Anomoly

  • Thread starter AlfaAlfa
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AlfaAlfa

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I have run into a problem I can't solve and I'm hoping somone can show me a solution I've missed or possibly confirm that this has happened before to someone else.

I have four Audi S4 '98's

a blue one with 22029 miles
a brown one with 21129 miles
a yellow one with 35307 miles
a black one with 24602 miles

all have 408 hp and weigh 1253 kg

They have identical setups (which I have checked over and over and over and then re-checked a few more times just to be sure).

My problem is the blue one is over a second per lap quicker on Fuji 90's (my test and tune track). Not only is the difference visible on the clock but I can feel it while driving. It feels exactly like it has softer tires on it than my other S4's. Since they are all using hard sports tires for testing (which I have double checked over and over and over...) I know tire difference doesn't account for it.

I've tried different wheels (which shouldn't affect performance anyway).

I've made sure each one has had a chassis refresh.

The only theory I have right now is that somehow my blue S4 is stuck on softer tires despite what the parts menu says. I've tried changing back and forth between tires to see if it makes a difference when I set it back to hard sports tires but there's no doubt the blue one stays faster. It clearly brakes better and holds the road better under lateral pressure.

This really bothers me but I bet it would bother online racers even more if there is anything to this. Hopefully somone can answer back and say "Oh it's just your such and such, do this and everything should be allright".
 
My initial thought is that you have applied the rollcage/body strengthening to each of the 4 cars, but on the quicker one you applied it after doing the chassis refresh.

It makes a difference depending on which order you do the upgrades in. Do the refresh first and it resets the chassis back to brand new, but do the strengthening first, and the refresh will only reset it to the state of the car at the point when strengthening was applied.

Hope that helps. 👍
 
^ A good possibility. GT4 has a glitch that if you apply the roll cage when the chassis is old (pre-refresh), and then do a refresh the car will stay distorted permanently.
 
er... the blue one was a company car, so the owner took it to be serviced at the Audi shop every 10,000 miles or so... as opposed to the others, which all have had many owners and they've barely been taken to an oil change.
 
Sorry for spelling "anomaly" wrong.

My Audi's don't have roll cages. I did the chassis refresh but not the roll cage / strengthening.

I re-purchased the cars using the trade function and am testing those versions. So far they are the same, the blue one doesn't seem to be faster as a stock car after the trade.
 
AlfaAlfa
Sorry for spelling "anomaly" wrong.

My Audi's don't have roll cages. I did the chassis refresh but not the roll cage / strengthening.

I re-purchased the cars using the trade function and am testing those versions. So far they are the same, the blue one doesn't seem to be faster as a stock car after the trade.
Click to expand...

It might be mileage then.
 
Did you change the oil in all of the cars?

Mabey you only changed the blue one's oil, and not the others.. Only thing I can think of. :indiff:
 
Blue Audis go faster then the other colors. So now, if you have a blue Audi, you automatically go faster then the others. DUH! It makes total since. But WHY! does the Blue Audi go faster? Because Blue paint is lighter in weight! DUH!
 
Try checking to see if all four are running sports tires. My hunch was that the blue has racing tires.

I'm not sure, it would be pretty easy to realize different tires:confused:
 
It would be interesting to know if aspec points are effected - can you try entering them in a race against the same ops to see if there is a difference? Ideally it should be a race where you are offered somewhere between 80-150.
 
It isn't mileage or oil changes.

from original post:

I have four Audi S4 '98's

a blue one with 22029 miles
a brown one with 21129 miles
a yellow one with 35307 miles
a black one with 24602 miles

all have 408 hp and weigh 1253 kg
Click to expand...

If it was mileage, I would expect the brown one to be faster. They're all in the same ball park anyway. Not like one is at 12 and the rest at 90,000. If one was alot older its horsepower would be less.

If the oil was dirty on some and not others then the horsepower wouldn't be exactly the same on each. Besides I have changed the oil very recently on each in order to try and find the culprit here.

I just finished trying out all my tires and the blue one is faster on each type of tire. Since the black, yellow, and brown S4's are all the same I just used the brown to represent.

--------------------------BLUE---------BROWN

hard sports tires:_______ 1'34.561 ____ 1'35.910
medium sports tires:____ 1'34.194 ____ 1'35.339
soft sports tires:_______ 1'33.012 ____ 1'34.431
super hard racing tires:__ 1'31.357 ____ 1'32.397
hard racing tires:_______ 1'29.775 ____ 1'31.126

I guess you can write off these times as random shots in the dark or as "self fulfilling prophecy" type of things brought about by skewed expectations or even as an out and out pile of b.s. but I'm really at a loss and this is bugging me! I could feel the difference in the cars more and more clearly the more laps I did. They truly seem like two different cars and I can't find one discrepancy between them.

