Nunley - RE: " Compression is, "the Holy Grail."

Yeti Racing

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Nunley - RE: " Compression is, "the Holy Grail."

I know I shouldn't but I just can't resist.......I've got the mid afternoon blues work is draining & Bob's cast of characters brings a smile to my mug & day...... So Lord forgive me but... I'LL BITE...hook line & SINKER. And I know this ship is sunk before it leaves dry dock considering the argumentee.. :p

Al, HYPOTHETICALLY speaking, if you pilot 2 similar KT100 Yami (since that's one ur expertise's & well beyond mine) karts & on the same track & most all variables equal except kart A has a 9cc combustion chamber with a high compression ratio & stock porting, & Kart B is appropriately ported top/bottom end to maximize flow in/out with a lower 10.5 - 11cc combustion chamber and a significantly lower compression ratio & assuming equal driver earnest efforts, ---- WHICH kart turns in the lowest lap time ?


To all & regulars my sincere oligopolies but I just couldn't resist.. I don't know how u guys show such restraint. Al leaves these big pieces of bate out their like Bloody CHUM in the water and sometimes ....it's.... just like a fresh brick oven baked aroma of a well-done sausage & red onion pizza with extra sauce & a cold Sam Adams after a long day at work on a Saturday.....U just say Damn the Torpedo's, screw this frecking diet .... " I'll take 2 slices & a cold Sammy Winter Lager PLEASE" !!! and if u ever tell the Mrs. u can forget ur tip and next time I'll only have one piece ...well... maybe not but .... I won't have seconds and that's for sure dag nab it.. :p
 
Nunley - RE: " Compression is, "the Holy Grail."

Al, HYPOTHETICALLY speaking, if you pilot 2 similar KT100 Yami (since that's one ur expertise's & well beyond mine) karts & on the same track & most all variables equal except kart A has a 9cc combustion chamber with a high compression ratio & stock porting, & Kart B is appropriately ported top/bottom end to maximize flow in/out with a lower 10.5 - 11cc combustion chamber and a significantly lower compression ratio & assuming equal driver earnest efforts, ---- WHICH kart turns in the lowest lap time ?
You must think me stupid or something!
I avoid trap doors whenever possible, and that’s what it seems you’re trying to get me to stand on. Sorry, your immature, childish trickery is not going to work here.
Perhaps you should listen to your own advice??
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory.
 
Well that hole question made a lot of sense.
One thing I have learned in the 8 years I have been teaching is that there is a limit to intelligents but no limit to stupidity.
 
Ill take a shot at this. Neither engine will preform up to optimun potential, becuse they are not developed to maximise the modifacitions added to them. First the engine with all the port work cannot take full advantage of the free flowing cylinder work without the compression.Second the engine with the compression will not flow well without the port work to allow it to do so. In your hypathedical question neither engine is built correctly they only have part of the equation and an idiot built them. A correctly modified engine will have all the mods you mentioned in each of the two. But if I had to choose one to run the fastest it would be the ported engine becuse it will flow better. There ya go you hooked one now reel em in without breaking him off. It wasent Al but ya got a big un. LOL
 
I'll bite, how can anything be chizled in stone when , you've only given 1 part of the total combination that it takes to win? I can tell you that there are things like tires, preps, chassis set-ups and driver that can take seemingly mediocher equipment and make it a winner. E.G., we've won a few races with stock bore and stroke Sudams, in the past 4 yrs.
 
Higher compression ratios / Higher compression "pressure" produces power. It also produces heat. So the limiting factor to how far you can go will always be detonation and/or pre ignition. These can be somewhat controlled by other influences: Timing (either to retard or advance) I have found there is a "sweet spot" for a giving setup. It can be very narrow and you may have a bucket of pistons before you find it. But where that sweet spot is generally will surprise you. Another influence is tuned pipe length. Again-There is a sweet spot that lowers your detonation chances. There are others but these are two biggies, aside from fuel mixture of course. Some of my best motors were always high compression ratio motors that had seemingly limitless overev. Why? I don't know- Except to say that the "influences" that negated detonation were DEAD ON. That is a killer setup.
 
I'll bite, how can anything be chizled in stone when , you've only given 1 part of the total combination that it takes to win?
come on Jack, did I ever say, even one time, that all it takes is high compression do win? I have stated many times, "all things being equal, compression is the Holy Grail." I don't always put it that way, but the implication is there.
 
Al, the same thing back at you, I totally agree with you on the aspect of compression, my post was in reply to the question of engine H.P., and the fact that it is only 1 integral part of winning combinations. Once again, you are far too sensitive in that you think everyone is out to dis you.
 
Been trying to educate myself on ignition timing advance retard curves ect. Interesting reading and pressure related to compression and the 2 cycle systems. 4 cycles building more pressure with rpm and 2 cycles not so much. As a matter if fact the higher rpm range in the 2 cycles requires retarding the spark. There's allot going on in a 2 smoker to say one thing or the other is the holy grail.

Just a general statement not applying it to anyone in particular.
 
You must think me stupid or something!
I avoid trap doors whenever possible, and that’s what it seems you’re trying to get me to stand on. Sorry, your immature, childish trickery is not going to work here.
Perhaps you should listen to your own advice??
Comments compliments criticisms and questions always welcome.
If the data does not support the theory, get a new theory.

