How to determine notches regarding head gasket type

[libbydiesel]

Right....  

No need to be like that.

Thanks for the link.  I've read it.

Some folks have intentionally dropped the compression ratio, with good reason, in order to run higher boost and yet keep peak cylinder pressures in check but doing so by fitting a gasket that is thicker than spec is, IMO, the wrong approach because of the other factors I mentioned.  Similarly there are folks running 1.9 heads on 1.6 engines with decent results despite the compression ratio being dropped by many magnitudes more than the drop caused by the thickest gasket on an engine that calls for the thinnest.  Perhaps I could have avoided your crap attitude if I had said 'Even if dropped compression is not an issue or even desired there are two other factors to consider...'

[TylerDurden]

Quench is critical in gassers which have a premix condition causing microdetonation on the piston heads, but diesel combustion has no unburned fuel/air mix after the start of combustion - the fuel only burns as it reaches further into the air-charge (no detonation after ignition).

I've gone through a couple dozen whitepapers on diesel combustion and none mention quench. Probably because it's a crappy way to cool piston-heads, compared to the current in-piston oil circulation chambers or the squirters that preceded them. 

One would think if quench (piston to head proximity) was an issue, VW would have mentioned it in the SAE doc linked above.

And as noted, squish for turbulence does not seem to pertain much to IDIs.

[libbydiesel]

One would think if quench (piston to head proximity) was an issue, VW would have mentioned it in the SAE doc linked above.

I would not assume that.  There are things in that paper that are not stated, over-stated, over-simplified or even wrong.  The engineers working on the project had their own set of criteria and agenda in their choices on the project and VW as an organization similarly had their own agenda in releasing that paper and the two agendas do not necessarily coincide.  While it contains a fair amount of valuable information it is certainly not 'the Truth, the Whole Truth and nothing but the Truth."

[8v-of-fury!]

^^ Can you prove that?

[libbydiesel]

Yes, but what possible motivation would I have to go through the effort?  I'm certainly not interested in jumping through hoops to accommodate anyone whose goal is to jab at me.

[8v-of-fury!]

Only to validate yourself. No jabs from me?

Same reasons you ever expect proof from anyone else. Validation.

[libbydiesel]

I certainly don't feel the need to validate myself to anyone.  My comments speak for themselves.  Sometimes I will cite sources if it is easy or I'm inspired or feeling particularly accommodating/kind.  I also do not 'expect proof' from anyone else and never have.  I take the information others present and apply my own critical factor to it to see if it passes my own mustard.  I have on occasion asked folks if they had links to information simply to make my own self-education easy but I certainly don't expect that accommodation from anyone and if they decide to give it, it is appreciated.  

[8v-of-fury!]

Oh. Ok. It is making sense.

You only help out when it benefits you personally? Would you say this is true? I would.

I have never given anyone that attitude.. lol "I know what you want to know.. but I won't tell you just because."

A man above, you are.. some would say Godly. (I would lol)

[libbydiesel]

You really don't feel that you are making jabs?  Weird.  I'm not sure how else any rational person would interpret that. 

[8v-of-fury!]

That was my opinion of you. I was asking you if it were true.

No? Ok then it isn't.

[libbydiesel]

Oh. Ok. It is making sense.

You only help out when it benefits you personally? Would you say this is true? I would.

I have never given anyone that attitude.. lol "I know what you want to know.. but I won't tell you just because."

A man above, you are.. some would say Godly. (I would lol)

Underlined and highlighted you can see where you made a personal statement about me.  I feel that type of comment is inappropriate.  The following line is more vague and so a bit more appropriate.  At least you are making a personal comment about yourself and not about me as I also have not given anyone that attitude.  The last statement is also a personal comment.  It is a bit vague.  The easiest interpretation given the comment in parentheses is that you are being sarcastic and so, it must be interpreted as another derogatory personal comment.  

That was my opinion of you. I was asking you if it were true.

No? Ok then it isn't.

There is no point in time where your opinion of me is appropriate to post on this forum.  Similarly, my opinion of you is not appropriate for me to post on this forum and so, I don't post it.  It would be appreciated if you would follow my example and cut the crap.  

[8v-of-fury!]

The butthurt form can be found in the faq.

I will head your advice and back down. A pleasure as always Andrew.

[libbydiesel]

I agree, that would certainly have been the most appropriate place for you to have posted all of these comments.

[8v-of-fury!]

I only asked you to prove what you said man..

You said no because we are not worth your time..

Why do you post here then??

[theman53]

At post 37 the comments go from diesel car related to things of no value to us. Bring it back around guys. This isn't a hillbilly forum, we care what is stated and want to maintain our reputation. We used to be of top notch and things of late are dragging us down.

The discussion of quench is a good idea, it fosters growth, and knowledge of diesel cars. Whether or not you agree with someone or not, keep your personal comments to a minimum as we are here to talk about VW diesels.

I just don't know what to do with you guys. I am up for suggestion before people have to get cut out of the equation and be eliminated. The personal jabs over, it is time to all play nice and type nice. The threads are threads, they do not always go linear and that is for our benefit to continue it out for knowledge. Tyler answered the original poster in reply 5 perfectly. Keep going with it is fine, we all can learn from each other, no matter how dumb or smart you think you are.

Lets get back to diesel.