ditching SR for KA

[s13dan]

well im thinking about ditching my redtop for a KA24de... i only have had the KA24e but it is easy to work on and cheap too... i imagine the DE is the same way.. im tired of trying to find parts for my SR and it cost to much to.. if i ditch my mostly stock SR i think i will go all motor KA ... raise compression, headwork and a lot of suspesion... any thoughts??

[TokyoNights]

thats what I did,,fuck sr ahahha. Nah I will go back though :mepoke:

[Pacman]

Never thought I'd hear that, ever. Why would you want to raise the compression?

[final act]

damn you like trade me your sr for my ka,hahaha :hitit:

[Nismo240SX]

well, thats a common problem with the sr. i'm going ca18det because most of the parts you can get from an autoparts store simply because of pulsar, which had the ca18de. heres more info...

http://www.zilvia.net/f/showthread.php?t=66226

[old_s13]

a well maintained KA is better than a poorly maintained SR.. thats for sure.

personally, the only downside i've found with the SR is that it doesnt really perform so well in hot weather. when driven hard (high rpms for long period of time) i notice the temps climb and well, its just a bit of a pain in the ass... but this is just the nature of forced induction. i really miss how NA could just be beaten on relentlessly without worry.. so simple and easy to own/maintain.

[s13dan]

well IF i do get rid of my SR i will get a KA24de and stroke it, port and polish port intake manifold, oil cooler ext ALL MOTOR.. dont know why but i just like all motor cars..so it wont be slower than my stock sr hi 13s but if the starter craps out i can get one that day not in 2 weeks... i live in southern missouri.. parts are impossible to find i think im the only SR for 400 miles...

[raging panda]

unless you have some sort of custom crank, you cant stroke the KA motor, but you can bore it out a little. Up the compression w/ stock sohc pistons, some cams, p&p, intake, exhaust and you have around 180whp from what some guys have reported on nico forums. Around what a stock SR should make to the wheels w/ 15% drivetrain loss.

[nightwalker]

NA cars are super nice on mountain roads. Turbo cars need to be driven really hard, and in much higher RPMs to stay in power, or it gets twitchy. I also love the fact that I can beat on my KA like crazy, and still just drive it home like nothing happened.

But I'm sure if you have the money, a SR is not a problem.

Can't beat going to pick-n-pull and picking up parts for cheap-o though.

[ghostuss]

also no law officer is gonna jump on u for having an illegal motor in that car. Beat that.

[420sx]

well im thinking about ditching my redtop for a KA24de... i only have had the KA24e but it is easy to work on and cheap too... i imagine the DE is the same way.. im tired of trying to find parts for my SR and it cost to much to.. if i ditch my mostly stock SR i think i will go all motor KA ... raise compression, headwork and a lot of suspesion... any thoughts??


wow are u really loaded or something? sounds like u have fuck load of money for all this :confused:

[TheSnail]

Go rb. HC ka you will lose the reliability that you once saw with your old ka. Rb is the way to go !

[SilviaDriver]

he is already having trouble finding parts for SR, so y would he want to make it harder for himself by getting an RB???

ive thought of a all motor KA. ITB n all that craps. but i realize not many people actually can make it pass 200rwhp on the KA. so ive decided to turbo it.

[urbanimpakt]

well IF i do get rid of my SR i will get a KA24de and stroke it, port and polish port intake manifold, oil cooler ext ALL MOTOR.. dont know why but i just like all motor cars..so it wont be slower than my stock sr hi 13s but if the starter craps out i can get one that day not in 2 weeks... i live in southern missouri.. parts are impossible to find i think im the only SR for 400 miles...


I say read some of DeviousKA's stuff (I think thats the name on the board) I personally found his NA information substantial and if my car was in modifing condition useful.

Also think about swapping bottom ends so you can have a more balanced bottem end and in turn up the rev's. Look into custom ITB's because as far as I know there arent any for the dohc motor. Something else for you to know from what I've read fron devious's post and my own research the Mazada 2600 (I think maybe 2200) pistons raise the compression in the SOHC so they would do more in the dohc since the the sohc pistions raise the compression. (!?)

Last I heard Devious was working on a kit for this but since I havent seen him post in a while and dont know if he fell out of the 240 world your best bet if your curious is 2 PM him or search around. I stopped looking once I realize I hadda put my sohc back in the driveway.

