To be RB or not to Rb?

[slidestyle69]

I need some advice from anybody that has a sr and went rb.

I have had a sr in my old s14 and now i have a new s14 and im preparing for a swap. I feel comfortable doing a sr swap or even ka-t.They are both crossing my mind, mainly bc i know how to work on em, but i am just itching to get into a rb25. The only thing is i dont know anything about the rb's. I do all the work to my cars, how hard is the rb25 to work on. i know the limitation of space in the engine bay is one but what are common problems with them. Is it worth it to go rb instead of going back sr and would i be disapointed with all the money i spent doing the swap? somebody give some input here plz

[Romeo_rus]

RB kicks asses!!! get it!

[dsm007]

Get an RB25 "NEO" engine,has rb26 rods,its newer,doesnt have the ring land issues,only cost's a couple hundred more than than an rb25 series 1 or 2,cost's no more to swap it,it has solid lifters and better quench area in the head to help avoid detonation...oh and its low emmisions and better on gass too lol.

[Cjmartz2k]

Get an RB25 "NEO" engine,has rb26 rods,its newer,doesnt have the ring land issues,only cost's a couple hundred more than than an rb25 series 1 or 2,cost's no more to swap it,it has solid lifters and better quench area in the head to help avoid detonation...oh and its low emmisions and better on gass too lol.

O and it's costs more, parts are harder to find, and if your not going to take advantage of the benefits of a Neo by making more hp and revving it higher, it's not going to matter. I'm not bashing Neo's, I'm just saying they aren't automatically the best option for everyone.

[Nesquick]

RB26 or go home.

that is all.....

[Joe]

RB26 or go home.

that is all.....

LS1 > RB26 on EVERY LEVEL.

get over the RB26 its not god's gift to engines.

[Cjmartz2k]

LS1 > RB26 on EVERY LEVEL.

get over the RB26 its not god's gift to engines.

[maryjane]

LS1 > RB26 on EVERY LEVEL.

get over the RB26 its not god's gift to engines.

damm joe?!?!

haha, i will have to saw, being able to walk into a auto parts store and buy parts for the V8 must be nice

sorta sux waiting a week for parts for the rb but they sound a rev so nice

[Shocker]

LS1 > RB26 on EVERY LEVEL.

get over the RB26 its not god's gift to engines.

I can agree somewhat with this statement. I almost just did this same thing. Its honestly the sound and scream of the RB that keeps me around. Its just so f***ing wicked and different, sets you apart from the rest.

[240cp]

Quote, originally posted by Joe »

LS1 > RB26 on EVERY LEVEL. get over the RB26 its not god's gift to engines.

Neither is the ls1. Im not going debate whether or not the ls1 or the rbxx is better than another. But this is the rb forum. Not the hybrids. Seems like all you hear nowadays is swap in a ls1. I work on these engines daily and believe me i love them. They are great engines but the guy asked about a rb not a ls1

[Joe]

i didnt intend to start a war with that comment, i know the LS isnt gods gift to motors either but im tired of the fanboyism that surrounds the RB. someone who jumps in and says "get the 26 or go home" needs a foot in their a** to wake them up.

[mattblancarte]

I'm with Joe and cjmartz2k. I seriously cannot understand why someone would choose the rb26 over the ls1, for any application. The LS1 is lighter, more reliable, easier to work on, better power band, blah blah blah blah.

The RB26 is the bane of my lap times.

To answer the OP's question: Not to be RB.

[GTRs13]

For me, and a lot of others, nothing beats the sound of a tuned inline 6, Nothing. Get an RB, you will love it.

If you want to go LS1, you should have bought a Camaro/Corvette.

[Joe]

For me, and a lot of others, nothing beats the sound of a tuned inline 6, Nothing. Get an RB, you will love it.

If you want to go LS1, you should have bought a Camaro/Corvette.

the camaro is a POS car that can barely handle and weighs 2 tons. the vette is super overpriced and all the aftermarket chassis parts are 3x what a normal part would cost because its a corvette.

that is the worst argument ever.

[neonbomb]

O and it's costs more, parts are harder to find, and if your not going to take advantage of the benefits of a Neo by making more hp and revving it higher, it's not going to matter. I'm not bashing Neo's, I'm just saying they aren't automatically the best option for everyone.

Agreed 100%

[slidestyle69]

I have heard that the neo was a better version of the 25, but i do plan on upgrading in the head and turbo so that will prolly be the one i will go with. unless like Cjmartz2k said about the parts being really hard to find. Ive been searching around and the sound of the rb's are jus awesome, man i get off to it. Has anybody heard of vibration in the crank at certain RPM that causes bearings to spin on the rb25?

[GTRs13]

Comparing apples to apples is a strong technique in arguing.

Saying that a LS1 camaro "handles like crap" is an opinion. They are near 50/50 in factory trim.

Guess what else handles like crap? A 20 year old stock 240sx.

They both can generate 1.0g on the skidpad with their respective aftermarket suspension/tire support.

Not everyone wants to drift anyways.

The vibration issue of the RB is based on its long crank and 7 main bearings.

If you take an old RB and rev it to the moon without fortifying the internals, yes they can break the oil pump gears and you are dead in the water.

Just treat it like the rare beauty it is, and take it easy until you can build it up. Then rev it to the moon!

