Does An Oil Catch Tank == More Timing?

[HYPED6]

But one was a significant cause of the other. Minimise the oil intake and reduce the carbon.

[GTSBoy]

Oh absolutely, but it isn't the mist itself that causes 10 degrees of timing change. And as I said, you can sidestep the secondary problem without fixing the primary problem. It's still better to fix the primary problem. I'm still arguing from the point of view of the effect of just the oil vapour itself, per the initial post. And that's just arguing for the sake of it.

By the way, did that V8 get a decent oil control system as part of that clean up?

[cherring]

On e85 mines fills up with water Lololol took out 400ml after 1000kms

Haha yeah same same

Should I install one now that I am running E85?

[SiR_RB]

Sounds like a good idea

I got one and going e85 in afew weeks, might put a little tap and hose on the bottom of the catch can so I can drain it easily into an empty coke bottle

[R31Nismoid]

What if......... Say I said........

I have seen a turbo V8 that after cleaning the inter cooler piping from all oil residue (due to poor crank case ventilation) and cleaning carbon deposits of the tops of pistons we where able to dial in 10 degrees more timing...............

I would say that's a different scenario to what we are talking about here

[HYPED6]

Im lost.

It is Friday, but I dont understand how it is different.

No.... a catch can will not let you run more timing unless you are over working the factory PCV system

Will a catch can let you run more timing over time if left on a engine to stop contaminants getting into your intake.... you better believe it.

[R31Nismoid]

It is Friday, but I dont understand how it is different.

It's not just a oil in the piping issue, as you said in your own post. So unless you...

1. Cleaned the piping - see how far you could go with timing

then

2. Cleaned the pistons - see how far you could then go

You can't really say it was just the oil in the intake alone causing the issue in your example.

Will a catch can let you run more timing over time if left on a engine to stop contaminants getting into your intake.... you better believe it.

I don't think anyone in this thread has said that is not the case

It's more around the point of "how much more timing" is the argument at hand. If the motor isn't breathing too heavily at all, there is little oil in the intake as a result - then the extra timing you could potentially then run is probably not as high as 10 degrees at all like your example - which is what i think most are sorta getting at...I'd be fairly certain you understand that

[HYPED6]

But the oil then turns into carbon and blows your engine up?

[HYPED6]

O and thanks for explaining, its much more clearer now.

[DVS JEZ]

Now now.

Hyped howd u clean the pistons in this scenario?

Must have been alot of carbon build up... Be curious to know if the compression had changed in ur scenario from excess carbon

[GTSBoy]

Doesn't really need to up the compression. The carbon gets hot and serves as an ignition source.

[DVS JEZ]

Doesn't really need to up the compression. The carbon gets hot and serves as an ignition source.

Thats what im curious about, whether it was hot spots or not

[HYPED6]

HHMM, I was going to type its the hot spots...... but I that they would contribute but are they the whole story.

I think the next head gasket i see getting done, I might clean one of the pistons and save the carbon. Then we can work out a rough area and devide that into the cylinder CC at TDC..... and see how much it raises the comp.

Top idea DVS. I have never thought of that

[DVS JEZ]

Keep us updated if u get a chance to try it

[t_revz]

I think the next head gasket i see getting done, I might clean one of the pistons and save the carbon. Then we can work out a rough area and devide that into the cylinder CC at TDC..... and see how much it raises the comp.

Mine was pretty bad but I doubt it changed the CR much