[Andrew Bohan]

i had '90 pistons in my dohc, and that raised compression to 11.2:1. the car was considerably faster than stock. i never got a chance to dyno it or tune it though, cuz it only lasted 300 miles. :)
'89 pistons will give you 11.7:1, which is too much for pump gas, imo.

[nightwalker]

hahaha! You already killed the project motor?

[TheSnail]

he is already having trouble finding parts for SR, so y would he want to make it harder for himself by getting an RB???

ive thought of a all motor KA. ITB n all that craps. but i realize not many people actually can make it pass 200rwhp on the KA. so ive decided to turbo it.


I just dont understand what scarce parts you guys are talking about. Out of many years of doing sr,ca rb swaps. I have NEVER came across a problem where I could not go to the store down the road and order the part. And if they did not have the part I would order it , and have it within a 3-10days. Name the parts off of a rb that people have trouble finding?

[Andrew Bohan]

yep. here's the story (http://guernsey.globat.com/~mountainracer.com/tunetech/ka_swap/howitruns.html)

[elevator]

This is a very sad thread. A very sad thread indeed.

[Y3llowS14]

Shit...coil packs from Series II RB25DET. Thats what holding me back for like 2 weeks now.

[TheSnail]

Shit...coil packs from Series II RB25DET. Thats what holding me back for like 2 weeks now.

I finished building another rb20 car today, I cranked it up, and one of the coil packs were gone. I have a Ca18 laying around in my garage so I replaced the bad rb20 coil pack with one of the ca's coil packs, . It is the exact same.

[Y3llowS14]

I finished building another rb20 car today, I cranked it up, and one of the coil packs were gone. I have a Ca18 laying around in my garage so I replaced the bad rb20 coil pack with one of the ca's coil packs, . It is the exact same.

The Series II RB25DET coilpacks are different beast. Its has built in ignitor. Whereas in Rb25DEt Series I, you can use the the 300zx. Which sucks for me.

[old_s13]

>also no law officer is gonna jump on u for having an illegal motor in that car. Beat that.

not true, an all motor setup will SOUND different.. there's no way you can hide a built all motor car, from the idle to the sound of the exhaust.

besides, all this talk about NA motors.. why fuck with a bullshit as KA nissan motor? we all know the s2000 motor is one of the best ever made, might as well swap that fucker in and enjoy. no need for custom work besides trying to get it all to mount up. shit, considering all the custom motor work you'de put into a KA.. i'de spend that time just trying to mount a S2k motor and see if that would work.

- mike

[Kid Zelda]

personally, the only downside i've found with the SR is that it doesnt really perform so well in hot weather. when driven hard (high rpms for long period of time) i notice the temps climb and well, its just a bit of a pain in the ass..

You should swap out water pumps, I know you install a new one. Try an s14 sr pump, I have a spare you can test.

[s13dan]

well guys ill tell why im considering the KA.. First off i spent 7,000 gettinf my car running with my SR(MIDWEST). im not rich i got a 5k loan and had 1500 saved and my dad help out on the rest.. BUT everytime something goed wrong with it i got to order and wait, this is my only car...Clutch, had to order 13days i sat..belts constanly brake gone through 3 dunno why i have tried many different tensions. Now i need a starter and SR is really warm lil motor.. I run hi 13 with stock bost so its not really fast but i cant turn boost past 12-13 psi and still dosnt feel any faster.. so i have kinda lost faith in the SR MANY hours fucking with this engine and i had just as much fun as i did with my KA, but the KA was like a rock with 196K on it.. easy to fix cheap and easy to find parts for.. i want to have an autoX kinda car.. GREAT suspension and a motor that can take a beating.. if i can get lo 14 all motor with my KA i will be happy.. maybe ill go buy a KA, slowly build it and when finshed (prolly a few months) then ill sell the SR for suspension.. OR maybe the engine is CURSED jap thing and ill just have to kick its ass, cuz after all this time and money i want running right and strong..

[mellojoe]

Go KA, and just turbo it. For the same horsepower of the SR, you will have a much more usable powerband. A t3 turbo will give you nearly instant spool and still give you good power. Stepping up to a t3/t4 is what most KA-turbo guys use. Good power, decent effeciency, and an excellent match for the street or track (depending on trim, etc). Or, you could even go t4 for the drag strip.

Lots of options.

