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Suspension, Handling & Brakes Suspension set ups, uprated brakes

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Old 05-09-2017, 12:33 PM   #1
stevostr
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Help needed - at wits end!

Hi all,

I know there are many forum threads regarding handling setups for the 106 which I have read, however I have been struggling ever since receiving my 106 track car to get the handing spot on, with all that has been added over the months of experimenting.

To make it easier for advice the car specs are below and current issues - any help greatly appreciated!

Car used on tracks and hillclimbs in NI sprint series, car is 2nd in class but cannot for the life of me catch a 1.3 AX GT!!! always 2-3s up the road


Car specs

1995 106 xsi
stripped out, custom cages 6 point cage
106 gti 1600 black with xsi head, skimmed - std pistons, fast road cams
ferodo ds2500 brakes & std mintex disks
toyo proxes r888r tyres, 3 events old - improved grip but not handling
tyre profile 185/60R14 on saxo vtr wheels
front arb - 19mm off a quicksilver
polybushed all round
vibratechnics lower wishbone mounts and lower gearbox mount
upper and lower omp braces
supersprint stainless 4-2-1 mani & full decat system
vts gearbox with gripper LSD, 5.1 cwp - perfect for fastest track in NI sprint championships
rear 25mm spoox arb
19mm torsions
front bilstein grpN B16 shocks, gaz coilover conversion with 250lb springs & 5lb helper
rear bilstein black top gravel shocks





Current handling issue:

Twitchy and unsettled round sudden direction changes (e.g. left right chicane) but good on progressive corners and braking.

Steering feels dead and unresponsive initially with quite lacklustre feedback and a bit of play

side note - fume smell in cabin, only gets worse when car has been running a while??



Any other questions for clarity please feel free to shout!

many thanks,

Stephen
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Old 05-09-2017, 01:56 PM   #2
welshpug
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how low is it? even front to rear heights or a bit of rake?

checked the tracking? try parallel if not a bit of toe out.



that AX will be a good bit lighter so its always going to be quicker!
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Old 05-09-2017, 02:03 PM   #3
stevostr
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Hi Welshpug,

Will check when I get home - but I know for sure rear is higher than front, also forgot to mention I have a fibreglass bonnet to shed a bit of weight, would a well tracked car make a noticeable difference in handling??

beat the AX in a few rounds but would like to be consistent!
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Old 06-09-2017, 08:36 AM   #4
infamous aidy
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it could be worth finding someone who really knows what they are doing.

apparently sometimes some people twist the bars about to push more pressure onto the lighter side at the front and clever stuff like that.
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Old 06-09-2017, 09:40 AM   #5
stevostr
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ok chaps measured yesterday ride height from jacking points, front point to ground is 16cm, rear is 18cm so definitely running rake.

infamous_aidy, in terms of twisting bars do you mean heating torsions?
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Old 06-09-2017, 02:13 PM   #6
Spanker
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"Steering feels dead and unresponsive initially with quite lacklustre feedback and a bit of play"

I had this issue, found out I was running massive toe out which was caused by clipping kerbs on apex's. I run some your set up as well.

I now get it retracked after a track day and have been clipping the kerbs a lot.

Worth the try!
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Old 06-09-2017, 02:24 PM   #7
Mendez
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Ih Stevostr


I also have the same kind of problem, since I changed the rear ARB to 24mm, and I put b8+faulkner in front, I notice that the car runs away from the front, meybe because the rear is too locked
after reading your specification, I can not help you.
Do you have car videos? you may have too much of a lock as well
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Old 06-09-2017, 03:19 PM   #8
stevostr
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Hi guys, thanks for all the feedback - I have an event this weekend so will take some in-car footage to try and help things

Just as a thought - would it be worth the while downgrading to a 1.1 poverty spec rear ARB, I think they're 18mm, as I am running std 19mm gti torsions it may make the back less prone to stepping out and cure the twitches in the direction change?

I have a set of 23mm torsions I really need to get fitted ideally but the B*****d offset washers wont budge for the life of me!
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