- 1,370
- Laval, Canada
- OutbackV6
It was going to be that đź‘Ť, but something came upAh ha! That leaves Germany or Italy then doesn't it
I was guessing it to be that gorgeous looking classic E cat.![]()
It was going to be that đź‘Ť, but something came upAh ha! That leaves Germany or Italy then doesn't it
I was guessing it to be that gorgeous looking classic E cat.![]()
It was going to be that đź‘Ť, but something came up(<that's me for forgetting), and we had a last minute change of plans, poor poor @Ridox2JZGTE , i see @Thorin Cain hasn't wasted his IRL work time to start pestering him with questions
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Can you guess which one is @Thorin Cain ?, in the Difficult car of the month a long long time ago, for every review I did I had a picture of Statler & Woldorf put in the post, in case you don't know they came from the Muppet Show, they were spectators who acted like the finest critics
No GoodI'm guessing the car in question can be BMW, Alfa Romeo or a Ford![]()
I know them very well.in case you don't know they came from the Muppet Show
That is the torque bias ratio27.5% : 72.5% is indeed 45% ( lock ), so if one wheel spinning and only capable to put down 100 lb ft torque, the other wheel can have up to 263 lb ft torque. The TBR is 2.63:1. This is likely for the drive side, rarely factory set up have more than 3:1 TBR on the overrun.
That is my understanding on the LSD torque bias ratioI may be right or wrong
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The calm before the storm...I see you're feeling low on the RPM![]()
My God! I just came from a different thread where someone stated that they believed tuning the LSD of cars in GT6 is "easy". I've been playing GT6 since December 2013 and I still have absolutely no idea how to properly setup an LSD to perform efficiently for me.![]()
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When I apply a tune from Exeter GT Tuning, for example, I do feel comfortable adjusting the DECEL setting. Increase the value if I'm getting all out of shape under deceleration and lower the value if I feel the car is "too stable" and understeering under braking. The other two settings? I don't have a friggin' clue...
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đź‘Ž
PosiTrac = open differential with a spring loaded clutches that limit the speed differential between driven axles.
The clutches transfer the torque through the spider gears to help equalize the torque split.
The higher the spring rate the more torque can be transferred across the spider gears.
The 800 lb preload kit is a racing only set up, and is the greatest for hook up, but it may cause your car to push, but not nearly as much as would a locker. The choice of differential preload springs comes down to how much power you have, the size of the tire you run, how your car handles, how tight is the racetrack, etc. If you only have 400 horsepower, you probably don’t need 800 lb. springs. If you are ordering a racing differential from us and would rather have the carbon fiber clutch pack with 400 pound springs, just indicate that in the notes section of the check-out sheet. The change won’t affect the price.
If your car is already pushing (understeer), using heavier differential clutch preload springs will make it worse. If you need the additional traction out of a corner that you will get with the 800 lb springs, you might want to address that push by one or more of the following: soften the front bar, soften the front springs, or try a rear sway bar. If you have not been running a rear bar, a little goes a long way. A stock rear bar may be all you need.
No Good
It's one of them đź‘ŤAh ha! That leaves Germany or Italy then doesn't it
I was guessing it to be that gorgeous looking classic E cat.![]()
Thank you for taking the time to provide such an informative response @Ridox2JZGTE! I will be reading and re-reading your post until some of that information starts sinking in and staying in my tiny little brain.I suppose one thing that always compounded my confusion was the fact that GT6 uses settings of 5 to 60 without providing any units. I'm looking at a tune I applied to my 2008 BMW M5, provided by HAB Tuning and it has LSD settings of 8/11/11. What does that mean? 8 what? 11 what? 11 what? I think this is what really increases my level of confusion.
Still, I think your response is going to help me tremendously. đź‘Ť I've only skimmed through it, but when I have the time I will study it completely. Thanks again, Ridox!![]()
Will watch the video later for sureand hope you will like it.
Loved the videos, sure makes you dreamI always assumed the 60 value represent 100% or max in GT5 and GT6, but some stock LSD has 50/80/0 value, the 80 values is out of reach on custom LSD. When I tested 60 accel LSD, the lock response and strength is similar to very aggressive LSD setup for circuit/drift cars IRLOne of the car in GT6 that has stock 50/80/0 lsd is GT86/BRZ/FRS, these trio has torsen LSD IRL, the torque bias ratio is not yet known to me, but might be in the 2:1 range. I think PD 80 value might be special value, I need to do some test
For initial, I assumed the 60 is 100% value of engine torque, so 8 would usually be very little value of torque ( depending on the engine output )
Again, these are just the method that I have been using since GT5 in order to approximate what I have experience in real life and adapt it into the game. The resulting lock performance and handling seems to be going in the right direction from what I did on most of my replicas.
