Which swap best suites my needs?

[EJ22t]

I have run into a complication, I currently have a stock 95 240sx se which is going to be the recipient of of a motor swap

my problem is Im not sure which one I really want to go with. I currently have a 95 240sx se that I drove for 6 months then I got hit in the rear quarter panel, its equpied with a S14 notch top + all the extras

I had planed on just sawaping out the sr20 into my current vehicle but I keep waffleing about it, its like if Im going to take the time to pull my ka24 pull the sr20 drop in the sr20 is this really the motor I want?with my power goals ultimately being in the 500+whp range?

then my wheels started to turn and I have brought a whole new element into the discussion, what about a 2jzgte swap?

yes I know theres a bit more work instead of drop right in sr20 but I roughly figure in the end the costs to be about the same, with the sr20 having to be built to withstand 500+whp its rated around what 400 on stock internals? and the 2jz holding in the upwards of 700whp on stock forged internals. so cost of building the internals ect to meet my power goals to extras to drop in the 2jz to be as I said roughly the same in cost. (this of course takin into account me selling the sr20 deducting it from the 2jz cost, as far a figures go)

heres where my concerns lie, I need some testimonials and help on what I should do.

the sr20 will be fairly easy to just drop right in and I have all the stuff I need to make it work but I will have to pull it out of the donor car (= more hassle) and buy forged internals

on the other hand I can get the 2jz and after some piston rings, bearings seals, gaskets and a compression check its good to go (aside from the mount brackets, cross member ect ect) my only issue I could see from this is how reliable is this? is this something that will run great if done correctly or is it one of those this motor was just not designed for this car type of deals that I will always be running into problems with, run this months bad the next fix it it starts messing up shortly after

Modified by EJ22t at 9:45 AM 2/13/2010

Modified by EJ22t at 9:46 AM 2/13/2010
Modified by EJ22t at 9:47 AM 2/13/2010

[sx moneypit]

I say go with the SR20.I am not a really big fan of hybrids.Every time i see a Toyota engine in a Nissan i always think of an idiot i know that put a 350 Chevy in a 69 Mustang.Keep it all Nissan!

[djidentity]

I personally like the KA and I wouldnt trade it for anything. You can get more then 500hp out of a KA... lot of work, hell, and tweekin but it can be done. And you dont have to go through the hell of a complete swap.

That is just my opinion. Most people dont see the potential of the KA, Ive seen em over 1000whp.
Modified by djidentity at 4:35 AM 2/14/2010

[EJ22t]

I dont believe I would do the KA just becase of having to either buy a built head or build it yourself for it to flow enough, and that on top of the forged internals in the block I would be looking at a good amount of cash to get the desired hp

[sjbsuperman1425]

seems like you are in the "high HP dream stage" right now. what are your plans for the car. 500+whp is a goal, but what would it be used for?

[SteveRB240sx]

I would never buy a sr20, although i am all for keeping it all nissan, i would rather get a 2jz than a sr20, you have a lot more to work with and can easily reach high power ranges. Just changing the turbo can show gains of 500whp on stock block. But then again Im also a big fan of the KA series of engines.

Just wondering why not go with an RB?

[sjbsuperman1425]

because RB's are weaksauce. nah i kid.

i vote for RB swap over 2JZ swap.

[sx moneypit]

RB

[SteveRB240sx]

You might want to look into it, you don't have to go crazy to get good power from an rb and u don't necessarly need a 26. Although I wouldent recommend a rb20 for those power lvls, but an rb25 would do just fine! And parts are just as expensive as a sr20 or 2jz, well at least in a similar price range

[EJ22t]

well ya know Im right there with you guys with keeping it all nissan but what concerns me is Im going to have all the same mounting an conversion issues that I would have with the 2jz only difference is an rb26 is 3 grand plus however much a rb25 transmission is (doubt its cheap) and a 2jz is 1,500

not to mention there seems to be alot more aftermarket parts out there for the 2jz and if something breaks I can go right down to the local toyota dealership to replace it with the RB I what either pay premium on some web sight or source out somewhere in japan that has them and still pay mucho denaro

I know I sound like Im against the idea just in general but that couldnt be any further from the truth I myself would much rather have the RB then the 2jz and keep it all nissan but the cost and replacement factor weighs in just too much, if it was a case where it would be just a 1,000 more or something I would do it but it seems like it would be alot more then that and thats if the swap motor is in perfect condition
Modified by EJ22t at 7:54 AM 2/16/2010

[sjbsuperman1425]

here is what i dont understand..why ask for opinions if you've already made up your mind?

[EJ22t]

my mind of a 2JZ over an RB was made up along time ago, the debate was about the 2JZ and a SR20

[DizzyKitty]

go v8 brah... ls1 or vh45de....

[EJ22t]

ughhh... *shakes head*

[triple r]

..........your kidding :sighs:

[DizzyKitty]

ughhh... *shakes head*

.... y?

[compactfean]

Id say go sr20. You already have the donor motor. The sr already has a forged crank. For the 1500 your gonna spend on the 2jz spend it on rods pistons cams, solid lifters. And you gotta upgrade turbo on either motor so that doesn't really matter. 2jz partS are more expensive! I know this for sure because my friend has a supra and has spent a rediculious amount on parts.

[s13lover1]

I would personally say keep it nissan and get a VH if you ever wanted to change your mind on engine choices that is.

[EJ22t]

yeah I would really like to do the 2JZ I cant lie but I just really dont want another headache or a money pit, my 2.5rs already fills that spot lol

and on the flip side thats what makes me want to keep the sr20 it runs and drives like a stock car and I dont think I would have any problems with it really but geez the 2JZ is just so efficent Im really tore

the other thing is a whole liter more of displacement sure would help with spool on a large hampster wheel pumping out 500+whp

[compactfean]

well if money and headaches aren't an issue, go 2jz. Either way it gonna be some work. Sr has less headaches for sure. Not to mention wiring is simple on the sr.

[mdm89]

i was lookin at an sr20 or the rb25. to build the top end on the sr was a bout 3k plus cost of motor using pretty good parts. that would put me at about 300-350whp, some where in that area. rb25 stock will put 300whp + . with a new intake manifold you would be in the same area. for about a grand less.

[Justinians_2:40]

I would say you can't really compare the two. I'm with sjbsuperman1425, what are you planning to use the car for. The 2JZ is gonna throw off the balance of the car pretty bad, not necessarily because of the weight, but also because of the length of the engine, it will be hard to push it back far enough for a good balance. Now if you're looking for a straight line car, that's not really a problem, but if you want a road track car or even a well handling street car, I don't think you'd be happy.

As far as the SR20 is concerned, yes you can get 500 hp out of it, but it won't be reliable, no matter how much money you put into it.

If you really want that kind of power, an LS swap is really the way to go, not only can it handle that kind of power well, but it's a V engine meaning it will be easier to mount further back for good balance, and parts are easy to come by.

But, if you really want to keep it between those two choices (2JZ or SR20), I would say go with an SR20 around 350-400 hp. That should make for a fun, well balanced, and fairly reliable car. It's less power than you initially wanted, but you've got to look at the big picture, less power, but also less weight, and the car will be balanced, meaning overall, it should be just as fast if not faster than a 500 hp 2JZ. Also, running a 350-400 hp SR20 should be a lot cheaper than running a 500 hp 2JZ, I think, as with any hybrid swap, there are going to be a lot more problems than you expect.

But, then again, that's just my $.02, take it for what it's worth to ya, and good luck with whichever you choose.