differences betwen RB25 and SR20

Website · Post by **96stillen_max** » Mon Jan 31, 2005 4:32 pm

what are the pros/cons for the RB25 and the S14 SR20 for when swapping into an S14? which one is more expensive? which is more reliable? for thoes with SR20s, why did you choose the SR and for thoes with the RB25, same question.

I am looking into getting an S14 to replace my maxima. originally I was set on an SR20, and i know a little bit about it, but I know nothing about the RB25.

Post by **BlackFlag_s13** » Mon Jan 31, 2005 4:45 pm

hehe i get to be the first to tell him to search....Its in the top right corner...Rb i think is more $ cuz you need motor mounts and a new driveshaft or somethingAnd it costs more anyway 2500 vs 2k

Post by **ILikeMy240sx** » Mon Jan 31, 2005 4:46 pm

I think this topic has been beaten to death...

but.. obviously RB25 will cost more thatn SR20. As for reliability they are both reliable but SR20 does have less parts that can go wrong.

Why people choose Sr20 and not RB25? heck, if everyone had the money/time then they would all get the RB25. People choose SR20 because its relatively easier and costs less and some things in KA are interchangeable with SR.

next time maybe search will answer your question....

Website · Post by **96stillen_max** » Mon Jan 31, 2005 4:48 pm

sorry, i didnt even think to search. i come from maxima.org where the search is disabled, so im not use to it. i just read all the stickies and couldnt find anything. thanks.

Post by **NoDrifto** » Mon Jan 31, 2005 5:11 pm

lookin at the 4th gen max and the s14 on one screen....the S14 looks like the coupe version of the 4th gen max.....muahahahahahahah

goood.....goood~

Website · Post by **96stillen_max** » Mon Jan 31, 2005 5:15 pm

hehe, thats why i want an s14. i love my maxima, but its just too damn slow, and fwd

Post by **Juujai** » Mon Jan 31, 2005 6:57 pm

rb25det is not exactly more expensive, harder to install and theres lots of support for it.

people choose sr before because it was cheaper a couple years back we got clips for like 1500 now its up to 2500-2800 for a redtop clip and the condition of them are getting worse and worse. now they just choose it because it is a lighter motor capable of generating sufficient power and still being some what reliable. another reason would be nissan of japan put that motor originally in the 180sx/silvia so yeah overhere we're just converting to jdm. people around here have more experience with the sr over the rb usually.

rb pros more unique or not played out as hard and its decently priced for a 6 cylinder. bad is its from the gts.. in otherwords its the the low end.. its not as wild as the 26. you can even compare it most built gts only crank average 500-600hp vs the 26s generating 800+ some even hitting 1k+. i personally have driven one and it does not suit my taste i prefer the sr but its your choice.

srs are now unaffordable =/ maybe we should look into ca18. thats a beautiful motor even lighter than the SR although it cant generate 350-400 as easily it can still crank about 275-350 thats pretty much good enough.

to me its all about weigh-power-price ratio lol. all motors usually have lots of support only new cars have no support like the new civics and stuff theres never support.

Post by **ILikeMy240sx** » Mon Jan 31, 2005 7:05 pm

I cant agree with you more on the Ca18 issue. I think sooner or later there will be more people going to that route.

If I had an opp. to obtain a Ca18 easily for a cheap price Id prob drop that in.

i think in the end if you are swapping a RB25 it would cost more because of time and extra fabrictaion you have to do.

Post by **RC240** » Mon Jan 31, 2005 7:17 pm

i agree with everyone

Post by **BlackFlag_s13** » Mon Jan 31, 2005 7:34 pm

i thought about the ca but i looked about the support of it in the us market and thought it was relativly lo, but feel free to prove me wrong. also did they ever make a bigger displacment ca like a ca22 or something

Post by **ILikeMy240sx** » Mon Jan 31, 2005 7:39 pm

hmm I dont think so but to make sure I went to this site http://www.freshalloy.com/site...shtml but no sign of CAs anywhere...

Website · Post by **96stillen_max** » Mon Jan 31, 2005 8:14 pm

ive spent the last hour readding up more about them here and over at 240forums.com. correct me if im wrong, but from what ive read, the rb25s go for arround the same price as an s14 sr20, maybe a little more, but for the added price you get 250hp over 220 and 6 cylinders with a great sound. oh ya, and the added weight can make the car more tail happy, which i can live with. im mostly looking for great power.

when i get my 240, (its no longer a question of if) ill only be looking to getting around 320rwhp and it will have to be my daily driver. im only 20 and cant afford 2 cars, nor would i want to try. as long as they are maintained well, can these engines run well in a daily driver?

Post by **ILikeMy240sx** » Mon Jan 31, 2005 8:19 pm

ehhh i dont know how adding more weight in the front will make you tail happy......... but yea..... it will actually cause you to understeer.