IRL, some high performance aftermarket LSD has high torque bias ratio - 5:1 to 8:1x ( rally cars ), high cam or low ramp angle, large diameter plate - durability, aggressive preload - some has more than 15kgf, more than 8 clutch plate -allows smoother lock action ( NISMO has 20 !! )
If these LSD used in GT6, the result would be similar to what I have implemented on replicas. Take the F40 EU replica for example and compare the way it slide/loses traction on exit between RL and GT6 replica.
Watch how the F40 slide/loses traction and see how the outside tire left those black marks darker than the inside ( F40 has 60% ZF LSD )
and what entails when you have 60% lock LSD and powerful engine + street tires :
The RUF Yellowbird has 80% lock LSD, which can be easily spotted when it easily leaves lurid smoky tails of long black marks from both rear wheels.
What bothers me most is how GT6 physics handle the low lock LSD / close to open diff and how the tire physics/model react to it when losing traction. The tire model ( heat, grip loss, ) makes low / close to open diff setup can be quicker. easier and consistent to drive than with higher lock. Imagine driving a car with worn torsen LSD or worn clutch plate LSD, that is what preferred in GT6 and gives good lap times![]()
A little inside wheel spin LSD setup can give better lap times than the kind of LSD that F40 has.
I had a couple of runs with the F40 at La Sarthe, very nice car to drive! Very stable and predictable, it still oversteer a lot, but it's easy to control.
With cockpit view and the info display turned off, it was a very nice ride! Thanks for the tune!
Loved the videos, sure makes you dream. The one thing that I would like is to be able to adjust the joy stick throw scale, or have two joysticks 1 for brakes the other for gas, or a wheel & pedals
. just to be able to more feel and control the wheel spin in curves, especially with the CTR
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The new look of Vitz RS Turbo:
View attachment 345228
Car Paint: GT JAPANESE 001-C (Solid)
Wheels: PDI P525N (Standard)
Mandatory:
Cockpit view, a decent headset and turn up the volume.
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Thank for giving time to review and post a beautiful picture đź‘Ť The tune was made for Midfield and Apricot Hill, so it has to be a bit easier to control than the replica it was based on. Maybe you can get a gold on the Apricot Hill Super lap too![]()
THIS is an AMAZING one.NISSAN MARCH 12SR '07 HKS HIPERMAX S-Style C
Special Build Nissan March Online Race 437PP
Comfort Soft to Racing Hard
THIS is an AMAZING one.![]()
I hope we'll be able to get the right specs for this :http://www.nissan.ca/micra-cup/en/NISSAN MARCH 12SR '07 HKS HIPERMAX S-Style C
Special Build Nissan March Online Race 437PP
Comfort Soft to Racing Hard
View attachment 298846
CAR : Nissan March 12SR '07
Tire : Comfort Soft to Racing Hard
Specs
Horsepower: 205 HP at 6600 RPM
Torque: 168.3 ft-lb at 6000 RPM
Power Limiter at : 82.6%
Weight: 872 kg
Ballast : 33 kg
Ballast Position : 16 - move further back to 50 for even more rotation
Weight Distribution : 58/42
Performance Points: 437
GT AUTO
NO Oil change
Improve Body Rigidity ( NOT INSTALLED in this build ) - OPTIONAL
Aero Kits Type A
Custom Wing Type A
Wheels : +2 Inch Up ENKEI RP03 TypeRC painted in GT6 Polarized 02 or Stock
Brake Caliper Paint : Red
Car Paint : GT6 Polarized 02
Gauges :
Slot 1 : Boost gauge in Black ( Any )
Slot 2 : Tach in Black 0-8000rpm
Slot 3 : Speedo in Black 0-200kmh
Color : Orange ( Saturation 100, Brightness 100 )
Tuning Parts Installed :
Engine Tuning Stage 3
Sports Computer
Racing Exhaust
Isometric Exhaust Manifold
Catalytic Converter Sports
High RPM Range Turbo Kit
Suspension Fully Customizable Kit
Customizable Transmission
Adjustable LSD
Triple Plate Clutch Kit
Racing Brakes Kit - OPTIONAL ( I used standard brakes )
Weight Reduction Stage 3
Carbon Hood ( Body Color )
Window Weight Reduction
Suspension - HKS HIPERMAX S-Style C Coilover Kit
Front, Rear
Ride Height: 89 75
Spring Rate: 3.00 3.90
Dampers (Compression): 4 6
Dampers (Extension): 5 4
Anti-Roll Bars: 3 6
Camber Angle: 0.3 1.0
Toe Angle: -0.08 -0.60
DOG CLUTCH TRANSMISSION - 5 Speed Custom
Install all power parts
Set Default
Use default Auto Max Speed at 190kmh / 118mph
Adjust each gear :
1st 3.700
2nd 2.560
3rd 1.880
4th 1.490
5th 1.190
Set Final : 3.800
LSD 1 Way
Initial Torque : 18
Acceleration Sensitivity: 24
Braking Sensitivity: 5
AERO
Rear : 5 ( MIN )
Brake Balance:
7/10 ( personal BB) or for ABS 0 wheel : 2/5, for ABS 1 - feel free to use your preferred brake balance.
