Track Question

[Ryosuke Takahashi]

Hi just have a noob question, see the guys with race only (circuit dedicated cars)

When they rebuild their engine how do they do the engine run in process? just drive on the track?

[blackrex]

Run it in the way that you'll drive it. The first 1/3 of all the wear on an engine will happen in the first 1000 revolutions that the engine does. You need to load it up fully, and also leave the drivetrain engaged on over run to suck the swarf out of the bores.

[Ryosuke Takahashi]

Sorry but Im not sure what you mean?

So they just drive it on the track anyways?

Would they be driving it @ WOT?

[blackrex]

Sorry but Im not sure what you mean?

So they just drive it on the track anyways?

Would they be driving it @ WOT?

They make sure that the engine coolant and oils are warmed to operating temps, and then they will drive the car in the same manner that they will be driving it. The idea that an engine needs to be babied for the first few 1000 k's to break it in is wrong.

[Sydneykid]

We don’t use the “normal” race oil (Castrol Edge 10W60) to run the engine in. It is synthetic, which means it is almost impossible to run in the rings. So we run the engine in using the basic Castrol GTX, mineral oil.

Hence there is no way we could run the car in the same way as we race it. The oil simply wouldn’t handle the loads placed upon it.

cheers

[Ryosuke Takahashi]

Ohh okay I get you.

Thanks for clearing that up.

[phunky_monkey]

We don’t use the “normal” race oil (Castrol Edge 10W60) to run the engine in. It is synthetic, which means it is almost impossible to run in the rings. So we run the engine in using the basic Castrol GTX, mineral oil.

Hence there is no way we could run the car in the same way as we race it. The oil simply wouldn’t handle the loads placed upon it.

cheers

Can I ask which method you use??

I am going to be in a similar situation quite soon, and with so many theories floating about it's hard to tell which is the best way to go...

Thanks

Dane