ATAQ - a time trial experiment

  • Thread starter Thread starter Gorefast
  • 362 comments
  • 27,996 views

Test Poll about the track of next round of ATAQ

  • Road Atlanta

    Votes: 6 50.0%
  • Suzuka short

    Votes: 1 8.3%
  • Brands hatch GP

    Votes: 5 41.7%
  • something different

    Votes: 0 0.0%

  • Total voters
    12
  • Poll closed .
THOUGHTS ON WEIGHT
Definitely light cars are strong this round. Blip's 1:12.4 in a fly-weight NSX proves that (:bowdown:). I ran a marginally heavier one to 1:12.5 last week.

Also, I tested the Ford GT40 MKI which is definitely, definitely, not a racecar with the roadcar tag:lol: I started with ~1300kg and kept lowering the weight. The more weight I took off, the better the lap times.The argument against this says that I was just learning the car and track, but either way, the lighter car was on the edge of 1:12s with 1966 brakes.

I believe low weight helps with braking distances and cornering speeds; maybe because you're able to get the car settled and back on the throttle more quickly.

AWD cars don't seem to care, perhaps because their traction advantage already allows them to get on the power more quickly as long as the driver can line up their corner exit correctly. But I haven't tested a lighter Gallardo yet. Oh, and I am running the Gallardo because it looked quite fast in Round 3. It rotates nicely too. Maybe it can be faster than the Audi R8 V10 🔥

POWER TUNING
I use both the ECU and Power Limiter. I decrease HP using the Power Limiter first because that leaves me with the same horsepower, but more torque. That's why my setting often look like ECU: 100 / Power Limiter 70.

Not sure whether having more torque at the same power is good for all cars, but it definitely helped the rev-happy 991 GT3 and my R8 V10 - because they don't have much torque to begin with. I noticed my higher torque ghost consistently pull away from me in the big hairpin at Road Atlanta no matter how well I took it.

Example of this maybe not working: the Pagani Huayra should be faster than it is with 500+hp / 1084nm (800lb-ft) of torque :lol:

@Gorefast and @ikon_313
My laziness has pushed me to create a spreadsheet conversion tool.

The formula I'm using is Weight (KG) / 2.6084. You should be able to input a car's desired weight and get the regulation power. I've attached a Microsoft Excel file. Please double check my math.

I am near the end of my busy real life week, and have had zero time / energy to test cars this week. Looking forward driving and tuning again in a few days.
Unfortunately I cannot use Excel at the moment but as I added a bhp number at the rules on first post I used a conversion factor of 1.34102 that led to 2,6099 (=2,61). What did you different or I wrong?

Thank you for your input that would help If I would have seat time! The coming two weeks might be better...
 
THOUGHTS ON WEIGHT
Definitely light cars are strong this round. Blip's 1:12.4 in a fly-weight NSX proves that (:bowdown:). I ran a marginally heavier one to 1:12.5 last week.

Also, I tested the Ford GT40 MKI which is definitely, definitely, not a racecar with the roadcar tag:lol: I started with ~1300kg and kept lowering the weight. The more weight I took off, the better the lap times.The argument against this says that I was just learning the car and track, but either way, the lighter car was on the edge of 1:12s with 1966 brakes.

I believe low weight helps with braking distances and cornering speeds; maybe because you're able to get the car settled and back on the throttle more quickly.

AWD cars don't seem to care, perhaps because their traction advantage already allows them to get on the power more quickly as long as the driver can line up their corner exit correctly. But I haven't tested a lighter Gallardo yet. Oh, and I am running the Gallardo because it looked quite fast in Round 3. It rotates nicely too. Maybe it can be faster than the Audi R8 V10 🔥

POWER TUNING
I use both the ECU and Power Limiter. I decrease HP using the Power Limiter first because that leaves me with the same horsepower, but more torque. That's why my setting often look like ECU: 100 / Power Limiter 70.

Not sure whether having more torque at the same power is good for all cars, but it definitely helped the rev-happy 991 GT3 and my R8 V10 - because they don't have much torque to begin with. I noticed my higher torque ghost consistently pull away from me in the big hairpin at Road Atlanta no matter how well I took it.

Example of this maybe not working: the Pagani Huayra should be faster than it is with 500+hp / 1084nm (800lb-ft) of torque :lol:

@Gorefast and @ikon_313
My laziness has pushed me to create a spreadsheet conversion tool.

The formula I'm using is Weight (KG) / 2.6084. You should be able to input a car's desired weight and get the regulation power. I've attached a Microsoft Excel file. Please double check my math.

I am near the end of my busy real life week, and have had zero time / energy to test cars this week. Looking forward driving and tuning again in a few days.
I did a 1.12.0 in the NSX as well... but decided to keep this replay a secret 😉

(No, actually I wanted to hit 1.11 before sharing but it didn't happen... I was only .008 away but once I started to mess about with setup I got a bit lost...)

The car is really nicely settled around the fast turns, the final turn is basically flat and it slides nicely with all four wheels, no snapping. Maybe I'll put a turbo back in and see what happens...
 
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Unfortunately I cannot use Excel at the moment but as I added a bhp number at the rules on first post I used a conversion factor of 1.34102 that led to 2,6099 (=2,61). What did you different or I wrong?

Thank you for your input that would help If I would have seat time! The coming two weeks might be better...
No worries. I can convert to other file formats if needed. As for the math, I think it's me being inconsistent with rounding when working with conversions. Interestingly, I am definitely using the 1.34102 rate. I've actually memorized it because I use it so much :lol:

As for @bliprunner, I and my pit crew are cheering for your NSX. Heck yeah!!🔥🔥
 
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