Time Trial Discussion

  • Thread starter seadog777
  • 37,140 comments
  • 2,565,778 views
View attachment 1240711
Round 2 - 1:27.879
Not every day I manage a visit to the top 100.
This time I went for the NA engine, with gearing and setup based on the tune @sdi_03 shared yesterday.
Only did some smaller changes to the suspension. But had to go very different on the lsd settings to get the handling to feel a bit more predictable.
(No assists except ABS default)
View attachment 1240713View attachment 1240714View attachment 1240715
Todays update… started frustrated with yesterdays setup, feeling a bit like I’m overdriving the car and losing time in stupid places. I tried @W1gglyStyl3 ‘s mod and wow what a setup! CS off and it feels quicker than anything I’ve used before, like the Praiano tune but without the incredible understeer.

Did a few laps and managed a 1:28.355 with a few mistakes. I think getting in the 1:27s with CS off in this tune will be an extremely satisfying result Imo!

Thanks again all clever egg heads who are able to tune these cars and get more out of them!
 
Todays update… started frustrated with yesterdays setup, feeling a bit like I’m overdriving the car and losing time in stupid places. I tried @W1gglyStyl3 ‘s mod and wow what a setup! CS off and it feels quicker than anything I’ve used before, like the Praiano tune but without the incredible understeer.

Did a few laps and managed a 1:28.355 with a few mistakes. I think getting in the 1:27s with CS off in this tune will be an extremely satisfying result Imo!

Thanks again all clever egg heads who are able to tune these cars and get more out of them!
I think for me the problem is the switch in tunes each time, i tried multiple tunes, also the NA tunes, and i'm not getting the right feeling from one of them, very frustrated, then at the end of a session i grab a slightly modified Praiano tune and immidiately hit mid 28's and sometimes a little lower, but never a clean lap, so still no 27's :lol:
feels way more heavy than like the SDI tune but for some reason it's still faster for me.

So still no realy good tune for me, stil tweaking, I will do the W1gglyste, maby that will work ,

So still @ 28.274

And with a remodeling of my kitchen i don;t think i have as much time as i did in the previous TT's :ouch::lol:
 
Last edited:
like the Praiano tune but without the incredible understeer.
Have you tried Mistah's? I'm asking because I feel in Praiano's I don't see the understeer I see in Mistah's, and now you are saying Praiano's understeer...

Would you like to elaborate a bit more? I asking to learn from your comments to understand better what I am feeling while driving


Finally:
I feel a bit guilty and disrespectful in writing about my difficulties in using a certain setup, and I would be sorry if it sounded like complaining, so I am writing once and for all THANK YOU to all those who provide their time and skills to enable those like me to compete using their setups.

THANK YOU especially to @Mistah_MCA , @praiano63 , GTItalia, TheKie25 who allowed me to get to silver and hopefully beyond
 
Well, I don't know how you guys are finding the grip on this track to go as fast as you are. I think I'm never going to get in to the 29's. Stuck at 1:30.008. Doesn't matter what tune I use, I just can't go any faster. The car either understeers wide or snap oversteers on me. No happy medium to be found. At least it is a solid silver time. I likely wont have to grind to go any faster.
 
Inspired by another poster's setup, I unequipped the Racing Muffler, Racing Manifold, and Racing Filter, and then fiddled with the ECU and power restrictor to get back to the HP I was at before, which was 442. What I found strange is that I think I was faster because that setup actually offers a bit more torque, despite having the same amount of power. Could someone explain that? I think HP is a calculated when you simply multiply the torque by the RPM.

So what I think this means, is that those three parts allow the engine to rev higher, and when they're uninstalled, the torque needs to be higher to get to that same HP metric.

At any rate, I'm very content staying in silver range for this one. I also increased the rear anti-sway bar to 6, and lowered the ride height on both ends to the minimum. Having TCS on at 1 helped a lot, too, but other than those, I don't recall doing much else. I mean, I also maximized both the front and rear downforce, and played a bit with the gear ratios, but it's not like I touched the LSD or any of the other suspension settings.

EDIT: Does the size of the rear wing you install in GT Auto really matter? E.g. low/medium/high? I would've though that any of the three custom wings would offer the same ranges of potential downforce settings, but I just wanted to check.
 
Last edited:
zjn
Have you tried Mistah's? I'm asking because I feel in Praiano's I don't see the understeer I see in Mistah's, and now you are saying Praiano's understeer...

