Finally you admit what I a, saying is factual.
I know why it works and why it makes the power. No explanation needed David.
In this case We were discussing 4 motors specifically.
What you explained is the reason why my statements are facts.
My statements have also been proved..
I know a b16 will make more power than a b20. Size isn't all.
But, when motors are pretty much equivalent, size is all.
Example, b16, b20vtec
Example, sr20, ka24, rb25/26
Why do the rb20 and sr20 make around the same power levels usually?
Why does noone care about the ca18?
That was my point that is all. It wasn't meant to be dragged like it did.
Look at my original argument and you see I am stating the truth.
No one sees your point as you are unable to state it in any logical way.
Here is fact. Volumetric efficiency is the only comparision that you need to make between the two engines. Either you understand that or you are over your head in this discussion.
I'm done with this and going to bed
so guys, i actually saw Nelson's KA today and i have to admit....... it did have crazy torque... i guess i stand corrected. There's no way an SR20 could have got in and out of traffic like he was.....
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ImportAtlanta has a new village idiot..... his name is Nelson
What do you think Sinfix, troll or woman?
'92 C2500 6.5 Turbo Diesel | '96 240sx
nothing else to discuss.
/thread
apples to oranges...
Looks like y'all are having a google war up in here lol
Are we still stuck on what motor makes the most power ?
It's pretty easy to grasp that bigger the motor the more power its capable of (depending who built it) this doesn't include rotaries as they are a freak of nature to be able to put out 700+ hp.
I don't see why y'all are arguing? There might be a faster sr motor then a rb25/26 or 1j/2j; but I'm sure it would be much easier to build one of the other motors to run the same or better 1/4 times as the fastest sr did. It's all about suspension setup, reaction times, and the driver at the end of the day. Just because it has 1600whp doesn't mean something with 800whp hooking up can't beat it.
I'm to drunk to taste my chicken /thread
<3 Catnipples
Hahah. I'm not going to read all 14 pages of this shit, but with some very light skimming, I got a good laugh from Nelson's "facts" and statements. I'm sure this will make for a good read later. Of course, this is with my general understanding of engines, and what I know...I am no professional engine builder or hot-shot tuner...but still....one doesn't have to be to see the shit spewing out on Nelson's posts.
02' Miata
You lack the mental capacity to have a serious debate on this topic. You simply do not understand anything. You're redistributing something you've heard or read, you have no experience or understanding. I feel like i'm speaking French to a 7 year old Japanese kid.
You're stuck on this issue of torque..... at what point did torque become the end all of racing? My Harley has more TQ and HP than my CBR.... even weighs about the same.... Do you think putting my Harley engine in my CBR would make it faster?
A motorcycle has hardly any torque at all, yet every motorcycle on the market runs 10s off the show room floor. Why do you think that is? Obvious answer right? the weight difference. Ok, i've already attempted to explain to you the difference between torque and hp, torque is the ability to move weight.... in common terms, and hp is the ability to accelerate weight in motion. The amount of torque you need depends on the weight of the vehicle. There's no concrete evidence that suggest more torque = faster. You reach a point where enough torque is enough torque... having more of it just doesnt matter. It can even become a burden.
Please stop embarrassing yourself and let this topic die. I dont even care kid. I will probably never touch another SR20 again in my lifetime......
Last edited by Sinfix_15; 12-18-2012 at 11:08 AM.
Ideal volumetric efficiency
V_ideal = D*N/2
d= displacement
n= engine speed in rpm
so again
(ka24) 2389*7/2= 8,361.5
(rb25) 2498*8/2=9,992
(rb26) 2568*8/2=10,272
(sr20) 1998*8/2=7,992
So In order, the ideal volumetric effiency goes from sr20, ka24, rb25, rb26 (low to high)
Does this not also show that displacement is a huge factor?
Hope I used enough proof this time.
Last edited by nelson9995; 12-18-2012 at 11:29 AM.
You have no idea how to calculate volumetric efficiency.
Here is a primer:
Volumetric Efficiency:L Calculating your cars volumetric efficiency
http://www.epi-eng.com/piston_engine...efficiency.htm
Last edited by David88vert; 12-18-2012 at 12:29 PM.
"Racing is life. Anything before or after is just waiting." - Steve McQueen
Ideal volumetric efficiency
V_ideal = D*N/2
d= displacement
n= engine speed in rpm
so again
(ka24) 2389*7/2= 8,361.5
(rb25) 2498*8/2=9,992
(rb26) 2568*8/2=10,272
(sr20) 1998*8/2=7,992
So In order, the ideal volumetric effiency goes from sr20, ka24, rb25, rb26 (low to high)
Does this not also show that displacement is a huge factor?
Doesn't it also show that the other 3 motors will make more power with the same amount of work/money?
sinfix- please elaborate
Ok, so David mentions something and you go and google it attempting to sound intelligent. You've managed again to make yourself look even dumber.
Please kid, for the love of god quit embarrassing yourself. You lack the mental capacity to debate this topic...... move on. Do you not understand how stupid your little math equation is? seriously... when you typed that shit out did you really think you were making any type of point? good god man................
