240sx- sr20 vs rb25

[Buffalo Sabres]

I did a brief search on the web and cannot find an answer to the question. I would prefer not to register to a Nissan forum either so I figured I would try my luck here. Does anyone know what the two motors can handle to the wheels on stock internals and still be reliable? Reliable as in last for several years and atleast 100k miles.

[ImAuthenticFTW]

can i ask why those 2 motors? why not an RB20 instead of the SR20?

[04lxCivic]

Honestly, I would just save and find a rb26 dett.. but thats just me..

[bluegreen86]

SR will push around 350 with boltons and tuning (including a serious turbo). RB will push more, in a safer manner. Gotta pay to play, so it really depends on your budget.

[Firestrife]

well it depends on what condition you get it in also. RB25 can be fairly reliable it has power and you dont have to crank the boost up like a mad man.
SR20DET's can handle pretty good boost but you can only make so much on a stock block.
You should definitely still check out those nissan forums though.

[Buffalo Sabres]

Originally Posted by ImAuthenticFTW

can i ask why those 2 motors? why not an RB20 instead of the SR20?

Well, I will be buying it with a motor already swapped. I guess I should have asked about the limits of the rb20 too.

Originally Posted by 04lxCivic

Honestly, I would just save and find a rb26 dett.. but thats just me..

Not too many rb26 240s around where I live. But after I buy the car I'm gonna save up and build a rb26. Or so thats what I'm planning.

[mitsukaiSI]

well the RB has a cast iron block and is near bullet proof BUT still is not very reliable, especially when swapped into a 240, i have lots of friends with RB swapped 240's and they are CONSTANTLY having problems and having to dump hella money into them just to keep em running BUT they have alot of fun with the cars so its up to you, they make anywhere form 400 whp up to a few that are running 1200 whp (not on stock bottom end)

sr20 is easier swap and more reliable from what ive seen BUT its an aluminum block so if you wanna run crazy boost levels it would be worth building the bottom end

a lesser known swap is the ca18det (s13 sylvia) its a 4 cyl version of the RB, its a cast iron block much like the RB and is actually the pre-cursor to the RB. i have heard that the CA18 has the best of both worlds, with the exception of being a 1.8 ltr, which isnt as big of a deal if its going to be fully built. . .

as much as you dont want to register on a nissan forum, i would recommend it as buying an engine swap is a large investment and id hate for you to spend thousands of dollars on a nissan swap, and countless hours working bugs out to do a swap that was recommended to you on a HONDA forum and then you end up regretting it later. . .

do your research

[Firestrife]

RB20's have a lot of issue from what I hear. Also Rb25 is just as a good and much cheaper than an RB26

[ImAuthenticFTW]

Originally Posted by Firestrife

RB20's have a lot of issue from what I hear. Also Rb25 is just as a good and much cheaper than an RB26

i personally know a few people with RB20 swapped 240. none have had issues at all..... as long as the swap is done right you should be good to go.

motor swaps within my circle of friends are pretty common.
hell seeing a 1JZ in a R32 Skyline isnt shocking to me anymore.

[Buffalo Sabres]

Originally Posted by mitsukaiSI

as much as you dont want to register on a nissan forum, i would recommend it as buying an engine swap is a large investment and id hate for you to spend thousands of dollars on a nissan swap, and countless hours working bugs out to do a swap that was recommended to you on a HONDA forum and then you end up regretting it later. . .

do your research

Thanks for the reply. As the time gets closer, I will definitely join the forum and do some heavy research. I'm still a ways off from buying one and just wanted to get my feet wet.

[mitsukaiSI]

Originally Posted by ImAuthenticFTW

i personally know a few people with RB20 swapped 240. none have had issues at all..... as long as the swap is done right you should be good to go.

motor swaps within my circle of friends are pretty common.
hell seeing a 1JZ in a R32 Skyline isnt shocking to me anymore.

i run in a similar circle haha, most of my RB swapped friends eventually unload their trouble cars because the tire of the problems, several where swapped at well known shops in so. fla. (i dunno what shops they had it done at though, they had it done before moving to oklahoma where they reside now)

[Firestrife]

If domestics are not a problem LS1 swaps are quite nice.

[mitsukaiSI]

Originally Posted by Buffalo Sabres

Thanks for the reply. As the time gets closer, I will definitely join the forum and do some heavy research. I'm still a ways off from buying one and just wanted to get my feet wet.

honestly i would probably recommend shying away from an already swapped car, more likely than not your buying someone elses problem/ money pit. . . and buying a car like that you KNOW its been dogged so it might be a wiser investment to pick up a salvaged 240 shell in decent shape and swap/build the car as an on going project

[mitsukaiSI]

Originally Posted by Firestrife

If domestics are not a problem LS1 swaps are quite nice.

go big or go home, spring for an LSX, apparently they can handle 1200 hp on a stock lsx block from what i hear haha

[ImAuthenticFTW]

Originally Posted by mitsukaiSI

honestly i would probably recommend shying away from an already swapped car, more likely than not your buying someone elses problem/ money pit. . . and buying a car like that you KNOW its been dogged so it might be a wiser investment to pick up a salvaged 240 shell in decent shape and swap/build the car as an on going project

if you can find a decent roller shell and go from there you'll probably be better off

[Buffalo Sabres]

Originally Posted by mitsukaiSI

honestly i would probably recommend shying away from an already swapped car, more likely than not your buying someone elses problem/ money pit. . . and buying a car like that you KNOW its been dogged so it might be a wiser investment to pick up a salvaged 240 shell in decent shape and swap/build the car as an on going project

In all honesty, I would prefer to do that. But I have to sell the Si in order to get the money. So i figured I would sell the Si and buy a decent 240 with a motor swap already. Then since I wouldn't have a car payment I would start saving up to build an rb26 and then put that in after I finished building it.

[mitsukaiSI]

Originally Posted by ImAuthenticFTW

if you can find a decent roller shell and go from there you'll probably be better off

a buddy of mine picked up a pristine and BONE stock 95 240 an had it for ONE week before it got stolen, i TRIED AND TRIED to convince him to buy it back from the insurance company and build it but he didnt want to mess with it. . . im sure you could go to some public auctions and pick up a pretty cheap decent condition project car

[greg porter]

Just build a ka24 turbo

[artyfartsyFA5]

Ka build.

[Chadillac]

I had an SR20DET and was pushing around 290whp. Engine had over 252K miles and ran perfect. I'd say they're very reliable.