Noob post - SR vs RB

[fliprayzin240sx]

Fuck, this thread is still alive?!?!

[S12 Drifter]

Originally Posted by jr_ss

That's your personal opinion, just like it is everyone else's that doesn't like the RB20. Don't get so butt hurt over it.



That's not efficieny though... Your using more cylinders, more fuel, more drag, more everything to make those numbers with more rotating mass and parts. It makes them less efficient, not more efficient. Now can those larger motors can be more reliable because they have less stresses on those internal parts, yes.

and all that cancels it's self out BECAUSE the inline 6 is naturally a perfect balance.

a 1000hp v8 vs 1000hp 4 cylinder.

4 cylinder keeps up with v8 but AT WHAT COST?!?!? 1,000hp for a V8 IS NOT THE SAME 1,000hp for a 4 cylinder to COMPLETELY different power ranges the END RESULT is 1,000hp

the V8 is making a easy 125hp per cylinder while the 4 cylinder is making 250hp per cylinder, the 4 cylinder is doing 2 TIMES THE WORK! for the same result as a v8 doing LESS work making more power. in other words if the V8 had to push 250hp per cylinder it would be 2,000hp with the same work as your 4 cylinder.

additional the 4 cylinder is the ROUGHEST running engine by nature. V8 and inline 6 are POSSIBLY the smoothest running engines by nature.

[OrangeVirus1]

Originally Posted by hobbs

No way the RB20 is only 100lbs heavier, no way in hell.

my bad, I read again, the RB20 is 100lbs heavier than the KA.

Originally Posted by jr_ss

Don't get so butt hurt over it.

Hey I'm not, I'm done trying to argue with anyone about anything. I'm just having fun with my car now.

Originally Posted by S12 Drifter

and all that cancels it's self out BECAUSE the inline 6 is naturally a perfect balance.

a 1000hp v8 vs 1000hp 4 cylinder.

4 cylinder keeps up with v8 but AT WHAT COST?!?!? 1,000hp for a V8 IS NOT THE SAME 1,000hp for a 4 cylinder to COMPLETELY different power ranges the END RESULT is 1,000hp

the V8 is making a easy 125hp per cylinder while the 4 cylinder is making 250hp per cylinder, the 4 cylinder is doing 2 TIMES THE WORK! for the same result as a v8 doing LESS work making more power. in other words if the V8 had to push 250hp per cylinder it would be 2,000hp with the same work as your 4 cylinder.

additional the 4 cylinder is the ROUGHEST running engine by nature. V8 and inline 6 are POSSIBLY the smoothest running engines by nature.

I just realized it's retarded to argue about efficiency unless you have programs and machines to calculate all variables, Perfect intake runner / manifold balance, head porting size.. cylinder design, piston design, Rod to piston length ratio, there is just too much shit.

and I'd have to say a 3 cylinder is pretty rough.

[S12 Drifter]

rocker arm is terrible you lose energy over a large area this is why the VG30DET, CA18DET, KA24DE, RB20/25/26, VK, VH, FJ, S20 are all cam on bucket the faster you get your motion to the lifter and to the bucket the faster you have a valve action, you may have a rocker but it takes energy and the metals flex slightly not much but they do in very small amounts, you need to take up slack of the rocker and lifter even if it is hydraulic it still has a bit of slack.

this is why cam on bucket motors run just a bit better then rocker arm, and the not least but push rods which SUCK!

even worse then push rod is a flat head ford with valves built into the block... two stroke status.

[OrangeVirus1]

Originally Posted by S12 Drifter

rocker arm is terrible you lose energy over a large area this is why the VG30DET, CA18DET, KA24DE, RB20/25/26, VK, VH, FJ, S20 are all cam on bucket the faster you get your motion to the lifter and to the bucket the faster you have a valve action, you may have a rocker but it takes energy and the metals flex slightly not much but they do in very small amounts, you need to take up slack of the rocker and lifter even if it is hydraulic it still has a bit of slack.

this is why cam on bucket motors run just a bit better then rocker arm, and the not least but push rods which SUCK!

even worse then push rod is a flat head ford with valves built into the block... two stroke status.

They already agreed that the SR20 head sucks. You're fighting a losing battle.