If you get a RB25 it would be great but you will spend lots of time fabricating things and cutting things to make it fit. There will be alot of downtime so if its your daily you can either go SR or KA-T. it will be alot easier and less down time. And both of those engines are very capable of producing 300+ HP given that you tune it properly...

you dont need the fancy rb25 or rb26 to make lots of power.

Website · Post by **96stillen_max** » Mon Jan 31, 2005 8:38 pm

i must have read the thread wrong. i thought i read that the added weight causes more overstear, dont know why i thought that.

i know i dont need the rb25 to get the power, but i want it, thats all i can say. i love the sound and i love that its an I-6. as for down time, i have a car that i can use if i have to. fabrication, cutting and welding is also not a problem. my father is a general contractor, ive got access to mig/tig and arc welders, along with a plasma cutter and full on machine/metal working shop.

i still havent totally put the idea of an sr20 out of my mind, but 4 hours ago i didnt know a thing about the RB series, now i cant stop thinking about it.

also, arent the RB25s generally newer than most sr20s? or is that just something else i read that isnt true?

Post by **Nismo_Freak** » Mon Jan 31, 2005 8:39 pm

96stillen_max wrote:ive spent the last hour readding up more about them here and over at 240forums.com. correct me if im wrong, but from what ive read, the rb25s go for arround the same price as an s14 sr20, maybe a little more, but for the added price you get 250hp over 220 and 6 cylinders with a great sound. oh ya, and the added weight can make the car more tail happy, which i can live with. im mostly looking for great power.

when i get my 240, (its no longer a question of if) ill only be looking to getting around 320rwhp and it will have to be my daily driver. im only 20 and cant afford 2 cars, nor would i want to try. as long as they are maintained well, can these engines run well in a daily driver?

S14 + S13 SR20DET + S15 Turbo + 555's = 300rwhp w/ quick spool

Post by **bcar240** » Mon Jan 31, 2005 9:38 pm

There is more and more support for RBs all the time. There are kits you can buy to allow you to get it in the car much easier (crossmembers and driveshaft.) But even thought the engine itself might cost about the same as an SR, you will immediatly have to go out and spend about $1500 on parts to make it fit, unless you do it all custom on your own.

Post by **Juujai** » Tue Feb 01, 2005 11:41 am

come on rich guy ca18det with a 2.0 litre bore they discontinued that but u can still get a hold of it and probably use some aftermarket sr pistons lol. lighter engine and similar output to the sr + unique. well what SR aftermarket support do we have? k&N sihet? aem? lol its mostly japanese stuff. if u got the money u can find parts for anything even hotrodders find 1950-60parts easily

Post by **eh?** » Wed Feb 02, 2005 3:14 pm

1)Budget=KA-T2) AutoX, drift, road racing= SR3)Budget Drag= RB254)All out= RB26

The RB25 is proven taking 500-600 rwhp with stock bottom ends. Aside from that the RB25/RB26 has a much stronger transmission than the SR/KA/RB20.. I think most fail to realize that as an advantage.

Post by **Chingon** » Wed Feb 02, 2005 3:42 pm

eh? wrote:1)Budget=KA-T2) AutoX, drift, road racing= SR3)Budget Drag= RB254)All out= RB26

autox, drift, road race I prefer the CA over the SRrb26 All out....as in dyno queen or drag race, but I can't see it being succesful in the rest...

Website · Post by **96stillen_max** » Wed Feb 02, 2005 5:17 pm

thanks for all the info guys. ive decided to go with an RB25. modding the maxima is done, i dont even know if im going to put in the coilovers if everything goes as planned, ill have an RB25 powered s14 by the end of the summer. thanks again.

Post by **Nismo_Freak** » Thu Feb 03, 2005 3:20 am

Chingon wrote:autox, drift, road race I prefer the CA over the SRrb26 All out....as in dyno queen or drag race, but I can't see it being succesful in the rest...

The SR is a better motor for road racing. Drive both and you'll soon understand why.

Post by **GEO** » Thu Feb 03, 2005 6:09 am

What about the KA's torque when road racing..

Post by **Stev0n** » Thu Feb 03, 2005 11:21 am

Chingon wrote:
autox, drift, road race I prefer the CA over the SRrb26 All out....as in dyno queen or drag race, but I can't see it being succesful in the rest...

Nismo_Freak wrote:
The SR is a better motor for road racing. Drive both and you'll soon understand why.

I have actually driven all 3, and I have to go with Chingon on this one. I have a CA, a guy helping me w/ my 240 has an SR in his frist gen coupe, and a friend of mine put an RB25 in his hatch about 6 months ago.

Stock to Stock to Stock - Hands down the RB hatch is a lot faster. But my CA hatch has better response and handling than the SR or the RB (and the SR has a lot of suspension ****, where mine just has STB's).

differences betwen RB25 and SR20

differences betwen RB25 and SR20

Re: differences betwen RB25 and SR20 (96stillen_max)

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Re: (ILikeMy240sx)

Re: (96stillen_max)

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