Not trying to piss on your fire, but are you trying to create something that looks like the real thing or drives like the real thing?
If you're trying to create a car that drives like the real thing I struggle to see how this is a 'replica tune' given GT6 settings have been shown not to work as per real life...
- You need a negative rake in GT6 to represent a positive rake in RL (ride height is reversed)
- You cannot compensate for the reversed ride height with dampers - ride height is one of the settings (along with LSD and rear toe) that has a massively disproportionate effect on a car's handling - dampers have relatively little effect
- So far, I've seen (and felt!) nothing that reassures me camber has been fixed post 1.09
Multiple elements of that tune will kill any rotation a car has in GT6 and will create a car that understeers... which is likely why you need to use the throttle to get it to turn.
- Negative rake
- Front ballast
- Very high rear +ve toe
- High LSD decel
In addition, whilst many people use higher higher brake settings in GT6 to make trail braking easier, I no of no road car that actually has a higher rear brake balance in real life.
I suggest to drive the car first before making statements
This replica was done and posted on my garage a while ago - back in 1.08 when camber still broken ( car loses grip with any amount of camber ) and I can do 2:39s without any issue and the car drives pretty well without ABS and the BB as posted.
I haven't driven the car again on 1.09, but anyone who does can give feedback, which is the main goal of me posting it here.
You obviously never driven any of my tune/replica
The Scuderia height difference is only 12mm, the effect is minimal compared to tuner who use max / min value ( front or rear ) and damper does help in this car, the rake is not extreme and I made sure the spring rate supports the suspension well. The spring rate actually used on real car, I consulted with Ferrarichat.com Scud owners
So I built replica with general aim of replicating as close as possible the specs ( power, weight, gearing, LSD characteristics etc ) and try to made them drive as realistic as well, no matter how hard it is to drive in GT6 it might become.
If I wanted a shortcut, I would reverse the ride height difference, but no, I stick to it
and it still can beat the real life lap record on comfort soft and no aids. I am sure drivers with aids will get even quicker times.
The toe is actually the real value used on most F430 Scuderia, 0.50 degree, this is to reduce snap oversteer that often happen with badly setup toe rear toe which is caused by the rear suspension geometry that goes toe out under load. And the replica still perform well with such toe value back in 1.08.
The ballast is at the rear, not front
The weight distribution in GT6 is inaccurate, and I have to use data from actual car corner weight posted on Ferrari forums, more weight at the rear, with a driver would be 42/58.
High Decel LSD is actually not a bad thing, what is it with people who prefer to drive cars with near open diff setup in GT6 ( values below 10 or mid 10s )
I asked around, and there are Scud owners who run low ramp angle on both drive side and coast/brake with custom medium/high torque preload for track racing/club racing. Anyway, I always prefer cars that have working diff that progressively locks and maintain traction better.
Run the car with no brake assist, it won't be as tight with brake assist.
@
amar212 :
For BB with higher rear value, I can drive most cars just fine with higher rear BB value, up to 2 click higher, 6/8 on non racing brakes for example. The rear does not lock first, it varies from car to car, GT6 brake balance do not represent actual force applied, even with 5/5, the front bias is still a lot on some cars. There are cars that can run 3/7 BB and still the front will lock first before the rear follows in succession.
This is the reason, @
Stotty, that real life brake balance can't be compared to GT6, GT6 brake balance do not work in the same way, a value of 1/1 is not actually 1/1 on front and rear, the bias is hidden inside the car parameter.
Here is another one - A GT4 car that I posted recently, it shares similar rake/height difference ( at 13mm front lower ), it can post 2:13s at Silverstone GP, the benchmark real life qualifying laps ( poles ) are around 2:14s. So far, I have received good feedback about the car, this was built on 1.08 with camber, and drives well on 1.09 without any changes.
