Engine overhaul - real life

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brekehan

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Do you really need to overhaul an engine after only 2,000 miles in real life? Maybe because it is a race car? I know my vehicle has 80,000 miles and really doesn't need a new engine yet...
 
2000 miles @ top speed / red line RPM > 80000 miles cruising at 45 mph and low RPM

Racing at top performance puts a big wear on engines
 
race cars any overhaul is usefull...these inspections and replacement of parts (bearings gaskets rings etc aswell as fresh filters and fluids) not only increases performance ane longevity of the engine but can also help find and assess future problems. To some extent knowledge is needed and money also to replace parts ( head bolts holting the cyliner head to the block) to avoid stretching so if your thinking of doing this at least get the proper tools and profesional advice. Road cars dont really need overhauls as the majority are not being permanently thrashed, some service work is required ie fresh oil and filters etc every 6-12 months depending on milage and use id only rec omend one if something has seriously or about to go wrong and that it be done by a profesional.
 
You can't really compare to real life/ everyday drive vehicle cause we don't really push our car that hard. Reliable car can go 100k+ miles before needing an overhaul.
Race car on the other hand get pushed to the limit therefore needs it earlier. But every racing team have a number of engine to use in 1 season so unless they run out, they won't overhaul their engine either.
 
MiniMarco
F1 engines are built to last the length of the race and are rebuilt after every race.
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Well they used to be... Now they have a 4 race rule for engines.

In the 80's they used to rebuild them after qualifying for the race!
 
Sprint cup engines are torn down every race. They sometimes go through 2 or 3 a weekend. Top fuel and funny car get torn down every 1/4 mile lol.
 
brekehan
Do you really need to overhaul an engine after only 2,000 miles in real life? Maybe because it is a race car? I know my vehicle has 80,000 miles and really doesn't need a new engine yet...
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You do not need to rebuild them every 2000 miles in game either. More like every 4,500-5,000 miles at most and even then it barely shows signs of wear.

And yes in real life racing you would be very lucky to get 2,000 miles on a race engine without rebuilding it. Odds are that it would not just loose 1 or 2 hp but fail completely possibly catastrophically.
 
dabest2500
Slick tyres lasted 1 lap in those days!
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They also put lead weights in their cars to make them heavier at weigh in then take the lead out for the race...allegedly..

APOLOGIES......OFF TOPIC, i know...

👎

On subject of thread, well, a bit nearer the subject of thread, My HKS230r Evo was brand new before I used it in the Suzuka 1000kms, at the end of the race it was well run in, it's now well over 600bhp after an oil change (high rpm turbo kit added aswell).

BUT my Race modified vette ZR1 has started to loose power after just 5000 miles on it, despite very regular oil changes, when I now change the oil, BHP is down 25-30...after just 5,000 miles..??
 
I don't know if the same criteria apply. Race engines in race conditions aren't going to wear at the same rate as street engines in race conditions. I'm not sure exactly what goes into F1/LM/GT engines, but I know top dollar dragster engines are designed to die. They will actually be destroying internals by the time it gets down the track.
 
Firstly, in real life you arent racing your car, you are also not pushing the engine to its limits with compression levels through tuning which results in a higher chance of parts being damaged and faster wear. Racing and road driving are completely different, when you're racing a car you are litterally battering it, everyday road usage is very kind to a car in comparison.

Secondly, if you have done 80,000 miles in your road car then i am sorry to tell you but guess what... It has lost power. Last point, some high performance road cars need to be serviced very often, the Mclaren F1 gets serviced every 9 months in the real world, much is the same with many top end sports cars. Formula 1 engines need to last 4 races (roughly 2000mile life span on them, and they are not rebuilt, they are replaced), though they often give up before that.
 
This needs clarification, race cars, f1, grenade engines etc etc do need rebuilds/replace very fast to stay top notch.

If OP means average non tuned hot hatch/road cars then no, I had an astra 2.0 that I flogged for 5 years and it did 50k miles with me before I scrapped it at 110k miles, the 1.4l I had before that died at 120k miles from pretty much the same abuse.

If I had used racing oil like the game suggest with oil changes I doubt I would have had to rebuild those standard engines even after 50k. (not that i would rebuild a poxy astra engine lol)

It all depends on the tollerances and the quality of the oil that lubricates them.

Even climate, the colder it is the more bang you get on start (dense air), the bigger the bang on a cold engine the more the major thrust faces wear.
 
If properly serviced, modern stock street engines can be driven for several tens of thousand kilometers at full power without losing power or needing a complete overhaul.
Race engines however are a different story. That depends case by case.
In the Turbo F1 era engines could be made either to last only a few qualification laps or a full GP (300 Km) before getting overhauled.
Top Fuel drag race engines can last at most for 1 or 2 Km!
However I guess that in some other racing categories engines can last longer.
For example in the 24h du Mans they must be able to last about 6000 Km without breaking down.

I think that engine and drivetrain wear in GT5 are not properly simulated.
PD should have used a more advanced formula based at least on hours of activity, engine age, type, specific torque, specific power and maximum RPM, and also have made power loss over time more dramatic and account for bad driving/lack of engine care.
On the other hand, if they do so, they should reduce overhaul prices a bit, although it's also true that in real life a new engine can easily cost 1/4-1/5 of the car's original purchase price.
 