Would you like to elaborate a bit more? I asking to learn from your comments to understand better what I am feeling while driving


Finally:
I feel a bit guilty and disrespectful in writing about my difficulties in using a certain setup, and I would be sorry if it sounded like complaining, so I am writing once and for all THANK YOU to all those who provide their time and skills to enable those like me to compete using their setups.

THANK YOU especially to @Mistah_MCA , @praiano63 , GTItalia, TheKie25 who allowed me to get to silver and hopefully beyond
It's been a while since I tried either to be honest so I'm just going by what I remember which might not be much! Mistah's tune was quite lively and that was with all assists off except ABS default and CS Strong. It may drive differently with other assists on like TC and ASM. Praiano's just wouldn't turn in at all for me, especially on mid speed corners.. So at turn 4 the car just won't turn in without losing a lot of speed first and that was costing me a huge amount of time!

@W1gglyStyl3 's setup turns in really quickly and so the car is quicker through the mid speed corners. Plus, with the modifications to the LSD it is not as willing to break traction when under accceleration and so I can have more confidence accelerating out of corners without Countersteering assist on.
 
Well, I don't know how you guys are finding the grip on this track to go as fast as you are. I think I'm never going to get in to the 29's. Stuck at 1:30.008. Doesn't matter what tune I use, I just can't go any faster. The car either understeers wide or snap oversteers on me. No happy medium to be found. At least it is a solid silver time. I likely wont have to grind to go any faster.
I found you need to heavily invest in the "slow in, fast out" approach. Brake early and turn early, aiming for that apex, and get on the gas as soon as you hit the apex (without over-stepping it) and you'll gain a load of time.
 
HP is a calculated when you simply multiply the torque by the RPM
There will be more mechanically minded people that could elaborate and even Google will help, but I think:
  • Horse power is the amount of work (as in force) required to move a certain weight over a certain distance
  • Torque is a turning force separate and different from horse power.
 
I found you need to heavily invest in the "slow in, fast out" approach. Brake early and turn early, aiming for that apex, and get on the gas as soon as you hit the apex (without over-stepping it) and you'll gain a load of time.
Yep, tried that. I've tried slow in/fast out, maintaining corner speed and hitting apexes, overshooting and late apexing, cutting corners (getting half the car over the sausages), ballast forward, ballast at the rear, TC on, TC off, raked stances, etc. Can't go any faster.
 
There will be more mechanically minded people that could elaborate and even Google will help, but I think:
  • Horse power is the amount of work (as in force) required to move a certain weight over a certain distance
  • Torque is a turning force separate and different from horse power.
From Wikipedia:

Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors.
Additionally:
When torque T is in pound-foot units, rotational speed N is in rpm, the resulting power in horsepower is

�[hp]=�[ft⋅lbf]×�[rpm]5252.
{\displaystyle P[{\text{hp}}]={\frac {T[{\text{ft}}{\cdot }{\text{lbf}}]\times N[{\text{rpm}}]}{5252}}.}
[16]
The constant 5252 is the rounded value of (33,000 ft⋅lbf/min)/(2π rad/rev).

When torque T is in inch-pounds,

�[hp]=�[in⋅lbf]×�[rpm]63,025.
{\displaystyle P[{\text{hp}}]={\frac {T[{\text{in}}{\cdot }{\text{lbf}}]\times N[{\text{rpm}}]}{63{,}025}}.}

The constant 63,025 is the approximation of

33,000 ft⋅lbfmin×12 inft2� rad≈63,025in⋅lbfmin.
{\displaystyle 33{,}000~{\frac {{\text{ft}}{\cdot }{\text{lbf}}}{\text{min}}}\times {\frac {12~{\frac {\text{in}}{\text{ft}}}}{2\pi ~{\text{rad}}}}\approx 63{,}025{\frac {{\text{in}}{\cdot }{\text{lbf}}}{\text{min}}}.}
 
Yep, tried that. I've tried slow in/fast out, maintaining corner speed and hitting apexes, overshooting and late apexing, cutting corners (getting half the car over the sausages), ballast forward, ballast at the rear, TC on, TC off, raked stances, etc. Can't go any faster.
Which tune are you using and what's your gearbox set to?
For reference, I'm using a slightly modified Praiano tune with the gearbox set to 250kph.
 
There will be more mechanically minded people that could elaborate and even Google will help, but I think:
  • Horse power is the amount of work (as in force) required to move a certain weight over a certain distance
  • Torque is a turning force separate and different from horse power.
Horsepower is merely a calculation of torque and RPM, which is why every dyno sheet will have the 2 lines intersecting at exactly 5252 rpm.
The formula is HP=TQ x RPM/5252

Inspired by another poster's setup, I unequipped the Racing Muffler, Racing Manifold, and Racing Filter, and then fiddled with the ECU and power restrictor to get back to the HP I was at before, which was 442. What I found strange is that I think I was faster because that setup actually offers a bit more torque, despite having the same amount of power. Could someone explain that? I think HP is a calculated when you simply multiply the torque by the RPM.