Recommended setting for DS3 user :
Steering sensitivity at +1 or +2, all aids off, except ABS 1 ( if not comfortable with ABS 0 ) with 7/10 brake balance as starting point.
Notes :
The Nissan March HKS special tune was made for online race at SSR5 Clubman, with very fast tire wear. The tune is based on replica that I haven't published. The car has limitation on power, PP and weight to fit the race regulations. I will update the tune again soon, with 450PP specs and transmission setup that works on 1.17.
The tune is the quickest and most consistent with 56s lap possible among other FF cars that has been tested online at SSR5 Clubman. Replay of the run included
I hope we'll be able to get the right specs for this :http://www.nissan.ca/micra-cup/en/
it would be very cool.
I tried contacting them,Not much info to follow through, will keep researching when I am free![]()
I tried contacting them,![]()
, I might be able to go see the races at Saint-Eustache, 10 minutes from my home, if I can I'll try to talk to some pilots and see if I can get some info.
When I saw the Corvette Z06 build appear in this Garage I was beyond excited. I've been anxiously awaiting this car for quite some time. Sadly, I've been dealing with some personal issues so I didn't have the time to build this car right away. Fortunately, I did have time today, so I called my mechanics in and told them to get to work.Corvette C7 Stingray Z06
Z07 Performance Package
Randy Pobst MotorTrend Test
"Big" Willow Springs International Raceway
Tuned to replicate Stingray Z06 2015
Comfort Soft to Sports Hard
CAR : Corvette Stingray C7 '14
Tire : Comfort Soft to Sports Hard
Specs Car & Driver 7 Spd Manual Test Weight
Horsepower: 650 HP / 659 PS at 6600 RPM
Torque: 654.2 ft-lb at 4700 RPM
Power Limiter at : 96.6%
Weight: 1615 kg
Ballast : 115 kg
Ballast Position : -16
Weight Distribution : 51 / 49 - real life 50.5 / 49.5
Performance Points: 574
Specs Car & Driver 8 Spd AT Test Weight
Horsepower: 650 HP / 659 PS at 6600 RPM
Torque: 654.2 ft-lb at 4700 RPM
Power Limiter at : 96.6%
Weight: 1614 kg
Ballast : 114 kg
Ballast Position : 1
Weight Distribution : 50 / 50 - real life 49.5 / 50.5
Performance Points: 575
GT AUTO
Oil change
Improve Body Rigidity ( NOT INSTALLED )
Aero Kits Type A
Wheels : Standard Size Stock RAYS 57Xtreme in Black
Car Paint : Sunset Pearlescent or Red
Tuning Parts Installed :
Sports Computer
Racing Exhaust
Isometric Exhaust Manifold
Catalytic Converter Sports
Supercharger
Adjustable LSD
Fully Customizable Dog Clutch Transmission ( ONLY for 8 SP AT )
Fully Customizable Suspension
Suspension - FE7 Z07 Performance Package
Street Alignment - Comfort Soft - Michelin Pilot Super Sport ZP
Front, Rear
Ride Height: 122 122
Spring Rate: 12.15 14.31
Dampers (Compression): 3 2
Dampers (Extension): 5 4
Anti-Roll Bars: 3 4
Camber Angle: 0.9 1.1
Toe Angle: 0.05 0.00
Suspension - FE7 Z07 Performance Package
Track Alignment - Sports Hard - Michelin Pilot Cup 2 ZP
Front, Rear
Ride Height: 122 122
Spring Rate: 12.15 14.31
Dampers (Compression): 3 2
Dampers (Extension): 5 4
Anti-Roll Bars: 3 4
Camber Angle: 2.0 1.7
Toe Angle: 0.05 0.05
DOG CLUTCH TRANSMISSION - Stock gear ratio 8 Speed Hydra-Matic 8L90 AT Adapted to 7 Speed
Set Default
Set Final to 2.410
Set Auto Max Speed to 450kmh / 280mph
