John Erb
Chief Engineer,
KB Pistons

http://www.beckracing.com/page14.htm

THere's all you need to know.

Keep spewing the BS, there are lots of people on the floor laughing by now.

I guess you're really looking bad now 5-7?

 

I only wish I had some popcorn and a

 

uh no, there is no one laughing, cept you, cause your monkey brain doesn't get ****. DOn't send me some stupid ******* webpage you dipshit deluxe. I don't give two ***** about what they have to say; if you are attempting to regurgitate it, it's worthless. BTW, when Beck Racing Engines wins an Engine Masters Challenge, I'll consider giving a crap about what they have to say. Why don't u go "adjust your timing event" and figure out why your engine is only making 1200 psi after combustion ****-for-brains

 

So will someone clarify what the debate is about here? I thought the original post was about most static compression on pump gas?

I want to avoid the bitchfest and correcting quite a few posts that are obviousily wrong, and keep to the technical discussion.

 

I think ******** got confused and lost his "point" long ago. Now he resorts to pathetic name calling, admitting he "doesn't get ****", then posts URLs and goes "durka durr this is what u need to read durr" like the drooling, double digit IQ retard he is.

Tell me more about this 1200 psi cylinder pressure fucktard.

 

Interesting, I was hoping for a disussion about Dynamic Compression ratio and it's application in a street car.

 

I tried mate, I really did. But you can't reason with a ****-flinging ape. Only thing you can do is hurl his feces back at him.

 

Hey 5-7,

Post a link to prove you have 120,000 PSI during combustion.

Otherwise go home.

Tomorrow when I have a little time, I'll post a graph from my engine technology
book which clearly shows the combustion pressures from every degree
in the cycle.

MustangEater,

This started out as highest compression on pump gas with 100 shot of nitrous.

Then it turned into cylinder pressure before and after ignition with nitrous.

Now some idiot named 5-7 is just spilling crap about 120,000 PSI power strokes!

Wow, I wonder if top fuel cars get half that much.

 

hahah suddenly URLs = proof? Look, human fungus, you don't get what a combustion reaction is so let's spell it out for you in simple terms. Basic Octane combustion reaction.

Octane Combustion
C8H18 + 12.5O2 --> 8CO2 + 9H2O

for every MOLE of C8H18 (octane) burned, 8 MOLES of CO2 are produced, along with 9 Moles of H2O (which would be in vapor form). That gas produces huge pressure. The large evolution of GAS is why EXPLOSIVES do the damage they do. You ******* clueless tard. Of course, as gases EXPAND their pressure drops, but I really think gas laws are beyond the scope of your intellect.

Now let's take this into consideration. Basic ARP bolts have a tensile strength of 190000 psi. Do you ******* think that if cylinder pressures AFTER combustion were as low as 1200 psi, you'd need a bolt ANYWHERE NEAR 190000 psi tensile strength????? You could probably get by with NYLON as I said earlier. And consider this, the high end ARP bolts are 220000 psi tensile strength. If 190000 psi tensile strength bolt is STRETCHED, it means a force in excess of 190000 psi. And this happens frequently in racing motors or poorly built ones. Cylinder heads getting blown off the block, rods going through the oil pan, or pistons flying up into the cylinder head. Put it together

 

Why does he have to post a link? All that proves is he can google things, anyway not all things found in "links" are true.

A Stock Cube LS1 running on pump gas with a 100 shot could run a healthy compression, it all depends on the combination. I'll try to keep this a puerile as I can for the normal LS1tech member It (the cam) would have to be a "wide" camshaft that "bleeds" off loads of cylinder pressure. Naturally aspirated it's rather simple to run 12.0:1 + on 93 octane once you start factoring in Nitrous in to a Naturally Aspirated combo it complicates things.

If it was my car I'd build the combo to run on 93 octane Naturally Aspirated and try to spray it. There is some leeway with these things, although you would have to take out some timing once you start using nitrous.

 

rflmao, dipshit, stop talking, you don't know crap. Take your ugly, slow, jank *** second gen driving stupidity the **** off this site. This site doesn't need flea brained ******** like yourself. JUST BECAUSE YOUR DUMB *** DOESN'T GET SOMETHING DOESN'T MEAN IT DOESN'T WORK. ******* idiot

 

Remember Floyd, if it's on the internet it must be true. God forbid this ******* retard where to open a physics text book...

 

OK, so you guys spill nonsense and can't back it up, but we're supposed to
believe you.

But I can't post links from NOS, KB Pistons, etc.?

Alright little boys and girls, here's the picture I promised from my book:



Notice the left axis scale peaks at 700 PSI for a naturally aspirated engine.

You might get 1200 PSI for 100 shot of nitrous.

Now I have two credible items stating combustion pressure.

