displacement

ok upon picking up my superstreet mag this month i see a whole section dedicated to the 240... my luck... and ne one who read my previous thread will remember i was trying to get an idea of wat i wanted to do with my 96 240. basically i need an engine swap for my 120k mile ka24. so as i read the magazine i found a few interesting things. the one that stuck out to me was the displacement kits to get the sr20 to 2.2 or 2.4
kinda steep prices but those are the prices listed in the magazine so i was wondering if ne one knew about that... btw i set my heart on the s14 sr20 and even tho i want a daily driver... if i could afford to increase the displacement that would b raw... one of the things that always comes up in a ka24deT vs sr20det convo is that the increased displacent helps loads and that all u got to do pretty much is slap a big turbo after u rebuild. the ka is a nissan truck engine from wat i read and produces nice power at low range, hence that throaty engine sound. wat would that sr20 sound like if it was an sr24det and wat kind of potential would it have?

Its kind of a hypothetical question but it would probably sound like a KA. I bought that issue too. I forget exactly what the specs on the kit were but the KA gets its sound from the long stroke it has. If you did the same to the SR, then you would get a similar sound. For the price you would spend boring and stroking the SR, you could have a ten second or maybe even faster KA or RB. And the KA produces nice power up to around 55-6000 RPMs and is limited by the cams it comes with.

Is that the issue with the Signal 350SR on the cover?

it is... now thats a serious car. i havent heard of ne one who is looking for big power out of an sr20 to increase the displacement, assuming $$ is not an issue, is it a bad idea? and how much are we talking about when we say 2.0 to 2.4?

Rods, pistons and crank will be around 4000$ I guess, machining will cost a pretty penny, I'm thinking, not worth it, but if money isn't an issue, go ahead!

Sleeving the block is pretty expensive. If you do this, make sure you get everything done. O-ring, check the rods and crank for balance(they should already be balanced), deck, check sketch pattern on the cylinder walls, blueprint, and so on. There was an entire section on machine shops in Dsport a little while ago.

the ka is a nissan truck engine from wat i read

the ka is a car engine.......then it was put into a truck

The KA is an internal combusion engine. It is torque biased, but so is a viper engine.

*highfive* fanatic....i just get tired of seeing ppl "put down" the KA because "its a truck engine" they got from watching 1 episode of that SPEED show or read SS and bash the KA

Its the JDM crew's way of trying to make you feel stupid because you didn't spend $3000 on a JDM engine.

2.0 to 2.4 seems quite hefty.. i've heard of a 0.25ish increase in displacement but never 0.4. would there actually be enough room for 0.4 increase in the sr block??

im pretty shure i read somewhere the ka was built with the idea of putting it in a truck... not a car. but wuteva. im not saying i want to do this im just saying i saw 3 stroker kits for it in the mag we were talking about rangin from 4k to 10k. and they were .2 and .4, the apexi .2 was 10k (lmao) and i was wondering if this was done at all and if so why no one talks about it. seems like if u got some cash to spend, increasing the displacement on the sr would give someone serious braggin right to begin with and never lose an sr vs ka convo on his block, oh ya and also make the sr a serious powerhouse. why cant i find a few g's lying around :(

i've only seen stroker kits to make the sr a 2.2L

also i think its kind of funny that in the US nissan used the KA in so many cars, if i'm not mistaken i believe it was put in the 240sx, altima, frontier, xterra

if you want bragging rights and have enough money to turn a SR20 to 2.4L why not go for something more extreme, like what one shop did and give a 240sx the 2jz [supra motor] and produce an extreme amount of power, i believe it was in the neighborhood of 1200+ rwhp

ya it would be more for the 1200whp but you get the picture

the reason why you don't find too many people talking about it is because instead of spending $5000 on an sr20 and then minimum $4000 on a stroker kit, people will buy the rb25 for half of that total price.. so unless you feel like spending that extra money, do the rb or just boost your ka.. but then, it depends on what kind of power you want and what kind of driving you wanna do.. and as i see, you want something for everyday driving, so build for that.. which will most likely be a decision between ka-t or sr20

Is that the issue with the Signal 350SR on the cover?

TeH Ghey :gay: that car was supposed to have a 7-800HP VQ in it but I guess they couldnt do it.

TOP SECRET > SIGNAL although I suppose Top Secret couldnt do it with a VQ35 Either... at least they kept the VQ.


the one that stuck out to me was the displacement kits to get the sr20 to 2.4

Holy long stroke batman!

why even buy an SR if your gonna turn it into a KA?

TeH Ghey :gay: that car was supposed to have a 7-800HP VQ in it but I guess they couldnt do it.

TOP SECRET > SIGNAL although I suppose Top Secret couldnt do it with a VQ35 Either... at least they kept the VQ.

R.W. speaks the holy Gospel!!!

BTW, however much you increase displacement(percentage), you can expect that much power gain. +20%displacement=+20%power.

why even buy an SR if your gonna turn it into a KA?

Word :gay:

Why buy an SR if you already have a KA?

sr + stroker = $10,000
ka + boost = $4000

sr20det + stroker = ka-t

understand??

Wrong.... Sr + Stroker = Sr

An Sr Is Totally Different From A Ka Not Just In Displacement. It Has Better Flowing Heads, Better Cams, Better Valvetrain, Its Lighter, It Runs Slightly Cooler, And Has A Shitty Oiling System.

