tuning quirks, questions

[x5312]

Two things:

First, if I use a car tuned to 550pp for a while, then I go to tuning maintenance or whatever its called and do an oil change, chassis rigidity restoration and engine overhaul, then I have to back off the power because it comes out over 550pp. Then I use the car again for a while and repeat the above, I have to again back off the power output because again its over 550pp. So whereas originally I might have the car at 92% power output, now I can only get say maybe 88%. Seems to me its a downward slide that makes no sense. If those 'restorations' bring the car back to original condition then why should I have to keep backing off the power time after time?

Secondly, when you buy a custom rear wing you can choose large or small and you can make it wider or narrower, but whether you have the narrowest small wing or the widest large wing the down force settings in the tuning section remain the same, 0-20. So why wouldn't you get more down force with a larger wider wing? Is it just aesthetics?

 

[Sick Cylinder]

Two things:

First, if I use a car tuned to 550pp for a while, then I go to tuning maintenance or whatever its called and do an oil change, chassis rigidity restoration and engine overhaul, then I have to back off the power because it comes out over 550pp. Then I use the car again for a while and repeat the above, I have to again back off the power output because again its over 550pp. So whereas originally I might have the car at 92% power output, now I can only get say maybe 88%. Seems to me its a downward slide that makes no sense. If those 'restorations' bring the car back to original condition then why should I have to keep backing off the power time after time?

Secondly, when you buy a custom rear wing you can choose large or small and you can make it wider or narrower, but whether you have the narrowest small wing or the widest large wing the down force settings in the tuning section remain the same, 0-20. So why wouldn't you get more down force with a larger wider wing? Is it just aesthetics?

The wing sizes and types are just aesthetic.

An oil change increases the power of the engine (PD use "magic oil" which increases power significantly whereas in real life any changes in power would be negligible). After the oil change the engine starts to wear until it needs another oil change and after several oil changes an engine restoration.

 

[x5312]

Thanks SC. But what I still don't understand is the need to reduce the power output. By the time I need an oil change or engine overhaul, it's not like I can bump the power output up even 0.01% without exceeding 550pp before performing the restorations, so why should I have to power down after performing those restorations?

 

[Sick Cylinder]

Thanks SC. But what I still don't understand is the need to reduce the power output. By the time I need an oil change or engine overhaul, it's not like I can bump the power output up even 0.01% without exceeding 550pp before performing the restorations, so why should I have to power down after performing those restorations?

I'm guessing that you didn't originally do an oil change before tuning the car to 550PP. If you do then let the engine wear and do another oil change I think it goes back to the original level.

In GT5 I used to run my cars in on B spec after doing an oil change then do a second oil change which would raise the power to give me an advantage. I thought that running in had been abolished in GT6, but if not it would also explain your findings.

 

[Tim Black]

Well from what I can figure of it is, when u change your oil gives u more power witch means your engine runs more efficient and don't have to work as hard to make that power. So I kind of think of this as a monitor to when my oil needs to be changed. Get the power limiter back up to a hundred and change oil again, then repeat till it need rebuilding.

 

[TRL_Andromeda]

Two things:

First, if I use a car tuned to 550pp for a while, then I go to tuning maintenance or whatever its called and do an oil change, chassis rigidity restoration and engine overhaul, then I have to back off the power because it comes out over 550pp. Then I use the car again for a while and repeat the above, I have to again back off the power output because again its over 550pp. So whereas originally I might have the car at 92% power output, now I can only get say maybe 88%. Seems to me its a downward slide that makes no sense. If those 'restorations' bring the car back to original condition then why should I have to keep backing off the power time after time?

Secondly, when you buy a custom rear wing you can choose large or small and you can make it wider or narrower, but whether you have the narrowest small wing or the widest large wing the down force settings in the tuning section remain the same, 0-20. So why wouldn't you get more down force with a larger wider wing? Is it just aesthetics?

Ehrm...:
https://www.gtplanet.net/forum/threads/gt6-–-oil-engine-and-high-mileage-hp-deterioration-guide.302338/

In short, doing an oilchange bumps the power by 5% for 200km, then wears off untill 300km, then its back to original.
At 5 000km the oil starts to deteriorate, thus loosing power. doing an oilchange fixes this for another 5000km. (including 5% boost for 200km)

At 5 300km the engine starts to deteriorate, thus loosing power. doing an engine overhaul fixes this for another 5300km. (including 5% boost for 200km)

At 10 000km the permanent engine deterioration kicks in, and the car is starting to slowly (glacier drifting slowly) loose power. THIS CANNOT BE FIXED. This deteriorates at the rate of 0.000025% per kilometer, and is normally not really a problem. (for example, if you have a 300bhp car, it takes a whopping 12 000 km just to loose 1bhp). But if you want to keep absolutely 100% of the power, buy a new car.


Regarding the wing:
If applied to the same car, all wings affect the physics exactly the same, regardless of their size or shape.
The same wing can affect 2 different cars differently though (For example, applying it to the Lexus IS-F gives you 50 units of downforce, instead of the normal 20.

 

[kn00tcn]

should i 'worry' about restorations & oil changes? in both games, i've been letting the cars age & havent particularly noticed problems or increased difficulty

 

[Sick Cylinder]

should i 'worry' about restorations & oil changes? in both games, i've been letting the cars age & havent particularly noticed problems or increased difficulty

If you are racing online where every fraction of a second counts then I would do an oil change. I always do one and a clean before my weekly race meeting regardless of whether it is needed or I have noticed any deterioration as it only costs 250 credits plus 50 for the clean. I do a body restoration and engine rebuild whenever the maintenance section indicates that they are starting to deteriorate - for the most expensive cars those are 0.5m credits, but it is easy enough to earn those credits back.

 

[FPV MIC]

should i 'worry' about restorations & oil changes? in both games, i've been letting the cars age & havent particularly noticed problems or increased difficulty

If you are doing PP racing you should not do an oil change when you buy the car unless you can't reach the desired PP with performance parts.

 

[Saf1]

Bear in mind increase rigidity works as normal but restore rigidity also changes your oil! So that's why you get a power increase if you do that

 

[Aggserp4]

What does ''increase rigidity'' do? I tried it but by the looks of it it does nothing

 

[CBH]

What does ''increase rigidity'' do? I tried it but by the looks of it it does nothing

It improves the handling around corners.

 

[ButtKick]

What does ''increase rigidity'' do? I tried it but by the looks of it it does nothing

In all of my testing it tightens the chassis and as hall90 said it can improve cornering.
However in my testing I've found that it's most effective on MR cars, Making them less twitchy.
FR and 4WD it makes a difference, But isnt as needed as on a MR.

I never use it on FF cars though, FF's drive better when they are able to flex.