Experiences of hard run in's
Turbo Mini Forums

Just after some thoughts and opinions from those of you that have used this method to bed in rings etc. Im quick intereged by this after chatting to steve (Benross) but am very aprehencive about it.
Cheers
Shane

it does work. at least it certainly did for my n/a engine

Steve is confident it will be fine as long as the engine doesnt run in to det', am just looking for others feed back.
Shane

i did a "halfway" version of whAT STEVE SUGESTS (oops), basially diving normally, and makinkg sure the engine gest a fair amount of short full throttle squirts forlowed by coasting, my ring seal seems good.

drive it like you stole it when you leave a set of traffic lights, but DO NOT take the rpm above 3/4 red line, and do not labour the engine, IE fourth gear 2000rpm and then floor it.

Edited by Sprocket on 12th Jun, 2009.

I'm thinking of running in my engine like this.

As I have a decent base map and have the boost set really low I cant imagine anything drastically going wrong unless the fuelling is wayyy off?

I usually run mine in on the saturday at Avon Park on the drag strip>

Paul

I seriously doubt it!

one of the best looking pistons squirt and ringland, with shiny rings, had been run it , like this:
basic mineral oil up to track 200 km,motorbike oil change just before start racing, then go on all the week end, with the only the saturday limited to 3/4 full rev!

Mine just got caned on the rollers for its first outing. Obviously knocked the cam in first.

Actuator issues meant that it was all doen at 18psi +!!!

My freshly built 998 went straight into service testing the injection. Limited the revs to 5k for the first 100 miles or so, then up to 6k. Effectively gathering data from hard runs through the gears and no cruising. A lot of the time running on the rich side, particularly the inner cylinders.

Used Halfords "Classic" oil to run it in but did not get round to changing it until 500 miles or so :$

It did start breathing a bit more than I would like on the old oil, but I've now put some Millers in it it seems to have settled down.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Thats the sort of positive feed back I was hoping for, if I set the rev limiter on the mj at 4k will this cause any issues if i hit it? I know it may sound a stupid question.
Cheers
Shane

go on, what's it look like after:

Right then, Fingers crossed for this one, have put 20/50 mineral oil in, set the limiter on the mj to 3.5k gonna give it a good old ragging when I get the chance this week, woop!
Shane

I run mine in hard, bed cam bearings in for 20 mins, then go mad

Team Racing

3.5k is a little low, no? I would have said 4.5k if it revs to 6.5k

I did wonder, I was just basing it on one of your previous posts, but after reading it over could be interperated differently. Its not a problem the ecu is sat next to me so will up it now.
Cheers
Shane

Lets face it...many race cars have their engine built, then ran flat out the next day.

Often its just due to time constraints. As long as the engine was built properly, and is running safely, cant see there being a major problem.

Ive had Subaru engines running over 30psi boost within 30 miles of being built, with no ill effects.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Fair enough, but are you cursed with the bad luck that I seem to be lol
Shane

Opening up an old post (sorry guys).

I've recently just started to run my engine in and from the moment it left my drive way I have nailed it. 15psi all the way. It's feckin awesome when it comes on boost. One problem is.....exhaust smoke!
When it's being driven normally/on boost I get nothing it's only on idle when I've stopped with the engine ticking over. My breathers are vented to air and occasionally I get the odd puff of smoke from them.
Bearing in mind that I haven't been a pussy with it i've taken it to 5-6k on pull aways and it is rapid though all gears.
I think my turbo's goosed. Any ideas/advice???

check the turbo for play,

if there isnt any pull the turbo and look for where oil is and almost more importantly... isn't.

oil in the output of the compressor says turbo,

oil in the exhaut manifold but not in the turbo compressor outlet says engine etc

Right then I've just took off the plenum inlet pipe to inspect for oil and it's as clean as a whistle. I'm now thinking that it's my rings. I've only covered around 25-30miles so far. I think a trip to avon and back tomorrow will tell me whats going on with it. I really think it just needs some miles on it to let everything settle down and bed in.

really breaking the cam in is not letting it idle or taking it too high rpm wise,

I now take my engines for a run and give them "squirts" throttle it to push the rings into the bore and knok the high spots off, let off so oil gets up around the rings before the get hotspots, keep at medium revs, 2500 to 4500.

thats my threory anyway