[corbin]

I'd choose KA-T. Faster than SR in a straight line.

[jr_ss]

Originally Posted by S12 Drifter

and all that cancels it's self out BECAUSE the inline 6 is naturally a perfect balance. additional the 4 cylinder is the ROUGHEST running engine by nature. V8 and inline 6 are POSSIBLY the smoothest running engines by nature.

What's your point? I thought we were talking reliability/efficiency. I know an I6 is a naturally balanced and harmonic engine. It wont stop me from making more power than your RB20 with less boost and live harmoniously in 4cyl fury.

Originally Posted by S12 Drifter

a 1000hp v8 vs 1000hp 4 cylinder.

4 cylinder keeps up with v8 but AT WHAT COST?!?!? 1,000hp for a V8 IS NOT THE SAME 1,000hp for a 4 cylinder to COMPLETELY different power ranges the END RESULT is 1,000hp

the V8 is making a easy 125hp per cylinder while the 4 cylinder is making 250hp per cylinder, the 4 cylinder is doing 2 TIMES THE WORK! for the same result as a v8 doing LESS work making more power. in other words if the V8 had to push 250hp per cylinder it would be 2,000hp with the same work as your 4 cylinder.

Your V8 isn't more efficient. It took 4 extra cylinders to make the same power you made in a I4 engine. The I4 isn't working twice as hard, however it's cylinder stresses are increased.

That's still not efficiency no matter how you slice it... You're not going to get it, and it's ok.

Originally Posted by S12 Drifter

rocker arm is terrible you lose energy over a large area this is why the VG30DET, CA18DET, KA24DE, RB20/25/26, VK, VH, FJ, S20 are all cam on bucket the faster you get your motion to the lifter and to the bucket the faster you have a valve action, you may have a rocker but it takes energy and the metals flex slightly not much but they do in very small amounts, you need to take up slack of the rocker and lifter even if it is hydraulic it still has a bit of slack.

this is why cam on bucket motors run just a bit better then rocker arm, and the not least but push rods which SUCK!

even worse then push rod is a flat head ford with valves built into the block... two stroke status.

Tell that to the engineers at Nissan, Honda and anyone else that run a variable timing and lift head. Please read below...

Originally Posted by OrangeVirus1

They already agreed that the SR20 head sucks. You're fighting a losing battle.

Exactly... You can dry hump the motor you hardly know yet all you want. We all have our opinions and facts that we... er most of us back our conversations up with, so no matter how hard you try, you're not going to get anywhere.

[S12 Drifter]

Originally Posted by jr_ss

Your V8 isn't more efficient. It took 4 extra cylinders to make the same power you made in a I4 engine. The I4 isn't working twice as hard, however it's cylinder stresses are increased.

you wanna play LETS PLAY.

SR20 VS VK56

stock for stock 200 vs 317 hp

had a bigger turbo to your SR get 350hp add a twin turbo to the vk get almost 600hp instantly.

even the Ferrari F40 3.8l V8 in production form makes more power then a SR BECAUSE THE 4 EXTRA CYLINDER HELP WITH exhaust gasses and exhaust pressure, their not just dead weight you know. it did not take 4 extra cylinders thats the way the motor was made as a v8. not as a 4 cylinder with another 4 cylinder bolted on.

show me the most powerful SR you've seen and i will show you 6,000hp V8's make 6x what your SR can make BECAUSE LESS STRESS per cylinder = more efficient engine.

[S12 Drifter]

Originally Posted by jr_ss

Tell that to the engineers at Nissan, Honda and anyone else that run a variable timing and lift head. Please read below...

.

nissan runs variable timing control on the VG30DE/DETT rb25/26 and VK? maybe it was the VH? and they do not use rocker arms.

/discussion.

[jr_ss]

Timing control, not lift. Go back and reread my post.

So a 2l motor vs a 5.6l motor, one makes 220 the other 305. And you think the V8 is more efficient. Yeah, you know what you're talking about...

[wangan_cruiser]

This thread is fucking stupid to begin with. Seriously?? A 4 banger vs a 6 straighy 6? Go figure

[S12 Drifter]

Originally Posted by jr_ss

Timing control, not lift. Go back and reread my post.

