Saturday, May 14, 2011

RKM Motorsport: Ikeamobile

RKM Motorsport: Ikeamobile

Based on: 2008 Audi RS6 Avant
Obtained: New Car Dealer

Drivetrain: AWD
Horsepower: 900 BHP (@113.2 miles)
Torque:---- 654 ft-lb
Weight:---- 1524 kg

PARTS
GT Auto

BBS RS wheels
Front Aero Type A
Extension Type A
Rear Wing Type A

Tuning Shop
Weight Reduction Stage 3
Lightweight Windows
Carbon Fiber Hood (Body Color)
Engine Tuning Stage 3
ECU Tuning
Sports Intake Manifold
Racing Air Filter
Titanium Racing Exhaust
Sports Header
Sports Catalytic Converter
High-RPM Turbo Kit
Semi-Racing Flywheel
Semi-Racing Clutch
Carbon Driveshaft
Adjustable Center Differential
FC LSD
FC Suspension
Sports Soft tires

SETUP

Body/Chassis
Aerodynamics

Downforce: 0/10

Transmission
Transmission

1st:-- x.xxx
2nd:-- x.xxx
3rd:-- x.xxx
4th:-- x.xxx
5th:-- x.xxx
6th:-- x.xxx
7th:-- x.xxx
Final: x.xxx
Max Speed: xxx

Drivetrain
Differential:

Initial: 5/6
Accel:-- 20/30
Braking: 5/5
F/R Bias: 30/70

Suspension
Suspension

Ride Height: -30/-30
Spring Rate: 10.0/8.0
Extension:-- 10/10
Compression: 7/7
Anti-Roll:-- 1/3
Camber:----- 0.0/0.5
Toe:-------- 0.00/0.00

Brakes
Brake Balance Controller

Brake Balance: 6/10

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

Tuner Comments:
If you need a vehicle to do constant Ikea runs in, you'll want a wagon if you want to keep anything resembling driving dynamics. If you want a fast wagon, you'll buy an Audi RS6 Avant.

And if you find that the stock RS6 isn't fast enough to beat the crowd and could use a bit more room in the back for stuff, well... Bring it on by us. We'll strip all the rear interior trim, making the already-huge load area even bigger, crank the power by more than 300hp, and make an absolute monster. That will haul more than some trucks.
The Audi RS6 is one of my favorite cars in GT5 because I own and drive an A6. So right out of the box I expect something a little more from this car than normal perhaps. I bought this car as soon as I could and used it for several A-Spec series races, really as many as I could get it into. In a normal race it will destroy the competition up until the higher tiers where there is some work required. But how will it fare under the microscope of a time trial?

In stock form there is lots and lots and lots of understeer and then some more understeer on top of that. This car is heavy! With stock power at almost 600hp it is fast but at over 2000kg the weight is killer. Combine both the speed and the weight and you find yourself spending a lot of time on the brakes. Coming off the fast sections is a real test of how far you want to push. Miss your braking point by even a small margin and you will pay for it in the corner and the tires will scream obscenities at you. All that horsepower does make up for some of the braking, especially on GVS's longer straight sections, but it does have a "two faced" feel; on one hand it will crush you into your seat with its power and on the other it lets you down from that high with the long braking zone. It is fairly fast but not quite where I thought it would be with the power, coming in at 2'11.897".

Add on the parts and you will be tempted to yell out in your best Jeremy Clarkson voice "POWEEEERRRRRRRR!!!!!" At near 900hp and 75% the weight the car is blazingly fast. With the reduced weight the brakes are feeling better on entry but with all the speed you are carrying in they still need to work hard. Getting back on the gas early in the corner is a no-no as you will surely shoot off into the grass, wall, sand or whatever happens to be waiting off the track. Late apex is definitely in order with this much power. Doing that you can easily turn a quick time. I was able to whittle it down to 1'58.263".

The tune settings feel a little strange to me. The center diff settings at a 30/70 F/R split make the car behave a little too much like an FR muscle car from the US rather than a precision German AWD. The car behaves better but the rear is a little too slippery for my taste, especially in lower speed corners. Again, that power lets you know it is there by stepping the tail out and quick too. It is controlled pretty easily but I found myself losing a lot of time getting the rear back under the car. I was able to lap in the same range as the parts mod version but could not beat it despite my best effort, managing a best of 1'58.504".

After a break to catch my breath I did something I don't normally do and messed with the settings a bit. I did not record times but was going for a change in feel instead. I tried two settings on the CD. I bumped it to 40/60 and found some stability for the rear but the understeer was a little heavy. I came back to the pit and shifted to a 35/65 split and went back out. This felt better but I was starting to find the sliding in the rear again. The happy medium appears to be between these two settings, at least for my driving preference. A tweak to bring down the power might also work without the CD change or maybe in combination. I'm not a fan of high power cars as my throttle control is a bit lacking with the DS3, and that is really what is needed to bring out the full potential of RJ's tune. Despite that I don't have the high level of control it is still one hell of a fun ride!

Lap Times
Grand Valley Speedway: 1'58.504"

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