell me, if the S3 hubs and wishbones make the track wider??? I seem to be getting some banging from the front when I turn the wheels but it doesn't happen every time? I think the driveshafts outer joints are not seating properly? so when they are turned they are coming apart then going back in when straightened up.

I have checked every thing for loose bolts and cannot find anything I usually look at the drop link has they are the most common to make noises.

Darren

[the bruce]

I'd wonder if the track is wider with the S3 hubs.
I've fitted them for a week and couldn't see anything different.

[danishmkvgti]

Can someone tell me, if the S3 hubs and wishbones make the track wider??? I seem to be getting some banging from the front when I turn the wheels but it doesn't happen every time? I think the driveshafts outer joints are not seating properly? so when they are turned they are coming apart then going back in when straightened up.

I have checked every thing for loose bolts and cannot find anything I usually look at the drop link has they are the most common to make noises.

Darren

I doubt it. if you had trouble with the driveshafts i wouldn't be able to drive with the TT arms 

[the bruce]

I guess with the TT arms it would be better not to adjust the camber to max.
About - 2° should not be any problem as so many guys have it this way without any issues.