One member having hard time to get into 2:13s earlier, but has managed to break into recently. I even posted my run ( replay ) for reference done with the 86GT GT4 on yellow chassis ( deteriorate ) due to high mileage. The car has racing brakes and 5/6 BB was used on the replay with no brake assist, time at 2:13.025
Should have been 2:12s
And racing brakes works on all tires, tune the brake balance value, at least for me
GPRM 86GT GT4 Replay Silverstone GP 2:13s, SS tire, no assist, BB 5/6, yellow deteriorated chassis
GPRM Motorsport TOYOTA 86GT Turbo GT4 Replica
Tuned to replicate GPRM GT86 Turbo GT4
Sports Soft
CAR : Toyota 86 'Racing' '13
Tire : Sports Soft
Specs
Horsepower: 399 HP at 8000 RPM
Torque : 287.4 ft-lb at 5500 RPM
Power Limiter at : 100%
Weight: 1190 kg
Ballast : 47 kg
Ballast Position : -35
Weight Distribution : 54 / 46 as the real car spec.
Performance Points:
508
GT AUTO
Oil change
Improve Body Rigidity (
INSTALLED ) -
MANDATORY - GT4 cars are seam welded and has weld in cage.
Aero Kits Type A
Custom Rear Wing :
Wing Mount Standard Type B
Wing Large Type B
Winglets Large Type C
Height -5 and Width -32
Wheels : +1 Inch Up - OZ RACING Ultraleggera or RAYS 57Xtreme in grey or silver
Car Paint : White, Black, or Grey
Tuning Parts Installed :
Engine Tuning Stage 3
Sports Computer
Racing Exhaust
Isometric Exhaust Manifold
Intake Tuning
Mid RPM Range Turbo Kit
Catalytic Converter Sports
Fully Customizable Suspension
Adjustable LSD
Racing Brakes Kit
Weight Reduction Stage 1
Suspension - EIBACH Sportsline Springs / Koni 2 Way Damper Kit
Front, Rear
Ride Height: 93 106
Spring Rate: 15.67 18.67
Dampers (Compression): 8 7
Dampers (Extension): 9 8
Anti-Roll Bars: 6 5
Camber Angle: 3.0 1.2
Toe Angle: -0.16 0.08
LSD - 1.5 Way 55/75 Salisbury type LSD High Preload
Initial Torque : 24
Acceleration Sensitivity: 27
Braking Sensitivity: 10
AERO:
REAR : 20 ( Max )
Brake Balance:
5/6 ( personal BB) or for ABS 0 wheel : 4/5, for ABS 1 - feel free to use your preferred brake balance. I would recommend to run just one click higher on rear brake.
Recommended setting for DS3 user :
Steering sensitivity at +1 or +2, all aids off, except ABS 1 ( if not comfortable with ABS 0 ) with 5/6 brake balance as starting point.
Notes :
This replica is very hard to built with very limited information available on the car. Early 2013, the car was on the news, it may have been the first 86 built for GT4 class.
The GPRM Ltd who built the car stated it has 350-400HP with turbo added. Not much else was disclosed, so I have to improvise. I used the base model for CS V3 Cup car as a base setup for the GT4 car. Suspension uses similar spring rate with revised ride height and tweaking on the damper, ARB, toe and camber. The real car uses Eibach Sportsline coil springs and Koni 2 way fully adjustable damper.
LSD uses high preload 1.5 way with medium/high lock 55/75 to replicate Salisbury type diff used on the GPRM GT86 GT4. I leave the gearbox in stock form as it's more than enough to do the job and quite versatile on various tracks ( the real car has 6 speed sequential conversion but may still uses stock ratio as the Brit24 86 car also built GPRM uses stock ratio ). Weight distribution has also been fixed ( similar to the CS V3 Cup car ) The weight figure is slightly less than CS V3 Cup 86, with 1190kg, I pick this value considering the GT4 car has stripped out interior, perspex windows, lightened body shell and similar chassis modification to CS V3 Cup.
For closer performance compared to other GT4 cars, I decided on 399HP power using mid rpm turbo, this allows the GT86 to lap quite close to real life times at Silverstone GP. During testing, the car is capable of 2:13s lap on SS tire.