Thats code for "I dont have an answer so instead ill avoid the question"
 
Ok 2pm mid afternoon blues again so thought I'd check in & crack a smile bc I'm tired of filling work orders & laboring away then no ones got money to pay for what they requested to be done in a rush... DEPRESSING ... Gee Wiz what happened to having money in ur wallet before u went shopping in America ?

Come on Jack, that's a politician's non-committal podium answer at an election debate. commit to a side like "Glider" my day is already stressful, this is my feel good therapy, cut me some slack it's covered... " HYPOTHETICALLY speaking, if you pilot 2 similar KT100 Yami karts & on the same track & most all variables are equal except... " Come on "Old" U know... did u forget the master's teaching ?

I expected a dead on nuts answer from u Michael being a professor with that dyno and all.

I'm waiting on "THE big fish" to knock it out of the park.

Nunley - RE: " Compression is, "the Holy Grail."

Al, HYPOTHETICALLY speaking, if you pilot 2 similar KT100 Yami (since that's one ur expertise's & well beyond mine) karts & on the same track & most all variables equal except kart A has a 9cc combustion chamber with a high compression ratio & stock porting, & Kart B is appropriately ported top/bottom end to maximize flow in/out with a lower 10.5 - 11cc combustion chamber and a significantly lower compression ratio & assuming equal driver earnest efforts, ---- WHICH kart turns in the lowest lap time ?

I'll bite, how can anything be chizled in stone when , you've only given 1 part of the total combination that it takes to win? I can tell you that there are things like tires, preps, chassis set-ups and driver that can take seemingly mediocher equipment and make it a winner. E.G., we've won a few races with stock bore and stroke Sudams, in the past 4 yrs.
 
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Ok Chris all engines have a optimal sweet spot but that doesn't answer the question nor did u choose Kart A or Kart B like "Glider" did. But it sure seems you're choosing kart A. Simply IF there were more at stake & IF IF HYPOTHETICALLY u got UR racers machismo in a fluff and assuming no act of G_d or kart break down & IF IF u were to wager Free SuperFly Wej Wings to all participants on THIS argument/discussion based on your choice which would u choose & why (actually not a bad $78 promotional/marketing idea since most would probably buy ur $399 SuperFly Wej Bodeez body Kit to go with it) ? :p

Higher compression ratios / Higher compression "pressure" produces power. It also produces heat. So the limiting factor to how far you can go will always be detonation and/or pre ignition. These can be somewhat controlled by other influences: Timing (either to retard or advance) I have found there is a "sweet spot" for a giving setup. It can be very narrow and you may have a bucket of pistons before you find it. But where that sweet spot is generally will surprise you. Another influence is tuned pipe length. Again-There is a sweet spot that lowers your detonation chances. There are others but these are two biggies, aside from fuel mixture of course. Some of my best motors were always high compression ratio motors that had seemingly limitless overev. Why? I don't know- Except to say that the "influences" that negated detonation were DEAD ON. That is a killer setup.
 
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No back peddling or post statement qualifications, Al. U clearly & unequivocally made your statement. It was not taken out of context, perverted or manipulated, or altered and was straight forward statement by you. It's all there in black & blue (not actually black & white) :p You own it . (at least until " Bob crash II - The Saga ") ;p

come on Jack, did I ever say, even one time, that all it takes is high compression do win? I have stated many times, "all things being equal, compression is the Holy Grail." I don't always put it that way, but the implication is there.
 
Considering all the old Bob's pre crash threads for years on end. That's pretty damn funny LOL :p

Al, the same thing back at you, I totally agree with you on the aspect of compression, my post was in reply to the question of engine H.P., and the fact that it is only 1 integral part of winning combinations. Once again, you are far too sensitive in that you think everyone is out to dis you.
 
Tim that was a base hit. : ) non-committal but a solid base hit.
" There's allot going on in a 2 smoker to say one thing or the other is the holy grail. "
Tim - HYPOTHETICALLY given the scenario - Kart A or B & why ?


Been trying to educate myself on ignition timing advance retard curves ect. Interesting reading and pressure related to compression and the 2 cycle systems. 4 cycles building more pressure with rpm and 2 cycles not so much. As a matter if fact the higher rpm range in the 2 cycles requires retarding the spark. There's allot going on in a 2 smoker to say one thing or the other is the holy grail.

Just a general statement not applying it to anyone in particular.
 
JPM - BANG ! Line drive hits the fastball pitcher in the forehead for "goose egg" and he's out cold on the mound. They're bringing in the golf kart and Skipper is go'n to the bull pen. LOL !! :p Now this is some therapy money just can't buy ! I might be able to work in the shoppe until 7pm tonight :p You guys are great. Man this banter is what makes Bob's drama better than any kart site or kindle download on the web. Absolutely Classic !

Thats code for "I dont have an answer so instead ill avoid the question"
 
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Well hell I got nothing to loose here. Are both on gas? Well I pick B. Port work and cc is what my yammi had. It was pretty quick for a yammi. Compression is important put not the whole equation there are other things to take into account.

Frankie
 
fastyammy - has ante'd up & is in the game & has called... He's goin with Kart B with Glider. You got to respect at least these guys show no fear, are competitive, & are in the hunt.

" Are both on gas?" - HYPOTHETICALLY speaking, if you pilot 2 similar KT100 Yami karts & on the same track & most all variables are equal except... "

Well hell I got nothing to loose here. Are both on gas? Well I pick B. Port work and cc is what my yammi had. It was pretty quick for a yammi. Compression is important put not the whole equation there are other things to take into account.

Frankie
 
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