As for the 190,000 PSI tensile strength:
So , to prove you're even more of a moron, TENSILE means to stretch.

You don't use TENSILE Values on the power stroke because that would be
compressing the rod! Look it up in the dictionary.

The TENSILE stregth of the bolt is to hold the rod caps in place while
the PISTON, CONNECTING ROD, RINGS fly around at 7000 RPM!

Ever wonder how much that assembly would weigh spinning that fast?

So now I've proved even 5-7 wrong with pictures and credible links.

Are you all being one sided because I'm new? Really, this is either a really
bad joke, or 5-7 is the dumbest person on this site. ANyone who believes
this guy is a fool.

 

By the way 5-7, it's pretty ignorant of you to assume I don't have a physics/science/chem background.

I can take a pic of all of my College text books and degree if you like?

Here's a little lesson on crank angle since you brought that up too.

Can anyone tell me what the crank angle is when the piston is at TDC?
Use this diagram to figure it out...because 5-7 doesn't get it.

 

Me=

 

It isn't nonsense you dipshit. A combustion reaction has a huge amount of pressure. I don't need to post links about scientific facts that have been known for decades if not centuries because you have never once in your entire worthless life, opened a physics book. I tried with examples, and similar instances (firearms), but you didn't get it, and you're the ONLY one who doesn't get it. Stop pretending to speak for a group, the only ignorant, dumb mother ****** is you. No one here is anywhere near as dumb as you or would want to be associated with you.
You don't get a damned thing do you? I tried explaining specific impulse to you. For HALF A MILLISECOND, the chamber pressure is at ~120000 psi for a 10.5:1 compression 350. Dynamics is too hard for you to understand? It isn't a constant 120000 psi you incredible dumbshit, it's instantaneous; that's the specific impulse, that's what gets the piston going down the cylinder, momentum does the rest, friction slows it down. AS THE PISTON GOES DOWN, THE VOLUME INCREASES AND PRESSURE DECREASES. DURKA ******* DURR.
you can post all the websites you want, it doesn't make your understanding of ANYTHING any better. Google searches aren't science.

Thought I said that *******
The TENSILE stregth of the bolt is to hold the rod caps in place while
the PISTON, CONNECTING ROD, RINGS fly around at 7000 RPM![/QUOTE]You don't even have your definition right. Tensile strength is a rating. If the 190000 psi rating is exceeding, the bolt will stretch. That force comes from somewhere moron. With all bolts after combustion, they are withstanding the huge, instantaneous cylinder pressures. When the piston STOPS and goes to other way, its ONLY because another cylinder is going down the cylinder and sending the other one up. Sure there is energy lost in friction etc., but it's close to the same. You missed that part about

you haven't proven **** you ******* retard. I bet you're a GED holding dumb **** redneck, hanging out in a trailer posting "credible links". You can't even comprehend a 1/4 of the **** in the links you post, and have zero comprehension on well established scientific theories and laws. You are the most blockheaded son of a bitch I've ever seen. Go take a ******* science course and learn something. No I will not go search google to send you ******* links. I suppose if a Doctor is explaining how the Histoplasmosis is turning your brain into mush, you wouldn't believe him until he send you a ******* google link? ******* pathetic. I guess the ultimate proof of your inability to build motors and comprehend this **** is the fact that your car is slow and always will be. Don't waste my time until you can present knowledge that you actually learned and can demonstrate; not mindless posting URLs and going "see, I'm right". Cause you aren't.

 

doesn't prove ****, you haven't opened them., Show me your semester grades.


[/QUOTE]I don't see a piston at TDC in any of your little pictures kiddo. if it where, the pink dotted line would be staight up and down. Go away inbreed. TDC is at an instant. Everything is at an instant. It's dynamics. get a graph, and you'll see it. Nice try, **** off now

 

Did you miss the picture I posted out of my engine technology book?

Here is it again since you 're too busy trying to sound smart instead of reading
my posts and learning.



P.S. Read back a couple of posts too, you missed some good stuff.

You take the cake over Terry Vance. You make him look like a genious.

 

Anyone with an ounce of intelligence doesn't need a diagram to know the
crank angle at TDC.

I just posted those for you to help your little mind out.

WHy don't you answer ANY of my questions, or provide PROOF to ANY of your
posts?

Maybe because you don't know **** and you can't find any books, or links
to verify your BS.

The ball is in your court. You haven't proved a thing...except that you're a
hopeless case.

 

who is stupid enough to think that sb physics doesn't apply to the LS1??

the only thing this thread proved to me is that having a fast car means u know exactly jack ****.

there's a lot of BS flying around in here but i don't see any from Adrenaline. maybe that's just because i'm not blinded by owning an LS1 and just working on them.