SoCalSilvia

hey guys, first off, if this is supposed to be in Tech, forgive me and mods please move.

Now, I was searching today on these here Zilvia boards about the NA SR20DE and I saw in some post(which I can no longer find of course) that the S15 NA SR20DE puts out 200HP. Does anyone know anything else about the NA S15 engine? I know that is a broad question but I guess some of my initial questions are:

1- will it pass smog? It's not going to change my mind if it doesn't since I am already thinking that it does not pass smog.

2- I assume it is direct swap into S14? Would that be correct?

3- how is the aftermarket for it? Can I use parts for the S13/S14 SR20DET?

4- Since the S13 SR20DET puts out 205HP, wouldn't it be a "better" idea to get an NA that puts out almost as much?

5- Will I have to buy only S15 items or will I be able to use a tranny from a S13/S14 SR for example?

Any help is appreciated. Try to keep the flaming to a minimum, just trying to gather some information here. Oh and yes I DID SEARCH!

__________________

Annoying Eric

an s13 sr has that much hp at STOCK boost. I dont think you can use the s13/s14 tranny with the s15. But dont take my word for that....

XxJaPxOxNeEs23xX

wow 200 hp. i think id rather get na s15 too. i have stock ka and i can make the s15 na look like a stock ka no?

WILDACEX187

i believe they swap out the 6-speed trannies out of the s15 motors for s13 or s14 sr trannies.

__________________
SR POWA COUPE LUVVV!!!

KiDyNomiTe

build your KA, cheaper and if you blow it, they are a dime a dozen.

__________________
PROCEED
Grip Gambler

CKAMC

200 tuned... its acually 165 stock and yes thats the s15 sr20de... proof at this link... http://english.auto.vl.ru/catalog/21437/

de in a s14... not sure if the visual inspec will like that over there in socal. de's pass pretty easy *had one*. yeah it should bolt in easy since it doesnt have the 6speed manual *yeah look they come with 5 speeds*. i u want NA power then yes its a good motor... turbo... then take the DET and get a 5speed *6 needs alterations 2 work* im not too sure bout parts.. as far as i have seen for de's they go with anything... det's then the s15 has its own product designs from what i have seen. aftermarket is lookin great with a protoype r-tuned version maybe comming out by nismo. if u want NA then go for it... if u want DET then u need to do some more searchin cuz the s15 and *some pay argue* s14 arent best compared to the s13. best of luck man

__________________

SoCalSilvia

CKAMC- thanks for the info man, really helped. I was looking at it since it was a good alternative to going SR20DET and would probably be cheaper(right?). I probably wouldn't "build" it to the max or anything, just bolt-on's like exhaust, intake, header, etc... I've already done that to my KA and it hasn't done much(anything?) lol. I still will probably end up going DET with a S13 redtop, or maybe start looking into RB20DET. I've got much to learn, just trying to gather some info on the S15 NA SR20DE since I read that it was 200, guess that was incorrect, or rather not completely correct.

__________________

atom

Only Autech Silvia's have the 200HP N/A SR.

linkwpc

Just get the best: A S15 SR20DET! I got one and its great!

__________________
97 240SX! 10 Camaro SS (SOLD - 95 W/S15 SR20 6M tran)

nissantuner22

Autech S15's come with the big daddy N/A motor. One was for sale on ebay a few months ago, no one bought it. It went for about 600 bucks if I recall correctly. Had I known about it during the auction, I woulda picked it up. That motor in a S13, with a nice header, intake, and cams, would be very very quick.

__________________

Current Project: Operation: N/A SR: 93 Silvia Q SR20DE Engine with go fast goodies. ,
"Common problems 240sx's suffer from are curbs, trees, ditches, and other immovable objects."thx247

"on the tounge... there is no guardrails."- citizen

CKAMC

i wouldnt recommend the RB20... heck from what i have heard the aftermarket is small and isnt as worth it from what i have heard...even some of the j-ppl say they rather have a sr20 than a rb20... if u want rb then go RB25

also that 6speed s15 tranny i heard is weak stuff... i heard s15det with de tranny which is a 5 speed works out great

__________________

sepulchral

s15 na motor? is it cheap?

SoCalSilvia

I'm hoping it is cheaper than an S13 SR20DET. In his post above nissantuner22 said there was one going for $600 on ebay a few months ago.

__________________

CKAMC

i would think a s13 would be cheaper since its older unless u go with the blacktop *180sx* one which is the same but just... not as old as the red... i believe that anythin s15 is expensive since its the last and thus newest

__________________

linkwpc

The S15 Tranny is not that that weak.... Sure it may not be the best but its does not break so easy.

