Corvette ZR1 09 at Indianapolis

[Dragonwar233]

Hello Forum,

I am in a bit of a debacle right now, where I am trying to use the Corvette ZR1 (C6) 09 to win at Indianapolis in the American Championship. But I am in a situation that is so heinous, I have almost all the upgrades fitted on my Corvette and I should, theoretically, be able to stomp the competition, because I have more horsepower and my weight is about the same as most of my competition...I also gather more speed on the straights. Yet after three attempts I keep failing because my car has this horrendous understeer, and I have tried to get acquainted with tuning, I've read Scaff's guide (I have not been able to apprehend it all yet, though) and I tried to curb my understeer and steer towards the diametrical oversteer, yet after tuning I could not dissipate the understeer. To give you an idea of my dilemma I will explain in further detail, during the straights I am faster they my opponents and can pass them but then in the corners I lose a lot of ground, and they usually overtake me. Unlike them I can only take the corners at 150-160, any faster I find myself creeping up towards inescapable doom (talking about the wall here), they take it at 150-170. I know for a fact that they are taking it at faster speed them me because they are always overtaking me in it.

I really want to figure out how to curb this vexing understeer, here is my current setup with my specs
FR
I have 788 HP @ 1221 kg
I am using Racing Soft Tyres/Tires
Adjustable LSD is all set low 5/10/5

Suspension
ride height 2/0
spring rate 11/4/19.0
Dampers C 4/6
Dampers E 5/7
Anti Roll Bars 5/6
Wheel Alignment
Camber 4.0/1.0
Toe Angle 0.49/0.49 I really don't understand the function of this still.

My knowledge of the whole tuning thing is still quite puerile

 

[Adrenaline]

https://www.gtplanet.net/forum/showthread.php?t=147684

 

[XxOnLySBz4mExX]

Well the OP was very long, so I didn't read it all but . . .
buy ZR1 => do race mods => max downforce => brakes F1 R1 => everthing else default, this only works for Am. Champ. INDY.

 

[AXEofGOD]

To get Adrenaline's Link to work for you, you must go to GT auto(where you change your oil) and go to the far right and purchase RACING MODIFICATIONS for Cr.385,000, then follow instructions on which tune you want. (Sail IC) Now if you want to do it without purchasing the racing mod for Cr.385,000 because you have purchased all the upgrades in the tuning shop and don't want to waste anymore money this is what you do: go to GT AUTO... go to AERO KIT... purchase all aero kit upgrades. find the tune you want...make sure to use full downforce...brake balancer at 1 and 1 or 0 and 0.... apply the proper tires... go to indy and put down 50 second laps and you should win.
NOTE: Understeer is still a major problem taking each turn at the right speed is a must. I did hit the wall a whole bunch and the Ford GT's where all just ahead of me on lap 4 but i passed them on the front straight before turn 1 of the last lap. It was an ugly victory but a must since I'm saving money and was too stupid to know how to properly equip and then tune my vette. I hope this helps some of you who just didn't know how to find the RM version of the Corvette ZR1 09. And to any of you who have yet to blow your money, do the racing mod in GT AUTO.

 

[dadoors]

No no no. You've got it all wrong. RM like the others said...do below

aero: 35/45
lsd: low
ride height 0/0
spring rate default
Dampers C 6/6
Dampers E 6/6
Anti Roll Bars 5/5
Camber .5/.5
Toe Angle 0/0