So a 2l motor vs a 5.6l motor, one makes 220 the other 305. And you think the V8 is more efficient. Yeah, you know what you're talking about...

how much does a SR20DE make? 120? 130 AT THE CRANK? 90h at that wheels? 100 at the wheels?

okay then

[racepar1]

Holy fucking shit. JUST LET THIS DIE!

Now we're bringing v-8's into the mix as well. Yeah, let's compare an engine with close to 3x the displacement of the SR. At least when the RB20 was being compared it made some sense. Also we'll argue constantly about the efficiency of the engines. As if you know anything about engine efficiency or how to calculate/compare it. WTF is wrong with Zilvia lately???

EDIT: The N/A SR makes 120hp @ the crank let's say. The VK56 makes 305hp @ the crank let's say. The VK has 2.8x the displacement of the SR. 120x2.8=336...

[ultimateirving]

I want to play!

He(s12drifter) is using the term efficient incorrectly.
Is the V8 more efficient at handling load per cylinder?
Is it more efficient at making power?
You need to state the "what" that is more efficient.





l2p

[ILoveJDM]

Originally Posted by S12 Drifter

and all that cancels it's self out BECAUSE the inline 6 is naturally a perfect balance.

a 1000hp v8 vs 1000hp 4 cylinder.

4 cylinder keeps up with v8 but AT WHAT COST?!?!? 1,000hp for a V8 IS NOT THE SAME 1,000hp for a 4 cylinder to COMPLETELY different power ranges the END RESULT is 1,000hp

the V8 is making a easy 125hp per cylinder while the 4 cylinder is making 250hp per cylinder, the 4 cylinder is doing 2 TIMES THE WORK! for the same result as a v8 doing LESS work making more power. in other words if the V8 had to push 250hp per cylinder it would be 2,000hp with the same work as your 4 cylinder.

additional the 4 cylinder is the ROUGHEST running engine by nature. V8 and inline 6 are POSSIBLY the smoothest running engines by nature.

You should compare apples to apples here.

2.0L 4cyl vs 2.0L 6cyl

so compare a 2.0Lcyl vs a 2.0L v8 plz.

[Bmxer300zx]

S12dorifto is just Anti sr20, he's crying on someones build thread that's swapping a sr20det into a z32 talking about how much torque his vg30Et makes over ANY sr ever .... point is he wants big power and big torque with soo little money he should go buy a cumaro and do a 6.0 swap then he'll have the power of the pushrod gods at his toetips.

[S12 Drifter]

Originally Posted by bmxer300zx

s12dorifto is just anti sr20, he's crying on someones build thread that's swapping a sr20det into a z32 talking about how much torque his vg30et makes over any sr ever .... Point is he wants big power and big torque with soo little money he should go buy a cumaro and do a 6.0 swap then he'll have the power of the pushrod gods at his toetips.

your fucking right because the sr20 is a piece of shit nissan made it cheaply as something to stick in the s chassis!

I'm building my Z31 FOR TRACK not drag i could care less about drag, yea my VG makes power, I've snapped CV axles, I've broken transmissions and snapped more CV axles.

and guess what? The little RB20 i have will make more power then the VG30ET because 4 valves per cylinder dohc > 2 valves per cylinder SOHC

if you read what i post i'd know the VG30 ET is a good street engine and thats about it, RB is a more track inspired motor. the Z31's CAME with RB's anyway in the 200ZR models

[jr_ss]

Dude, get over yourself. No one cares about your opinion.

[S12 Drifter]

Originally Posted by jr_ss

Dude, get over yourself. No one cares about your opinion.

does not change the fact that the SR20 is a piece of garbage

[jr_ss]

Originally Posted by S12 Drifter

does not change the fact that the SR20 is a piece of garbage

Whatever helps you sleep at night. Have fun butt fucking your 2L RB.

[ILoveJDM]

when you type in big letters, its because you're on the ground being shit kicked by a circle of people and no one can hear you over the laughter.