Adjust each gear :
1st 4.560
2nd 2.970
3rd 2.080
4th 1.690
5th 1.270
6th 1.000
7th 0.850
( 8th gear 0.650 for fuel conserve is not available and rarely if not will never be used at the track
with 175mph @3525 RPM - useless for performance )
Set Final Gear : 2.410
LSD Chevrolet C7 E-LSD
Initial Torque : 22
Acceleration Sensitiviy: 30
Braking Sensitivity: 13
Brake Balance:
7/9 ( personal BB) or for ABS 0 wheel : 5/7, for ABS 1 - feel free to use your preferred brake balance.
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 :
The Stingray Corvette C7 Z06 is the next evolution from the base Stingray. Equipped with multitude of performance upgrades, from power, brake, handling and aero.
The main power increase comes from the Eaton R1740 TVS Supercharger, a special blower built for the Z06, a little brother to the previous gen C6 ZR1 blower, Eaton R1900, the new blower capable to spin at higher speed @20000RPM. Faster than the older blower at @15000RPM, but displaces less air at 1.7 liters per rev against ZR1 blower at 2.3 liters and less peak boost at 9.4 psi vs 9.7 psi.
The blower allows the Z06 to reach 650HP and 650 lb ft of torque, a matching numbersThere are 2 version of transmission, 7 speed Tremec TR6070 with Active Rev Match and 8 speed Hydra-Matic 8L90 automatic with paddle shifters. I have provided the 8 speed setup with only 7 speed available due to GT6 limitation. The 8th is very tall and only meant for cruising / fuel saver, and will never be used at the track. The 7 speed manual ratio is correct for the stock transmission, shift point for both setup is 6500RPM.
For weight, I have used the Car & Driver test weight, with 7 speed manual Z06 at 1615kg and 50.5 / 49.5 distribution, while the 8 speed AT Z06 is 1kg lighter at 1614kg and more rear bias at 49.5 / 50.5.
Now, onto suspension, the FE6 ( base Z06 ) package have been reported to have similar stiffness to C6 Corvette ( possibly Z06 or base coupe ). I have also information on the Z07 ( Performance Package ) for Z06, this comprised of :
As this replica is based on Z06 with Z07 Package, I used additional information that stated :
The front spring is 62% higher rate on the FE7 than the FE6.
The rear spring is 22% higher rate on the FE7 than the FE6.
The information is reportedly from Chevy engineer.
I set about to use the base C6 spring rate as foundation, after I tried the Z06 from C6 Vette as base and found it to be too stiff, although it may be usable. This brought the spring rate to : R 801.5 lb/in and F 680.4 lb/in. This may not be accurate, but it's the best I can get and I optimize the setup based on the spring rate.
I have included 2 alignment set, street and track. The street is best used with comfort tires and track with sports hard tires. The base FE6 package comes with Michelin Pilot Super Sport ZP tires, while the FE7 ( Z07 ) comes with Michelin Pilot Cup 2 ZP ( a track ready tire/semi slick ). The Super Sport ZP tire is capable of 1.12G on 300ft Skidpad ( 7 Sp MT ) - on par with SRT Viper T/A, while the Michelin Pilot Cup 2 ZP is capable of 1.19Gon 300ft Skidpad ( 8 Sp AT ). The Pilot Cup would be closer to SH tire in GT6, although I felt the lateral grip of SH is still higher than it should be. The best representation would be comfort soft tire and using street alignment.
