A Full test of engine overhaul & body rigidity upgrades!

  • Thread starter Thread starter grayson7614
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RobGT81
+1 :)

This is a car game, and people here clearly dont understand cars
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Hi Rob,
Thanks for your input.
GT5 is a car 'game' and therefore (possibly) not as real as some of us may like it to be... I happen to think that it's quite good though!
Understanding cars and understanding the 'game' are two quite different things don't you think?
I figured that most people watching this thread may be more interested in the 'game'...
 
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grayson, I am performing a similar test, I am running endurance races and rebuilding the engine on the Formula Gran Turismo.

It seems after a certain mileage even doing a engine maintenance / oil change will not restore its max HP.

For example the max HP I saw on the FGT was 935.

Now after the said mileage the max HP after engine maintenance / oil change:

Max HP = 932 HP.

Now I am not sure whether there is a permanent loss of HP after a certain mileage or the engine needs to be "broken-in" again but I will report my findings in this thread:

https://www.gtplanet.net/forum/showthread.php?t=141569&highlight=permanent
 
avedis
The cost of chassis repairs are stupid.... its just a video game
Reality should just remain in important features. In the physics and damage (fail) department. Its boring as it is to race. Simply doing lap times is just becoming a pain in the ass.
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Have you ever played a racing game semi-seriously?
 
johnnyutah
grayson, I am performing a similar test, I am running endurance races and rebuilding the engine on the Formula Gran Turismo.

It seems after a certain mileage even doing a engine maintenance / oil change will not restore its max HP.

For example the max HP I saw on the FGT was 935.

Now after the said mileage the max HP after engine maintenance / oil change:

Max HP = 932 HP.

Now I am not sure whether there is a permanent loss of HP after a certain mileage or the engine needs to be "broken-in" again but I will report my findings in this thread:

https://www.gtplanet.net/forum/showthread.php?t=141569&highlight=permanent
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When you get 932hp go race and check the hp again there is a break in period. has nothing to do with the expensive/useless chassis restore option.
 
Ehm ... actually ... i drove and drove and drove... car understeer -> body rigidity upgrade -> car is fine ....

explained in less than 20 rows & hours of testing

but ... the link is fine !
 
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If the car drops power and an oil change doesnt restore it you better revise the engine

If the car handles strange on the straights (trying to go left and right for no reason - and really easy to spot) and a car wash doesnt change that you better revise the chassis

It is very simple and even thow I appreciate the OPs work it doesnt have to be tested at all - you will feel it very clearly - either the power not increasing or the strange handling.

Its always been like that in every GT game the only thing thats diferent is that before you only got asked cash to do so after 1000 miles and no you just take for a spin and....
 
I gained 35 HP after an engine rebuild on my GT Formula this morning. It had 904 HP when I bought it and changed the oil. After several runs at Indy it was down to 899 HP so the engine rebuild worked out, it showed 934 HP after rebuild. I haven't done the chassis rebuild but I did do the 20K chassis strengthening as soon as I bought it. I'm not really inclined to use 500K on the chassis.
 
dont know if its been mention before but doing engine overhaul will also change your oil, so you wont be able to change your oil after that, saving you 250cr.
 
RogsR34UK
After about 1400 miles my Veyron was beginning to feel bad. I did the chassis rebuild which made a difference.
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The most amazing thing about GT5 is...that someone actually put that many miles on the Veyron.

Did you just not know that there are other cars in the game or something?

:p
 
johnnyutah
Here is an updated report:

After 1500 miles the horsepower on the Formula Gran Turismo dropped to 895 (without oil change)

After doing an engine maintenance the HP increased to 930, a drop of 2 HP from the previous engine maintenance.

Full report can be found in this thread:
https://www.gtplanet.net/forum/showthread.php?t=141569&highlight=permanent&page=2
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Great info' johnny,
As mentioned earlier in the thread though; your FGT receives a 250 credit oil change as part of the 500,000 credit engine re-build which gives roughly a 30-35 BHP increase in power.
I've given my FGT several oil changes now. Bob has dragged it from 4,500 miles to almost 9,000 (so 4,500 new miles driven)! With each oil change my BHP is still returning to 935... Or as it was after my one and only engine re-build so far at 4,500 miles (what the car had already clocked when I bought it)...
... Nice to know someone else is burning the crdts!:cheers:
 
To OP, for your hard work and wast of money!
thank_you_poster-p228864855402439059trma_400.jpg


I only keep the oil change for now:)
 
The refresh option in GT4 were a waste, I would imagine you would need them only after many 10,000s of km. Same thing here.
 
