What's causes more wear on an engine?

Jonny69 · 24 Jan 2006 at 11:25

Neither will kill it on a modern engine with a rev limiter. Just don't do it on a cold engine as the oil won't get around it properly and make sure the oil is changed at the relevant intervals.

Jez · 24 Jan 2006 at 12:10

L0rdMike said:
Boost will only kick in if you have ya foot down.

This is what ive never understood when people say about their engines being on boost at cruising speed so they get really bad economy. Every turbo ive ever driven has been the same as the MR2's, ie, they will only boost with your foot down, you can still cruise at 6000rpm with no boost at all getting 25-30mpg.

L0rdMike · 24 Jan 2006 at 12:12

I just hate it when you change down a gear and fly into the distance with the boost.

Jez · 24 Jan 2006 at 12:14

I just wish i had that luxury tbh

thedazman67 · 24 Jan 2006 at 15:33

i rarely venture over 2K rpm on town runs the car will sit happily at 1.5K at 30mph in 5th at 70 mph on the motoway the rpm reads just under 3K, i could probably count in one hand how many times i've bin past 4K rpm

thedazman

NiCkNaMe · 24 Jan 2006 at 15:41

thedazman67 said:
i rarely venture over 2K rpm on town runs the car will sit happily at 1.5K at 30mph in 5th at 70 mph on the motoway the rpm reads just under 3K, i could probably count in one hand how many times i've bin past 4K rpm

thedazman

yawn yawn yawn lol

Muncher · 24 Jan 2006 at 15:41

High rpms in first and second I would imagine cause more damage due to the acceleration putting stress on the drivetrain.

I never go above 3,00rpm until the temperature reads 91 degrees.

lordedmond · 24 Jan 2006 at 15:44

Muncher said:
High rpms in first and second I would imagine cause more damage due to the acceleration putting stress on the drivetrain.

I never go above 3,00rpm until the temperature reads 91 degrees.

why 91 degrees ?

Jez · 24 Jan 2006 at 15:52

I would imagine that this is the ideal operating temperature of his engine

D4VE · 24 Jan 2006 at 15:52

Jez said:
This is what ive never understood when people say about their engines being on boost at cruising speed so they get really bad economy. Every turbo ive ever driven has been the same as the MR2's, ie, they will only boost with your foot down, you can still cruise at 6000rpm with no boost at all getting 25-30mpg.

Yup the only way they could be "on boost" with their foot off the accelerator is if the butterfly on the throttlebody was stuck open. And in that event, they'd have bigger worries than economy

Muncher · 24 Jan 2006 at 16:05

lordedmond said:
why 91 degrees ?

It's the minimum temperature the engine will sit at when in use really so it's a fairly good indication that it's at operating temperature, takes about 8 minutes and a few miles to get that warm.

lordedmond · 24 Jan 2006 at 16:37

Muncher said:
It's the minimum temperature the engine will sit at when in use really so it's a fairly good indication that it's at operating temperature, takes about 8 minutes and a few miles to get that warm.

thanks it just seemed a odd number

my oil burner takes about 8 miles to get warm horizontal needle LOL

just waiting to get it back after the muppets fitted the wrong ecu
they fitted part ending in 81A instead of 87A

goes into limp home mode at 2.5k on full thottle

Lowe · 24 Jan 2006 at 16:53

Just out of curiosity, are the temps people quoting oil, or water temps? Because water temps aren't always indicative of how 'warmed up' the engine is...

I'm lucky in that I have oil temp and pressure so I can see exactly when the Clio's ready for a spirited drive

Muncher · 24 Jan 2006 at 16:59

That's water temperature, I cannot tell oil temperature so it's the best I can go on. By that time the engine is very hot to touch so I assume the oil is reasonably hot too.

sunky · 22 Feb 2006 at 19:59

i think u need to fre change oil

Lopéz · 22 Feb 2006 at 20:03

sunky said:
i think u need to fre change oil

Need to what? :confused:

L0rdMike · 22 Feb 2006 at 20:04

Lopéz said:
Need to what?

Need to spam I think? :confused:

merlin · 22 Feb 2006 at 20:05

frequently?

Lopéz · 22 Feb 2006 at 20:11

Possibly.
But who's the post directed at? And what's wrong with the last 2 syllables of the word "frequently"?

As for oil, the warmer and fresher the better - and I do mean warm, not "so hot it's breaking down and no longer functions as a lubricant". Revs are generally what kills an engine, be they sustained or in bursts.

PMKeates · 22 Feb 2006 at 20:16

Jez said:
This is what ive never understood when people say about their engines being on boost at cruising speed so they get really bad economy. Every turbo ive ever driven has been the same as the MR2's, ie, they will only boost with your foot down, you can still cruise at 6000rpm with no boost at all getting 25-30mpg.

Surely you'll only be on boost cruising if you need the turbo to generate the horsepower necessary to maintain that speed.

I.e. Car A is 100HP and does 100MPH. Car B is Car A with a turbo, and 150HP and does 150MPH. If you go 110MPH in Car B, you'll be on some boost, as the engine can't maintain that power and thus speed without the turbocharger.

What's causes more wear on an engine?

Man of Honour