longevity of a supercharged engine.help needed
Turbo Mini Forums

Well I have built a supercharged engine for my car.its completely unrun atm.but I was chatting to someone and they said the expected longevity for a supercharged engine would only last 15k miles

I was really hoping it would last a considerable amount of time more than this.

It is a med engine
1293
18cc forged omegas
Fully worked rods
Fully worked cooper s crank
4 cap centre main strap
Full straight cut Box
Quaiffe lsd
Sc crown wheel and pinion
Fully worked med head
1.5 rockers
278 cam 112 lobes

Emerald ecu and all injected with distributor less ignition.

What would you expect a well built engine with good servicing to last for ?? Over stressed ?? As you can imagine has me worried after a lot of money for potentially not a long time.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

If it is a MED engine with the spec you list it is as good as it gets.

The life of an engine is so dependent on how it is used that to say it will only last 15000 miles is nonsense.

If you rag it from cold every time you drive it and rev the nuts off it everywhere then it won,t last even 15000 miles.

Driven with some respect,and set up properly on a rolling road, even allowing for moments of complete madness there is no reason why it should not last as long as any other engine.

You don,t mention how much boost you will be using, which will be another factor, of course. Over boosting and risking detonation could grenade the engine in a few minutes.

You don't mention which supercharger you're using, but suck-through with an Eaton will seriously reduce the life of the charger and possibly the engine.
The coating has to go somewhere...

Metric is for people who can't do fractions.

Big difference between having to freshen up an engine with new bearings, rings and oil pump and binning the lot. I'd exect a freshen up after 20k not starting with a clean sheet of paper.

It's an injected Eaton charger injected at the Base of the charger sort of mid suck I guess.will be running a 12% reduced pulley.so I guess about 10-12 psi.

It will be my weekend and to and from show car.
So driven nice most of the time but with a bit of spirited driving.

It will be serviced regularly.warmed up and cooled down correctly.

I think I might be a bit dissapointed if it only lasted 15k miles.

Edited by ashley_dude00 on 20th Feb, 2015.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance

I'm in the middle of pulling my supercharhed engine out. 30 miles on it so far

I ran my originsl sc12 on an engine built in 1969, that had 60k on the clock from 2007 until last year only used for shows and it was still going strong. But I never had any rotor coating come off. It's only used for fun, shows and some track days.
I think a lot depends how you drive it, drive it like you stole it and most classic engines won't last long.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

No reason why it would only last 15k if used as a normal daily. by that I mean not screwing the shit out of it at every opportunity and lots of steady driving.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

if i was going this route i bought a last model one from a big bmw garage. theyy insured me the coating (black) on the latest models (4 or 5or... cant remember) is 100 % fuel proof.

you can do anything if you set your mind to it...
i rather blow it up winning than keep it together losing.

finish date set for project 1... march 2018

I have that model with the hard'nd coating on it so hopefully.that won't be an issue.wontnbe used as a daily just a nice mini to go to shows in with a good load of power for a bit of fun and a bit of twists driving now and again.

In my head I had done everything I possibly could to make it as reliable and last as long as I could.was just very shocked by that statement.

On 30th Aug, 2008 Richie said:
too much my wife says "not that friggin site again" so i pull my pants back up and turn it over to TM. iam on pretty much every day as i lead a sad existance