The LSD is set based on previous replica of C6 Z06 Vette, although the C7 Z06 has E-LSD. The lsd setup is more than adequate to harness the torque and gives good traction at all speed.
The target performance for this build is Randy Pobst lap record at Big Willow on a test by MotorTrend and cars provided by Chevrolet. The Z06 with 7 speed MT managed 1:25.00 lap time, while the replica on 7 speed MT specs, CS tire and street alignment, managed 1:24s. For more realistic acceleration on higher speed ( more drag ), flat floor can be installed, but this might require stiffer rear damper compression ( increase by 1 or 2 ).
The Z06 also tested at Tsukuba where it beats the ZR1 real life Best Motoring record at 1:02.55, able to lap in low 1:02s on CS tire and early build.
I have provided the replay of the Big Willow lap, enjoy and use it as a ghost if you wish.
When I saw the Corvette Z06 build appear in this Garage I was beyond excited. I've been anxiously awaiting this car for quite some time. Sadly, I've been dealing with some personal issues so I didn't have the time to build this car right away. Fortunately, I did have time today, so I called my mechanics in and told them to get to work.
My initial reaction was actually one of disappointment. I don't blame Ridox for this. After all, there is only so much that he can do to bring us replica builds. So, I hope no one takes what I'm about to say as an indictment of Ridox's replica tuning. I was disappointed for a few reasons. First, the brakes on this Z06 are terrible. The brakes are one of the real Z06's shining features, and even with brake balance set to 8/10, I felt braking distances were just way, way too long compared to the real car. Perhaps Racing Brakes should be installed? I know that we're trying to modify a base Vette and it probably has an average braking setting coded to the car, so there is only so much we can do with the Standard Brakes.
This Z06 understeers like crazy. On throttle, off throttle...it doesn't really matter, this baby is going to plow into barriers if you aren't careful. Of course, I can adjust my driving to minimize this understeering, but I'm just disappointed that I have to adjust my driving so severely. Again, I don't think that the real Z06 suffers from this at all.
From what I have read, the Z06 with Z07 package doesn't pull very hard above 130mph. After all, this is a track focused car and the real Z06 w/Z07 package suffers at higher speed due to drag -- I'm wondering if a Flat Floor should be applied to this build? I think that would help keep some of the top end speed down a bit and it should improve downforce, right?
Also, it's a real bummer that we can't set the actual gear ratios of the 7 speed manual Z06. The actual gear ratios are listed at this chevrolet.com link (warning: PDF file). Unfortunately, as I'm sure Ridox discovered, there is just no way to set the actual ratios exactly 100% perfectly. This is yet another reason why PD needs to fix that tranny bug that appeared with the last update. I'm sure if we used a different starting Final Gear, we could probably figure out a Max Speed setting that WOULD give us all of the 7 gear ratios we need, and THEN we could move the final gear back to 3.420, instead of having to set Final Gear to 3.420 before anything else. In the meantime, I'm just using the Paddle Shift Auto (8 speed) gear ratios that Ridox provides.
Please remember, none of this is Ridox's fault. We all know that he does his research and he applies the settings of the real cars, when possible, and he deviates from the actual car settings only when it is necessary to fix a problem that exists because of the issues that are caused by Gran Turismo's flaws, ie. physics issues. I'm just so surprised that this car has so many issues, at least according to my expectations.
I would love it if you provided an opinion on the questions I posed regarding the installation of Racing Brakes and/or a Flat Floor. Obviously, I like to keep the replica build as close to 100% stock in real life, but do you think there is anything that can be done to the suspension setup that would get the enormous understeer out of the car without drastically deviating from real life values? I was thinking specifically about the front toe value...
Does anyone else feel the same way as I do regarding this Z06 with Z07 Package?
Sorry, was very tired yesterday after very long night at work.That is the torque bias ratio27.5% : 72.5% is indeed 45% ( lock ), so if one wheel spinning and only capable to put down 100 lb ft torque, the other wheel can have up to 263 lb ft torque. The TBR is 2.63:1. This is likely for the drive side, rarely factory set up have more than 3:1 TBR on the overrun.
That is my understanding on the LSD torque bias ratioI may be right or wrong
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Sorry, was very tired yesterday after very long night at work.
Getting back to the TBR, you said rarely factory setup would be more than 3:1 on overrun overrun. Would this meant would have a maximum of 75:25 or 50% for braking?