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I got trolled in another thread about something like this coming up. They called me stupid when I didn't want an X2010 with miles on it. I had got an X2010 with over 3k miles on it and after awhile finally dug one up with 0 miles on it. It was a huge difference compared in turning radius and handling through corners. I don't know why its hard for people to understand that miles in the game does affect your cars wear. Most the races in rl, after its over the cars has to be serviced atleast. Such as new gaskets, new sparkplugs, new oil and so on. Topfuel drag racing I think its called, don't get to much into drag racing. The cars engine has to rebuilt nearly after every run. ;)
 
MadBullBunny
I got trolled in another thread about something like this coming up. They called me stupid when I didn't want an X2010 with miles on it. I had got an X2010 with over 3k miles on it and after awhile finally dug one up with 0 miles on it. It was a huge difference compared in turning radius and handling through corners. I don't know why its hard for people to understand that miles in the game does affect your cars wear. Most the races in rl, after its over the cars has to be serviced atleast. Such as new gaskets, new sparkplugs, new oil and so on. Topfuel drag racing I think its called, don't get to much into drag racing. The cars engine has to rebuilt nearly after every run. ;)
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They only called you stupid because they don't understand that everyone doesn't know eveything about everything.

It's the internet, everyone is an expert or a fanboy or a hater, either way you know you are going to get flamed by someone who really has no joy in their life :)
 
It was quite pathetic how they couldn't handle someone trying to teach them something new.
 
I been flamed on these forums for saying chassis maint was a very important and necessary thing. But other "experts" insisted i was stupid, lying and that it was a total and complete waste to rebuild the chassis of a car.

Either way then the punt their cars into a wall suddenly one day after xxxx amount of miles, i am sure i will get pms of sorry dude you were right and etc. Not that i am holding my breath....

I would bet that many road cars have lost bhp over the years, but you would have zero way of knowing in any case. It is not like your doing standing stop full throttle 0-60 run with a stopwatch to check your times, nor do i think your taking your family sedan around a track with pro timing to see how your car is day one and how it is after 50k 100k miles. Only way to know for sure is take that car soon as you get it to a dyno shop and get it tested then keep taking it back to compare.

Any family sedan will run great 100, 200k miles barring any major mechanical failure, but it would be almost impossible to tell how much it's BHP is down from when you bought it, but i can almost guarantee that it has dropped if you got any decent amount of miles on any given car.
 
it depends really on a few things.

what type of engine? whats done to it? what sort of power its running? etc

a normal car engine can last over 200k miles if looked after. ive seen some old rolls royce engines have covered close to the mill mark without a rebuild.

as for race engine youve got to realise a few things. in real life racing you do anything that keeps the performance of the car at its peak to win. in the old f1 days engine were rebuilt after so many miles (i think like 2000miles) or something. this would usually be a race weekend including the practice and test sessions.

also race engines are built to such fine tolerances that due to the heat and use the tolerances become greater so power is lost. this wouldnt help you win a race if your loosing 100hp on an old engine.

nowadays f1 engines are used to about 2-3 race weekends. they get 8 engines for the year of 20 races. so thanks to the new rules the costs in f1 have fallen and smaller teams can be more competitive.


in tuned road cars it depends on loads of factors. if your seeking additional power you may need to rebuild the engine to get back lost compression due to wear. this is also a good time to improve the internal parts for stronger/light weight parts.

in a turbo car stronger components are needed when upping the boost to increase power beyond a certain boost level. the additional turbo pressure can blow gaskets, piston rings and loads of other parts.


engines may need to be rebuilt due to lots of other reasons: neglect of maintanence, detonation, over boosting, poor build parts, over reving etc etc.

as for the gt5 option its just a game so the engine wont fail on you. it just looses power over time. you generally wont need to rebuild most engines to be competitive but it helps to get back lost hp which could be the difference in some races.
 
A good new option for Gt5 would be that the more you push an engine with HP add ons the quicker it burns out. So if you run an engine stock it will not need a rebuild nearly as quickly as a maxed out supercharged one. It would give an advantage to not maxing cars out.
 
You guys are reading into what PD has done a bit too deep, just because you can do an engine overhaul doesn't mean you have to do it. You OVERHAUL the engine when you get hp degradation, an engine can require rebuilding at any time in real life, some cars fresh off the show room floor before the engine break in period is passed, may need an overhaul because of improper use. It's a mechanical part, with thousands of moving mechanical parts the only thing keeping it from seizing up is the motor oil that creates a thin layer in which to reduce friction.

Street cars do not wear their engines anywhere near the rate of a car used for racing only. It's only an option until you suffer from power loss, the power loss comes around the 2000 mile mark which isn't bad considering you constantly are running the engine at high engine speeds constantly. You don't run a street car that way ever, if you do, then you would be changing your oil a lot sooner than the 3000 mile mark. Anyway there isn't any real need to be alarmed because you have the option to do something, doesn't mean it's necessary you know.
 
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Yes we indeed know about all of that. 2k miles on a race car is much and is able to ruin the handling of the car. Might not ruin the engine, but I sure know it will ruin the handling if you crash into a wall a million times which people do all the time.
 

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