Still, nothing beats the noises they make. Good enough reason to get one.

[matafied]

Never have regretted any rb25 swap ive ever done, loved every single one of them. Drove my first one as a daily for 6 1/2 years, sold it, and the guy who bought it drove it 13 hours straight to Chicago.

Just do your research and figure out what you want, for your money.

[s14_sport]

And has everyone forgotten about TURBO???

I'm a 100% certified BOOST JUNKIE.

sure you can get high horsepower out of an LS1 with minimal mods.

But, nothing is more fun then boost. Period.

[rb25det250sx]

^^^ agreed! i mean dont get me wrong my rb25 is basically stock and would take out most stock so slightly modded ls1s' i've seen. and believe me there is ALOT in Iowa. Boost is the best thing ever invented in my mind i would kiss the guy who thought out it! but i also have a chevelle wit a 406 and i love every second im in the thing.

BUT the guy asked about a Rb Vs. Sr or Ka-t. Get the Rb you'll never regret it!!

[silviasgp06]

rb25det250sx: its easy to beat an stockish LS1 in one of its heavy a** doner cars. SR's do it all day long too. Put a stock LS1 in a 240 and your likely screwed.

SlideStyle69:but anyways its all depends on what you want to do.-IMO LS1 is to costly to drift, having to do dry sump and all, but once you do that, your set.

so like someone said, It all depends on what you want to do with the car, along with how much you want to spend.

but SlideStyle, I was in your spot a little more than year ago. I know a good deal about the KA(T), SR and RB and was going back and forth all the time while i was saving for a swap. What sold me on what motor to get was seriously the sound. And ive been loving my S2 RB25 ever since, (and my power FC is not even tuned yet, Holset turbo and supporting mods not bolted on and its still a blast to drive, I only have good to look forward to)

[Joe]

Comparing apples to apples is a strong technique in arguing.

Saying that a LS1 camaro "handles like crap" is an opinion. They are near 50/50 in factory trim.

Guess what else handles like crap? A 20 year old stock 240sx.

They both can generate 1.0g on the skidpad with their respective aftermarket suspension/tire support.

Not everyone wants to drift anyways.

The vibration issue of the RB is based on its long crank and 7 main bearings.

If you take an old RB and rev it to the moon without fortifying the internals, yes they can break the oil pump gears and you are dead in the water.

Just treat it like the rare beauty it is, and take it easy until you can build it up. Then rev it to the moon!

Still, nothing beats the noises they make. Good enough reason to get one.

who said anything about drifting?

ive driven fbodies in race prepared trim and they have s***ty feel, response and feedback. s chassis are far more nimble and responsive and it can be achieved for far less money.

they are also FAR easier to work on. ever seen under the hood of a fbody? yea f*** that nonsense. rear cylinders are under the damn windshield.

I love turbo cars, they are fun. s*** i drifted a big turbo car for the first time in a couple years last week and i had forgotten what a blast it is, but its not the same. ground shattering torque in a sub 2500lb car is something that cant be described till its experienced.

[slidestyle69]

well i think LS1 swaps are very neat and awesome but im a hardcore nissan fanboy and when it comes to swapping the motor in my car, i want a nissan motor.Im saving now, it will be several months till whatever i decide on is dropped in but hearing advice helps decide on what my final decision will be.

silviasgp06, like u said about the sound of a rb was enough to convince you, i feel you00% it is nice and stupid wicked how they sound in the upper rpm's. I do plan on revving whatever i get pretty high so Based on what ive researched about the neo, maybe i should go with it.

One more question whats the deal with the subframe swap out. What does this do for someone with a rb swap? I couldnt find anything about swapping this out on mckinney motorsports site.

[craz4240]

well i think LS1 swaps are very neat and awesome but im a hardcore nissan fanboy and when it comes to swapping the motor in my car, i want a nissan motor.Im saving now, it will be several months till whatever i decide on is dropped in but hearing advice helps decide on what my final decision will be.

silviasgp06, like u said about the sound of a rb was enough to convince you, i feel you00% it is nice and stupid wicked how they sound in the upper rpm's. I do plan on revving whatever i get pretty high so Based on what ive researched about the neo, maybe i should go with it.

One more question whats the deal with the subframe swap out. What does this do for someone with a rb swap? I couldnt find anything about swapping this out on mckinney motorsports site.

Swapping out the subframe for a skyline one is the easiest most stock way to mount an rb in an s-chassis.

[slidestyle69]

so im assuming with the sub swap you use stock skyline mounts or do u still use the mckinney's or top hat, preferebly mckinney lol. but is the subframe a direct swap? i havent found where anybody has said it wasnt but im jus curious

[gdubsmsp]

RBs are a nice setup, it's what i have now, but a major pain to find detailed information on because most of its in japanese. You can get the basic diagrams and stuff but the ecu in a 25 is pretty worthless for tuning. Definately plan on a stand alone or a flashed 20 ecu. If i could do it all over again i would have stuck a 2jz in my s14! Parts from auto stores, bullet proof bottom end (yeah i have new rods and pistons because of nissan underengineering), and way more support in the aftermarket!

That's just my 2 cents...

[Fibre guy]

Ls1 and RB argument again. ***Cue epic music***Anyone considered electric? The Tesla motor is doing pretty good. It'd be funny to see a completely silent 240 going sideways.