How much abuse can high performance cars take?
How much abuse can high performance cars take?
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Discussion

inline6bmwfan

Original Poster:

93 posts

52 months

Tuesday 25th April 2023
quotequote all
Ive put a lot of abuse into my current car, about 15,000 miles since ive bought it its really been driven hard. Its also been remapped lol.

I always let it warm up its oil first and let it cool down a bit after, but im constantly thinking its time is nearly up every time i drive it hard, but i cant help driving it hard because its insane/a lot of joy. Also gets serviced more than it needs too.

For context its a B58/ZF8 combo m140i at roughly 430bhp. Currently only has 35,000 miles on it.

GT03ROB

14,026 posts

251 months

Tuesday 25th April 2023
quotequote all
You really are not going to be driving a 430hp car hard on public roads regularly (unless you are seriously misbehaving).

If you are tracking it that's different of course.

MikeM6

6,064 posts

132 months

Tuesday 25th April 2023
quotequote all
Define abuse? It does not sound like the car is being abused, rather it is being driven hard. With proper care and maintenance, which it sounds like you are doing, then it should be absolutely fine for a very long time, generally speaking.

The gearbox will be taking much of the risk out of it, as you won't be sidestepping clutches or miss shifting. You can't really over rev these, so unless the oil is cold (or absent), you are driving mostly within its specified operational parameters.

Except for the remap, that is the bit that might cause longer term issues, but that all depends on who did the map and how well it is written.

996Keef

435 posts

121 months

Tuesday 25th April 2023
quotequote all
GT03ROB said:
You really are not going to be driving a 430hp car hard on public roads regularly (unless you are seriously misbehaving).

If you are tracking it that's different of course.
I dunno, seems every mapped fartbox m140i goes for vmax round here at 6am down the a449

GroundEffect

13,864 posts

186 months

Tuesday 25th April 2023
quotequote all
On the road, in the UK, you aren't going to be driving too hard. However you're probably in the 99th percentile for it and you're driving more torque through the system. So 100th percentile. There's a good chance the car won't make full life (150k miles/10 years).

swisstoni

24,082 posts

309 months

Tuesday 25th April 2023
quotequote all
The Op wonders how much ‘abuse’ his car can take yet is not going to alter his driving behaviour in any case, so can’t be too bothered.

So, we’ll find out eventually won’t we?

inline6bmwfan

Original Poster:

93 posts

52 months

Tuesday 25th April 2023
quotequote all
By driving hard on public roads i mean things like:

Full bore accelaration on a slip road.

Accelerating full throttle in blips between 20mph to 40mpg, 30mph to 60mph etc.

Not breaking speed limits but enough power through the rear wheels that they break traction in the dry.

It just feels like a lot of power to be putting through the car consistently etc.

DickyC

58,701 posts

228 months

Tuesday 25th April 2023
quotequote all
inline6bmwfan said:
By driving hard on public roads i mean things like:

Full bore accelaration on a slip road.

Accelerating full throttle in blips between 20mph to 40mpg, 30mph to 60mph etc.

Not breaking speed limits but enough power through the rear wheels that they break traction in the dry.

It just feels like a lot of power to be putting through the car consistently etc.
I saw a bloke do this joining the M4 a few days ago in an RS4. LIike the Millenium Falcon down the slip road then Driving Miss Daisy on the motorway. It seemed a really odd way to progress.

illmonkey

19,825 posts

228 months

Tuesday 25th April 2023
quotequote all
inline6bmwfan said:
By driving hard on public roads i mean things like:

Full bore accelaration on a slip road.

Accelerating full throttle in blips between 20mph to 40mpg, 30mph to 60mph etc.

Not breaking speed limits but enough power through the rear wheels that they break traction in the dry.

It just feels like a lot of power to be putting through the car consistently etc.
This is commuting, non? hehe

What you describe is not driving hard. As long as it's warm when you do 'pulls' it'll be fine.

DickyC

58,701 posts

228 months

Tuesday 25th April 2023
quotequote all
illmonkey said:
This is commuting, non? hehe

What you describe is not driving hard. As long as it's warm when you do 'pulls' it'll be fine.
Hang back to create a gap, then beans?

Creative Commuting For Boys.

hehe

nickfrog

25,397 posts

247 months

Tuesday 25th April 2023
quotequote all
inline6bmwfan said:
By driving hard on public roads i mean things like:

Full bore accelaration on a slip road.

Accelerating full throttle in blips between 20mph to 40mpg, 30mph to 60mph etc.

Not breaking speed limits but enough power through the rear wheels that they break traction in the dry.

