I have got Tein CS V2, TRD sways, upper and lower chassis braces front and rear, and had the geometry tuned after all this has been fitted.

I made a right turn a bit too fast and I just felt the car understeer in a big way and then the corner of the car hit the metal railing on the street.

Is understeer an issue on GSs that get modified in this manner?

 

I have no idea, but i'm really sorry for your incident =(

 

Damn! Sorry to see that and glad you are ok.. I see a Euro plate on your car, so I take it you drive your car on those beautiful winding roads of Europe.. It boils down to chassis dynamics. I love the GS including my own, but these cars were built to be cruisers and not all out corner carvers (even when modded). Drive safely.

 

Ouch! Was that the first time pulling off a maneuver like that?

 

How was the LS400 totalled?

 

Yes, I'm in London. We have lots of twisty roads in England, and the modifications in the GS pushed the grip levels sky high, compared to stock.

I was all set to take the car to Nurburgring in a months time, and now this!

 

Yes, I went in to the turn too quickly. Maybe it's a sign I need to be driving a Skyline!

 

I skidded and hit a tree at 50mph and rolled.

 

Here are your options:

1. Tires do not have the grip for the speed you're going at
2. Alignment is not spec'ed correctly for your car and the mods you have
3. Accept the fact that the GS is not a real sport sedan

Keep in mind that the GS steering ratio is pretty crappy too. It's going to take a good amount of turn before the wheels gets pointed in the direction you want it to go. You'll feel this affect more when you're driving faster.

 

Any car will "push" if you carry too much speed into a turn and crank the wheel aggressively. I've even experienced this to some degree in a mid-engine car, although they can quickly transition to oversteer if you lift suddenly.

So, in extreme situations like this, you have two options"

Understeer: go off the road seeing where you're going
Oversteer: leave the road seeing where you came from

Understeer ain't so bad, considering.

 

Were you understeering also?


Maybe it was a user error.

 

that and the totaled ls in his sig. they say a persons past is the best method in which to predict their future.

either way, sorry for your loss man, time to patch her back up and do it again.

 

Ding ding ding! That's what I was getting at.

 

Since I work for the Bondurant School of High Performance Driving, I can tell you that any front engine car is more prone to understeer, just like any rear engine car is prone to understeer. That mass wants to lead into the corner. The basics don't change, but you just manage the properties differently. Having 300lbs of torque, 300hp, and having rear wheel drive like our beauties certainly helps the situation. It doesn't matter what type of vehicle you are driving, the same basic laws of physics or vehicle dynamics apply.

One easy and affordable way to practice these concepts is to play Gran Tourismo and take all the traction control off. Pick some big horsepower beast from the 60's or 70's that handles like crap and take it to an easy road course. At first you'll plow the corners because you are carrying too much speed into the corners, but as you get better, you learn to set the front end and figure out something called weight transfer.

As someone more famous than I once said, "Slow in, fast out; fast in, dead out."

 

Thank you, captain obvious.