"Volumetric efficiency in internal combustion engine design refers to the efficiency with which the engine can move the charge into and out of the cylinders. More specifically, volumetric efficiency is a ratio (or percentage) of what quantity of fuel and air actually enters the cylinder during induction to the actual capacity of the cylinder under static conditions. Therefore, those engines that can create higher induction manifold pressures - above ambient - will have efficiencies greater than 100%. Volumetric efficiencies can be improved in a number of ways, but most notably the size of the valve openings compared to the volume of the cylinder and streamlining the ports. Engines with higher volumetric efficiency will generally be able to run at higher speeds (commonly measured in RPM) and produce more overall power due to less parasitic power loss moving air in and out of the engine.
There are several standard ways to improve volumetric efficiency. A common approach for manufacturers is to use larger valves or multiple valves. Larger valves increase flow but weigh more. Multi-valve engines combine two or more smaller valves with areas greater than a single, large valve while having less weight, but with added complexity. Carefully streamlining the ports increases flow capability. This is referred to as porting and is done with the aid of an air flow bench for testing. Another major aspect of design is to use a crossflow cylinder head, which has become the standard configuration in modern engines.
Many high performance cars use carefully arranged air intakes and tuned exhaust systems to push air into and out of the cylinders, making use of the resonance of the system. Two-stroke engines take this concept even further with expansion chambers that return the escaping air-fuel mixture back to the cylinder. A more modern technique, variable valve timing, attempts to address changes in volumetric efficiency with changes in speed of the engine: at higher speeds the engine needs the valves open for a greater percentage of the cycle time to move the charge in and out of the engine.
Volumetric efficiencies above 100% can be reached by using forced induction such as supercharging or turbocharging. With proper tuning, volumetric efficiencies above 100% can also be reached by naturally aspirated engines. The limit for naturally aspirated engines is about 137%;[1] these engines are typically of a DOHC layout with four valves per cylinder.
More "radical" solutions include the sleeve valve design, in which the valves are replaced outright with a rotating sleeve around the piston, or alternately a rotating sleeve under the cylinder head. In this system the ports can be as large as necessary, up to that of the entire cylinder wall. However there is a practical upper limit due to the strength of the sleeve, at larger sizes the pressure inside the cylinder can "pop" the sleeve if the port is too large.
Volumetric Efficiency is frequently abbreviated as "VE" when discussing engine efficiency."
THIS IS THE PART THAT MATTERS YOU MOTHER FUCKING BRAID DEAD DIPSHIT.
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Nelson - "herp derp derp derp derp if i multiply the displacements by the same number i get a larger number from the larger displacements, herp derp derp derp 3 is a bigger number than 2... herp derp derp derp"
quit embarrassing yourself you stupid mother fucker
YOU FUCKING FUCKTARD!
It can be improved in a number of ways but all those 4 motors can be worked on and improved.
I KEEP REPEATING SAME WORK SAME MONEY
Meaning anything you do to raise the volumetric efficienecy in an sr20 has to be done to the other 3 motors.
You keep bringing things up that are irrelevant sinfix.
I mention something you bring a thousand obstacles on how this and that.
I keep repeating SAME WORK SAME MONEY
Does that not matter?
You are making an incorrect assumption in stating that any work done to one can be done to the others.
If you machine a block, you can only go so far until you reach a point where the cylinder walls are too thin, or hit a water jacket. Different blocks utilize different amounts of materials. You need to look at how far a block can be bored out safely. I am not familiar with KA, RB, and SR engines to know their maximum bore sizes, but I know that it is unlikely that all of them are the same amount.
"Racing is life. Anything before or after is just waiting." - Steve McQueen
Nelson......
"Better to remain silent and be thought a fool than to speak out and remove all doubt"
David mentioned something a few pages back that went over your head. You went and googled it and came back with a math equation that you were so proud of. Your math did nothing other than make you look like an even bigger jackass. You simply lack the mental ability to understand how what you're saying is so dumb. You cant be reasoned with. Your intelligence level just isnt up to par.
There's a reason everyone thinks you're an idiot.
You could have raced me anytime in the last 5 years. Yep.... all i have is a pretend evo...... and a CBR.... and a 2012 Harley...
You get older kid.... i'm 29 years old. Ive been drag racing since i was 16.... it doesnt make my balls tingle anymore. Maybe someday it will again, but now i need a break. You're at that age where you want to have a dick swinging contest with everything on 4 wheels.... good for you. I dont care...... Let me spoil the surprise for you, you're not the fastest car out there, not even close..... using a KA... you never will be.
I'm intellectually superior to you. That is what i came here to prove. I've done that.
I haven't raced in over a year man. Honestly.
I know ka24's aren't the shit. I honestly believe sr20's are more well rounded.
That wasn't my argument. My argument was what makes more power that is all.
You have proved that you can use better words than me and yes bring a better argument.
You have not proved why the sr20 makes more power.
I'm just going to leave the argument here.
This wasn't a dick measuring contest man at all man.
Never intended it to be, and it never was.
This is what makes my dick hard these days......
Not this......
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"Racing is life. Anything before or after is just waiting." - Steve McQueen
I agree that the RB26 is superior to the SR20.... but with an * that says that the world's fastest SR20 is faster than the worlds fastest RB26. Point being, regardless of which one your favor.... the SR20 will not sell you short on your goals, whatever they may be.
He strayed away from his KA vs SR argument and started using the RB26 as an example. SR>KA, hands down.
Rotary > All