Tuning Questions

[FishHunters]

Hey guys. Have a couple tuning questions for you.

1) How big a difference are the online physics vs. the arcade physics? Tuned the Tuscan speed 6 in arcade. Took it online and it didn't seem to behave the same.

2) Weight reduction vs. Not. I'm gonna guess there's a big school of thought difference here. When it comes to PP it's the same, but Im guessing the addition of different power parts will make a difference.

3) Tubo vs. Engine upgrades - I'm guessing another big school of thought difference here. There probably isn't one RIGHT answer. I'm wondering which makes a bigger speed/acceleration difference in cornering and straights? Thinking the engine helps the cornering and turbo the straights.

4) Understanding low/mid/high rpm turbo. Thinking it's best suited to track and which gear you'll be in the most. Low RPM if you'll be mostly in 1st/2nd gear, mid for 3-4 and high for 5 and above.

Thanks for your help guys! Greatly appreciated as I learn to be a better tuner!

BTW my Lancia Delta is down to 1:06.363 in the seasonal with only ABS 1! Looking to tune it under 1:05.5

 

[XDesperado67]

PP is figured on a bell curve.
For most street cars optimum results are found with weight between 900-1000kg.
Obviously many cars can't get into that weight range but reducing weight to get closer to it will almost always give better performance than adding power to reach a given PP.
On the Power side of things both HP and Torque are figured into the PP equation.
Because of this picking which parts you add can make a big difference. Adding something like a small or medium turbo will bump the torque up, but that bump will occur at lower rpms which may make it harder to utilize.

 

[rams1de]

To add to XDesperado67's post, the RPM adders that will give you more PP per HP are engine tuning, computer, cat, exhaust and high rev turbo.

 

[Motor City Hami]

2) Weight reduction vs. Not. I'm gonna guess there's a big school of thought difference here. When it comes to PP it's the same, but Im guessing the addition of different power parts will make a difference.

3) Tubo vs. Engine upgrades - I'm guessing another big school of thought difference here. There probably isn't one RIGHT answer. I'm wondering which makes a bigger speed/acceleration difference in cornering and straights? Thinking the engine helps the cornering and turbo the straights.

4) Understanding low/mid/high rpm turbo. Thinking it's best suited to track and which gear you'll be in the most. Low RPM if you'll be mostly in 1st/2nd gear, mid for 3-4 and high for 5 and above.

I offered up my theory of these in my tuning guide. https://www.gtplanet.net/forum/threads/motor-city-tunes-gt6.291066/#post-9003797

Working through the suspension suggestions now and hope to start posting by the end of this weekend.