Rbon91

iTrader: (6)

Rite so my engine build is finally getting there turbo is being made and should be ready in a week or so

I have a brand new fully forged 2.0 with spec c heads..

just wondering whats the best way to run in engine.. I know abviously I will need a running in map. But what I need is...

best oil to use?
How often to change the oil?

And anything else I need to do/ know whilst running car in

thanks ryan

Blue by You

iTrader: (23)

My Zen built engine was run in on Halfords mineral oil, and driven moderately quickly without ragging it or allowing the engine to labour. 500 to 600 miles like that, oil and filter change and then gradually start to use more power and rpm.

Rbon91

iTrader: (6)

When you say labour.. do you mean sat in traffic? Did you have a rev limiter put on map?

Thanks ryan

fpan

iTrader: (11)

Avoid high load (high gear) on low rpm etc.

Blue by You

iTrader: (23)

Labouring is allowing the engine to run at low rpm in high gear and trying to accellerate. You need to use the engine throughout a reasonable and safe rev range, but not rag the **** off it.
You don't have to treat it like it's made of glass, just be sensible for the first few hundred miles.
I had a 5k rpm limit on the run in map and boost limited to 0.8 bar.

Rbon91

iTrader: (6)

Ahhh ok cheers got after map got a 1hour motorway drive home... so im best to take A roads where possible or juat go up and down gears on motorway?

Ryan

Fudgey

iTrader: (1)

There are so many different opinions of running in an engine, but you NEED to load the piston rings to get them to bed in. This means cylinder pressure, ie driving it briskly.

If you fanny about for thousands of miles they will glaze the bores and it will drink oil and be down on power.

Generally if the engine holds together for a few miles it should be ok!

Get it up to temp, then do a few blasts, accelerate up hills etc. just drive normally.

But as said do not be at low revs and high load.

Use mineral oil for the start, change oil after around 50 miles again at 150 then fill with your usual tipple and enjoy.

All IMO of course!

Rbon91

iTrader: (6)

Ok well willtalke the A roads home ... alot of up hill driving so can go all the way through the gears..

how many miles does it take to run in a engine that I want to last?

Thanks again ryan

Fudgey

iTrader: (1)

Do not have a fresh engine then sit on the motorway at a constant speed. The rings wont bed.

Within 50 miles they should be bed in enough if its loaded properly.

Im not saying drive flat out, but accelerate, then lift off and repeat. Do this in different gears etc

Rbon91

iTrader: (6)

Yeah thanks fudge... will be driving from . Stafford to manchester home.. once I have finished building car its going over to Cheveron in stafford for full check over amd there doing a couple things for me on car..

thanks ryan

Fudgey

iTrader: (1)

Thats quite a varying question. It all depends on who built it and how etc. what tolerances etc etc

Also how its run in lol

Fyi on the last engine i built i ran it for maybe 50 miles, changed the oil and had it mapped.

It made 397bhp 386lbft but had fuel surge issues. Should have made 450+ and similar torque but the car was wrote off before i got chance to take it back to get finished.

That was a zetec turbo tho, not an ej20

Rbon91

iTrader: (6)

This is build thread mate of my car spec so far amd full engine spec is on there... doing 99% of work myself with another memeber on here (rosssti)

Ryan

Rbon91

iTrader: (6)

https://www.scoobynet.com/showthread...3#post11320493

Fudgey

iTrader: (1)

I guess it all depends on how you feel lol.. Like i said, how i tried to explain is what i would do. But doesnt mean anyone else would agree!

Tuners usually say 1500 miles to cover their **** but that is way too many miles to bed the rings in. The hone on the bores will not last long.
Just think, at 6000rpm your piston is going up and down 100 times a SECOND!

But if you fit it, drive flat out for 50 miles and it fails your obviously not going to be happy. So its all down to you at the end of the day. Maybe google engine run in/ engine break in and have a read.

domino46

I put halfords minimal oil in for the first 500 miles then changed to normal oil done another 1000 miles and then mapped the ****e out of it lol ,,, iv ran in more engines than I'd like to say and quite a few of them never made it to the first major map due to all sorts of reasons ,,, the only one that lasted was the one I treated like a normal car from the start and didn't sit there worrying about it till it was fully warm I just drove it normaly ,,, no I didn't go mental with boost but I didn't stay right off it either and if I needed to overtake or put my foot down slightly I did ,, all still good 20k later

Rbon91

iTrader: (6)

Ok thanks for all the help think I hqve a idea what I need to do now

ryan

wms-racing

My new engine in the rally car will be started today, once im happy its running ok its off to the dyno, that will soon bed the rings in :-) As has been said though, mineral oil first for a few miles, switch to semi and allow it to work a bit for a few hundred then onto some good stuff and map it.

scoobyman83

http://wiki.nasioc.com/wiki/Break-in_engine

Blue by You

iTrader: (23)

Always makes me nervous when someone says they're going to 'break' in their new engine

Fudgey

iTrader: (1)

Just like breaking in a new pair of shoes lol

Rbon91

iTrader: (6)

Thanks for all the advise.. going to run mineral for forat 100 or so miles.. goind to do 20min blast after running in map and then flush and oil change. Dont want to be taking out or changing this oil forna long long time lol

ryan