First off, Jerry, that was eloquent. Kudos on a well-written post.
Wow Dallas, I'll have to give you one thing.....you are nothing if not WINDY !! Matter of fact, I think I'll have to award you the title of Grand Master of Windy. You've got the best line I've ever heard. The ability of a GMI graduate to run thoughts together like you do while lacking proper spelling and punctuation is priceless!!!
"Besides that i have run 10's with IRON HEADS and LESS than 11-1 comp on pmp gas with an olds engine in a big azz 4dr 84 98 regency and that was in the 80's nor was it a stroker engine and it retained all its amenities and accessories..How fast have u gone in anything Olds Powered that u may have built anytime in ur life, let alone thru mufflers on pmp gas in full dress street trim including tail pipes ?"
AWWW heck Dallas, I've done the same thing runnin' on a blend of orange juice and Dr. Pepper, using a rubber cam so that the grind got wilder as the revs increased.
"Addditionally to all that drag racing experience almost exclusively with GM BOP engined cars, I am a graduate of GMI, General Motors Institute with a Mechanical Engineering degree in AUTOMOTIVE APPLICATIONS. Tho i was trained as a machinist during my degree program, i farm that out when i build an engine, even then i specify specs not rely on the machinist to decide."
Yep, I can see you now, leaning into that machinist with your hands on your hips, lips pursed, scowl on your face like you knew it all and were gonna show this lowly machinist a thing or two.....Dallas, you are such a phony....HAHAHAHAHAHA...:LOL:
"In fact for the past 22 years i have lived directly across the street from The Buick City assembly complex"
Cool, for the past 22 years I have lived directly across the street from the Y'all Crawl Back Saloon, diagonally across the street from Bob's Shoe Repair and Beauty Shop.
"Many of my best and closet friends are retired and or current BOP hourly workers and engineers and corporate types."
Many of my best and closest friends are retired as well, but we don't know or even claim to know any "corporate types". Sounds pretty corny to me.
"YOU may b older than me, and u may have even started drag racing in ur own rides that u actually wrenched and built before i did, but u adhere to a number of the unfounded wives tales common among racers who have only some experience, no formal education in the field of engineering as it applies to automotive applications as i have."
Geez Dallas, if what you have shown here is an example of a formal education, then I'll have to pass on that. Now, exactly what unfounded wive's tales are you referring to?
"like that crap about a thicker head gasket makin for more squish. it doesn't and in fact it can't."
Come on Dallas, if you let yourself relax and just think about this a little bit....squish is the distance from the piston crown to the underside of the cylinder head with the piston at TDC and includes the thickness of the head gasket. If you increase the thickness of the gasket, you MUST increase the squish. Even a 5th grader could see that.
"In any internal combustion engine the piston crown stops at some point in the cylinder at TDC. in the case of the Olds engines with flat top pistons, domed or dished that would b w/ said base surface of the piston crown .045 into the cyl. unless u change the crown height of the piston and or the rod lenth w/o changeing the wrist pin position, u can not increase the volume above that point without lowering mechanical compression which will also lower static cyl pressure or static compression as its called. the diff tween static and mechanical compression as u obviously do not comprehend is the pressure in the cyl at TDC when the engine is cold and NOT RUNNING and that when the engine is runnng at normal operatin temp, thas why same is CHECKED ONLY IN A HOT ENGINE."
Dallas, I'll have to give you a C- on this part. You have skirted all around the issue without actually identifying static compression ratio and dynamic compression ratio. Cold engine, hot engine has nothing to do with it. Static means at rest, not moving. The static compression ratio is calculated with 5 values and will not change at any time beyond when the motor is assembled with these values in place....
1. cylinder volume
2. combustion chamber volume
3. piston crown volume
4. piston deck volume
5. head gasket volume
Dynamic compression ratio, on the other hand, changes constantly as the motor is running and is highest at or close to the torque peak of the motor. Dynamic = variation in force or intensity.
"u simply can not increase the area in which the mixture is compressed without lowering the pressure w/o changing the position in the cyl at which the piston rests at TDC and BDC."