[MakotoS13]

okay here is my thought process on the matter.

suping up the KA will keep stock part availability as an advantage BUT how many stock parts are we keepin on turboed built KA's? if your clutch goes out and you're makin 400 hp i seriously doubt the local autozone is gonna meet your standards for flywheel grabbin goodness.

i still have NO idea what motor i'm putting in the car. i WANT to go N/A for sheer benefit of simplicity. less stuff to break means less stuff to watch and worry about.

so where the hell am i going to find a lightweight torquey N/A motor? hellifiknow...

[s13dan]

i want all motor KA because its cheap... i could use 90 pistons to raise the comp and i can get those dirt cheap and a S14 throttle body (junkyard), and i have heard u can use an exhaust cam for an intake cam for an upgrade... thats all junk yard stuff and i can get a KA for less than 700$ probably. unless someone can convience me that the SR isnt the most poorly designed engine ever made than fuck it... example, bout 2 mins ago i was in the garage trying to get my starter off... TOP BOLT IMPOSSIBLE!! ka starter will take 5 mins to get off..

[NismoDan]

SR20VE? :bigok:

[papershot]

are you the same guy that can't remove the oil filter, now the starter bolts? if thats why you think the sr is bad (besides parts availability), then i don't know....

[sciamop]

i want all motor KA because its cheap... i could use 90 pistons to raise the comp and i can get those dirt cheap and a S14 throttle body (junkyard), and i have heard u can use an exhaust cam for an intake cam for an upgrade...thats all junk yard stuff and i can get a KA for less than 700$ probably.

Modifying your car is not a cheap hobby. Stamp or coin collecting is an affordable hobby that often has a financial return. As Andrew painstakingly illustrated, hi-comp KA has its fair share of problems...

unless someone can convience me that the SR isnt the most poorly designed engine ever made than fuck it

<convince>You just said that it runs high 13 sec 1/4 mile stock!</convince>

... example, bout 2 mins ago i was in the garage trying to get my starter off... TOP BOLT IMPOSSIBLE!! ka starter will take 5 mins to get off..

Boo hoo. The grass is always greener. I don't think you'll find much sympathy here.

Todd
93 Coupe
90 Coupe

[FRpilot]

not true, an all motor setup will SOUND different.. there's no way you can hide a built all motor car, from the idle to the sound of the exhaust.

besides, all this talk about NA motors.. why fuck with a bullshit as KA nissan motor? we all know the s2000 motor is one of the best ever made, might as well swap that fucker in and enjoy. no need for custom work besides trying to get it all to mount up. shit, considering all the custom motor work you'de put into a KA.. i'de spend that time just trying to mount a S2k motor and see if that would work.

- mike

the sound of all motor is awesome!! sounds mean and rough..

yea i agree. if you want na, go with honda. with vtec and honda technology for all motor they would be the best to deal with. but not everyone has a couple grand to mess with s2k motors. ka can be had for cheap, plus i the displacement gives it some umph in torque so it'll be fun. i wish i coulda drove mountain racers car before it took a crap. 185ish whp na sounds fun!!

[old_s13]

design wise i love the SR, i had fun taking it apart and putting it back together. plus, i think its an absolute breeze to work on. I never had a damn problem with the start bolts. like i said, the only issue i have is the large amounts of heat built up by forced induction cars, but thats about where it ends. i dont complain AT ALL once the boost kicks in and i'm thrusted into my seat, passing just about any car i want to pass on the road (well.. you know what i mean).

:)

[zeek]

boost is fun , NA power is fun , its not the same but both have good and bad points, KA motors are readily avaiable as are the parts for them, SR's come turbo , but you can turbo the ka , it all depends on what you want to do. The reason mountain racers motor failed is because he half assed it and didnt check the block to see if it was still within specs before spending all that time on it.

[wootwoot]

i have found s2000(f20c1 i think??) full front clips with 35 thousand miles on them for 4000 dollars. thats cheaper than an s15 clip by far and many s14 front clips are in that price range now. if i ever blow my sr up, iam seriously considering rebuilding it and selling it then buying that. i dream of formula one every night = (

[nightwalker]

sr20de NA w/ ITBs, hello?

[RBS14]

^^^^^

make that sr20ve w/ ITB's.

[AZiaNDriftRaceRX]

SR20VE? :bigok:

hmmm..sr20VE gets like 180hp all motor..
or how bout u jus make yur sr all motor?
its not so bad..u can find parts..like umm..
G20's NX2k SE-R's all use sr20 so finding parts isnt that extremely difficult

i hav my stock KA24DE..it pretty fun but with time..i will get bored..
jus like u r gettin bored of the sr
peace man!

[420sx]

did you really had to bring up this 4 months old pointless thread?