It just feels like a lot of power to be putting through the car consistently etc.
It all sounds very mild. Go on a track day and see how cars are used properly wink

0ddball

916 posts

169 months

Tuesday 25th April 2023
quotequote all
Don't worry, it's standard practice for these sort of cars. Mod them, thrash the st out of them, then clock them before the 1st MOT. Then later they appear on a dealer forecourt as a 1 owner totally standard approved used lemon.

illmonkey

19,825 posts

228 months

Tuesday 25th April 2023
quotequote all
DickyC said:
Hang back to create a gap, then beans?

Creative Commuting For Boys.

hehe
Absolutely!

nickfrog said:
It all sounds very mild. Go on a track day and see how cars are used properly wink
Then get overtaken round a bend by a nutter in a rover 200. It'll be an eye opener for sure!

brillomaster

1,882 posts

200 months

Tuesday 25th April 2023
quotequote all
you'll likely get through tyres quickly, but other than that, you'll likely be fine. the gearbox can take the torque, and the engine will be safe at that torque levels too. problems will really come when you're boosting waaay above standard, in which case you'll be seriously working the components of the engine and gearbox, and are at risk of breaking things. thats where forged pistons etc come in.

the other main killer of engines is heat - bouncing off the limiter while the car is standing still will quickly overheat an engine as theres no airflow to cool anything down, but if you're moving when you're doing pulls you'll be fine.

as others have said, do a trackday or two. that'll work the tyres hard, engine will be at max power for sustained periods of time, suspension will be getting bashed over kerbs, brakes will be getting really hot, and so on. though, with management and maintenance, even this isnt particularly a problem. modern cars are designed to take a fair bit of abuse. Everyone loves a good pull through 2nd and 3rd gear now and then, whats the point of having a relatively powerful car and not using it!

And as always, please hoon responsibly!

Glenn63

3,951 posts

114 months

Tuesday 25th April 2023
quotequote all
Iv also an M140 running 500bhp, my daily used everyday, full power whenever there’s an opportunity, and I did 6 track days last year and I use it as hard as I can on track. Zero issues so far.
Also it’s only bits of metal, if it brakes il fix it.

STe_rsv4

1,270 posts

128 months

Tuesday 25th April 2023
quotequote all
Glenn63 said:
Iv also an M140 running 500bhp, my daily used everyday, full power whenever there’s an opportunity, and I did 6 track days last year and I use it as hard as I can on track. Zero issues so far.
Also it’s only bits of metal, if it brakes il fix it.
With 500bhp on tap you want to hope it brakes. wink

Alex_225

7,832 posts

231 months

Tuesday 25th April 2023
quotequote all
Abuse and driving hard, in my opinion aren't the same thing really. Abusing a car is not servicing it, driving it hard from cold and essentially mistreating it.

Where as driving it hard, servicing it properly, letting the engine warm up and cool down I consider are just using the power the car has. That's all within the confines of road driving at least.

Also, having a high powered car is one thing. I have a 500bhp car and don't find there's much opportunity to stretch it's legs. You can use bursts of acceleration but it's not troubled by 70mph on a motorway and even if you creep over that, it's not really pushing it.

I've always been more inclined to drive a lower powered car a bit harder, get the power out of it or use full power as you're not doing silly speeds. I drive my Saab 9-3 fairly hard at times, it's a mapped twin turbo diesel and I use the power and torque it has to it's fullest, it's got 130k and has no issues. Suspect the previous owner used it well too but looked after it.

I suspect there's more slow cars that are genuinely abused and not cared for, they still last.

legless

2,051 posts

170 months

Tuesday 25th April 2023
quotequote all
If you ever saw the sheer abuse that cars get put through on manufacturer testing programmes, you wouldn't worry about anything you could subject it to on the road.

Stuff like the engine being cold-started at -20°C and then bounced off the rev limiter under load straight away etc.

thatdude

2,660 posts

157 months

Tuesday 25th April 2023
quotequote all
It'll be fine, yoy keep on top of the oil changes which is the important bit for th engine. Consider a transmission service from 60,000 miles or so (ZF do state transmission service intervals, even though BMW does not). You should also consider replacing the diff oil at the same time.

Else, on the road, you might think you're pushing hard and rpessing on, but in reality those moments are few and far between - the pace of other traffic will mean your car is more often than not at light throttle loadgins and the revs are low. If you were regularly track-daying your car, then you might be on for other issues from really operating at the upper end of the cars performance ability, but road use is fine.

Keep an eye on chassis components too and consider them serviceable items.

Baldchap

9,629 posts

122 months

Tuesday 25th April 2023
quotequote all
VAG engines are run for 24 hours at max revs during testing. If there are any problems as a result the engine fails and is redesigned.

I'm sure other manufacturers do the same.

Think about it. How many cars* do you know that have had actual engine failure? Rust, damage, engine ancillaries, suspension all write cars off come MOT time, but I've never heard of one that does purely down to the engine breaking.

  • Assuming servicing.