__________________
97 240SX! 10 Camaro SS (SOLD - 95 W/S15 SR20 6M tran)

slideways240

my 6speed has survived many a drag launch with a 2step holding boost at 10psi from the getgo. and it's a direct boltin into an s14.

proj240sx

you will fail visual instantly. unless you know someone dont be idiot and try. why is it "better" to have NA? that is all personal opinion and driving style. there is no "better" motor. they are both good, just depends on what YOU want. rb20 is garbage..my personal opinion. better off with a CA or SR.

side note i remembered: a friend of mine said it will need custom header to clear steering shaft. not sure if its a fact. research is key.

__________________

90 RPS1345 hybrid thingy & 01 IS300

sciamop

4- Since the S13 SR20DET puts out 205HP, wouldn't it be a "better" idea to get an NA that puts out almost as much?

<sarcasm>Yes. Definitely.

Turbochargers are stupid, dangerous and overrated. </sarcasm>

Todd
93 Coupe

meatish

'Is it smog legal'
Im so sick of hearing this shit.

__________________
Mr. Pibb + Red Vines = CRAZY DELICIOUS
-Dont wanna be a drifter no more..
Im not a drifter i just crash a lot.

SoCalSilvia

I guess you didn't read the rest of what I wrote. I already said I thought it was NOT going to be smog legal, I just wanted to confirm.

sciamop- I'm not saying that turbochargers are bad, we all know turbo>NA, but I was saying stock to stock, if the NA is just as fast, and assuming it is cheaper since it is NA and not DET, wouldn't it be a better buy for the money?

__________________

meatish

Shut up your mom is fat.

__________________
Mr. Pibb + Red Vines = CRAZY DELICIOUS
-Dont wanna be a drifter no more..
Im not a drifter i just crash a lot.

autobahNESSA

hahaha

just thought it was kinda funny, such an off the wall comment

SoCalSilvia

oooh... the big boy mom jokes... you're hardcore guy

__________________

WILDACEX187

does ur speedo work? wat kind of mod did u do to the driveshaft for it to work?

__________________
SR POWA COUPE LUVVV!!!

meatish

No you are hardcore. You are the one with the s-tech's.
Staying on topic, have you even sourced out an S15 engine of any configuration?
Have you priced them?
You cannot rationalize the price when more common, early model engines are much cheaper.
PS bite my weiner. bite it.

__________________
Mr. Pibb + Red Vines = CRAZY DELICIOUS
-Dont wanna be a drifter no more..
Im not a drifter i just crash a lot.

slideways240

my speedo works fine(s14 USDM) i used the S15 driveshaft/differential/speed sensor, with a dakota digital SGI-5.

SoCalSilvia

hmm... actually, I have found an S15 NA motor, not that I need to show you or anyone else. This was a simple post to gather information, but obviously you have no life and nothing of substance to add to this thread, so why post? And yes, I do have Tein S-Tech's currently on my car. Sorry not everyone on here has $700+ to throw into their suspension within the first few months of owning there car; college does cost money Oh look, I did just buy coilovers recently, sorry my signature needs updating so I can keep YOU informed about what is going on with MY car.

Oh no... "bite my weiner"... damn... is there any comeback to that one? I really think you "owned me" there bro. I guess I better start watching cartoon network so I can keep up with your witty comebacks. Anyways, I'm done with you.

If anyone else would like to add anything they know about the S15 NA SR, it would be appreciated.

__________________

AKADriver

Rare autech piece. The whole car was basically set up like an S15 turbo, with the stiffer suspension, 6 speed, etc. But it had a 4.08:1 axle ratio. The engine had higher compression, different cams, a nice looking shiny header, different ECU.

It'd be easier and faster to build a 200hp N/A KA. Especially an S14 KA with no secondary butterflies. Just cams, intake, exhaust, ECU is good for 160whp. A bigger throttle body and a header should take it up to 170whp. That's getting close to 200 crank hp... and a lot more torque than a 2.0L.

SoCalSilvia

AKADriver- thanks, that was some helpful information. I've got intake, exhaust, header, but I have no idea where to find cams, bigger throttle body, and ECU. Other than PDM cams, are there any others out there on the market? And when you say ECU, do you just mean tuning(SAFC, etc...)? Thanks for your help.

__________________

RBS14

cams: Gude and JWT are another 2 manufacturers of streetable cams.

some people call piggybacks tuning, and it is, in a very basic way. If you want to really tune, you need ignition control which comes with a standalone.

Nobody makes a bigger throttle body kit, but with some fab work, a Q45 tb could work. If you are staying with stock intake mani, you will want to extrude hone the intake mani at the same time that you put the bigger tb on.

__________________