The Ka Is Actually The Dohc Version Of The Z24 Engine Which Is Based Off The L Series Motors. Those Were Designed For Cars, The Ka Was Originally In A Car, The Ka Was Most Common In Trucks At The Time Of The 240.

i heard the ka has a better flowing head......but in all honesty when you do a ka you rebuild it first...so you'll have aftermarket internals for the price of a stock sr...so in a sense the ka will have Better of everything you just said the sr has. catch my drift? atleast thats the way i see it. so all in all ka is like bush and sr is like kerry....bush wins!!!! least thats my vote.

imi not saying i want to do this... when someone posts about something it doesnt mean they are looking into doin that right off the bat. i have absolutely no intention of doin this. I just wanted to see wat was to b said about it. all that sheit is way to dam expensive.

im going with the sr as soon as some time opens up.. maybe afta christmas. during christmas is the busiest time for a graphic designer, aftawords its slow.

I'm Not Saying One Is Better Than The Other.... I Only Like The Sr For The Weight Savings And Thermal Effciency.

My Comments Were Directed Towards People Saying A Stroked Sr = A Kat.... Which Its Not, There Are Tons Of Different Things About Them. The Early Sr Heads Flow Alot Better Than The Later Ones Which Suck Compared To The Kade Heads.

When People Turbo The Ka They Totally Build Up The Head? I Know Most People Beef Up The Bottom End But I Highly Doubt People Build Up The Head To Out Flow The Srs And Add Better Valvetrains For 8000rpm Redlines And Such.

I don't like the SR's valvetrain. The only thing you need to replace on the bottom end of a KA is the pistons, so no it doesn't cost as much as a SR. No matter how you look at it, it still comes down to preferance.

i heard the ka has a better flowing head......but in all honesty when you do a ka you rebuild it first...so you'll have aftermarket internals for the price of a stock sr...so in a sense the ka will have Better of everything you just said the sr has. catch my drift? atleast thats the way i see it. so all in all ka is like bush and sr is like kerry....bush wins!!!! least thats my vote.

It's like both the SR and KA are engines, choose your favorite. Bush is cow manure and Kerry is horse manure, but hey are both manure, choose your favorite.

one of the things i agree with most on this entire thread is logik's last remark... picking the lesser of 2 evils always leaves a bitter taste in ur mouth.

so afta the last few threads ive read and replied to my new favorite 240 is the super ricer with a blown probe engine and afta burners... comon u know its ur new favorite too.

comon u know its ur new favorite too.

Damn straight.

lol logik i see your point...it reminds me of the south park where they had to vote between a giant douche and a turd sandwich for there mascot....whahaha funny shit. The point was though that its always a vote between a douche and a terd so pick your fav. point taken and therefore i vote KA=cheaper in my book.

lol logik i see your point...it reminds me of the south park where they had to vote between a giant douche and a turd sandwich for there mascot....whahaha funny shit. The point was though that its always a vote between a douche and a terd so pick your fav. point taken and therefore i vote KA=cheaper in my book.

Exactly, it all comes down to your personal opinion. (Except that here we are talking 2 good engines, with politicians, they all suck, so it's the lesser of 2 sucks)

yea thats all us nissan peeps have to do is fight over badass engines.....makes you feel good though lol. All in all no matter what engine you pick im pretty sure any of them would satisfy anyone.

.......... you guys can call KA-T truck engines. i admit its not much stock, but boy does that engine have potential. go to ka-t.org

rick recently made 533whp on his KA-T running 23psi, and 330 whp running only 12 psi.

he would've made over 600whp if it wasn't for his slipping clutch. with that power, it would put him in the low 10's. faster then any SR powered 240 have ever gone.

also hp is hp, a 600whp KA will have a equal powerband to a 600whp SR. the KA will have better low end power, but less revs. however the SR will need to take alittle to get to the meaty part of the powerband, but it can rev longer. so in theory, they have the same powerband. however most people with SR's don't get that kind of HP on the 2.0 block. they need that expensive ass stroker kit. why spend all that money when your still goin to .2 more liters of displacement? also like i said, power is power. the main difference will be the personality of the engine. i would not spend 10K extra for just a engine with different personality.

also the KA have a better valve train, it doesn't use rocker arms. it has less parastic drag. its valve train in theory can support more revs then a SR. the main limiting factor is the long stroke that the KA has. when your up the displacement of the SR by adding a stroker kit, your basically reducing your ability to rev high. which is why it is almost like

SR+ stroker kit = KA-T

to each his own. if i had the money to do all that, i wouldn't spend it on a SR.

.......... you guys can call KA-T truck engines. i admit its not much stock, but boy does that engine have potential. go to ka-t.org

Word. And yes KA-Ts can run 13.3@110 on the stock internals.

SR+ stroker kit = KA-T

Plus a JDMTYTE emblem.

if i had the money to do all that, i wouldn't spend it on a SR.

Who would??:gay:

www.phatka-t.com they ran 11 sec on stock internals.

if i had the money to do all that, i wouldn't spend it on a SR.

You're right, I'd spend it on hookers. :icon16:

Personally I'd rather get an rb25. Those things purrrrrr. :smokin:

www.phatka-t.com they ran 11 sec on stock internals.

Yes they did. It was tuned with a AEM EMS. Super expensive but super good. Don't count on doing this with a S-AFC or equvalent and definately not with a FMU.lol