mx5cartalk.com

Do you have to \"run in\" new turbo's ???

Thanks

Don't think so I have always put them in and run them at what ever boost I set. Never had a problem. Just do an oil change when you fit it and chage the il every 5 000Kms and all should be good.

According to the Garrett website......no

I have read yes. The most important thing was that you don't run synthetic oil, and that you turn the engine over WITHOUT spark for 15 seconds to pump fuel into the turbo.

Then it said, no higher than 4000RPM for 300-500miles. This was for the TDO4 mitsubishi turbo on an MX5. I just googled it and couldn't find the page again, but that is what i remember it saying.

Boags

yeah I never ran mine in and all seems to be fine.....it was a garret

Boags'MX5 wrote:The most important thing was that you don't run synthetic oil, and that you turn the engine over WITHOUT spark for 15 seconds to pump fuel into the turbo.

JBT wrote:

Boags'MX5 wrote:The most important thing was that you don't run synthetic oil, and that you turn the engine over WITHOUT spark for 15 seconds to pump fuel into the turbo.

that's how u get the after burner effect

Philip Lee wrote:

JBT wrote:

Boags'MX5 wrote:The most important thing was that you don't run synthetic oil, and that you turn the engine over WITHOUT spark for 15 seconds to pump fuel into the turbo.

that's how u get the after burner effect

You just need StanThe Man in your car if you want an after burner!

I wouldn't bother, and I think who ever wrote that boags is full of sh!t.

You should certainly let a turbo warm up when you start the car just like a motor (IE don't go flat strap straight away) but I don't reckon when the bearings are spining that fast without much load that a \"Run In\" procedure is going to do much if anything.

Can't use synthetic Oil ?????????

Is this correct, as these oils are all the rage ??

Thanks

doubt it since everybody else recommends running fully synthetic rather not just semi synthetic and since the big one to worry about in the bearings would be coking from overheating I would reckon the less crap in the oil the better... as such full syn should be better. But I don't know the exactly so I wouldn't take what I say as gospel, but I'd think twice before believe anything like don't use fully synthetic.

Boags may have been confusing turbo run-in with turbo engine run-in.

I have heard from various (what I consider informed) sources that the initial run-in for a new engine, turbo or otherwise, should be on non-synthetic oil to allow the rings to bed in and prevent cylinder wall glazing.

Except at the HSV bumper factory one of the first things they do (a few years ago, not sure about current practice) when they get the car from Holden is drain out the dino oil and refill with Mobil1. So the only run in the engine has done is driving on and off the truck. When asked about using fully Synth for running in the HSV tour guide said something along the lines of Mobil1 being the finest oil in the world, why use an inferior product.

I can't see why you'd need to 'run in' a turbo. There are no rings to bed in, andt he bearings are immersed in oil. The bearings are not under loads like say, crankshaft bearings are, either.

JBT wrote:I have heard from various (what I consider informed) sources that the initial run-in for a new engine, turbo or otherwise, should be on non-synthetic oil to allow the rings to bed in and prevent cylinder wall glazing.

Yeah I have heard similar