Tomorrow I will try doing weight reduction AFTER chassis refresh since I usually do it the other way around. I really doubt that will make a difference.

By the way, my re-purchased version of the blue S4 performed the same as the brown, black, and yellow ones once I set it up to be identical. I must be missing something...
 
Moloch_horridus
It would be interesting to know if aspec points are effected - can you try entering them in a race against the same ops to see if there is a difference? Ideally it should be a race where you are offered somewhere between 80-150.
Click to expand...


Good idea :-) I will try this tomorrow too if I have time.
 
Could you do something like the drag strip with each car to see if theres a difference? Of course the difference might be down to handling which this test wont show but well... it's an idea at least. 👍
 
Have you checked the ballast on each car? Even if they are all set to 0kg, one may have weight moved forwards or backwards.
 
I remember reading a while back that there is actually such thing as engine damage in the game. Not chassis flex or dirty oil, but apparently you can actually cause permanent (if minor) damage to the engine if you over-rev too much. I remember someone testing it with the Team Oreca Viper - they compared a brand new one to one that had sat with the engine bouncing off the rev limiter for several minutes, and I think there was a difference.

Forgive me if I can't find the thread where it was posted or anything, but perhaps the blue one hasn't been driven as hard as the other three? As far as I can remember, the engine damage thing isn't a huge factor but it does exist, and it's permanent (can't be removed through oil changes or a chassis refresh).
 
Is the blue car nice and shiny, as in has it been washed recently?

I think I read somewhere that this can lead to reduced drag, and so better lap times.
 
MasterStorm
Could you do something like the drag strip with each car to see if theres a difference? Of course the difference might be down to handling which this test wont show but well... it's an idea at least. 👍
Click to expand...

I tried this a couple times but I'm more inconsistent launching on the dragstrip than I am running Fuji laps so I wasn't really getting any information.

None of the S4's have any ballast added at all.

As far as excessive rpm engine damage, who knows what the history of a car is when you buy it from the used car menu? Since that time though, I'm sure my driving has been consistent among all the cars. I have had the blue one the longest though and have put probably three times as many miles on it myself than I have the other ones...

Car-less
Is the blue car nice and shiny, as in has it been washed recently?

I think I read somewhere that this can lead to reduced drag, and so better lap times.
Click to expand...

My cars are all clean! I can't stand a hint of dullness in the finish and I wash them probably much more often than I have to :-)

Well, time to get aspec points comparisons...

Moloch_horridus
It would be interesting to know if aspec points are effected - can you try entering them in a race against the same ops to see if there is a difference? Ideally it should be a race where you are offered somewhere between 80-150.
Click to expand...

It's funny that you said between 80-150, that is almost exactly the difference between the cars on hard sports tires...

Entering the cars in the Tuning Car Grand Prix Apricot Hill reverse race with identical opponents:

---------------------- blue --------------- brown

standard economy __ 166 pts ____________ 200 pts
standard comfort ___ 137 pts ____________ 199 pts
standard road ______ 110 pts ____________ 173 pts
sports hard ________ 86 pts ____________ 150 pts
sports medium ______ 74 pts ____________ 138 pts
sports soft _________ 62 pts ____________ 127 pts
racing super hard ____ 40 pts ____________ 106 pts
racing hard__________ 18 pts ____________ 86 pts
racing medium _______ 10 pts ____________ 67 pts
racing soft __________ 9 pts _____________ 48 pts
racing super soft _____ 8 pts _____________ 31 pts

I've just finished double checking all the parts and settings (again) and I swear I can't find any difference. It looks like somehow the tire quality on the blue one got bumped up. Sports tires act like racing tires and racing tires are like dream tires or something!
 
Okies... First thing - use the edit button to add information to your posts if you're still the most recent poster. Second thing - use the green icon in the bottom right of posts to quote multiple other posts. I've merged your posts so you can see what this should look like.


Now we're off the house-keeping, do you have any way of sending me your gamesave file (Xport, Sharkport, MaxDrive)?
 
Rats.

Anyway. The only things that affect A-Spec points are:
Power.
Weight (inc. Ballast).
Tyre grades.
Downforce.

So the only explanations for the apparent performance bonus and concomittant A-Spec point loss are that the car has more power, weighs less, has softer tyres or has more downforce. Without the ability to get your gamesave online for someone else to check, that's the best I can do.

Incidentally, get a MaxDrive.
 
A very good question, I've never noticed anything like this in GT4 💡

Could be due to chassis wear? I know you can fix it but is there a possibility when a car has run so much distance, a chassis refresh is useless?

I can't think of anything else...
 

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