So what I think this means, is that those three parts allow the engine to rev higher, and when they're uninstalled, the torque needs to be higher to get to that same HP metric.

EDIT: Does the size of the rear wing you install in GT Auto really matter? E.g. low/medium/high? I would've though that any of the three custom wings would offer the same ranges of potential downforce settings, but I just wanted to check.
No matter which parts you choose, you can get the HP to the same number. But the parts will change how the engine got to that number and how it delivers the power below the peak. Also, using the ECU to cut power will lower the torque more than the restrictor because the ECU is cutting power everywhere while the restrictor should (And seems to be) just restrict airflow which is mostly just affecting the upper RPM so will affect the torque curve less.
So the NA setups will want to rev to build power while the charged ones should build more torque but fall on their faces. Likewise the higher you boost the power before restricting it will affect your shift point as it will move the peak HP point further down the rev range. However, GT doesn't show the RPM at which the power is made, only gives the upper and lower numbers.
 
zjn
Finally:
I feel a bit guilty and disrespectful in writing about my difficulties in using a certain setup, and I would be sorry if it sounded like complaining, so I am writing once and for all THANK YOU to all those who provide their time and skills to enable those like me to compete using their setups.
I don't think that is taken as disrespectful at all. This forum is a very welcoming, helpful and encouraging place.

At least that's how I perceive it.😇
 
Also, using the ECU to cut power will lower the torque more than the restrictor because the ECU is cutting power everywhere while the restrictor should (And seems to be) just restrict airflow which is mostly just affecting the upper RPM so will affect the torque curve less.
Thanks for answering this question that was present in my head each time I fiddled with those two, as they both seem similar and have a direct impact on max HP.
 
Last edited:
Which tune are you using and what's your gearbox set to?
For reference, I'm using a slightly modified Praiano tune with the gearbox set to 250kph.
I've tried Praiano's, then I modified it a bit to try to make it work better for me. Then I tried Mistah's and tried a modified version that may work better for me. Then I tried SDI's and tried some slight adjustments to try to make it better for me. Then I tried Kei's (from YouTube) and that one was like driving on ice. All of them drive slightly differently (Kei's was a complete departure from the other 3) but none of them made any significant difference over the other. All of them got me in to the low 31's easily, but :30's got progressively harder. I can hit :30.2's again but can't get any faster.
 
@W1gglyStyl3 @sdi_03 I’ll stop tagging you soon but once again, thank you for this magic! I love W1ggly’s version and it drives so perfectly with CS OFF. Plus I’ll never not enjoy saying or typing his username.

It is FAST (for me). A nice clean lap but almost every corner I’ve done better. I’m not going to say 1:26’s are in sight but where do you go from here as a target? I was 115th in the NSX/Daytona TT. Do I dare dream of top 100?? 🤓

@Gomario JSP forget the kitchen and get on this tune and have some fun!!

BC8135F6-750C-40E3-B334-BFCF0394D684.jpeg
 
Haven't had a chance to get on since I did the 3 lap test of all the previous tunes (Finished with a 1:28.6 anyway), but all these 27's makes me want to try the latest ones this weekend!
Top row is who is credited for putting in the work. If anyone doesn't want their tune listed like this please PM me and I will happily delete it from here. Also recommend anyone who uses these tunes to find a way to thank whoever did it so they know they are appreciated and hopefully keep putting in the work to help all of us part time players. Also if you have revised your tune since this post just let me know and I will update the info.
I've updated the sheet moving the seemingly more popular ones to the front and added the ones from @W1gglyStyl3, @sdi_03 2.0, TheKia25 and @Exosum.