You continue to be confused about this Dallas. It's very sad. First off, it's not an area. It's a volume. Area is used in a two dimensional context. Secondly, you can change the volume by changing the block deck height or by changing the gasket thickness.
"a thicker head gasket increases this, the same as shaving the block deck or the head deck decreases it."
Good boy Dallas, you're starting to come around. I'm pleased.
"I am a person who imparts only information that i actually KNOW from BOTH experience and education"
Well Dallas, that seems to be where we have a problem, because I'm thinkin' that in your mind, you think you're correct. I've already commented on your education, so I won't bruise you any further with my thoughts on that.
"Otherwise, if u analgolize, in this case Olds engines to a rooster and i told u a rooster dips snuff, u could find a fresh tin of skoal under his left wing, copenhagen under its right."
WHOA, STOP THE PRESSES. What was that word? Analgolize?? Holy Moses, that must be a word you learned at the GMI.....You college fellows are mighty empressive, yes sir, mighty impressive. :whacked:
"ur welcome to disgree with my assement on this subject, in fact i invite same, much of what i have discovered before and since school about this subject was born of someone disagreeing with me. However if u do so with such disrespect and antagonizm as u have u can expect same in return. in my vernaular, we call that playin the dozens, panning, capping, stinging on folk and i was better at that when i was a teenager than u'll b if ya live to b 200. In other words u got nothing coming on that tip. Better u remain respectful in whatever disagrement with me that u impart to me unless u enjoy gettin ur cap and or ur wig twisted with ur own BS rhetoric back in ur face. Thats in MY vernacular, in urs its likely ," unless u enjoy gettin laughed at and embarrassed"."
Disrespect and antagonism? Is that what you call it when someone corrects you? I don't know what kind of crowd you run with Dallas, but if you are going to come around here blowin' off, then you had better have your ducks in a row and know what you're talking about. It's kind of sad that you don't know you're the one being laughed at right now. You're just doin' this with tongue in cheek aren't you Dallas, come on, fess up, you're just havin' fun aren't you?? :LOL:
"MY moto, before ya claim something u think u know is fact, make it make sense, and ur premise of increaseing com chamber volume in any way w/o changeing the piston position at top dead center does not and can not make sense, nor can u logicall defend such a position."
OK, in one breath, you are saying you can't change chamber volume by changing the gasket. In the following statement, you're saying the exact opposite.
"As i said, the idea of useing a thicker head gasket to lower mechanical and by association static compression is a ploy which i have used for decades with total success. in fact before the advent of really hgh compressed thickness head gaskets i used 1st indian head and later COPPER COAT spray contact sealant from 3M to bond a number of thin sheet steel or copper head gaskets together to achieve my desired chamber volume and by association my final mechanical AND static compression ratio. The 406 SBC i now have in my WORK truck indeed has a set of 125.00 a piece composite head gaskets from Fel-Pro that u like as not didn't even know existed let alone someone offered, and THATS JOBBER NET PRICE."
Geez Dallas, I didn't even know those existed!!! Is that jobber net price???
"At the end of the day, keep this respectful and about the subject at hand rather than antagonistic and disrespectful when u post something to or about me. It isn't a gurantee, but 1st giving respect is the only way u can ever get any. YOU claim to B older and more experienced than myself in this field and u seem to want respect for that, which im more than willing to give ya, so long as with me u expect it with respect to me as u would have me do YOU.
The post that u made to which this is a reply is what folk like me consider to b playing, like i say, "playing the dozens"; unfortunately for that aim, I DO NOT PLAY, I never have, i jus like toys."
Playin'? No, I'm just trying to correct your erroneous thinking before someone on here takes you seriously. I couldn't give two hoots in hell for your respect and don't give two hoots in hell if you respect me. What I am concerned about is that some of your illogical thoughts will pervade the minds of onlookers here.
Again, I'm not sure whether you're just shinin' us on or whether you actually believe all the trash you lay out. Either way, I will continue to counter your illogical thoughts with the light of truth.
__________________
Dallas
