Hello Guys.
I read a lot about suspension, sway bars and alignment the last few weeks. I have an "issue" with the car going through tight low speed corners. It understeers. Higher speed corners do work fine and the car feels very stable and balanced even at really high speed cornering.
We have some small roundabouts around where I live and I tried circling one of them at night just for testing. It turns in without power but feels really slow. The more steering angle, the more understeer. When I add a little throttle it starts to push the front wheels even more. Sadly the cops stopped my testing after the third round, but they were very cool and just gave me warning not to do it again :biggrin:
Setup of the car as follows:
OEM 91 springs
Bilstein shocks on lower perch
stock 91 sway bars
Front tires: Federal RSR 595 215/40 R17
Rear Tires: Federal RSR 595 255/35 R18
Rims: Advan T7
Alignment (this setup is actually from the NSXprime wiki):
Front total toe out: 2mm
Front camber: 1°
Caster: 9.5° (did not touch the adjuster yet)
Rear total toe in: 3mm
Rear camber: 2.2° (can't get less due to lowering)
Before the alignment, the car felt way better in lower speed corners but unstable at higher speed corners. It had less than 0.5° front camber and toe in (don't remember how much). It would push sideways a bit when exiting a corner on throttle.
I have two options I may want to try.
1) NSX-R sway bars.
I would just install the front one as the common opinion here seams to be, that the rear R bar is too stiff for a street driven car.
I understand that there is a chance of reducing the front grip with this but also a chance of improving turn in and mid corner grip.
Is it beneficial to install the front R bar?
2) change the alignment
Any thoughts?
The second thing I want to check is the tire pressure. I actually did not look at the tire pressure and I thing it might be a bit too high. What is the tire pressure rating of a stock NA2 with the 215/255 tires?
EDIT: Found it: 33psi(2.3bar)/40psi(2.8bar)
Cheers,
Bernhard
I read a lot about suspension, sway bars and alignment the last few weeks. I have an "issue" with the car going through tight low speed corners. It understeers. Higher speed corners do work fine and the car feels very stable and balanced even at really high speed cornering.
We have some small roundabouts around where I live and I tried circling one of them at night just for testing. It turns in without power but feels really slow. The more steering angle, the more understeer. When I add a little throttle it starts to push the front wheels even more. Sadly the cops stopped my testing after the third round, but they were very cool and just gave me warning not to do it again :biggrin:
Setup of the car as follows:
OEM 91 springs
Bilstein shocks on lower perch
stock 91 sway bars
Front tires: Federal RSR 595 215/40 R17
Rear Tires: Federal RSR 595 255/35 R18
Rims: Advan T7
Alignment (this setup is actually from the NSXprime wiki):
Front total toe out: 2mm
Front camber: 1°
Caster: 9.5° (did not touch the adjuster yet)
Rear total toe in: 3mm
Rear camber: 2.2° (can't get less due to lowering)
Before the alignment, the car felt way better in lower speed corners but unstable at higher speed corners. It had less than 0.5° front camber and toe in (don't remember how much). It would push sideways a bit when exiting a corner on throttle.
I have two options I may want to try.
1) NSX-R sway bars.
I would just install the front one as the common opinion here seams to be, that the rear R bar is too stiff for a street driven car.
I understand that there is a chance of reducing the front grip with this but also a chance of improving turn in and mid corner grip.
Is it beneficial to install the front R bar?
2) change the alignment
Any thoughts?
The second thing I want to check is the tire pressure. I actually did not look at the tire pressure and I thing it might be a bit too high. What is the tire pressure rating of a stock NA2 with the 215/255 tires?
EDIT: Found it: 33psi(2.3bar)/40psi(2.8bar)
Cheers,
Bernhard
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