Edit: Updated the @praiano63 tune to his latest. RED is the updates

W1gglyStyl3SDI_03 2.0SDI_03Praiano63 Mistah_MCATheKie25ExosumGT Italia (YT)Jeje6410DazzerelliDjolliea
Weight Distribution:51//4951//4951//4951//4952//4854//4651//4951//4951//4953//4751//49
Front: Sport Soft
Rear: Sport Soft
(Fully Custom Suspension)
Body Height Adjustment:90//18490//18490//175130//190110//12085//19090//184115//135113//128115//19090//160
Anti-Roll Bar:8//108//108//105//84//69//78//108//74//54//65//5
Damping Ratio (Comp):35//4035//4040//4036//3530//3036//3535//4034//3335//3535//3530//30
Damping Ratio (Exp):45//5045//5030//5050//5040//4045//4545//5044//4345//4545//4540//40
Natural Frequency:3//1.853//1.83//1.83.2//3.353.2//3.352.4//2.553//1.82.8//2.72.4//2.452.45//2.42.7//2.95
Negative Camber Angle:1.2//11.2//.61.2//03.5//5!!! (I think they call this stanced)1.5//1.53.4//3.71.2//.61.5//21.5//22//2.52//2.5
Toe Angle:0//.10//00//0.1//.20//0.2//.220//00//.2-.06//.24.05//.3.1//.2
(Fully Custom LSD)
Initial Torque:12121260551215557
Acceleration Sensitivity:86060581560155810
Braking Sensitivity:10383860545386020540
Aerodynamics : F // R
Downforce:120//220120//220120//220120//220120//212120//220120//220120//220120//210120//21090//220
ECU
(Fully Custom Computer)
Output Adjustment: 91 %1001008591999994899110086
Performance Adjustment :
Ballast: 57 kg5757575757575757575757
Ballast Positioning: +504550505035-20505050050
Power Restrictor: 70 %8787927071717084708770
FC TransmissionFC RaceFC RaceFC RaceFC RaceFull CustomFC RaceFC RaceFull Custom
Top Speed:250250300260290230
1st:2.6672.6673.942.6672.8713.342.6672.8712.871
2nd:1.6941.6942.5482.162.1782.3192.0662.1782.178
3rd:1.3321.3322.0141.8331.8471.7251.641.8471.847
4th:1.0931.0931.6761.6041.6111.3420.7881.6111.611
5th:0.930.931.421.4231.4441.0930.5561.4441.444
6th:0.8310.8311.2421.2621.3020.9310.421.3021.302
Final:553.2043.5032.7383.752.7352.7382.738
SUPERCHARGER
Intercooler: --RaceRaceRace
Supercharger:LS SupHS SuperHS SuperHS SuperHS SuperHS SuperHS Super
INTAKE & EXHAUST
Air Cleaner:RaceRaceRaceRaceRaceRaceRaceRaceRaceRace
Silencer:RaceRaceRaceSemi raceRaceRaceRaceSemi raceRaceRace
Exhaust Manifold:RaceRaceRaceRaceRaceRaceRaceRace
BRAKES
Brake System:CarbonCarbonCarbonRaceRaceCarbonRaceRaceRaceRaceCarbon
Brake Pads:RaceRaceRaceRaceRaceRaceRaceRaceRaceRaceRace
Front / Rear Brake Balance:0000000-200-2
DRIVETRAIN
Clutch & Flywheel: --RaceRaceRaceRaceRaceRaceRace
ENGINE TUNING
Bore Up: installedYesYesYesYesYesYesYesYesYesYes
Engine Balance Tuning:YesYesYesYesYes
Polish Ports:YesYesYesYesYes
High Lift Camshaft:YesYesYesYesYes
Racing Crank Shaft:YesYesYesYesYes
BODYWORK
Weight Reduction:AllAllAllAllAllAllAllAllAllAllAll
Increase Body Rigidity:YesYesYesYesYesYesYesYesYesYesYes
 
Last edited:
2Quickrides
JEJE: Everywhere but the corkscrew, brake early. If you think you're braking early enough, you're not. Trail braking is tough as the front end grip just isn't there. Stable once into the turn, but super late to get on the throttle or it'll spin. If you are smooth and carry a lot of corner speed this will work for you.
First of all I want to thank you for having tested all the cars of the tuners and for having made a return of all that you could feel while trying them. After thank you for your feedback for my car. If I understand correctly, it lacks grip at the front, which prevents it from accelerating early enough in the corkscrew?
By the way, I use the TC at 1 because with the TC at 0, it's just impossible for me to control the rear of the car when exiting corners during acceleration. I'm not a driving alien so I was only able to do the 1:30:140 time with mistakes on the turn after the corkscrew. But I think 1:29 is achievable.
Sorry I missed this one! Actually for some reason the corkscrew is the only place I didn't have to brake early with it. The tune suffers the same understeer problem as many of the other ones, but just have to change the way you drive to make it work.
I only did 6 laps total with it, but I did a 1:29.5** with it with TC at 1, high 29's without, and optimal was low 29's. With more time it's capable of 28's.
 
Back