IS-F RM '' The hard way is the only way''

[CHeNoN]

Here is my tunned for the IS-F RM (work online, I don't know if the tunned work offline), right now the car is producing 735 hp and 5xx of torque. I raced with full upgrade DTM and GT500 car. and what i want is some feedback and advise to made the car faster

2007 Lexus IS F RM

SETUP

Body/Chassis
Aerodynamics
Downforce: 30/50

Transmission

Max Speed: 230

Drivetrain
Differential
Initial: x/30
Accel:-- x/25
Braking: x/10

Suspension
Ride Height: -20/-15
Spring Rate: 12.5/14.5
Extension:-- 5/5
Compression: 4/6
Anti-Roll:-- 2/4
Camber:----- 2.0/1.5
Toe:-------- 0.00/0.10

Brakes
Brake Balance Controller
Brake Balance: 5/5

Intended Driving Options
Transmission: Manual (MT)
ABS: 1
Everything else: OFF

Tuner Comments: a little of understeer, and don't be afraid of pushing the gas

 

[MattNasty]

What track/ tracks did you tune the ISF for? Btw this is my fav RM and I'm glad to see others showing the love for this car.

 

[CHeNoN]

Nürburgring Nordschleife , now i am making less of 6:40 racing,and my best time is 6:29xxx

 

[itstheDRE4M]

gonna give this a shot. I love running mine stock.. nice blue color with mate black rims.

I'll buy a new one and test it out. I know there's lots of downforce on the rear, but IMO I think the first thing I'll change is the rear Spring Rate.


AS FOR UNDERSTEER!~!! Pay attention to this test below.

Initial at 20
Accel at 10
Decel at 5.

GO AND TRY THIS TEST YOURSELF!

Initial at 20
Accel at 10
Decel at 60!

Loads of Understeer with a lesser value! Which is ironic because isn't increasing Decel or any value of the LSD what gives you understeer. Not having a lesser value?

GO AND TRY THIS TEST YOURSELF! DON'T JUST TAKE MY WORD FOR IT.

Test!:

• Dead Stop.
• Turn Wheel either direction and HOLD IT all the way through.
• No Rev-Launching.
• Dead still.. then give it full throttle. (once again no REV-Launching)
• Remember NOT to move the wheel! Keep it cranked in one direction.

 

[CHeNoN]

dream thx a lot, I never thought before that increasing decel it will increase oversteer, i will test my car .

 

[itstheDRE4M]

dream thx a lot, I never thought before that increasing decel it will increase oversteer, i will test my car .

The problem is in the GAME DESCRIPTION... it says by increasing = understeer..

but with testing.. results are opposite.

I say just give it a try.

 

[Adrenaline]

I find that test to mean nothing.
A: As you can see from the tire marks, the car never DeAccelerates, therefor the limited slip should never have been taken into effect.
B: It's done under complete loss of traction on both tires. I don't know about you, but that's not how I enter, maintain or exit a corner.

 

[CHeNoN]

I find that test to mean nothing.
A: As you can see from the tire marks, the car never DeAccelerates, therefor the limited slip should never have been taken into effect.
B: It's done under complete loss of traction on both tires. I don't know about you, but that's not how I enter, maintain or exit a corner.

mmmm.. first dream's advise was useful, i test my car and i think i ables to make the ISF a little faster, and other think first time i read "test mean nothing'' specially for a guy who make tunned review

 

[Adrenaline]

If you find his method to work, that's great, and it very well may do so.
I just don't feel that the test he provided, proves that theory; that's all.

 

[itstheDRE4M]

If you find his method to work, that's great, and it very well may do so.
I just don't feel that the test he provided, proves that theory; that's all.

Just go try it.

Standing start, NO LAUNCH, just gun it.

Have the wheels cranked in one direction.

for some reason with that car it does that by changing only the Decel value.

 

[Adrenaline]

I'm not saying that something didn't change, I'm questioning how you think that your tests in any way, shape or form can be applied to corner entry while de-accelerating.

Your tests show results for corner exit, under complete loss of traction on both tires.
I don't doubt your test, or your results, I doubt what it's suppose to be showing us.

 

[itstheDRE4M]

6:28.395 first lap'no grind' using 601hp

Aero -- Front ( 35 ) / Rear ( 50 )
Ballast -- 15kg ( Position + 20 )

Transmission -- 221mph

LSD -- 22 Initial / 13 Accel / 50 Decel

Suspension:
Height -- Front (-14) / Rear (-9)
Rates -- Front (14.1) / Rear (13.3)
Ext -- Front ( 7 ) / Rear ( 7 )
Comp -- Front ( 4 ) / Rear ( 5 )
RollBar -- Front ( 3 ) / Rear ( 4 )
Camber -- Front ( 1.5 ) / Rear ( 1.5 )
Toe --- Front ( -0.20 ) / Rear ( 0.06 )

Brake Balance -- 7/5

All Aids off / ABS1