Need help Tuning my subaru impreza WRX STI type S '14 tunning it for the Nurb24hr racetrack only

  • Thread starter LegacyB408
  • 3 comments
  • 3,256 views
LegacyB408

LegacyB408

4
New Zealand
New Zealand
Hello all new to the forums
My Current suspension setup
Body height Adjustment : front 105/ Back 111
Anti roll bar : front 2/ back 3
Damping ratio (compression) front 35/ back 35
Damping ratio (expansion) front 45/ back 45
Natural frequency front 2.80/ back 3.25
Negative camber angle front 1.5/back 2.5
toe angle (up) in- 0.20/ back (down) out- 0.18

i like to tune my impreza to be handling better in corners
right now that Above setup is Making the impreza understeers going into all of the corners of Nurburgring24hr racetrack
Thanks all
 
What power/weight/tyres are you on? Also LSD and gearing if you've set them.

EDIT: I've had a look at a stock car with your suspension settings. It does indeed understeer a lot. I'll try to get a full tune sorted but I'm away from my PS for a few days.

As a rough piece of advice, I think your rear camber is giving a lot of rear grip, and the front can't keep up, thus understeer. I'd actually try F2.5/R1.5 as this improved turn in for me.

On the nurb, you might want to try softer springs and higher ride height all around, as it's a very bumpy track and you can lose compliance and grip easily, especially over the curbs.
 
Last edited:
WRX STI Type S '14 Base Tune (Stock Engine, Weight, Gears, SH Tyres)

Suspension (F/R)
Ride height: 110/120 mm
ARB: 3/6
DampC: 30/27 %
DampE: 40/38 %
NatF: 2.20/2.0 Hz
Camber (-): 2.0/1.5 deg
Toe: 0.00/0.00 deg

Differential (F/R)
IT: 5/7
Accel: 13/25
Decel: 5/5
Front/Rear 40:60

Brake Bal
2 (rear)

Give this a try mate. If you're running huge power mods and/or racing tyres then it'll need some tweaks, especially the differentials.

For stock gearbox, shift @7500 rpm
 

Latest Posts

Back