[Bmxer300zx]

In all honesty your a tool. Just cause you dont like the sr20 doesnt make them horrible, there's sr20's running low 7/ high 6 quarter mile times. You argueing your outdated vg30et that makes less hp stock as a s14 sr20 makes no sense. How bout the s15 sr? Thats more hp (250hp) than your v6eT and 220tq (7ftlbs less)
In stock form sr20/rb20 i have driven both in my car and theres not that much of a difference but a couple hundred rpms of lag With the rb and stayed neck and neck racing sr20 240's . If engine size is your arguement of why its good why are you messing with anything other than a v8 to begin with?

[feito]

wtf is this v8 talk now? Why is there bold big letters in this page? What's happening to silvia? I love my reliable as hell stock rb25, sounds like god's singing too!

[korito727]

Oh we're tossing in other engines now..? My 1jz sc300 hangs on the door of my friends t28 sr....... Before I hit boost that is ))

But in reality this is way off topic and stupid now. There pos and neg to each engine.

[hobbs]

Originally Posted by S12 Drifter

if you read what i post i'd know the VG30 ET is a good street engine and thats about it, RB is a more track inspired motor. the Z31's CAME with RB's anyway in the 200ZR models

First off, no one here cares about your heap of shit Z31 or the garbage that they call the VG motor.

Second, RB is a track inspired motor? Skyline in japan is nothing more than a generic grocery getter, it's the japanese crown victoria. They were heavy, slow and boaty cars that needed turbo chargers to get anywhere, nothing was sporty about the GTS-Ts. The only exception was the RB26/GTR for obvious reasons. Atleast the 180sx/200sx was made and marketed as a sports coupe, light and nimble with one of the best inline 4 motors made.

RB20/RB25 track inspired motors, what a joke!

[OneSicSilvia]

Your a dumb ass. The SR is def one of the better 4 cyls made lol...even to date. Comparing a RB20 to an SR is very generic. Both are good motors. But no matter how you cut the fucking pie, To make power, both need to be upgraded. the SR is generally easier to aquire parts for, and cheaper. I've had many SR's and revved the everlasting shit out of them. Never had a issue with the rocker arms lol. What are your goals?! The fact that your comparing V8's to 4 cyls automatically makes your attempt to validate a point null and void. Again. I fucking hate when people say that shit "a 1000hp v8 vs 1000hp 4 cylinder" *Beep Beep Beep* Asshole alert!. Chances youll ever see 1000hp out of any motor you will own? FUCK ALL. Because the percentage of people who actually own motors that fast is shit!. Even 500hp range % is fairly low in comparison. So wtf is your point?. You have a pipe dream. Congratulations`. You and everyone else. SR is a popular swap, thats about the only shit thing it has going for it, aside form the downside of it being so popular that its expensive to buy a motor set. So quit your worthless blabber, when your clearly dont know dick about wtf your even gibbering about. The SR is fine, Your attitude about it is that of a handicapped moron.

[S12 Drifter]

The fj is possibly the best 4 cylinder nissan made fj/ka/ca/qr sr. In that order.

Sent from my SPH-M920 using Tapatalk 2

[OneSicSilvia]

Yes Clearly the FJ was the best 4 they made...hence it's long and prosperous heritage rofl... And since you were so dire straits about literage Shouldnt the QR be the top dog despite it being a turd?. Followed by the KA.

[S12 Drifter]

Originally Posted by OneSicSilvia

Yes Clearly the FJ was the best 4 they made...hence it's long and prosperous heritage rofl... And since you were so dire straits about literage Shouldnt the QR be the top dog despite it being a turd?. Followed by the KA.

Before you insult me LEARN to spell and use proper grammar half this site has less grammar then a 4th grade English class.

Yes, clearly the FJ was the best 4 cylinder they made, hence it's long and prosperous heritage rofl...

What the fuck is that? literage? I've never heard that word and my firefox can't find a sub for it either.

shouldnt is spelled in shouldn't,

the FJ is a way better engine then the SR. but it's alright, your ignorant about other engines I'll just let you be with your trailer trash SR. Just by your spelling pffttt, nah I'm done I don't want to go to hell for making fun of retards.

[OneSicSilvia]

Youve never heard of literage being used before?. You must not get out much. Thats ok, I'll stick with my trash SR lol, chances are it is, and will be faster then anything youll have anytime soon lol. Fucking basement nerd getting all strung out over grammar on the interwebs lol. Thats how you know your winning an argument, when someone points out your typo's lol.