MowTin
Couldn't you buy a cheap car, overhaul its engine and then test?
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One and a half Indy 500's for Bob to reach level 30 and unlock the Vettel Challenge and i'll give it go, as you say with something less expensive!
Cheers
 
To OP, I felt the same way in Gran Turismo 4 With my LMP C60 Courage. where as i did the rigity upgrade and other expensive stuff and i noticed at very high speed it become very unstable and shaking! as i can feel it on my wheel and my wheel isn't lying. And maybe because its too light? and too unbalance! i don't know!. I just recommend to stay away from this feature in what ever situations. Weather you feel you over used your car or crashed it all the times.
 
MowTin
Couldn't you buy a cheap car, overhaul its engine and then test?
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It is more efficient for me to run indy 500 + other races in the Formula Gran Turismo because it gets the results fast.

Driving a slower car (compared to the FGT) for the same amount of miles would take exponentially more time.

I have now purchased another FGT from the online dealership and will proceed to put mileage on it in smaller increments with the appropriate oil change/ engine maintenance when needed and see if this method will prevent permanent horsepower loss.

P.S. At this level of the game credit is not an issue, in fact I've hit the cap twice.
 
calan_svc
The most amazing thing about GT5 is...that someone actually put that many miles on the Veyron.

Did you just not know that there are other cars in the game or something?

:p
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lol... 1400 miles isn't bad at all, my C6 ZR1 RM has 3,313 miles. I have 96 wins in that thing and it has been my breadwinner/workhorse.
 
Hi guys,
My FGT is now up to just under 11,000 miles having bought it at 4,500 miles, at which time I had performed the engine re-build.
At 9,000 miles (or 4,500 after the re-build) the oil change was still returning the BHP to 935, (the maximum I've seen).
Now at 11,000 (6,500 after re-build) the oil change is only returning the BHP to 910!
 
Xavier2342
calan_svc
The most amazing thing about GT5 is...that someone actually put that many miles on the Veyron.

Did you just not know that there are other cars in the game or something? :p
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lol... 1400 miles isn't bad at all, my C6 ZR1 RM has 3,313 miles. I have 96 wins in that thing and it has been my breadwinner/workhorse.
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Well yeah... but that's a ZR1 RM; not.... a Veyron. :lol:
 
explain how my viper was 992 and now its 972 hp it only has 300 miles on it and it lost the hp after a oil change overhaul and chassis rigidity job
 
grayson7614
Some info’ on engine re-builds and chassis strengthening

Having not found a definitive answer as to whether or not the engine and chassis re-builds actually work, I figured this may deserve its own thread… Sorry if I’m wrong!
After finally acquiring a Formula GT I decided to run a few tests. For A-Spec I used the 10 lap Indy’ circuit from the Dream Car Championship and for B-Spec I used the same race but over its 22 lap distance.
For the B-Spec races I issued no instructions to my level 26 Bob.
I ran each race twice. The first run before the expensive engine and chassis re-builds and the second run after having them installed… At a cost of 1 million credits!
At the time of purchase my Formula GT had already clocked up 4,522 miles or 7,277 kilometres. Before the first run I gave the Formula GT an oil change, (which increased the BHP from 880-925) bought racing-soft tyres (for A-Spec only) and installed the ‘rigidity’ upgrade.
After installing the engine and chassis upgrades the BHP increased to 935!

Here are the A-Spec results
1st run best lap-00:38.423
1st run total time-06:40.354
2nd run best lap-00:38.402
2nd run total time-06:34.848

Here are the B-Spec results
1st run best lap-00:42.542
1st run total time-16:50.973
2nd run best lap-00:42.444
2nd run total time-16:47.365

Hope this is useful!

Please feel free to draw your own conclusions… I can’t help but feel like I’ve just wasted 1 million credits!
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I'm sure some real-life F1 teams wish they could spend a million bucks for these small lap-time savings. :dopey:
 
I'm just wondering if the chassis rigidity improvement does anything either? The one that costs about 20 in the same place where you get weight reductions and bonnets. Didn't really feel any change in the mazda rx8. But I only did couple of laps and didn't do a proper comparison either..
 

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