SR or KA

[180sx2nr8u]

this may be a stupid question, but is driftin with the KA motor stupid? is the power the only thing, or does the motor have characteristics that might affect drifting? any help on this would be appreciated.

[Rooney]

Driftings not about the motor. I know Stan-Bo drifts his 240 basically stock. Stock KA and everything.

[hachiroku-fc3s]

There is nothing wrong with the KA. It is actually prefered by many ppl that have any working knowledge of the two. JDMers have set out to elevate the SR. It is by no means required. If you have any specific questions, just ask. Be glad to help.

what's an SR?

[balmo]

ka's mid-tourge is good enough to break traction.

[markeese180sx]

Originally posted by Nightwalker
what's an SR?

SR...its short for SiR...a super powerful new version of the vtec engine glad to help

[Rooney]

It was supposed to be a joke.

[sobe]

hell, i know im laughing

[markeese180sx]

[Scott]

Nothin wrong with the ka. unless you wanna be all JDM and turbo your ride, or can actually benefit from putting in a sr20 or any other motor for that matter. True the SR is a "better" motor. Nothin wrong with the KA though.

[drift_monkee]

KA's are nice when that dont have like elevendy thousand miles on them

[hachiroku-fc3s]

Originally posted by Scott
True the SR is a "better" motor.

Wanna defend that position?

[180sx2nr8u]

Originally posted by hachiroku-fc3s
Wanna defend that position?

The SR is better, but it all depends on how you look at it. I'm just wondering if its more trouble than its worth to put it in...?

[SR_power19]

People who say the KA is better than the SR can't afford it lol.Which includes me right now until i get it swapped out, so until then GO KA! hehe...

[hachiroku-fc3s]

People that prefer other motors to the SR are people that know about the SR. Most of the people that prefer the SR are jdmers and ppl that look at cars that Veilside turns out. Doesnt make it a good engine and 180sx2n....blah blah blah(you have a long sn)...you didnt defend your position, you just agreed with the other guy. Somebody tell me why the SR is a better engine since you all seem to think so.

[SR_power19]

Because it is an ALUMINUM(light) engine that can hold upwards of 500(i have heard of even 600) on stock internals.That says alot, it was made for turboes(can hold up to 25-30 psi) while the ka's internals were not designed for turboes.

you have heard, you have not seen or done

each engine merits its own advantages. You can sit here and argue these points forever.

(it's been done a thousand times on boards much more informed and educated than this one, so let's not)

a 400hp+ at the wheel SR is running on the ragged edge. What you have been "hearing" are dyno queens. Until I see a 400hp sr with stock internals that is daily driven and ocassionally driven hard, I still won't be believing much.

I'm not saying the KA is capable of more.

For myself, and others who live in California, I suggest you stay with a KA. ...unless you have the smog hookup, and if you ever get pulled over, you best be a fine female willing to give the cop a BJ, because your as$ will be grass. (check the more informed boards about californians who have been pulled over and had their hood popped)

in conclusion, if you like more torque go KA.
if you don't go SR

I can drift the hell out of my KA I have stock internals, greddy header, injen intake w/CAE ( removed for big brother reasons ), ACT Clutch, Fidenza 8 lb. F/W, and a custom exhaust w/a 5Zigen muffer. You can drift the f u c k out of a 240 w/ a KA!!!

I RECOMMEND A FLYWEEL AND CLUTCH BY ALL MEANS, IT REALLY INLEASHES THE CAR!!

[GRiDRaceTech]

If you're in California, stick with the KA. (And I hope you have a KA24DE)
Worthwhile upgrades are as follows:
-JWT cams $560 (not lumpy, so smog guys can't tell it's there)
-JWT ECU $595 (not visible, so smog guys can't tell it's there)
-UR aluminum pulleys $400 (doesn't matter)
-l/w flywheel $430 (doesn't matter)
-HotShot header $270 (I have no idea, but if you paint it black and put some random grime on it, it'll look stock)
-your choice of exhaust $250-1300 (some pass, but you can always just bolt it on after smog if it's not legal)
-HKS Super Mega flow intake $138 (CARB-exempt)
More extreme: Cobra MAF and matching ECU from JWT, bigger injectors, Nismo fuel pressure regulator, turbo.
In other words, be prepared to put down $3000 on your drivetrain NA, but it'll be rock solid reliable and smog-legal provided you run a cat. ($99) I'm not a huge fan of turbos, so I'll let others comment on that.

[hachiroku-fc3s]

Wow, I kinda thought I was the only KA supporter on the board.

"(it's been done a thousand times on boards much more informed and educated than this one, so let's not)" Oh so good a suggestion except I kinda wanted to give some insight to the ones who "have not seen or done".

SR, you really shouldnt have posted that. "Because it is an ALUMINUM(light) engine that can hold upwards of 500(i have heard of even 600) on stock internals.That says alot, it was made for turboes(can hold up to 25-30 psi) while the ka's internals were not designed for turboes." One, no it cant hold or sustain such numbers on a bottom end. It can make em, not sustain em. Those are records. The current is 601 corrected hp. And that is with different components from differenct SRs. You do realize that the KA is a nissan engine, built the same time as the CA, RB, SR, and VG. Nissan knows how to build turboed engines and is famous for its parts sharing amont cars. The KA was built for boost. It came stock with a 9.5 compression ratio but that is easily fixed with a set of pistons (compare that to the price of a new engine) and that is the only reason to keep boost at a minimal. This concludes your introduction, if you would like to further your education, I would be happy to go into further detail, I just figured Id post an opening argument during my lunch break.

[SR_power19]

First, the KA has a 9.6:1 compression so

Second, yes i understand the KA is a formidable engine.For about 3,000 you have a KA-T with anywhere from 220-250rwhp and with 3,000 you may have a sr with 190-215rwhp(prices on sr's vary a great deal so it really depends if you have money for mods left.)


Third, i believe a signal auto s15 is running or was running over 600rwhp, so 601 is not the record, however im not sure if they were on a stock bottom end so thats a mute point The KA is a solid engine for -320 hp, the SR has more potential and much better aftermarket support, not to mention the SR is more rev happy

Oh as for "hearing" people put down big numbers on SR's.Enjuku racing pulled 544rwhp w/stock internals on the red top SR.

http://www.enjukuracing.com/ken/racecar/544.jpg

And Scott from secret services runs(dunno if he still does) 539rwhp daily.

[hachiroku-fc3s]

The current record for a "stock bottom end" SR, is 601.83 I think. Not sure about those decimal places and that is corrected hp. Also I guess you were trying to disprove me by quoting a compression figure that was .1 away from what was reported from Nissan and what I typed above. Maybe you have had your KA personally compression tested. If so, an aftermarket head gasket would account for the difference. Either way, I dont really car about the .1 diff. Its not much of a factor. As far as those prices go, you quoted a price equivalent of a greddy turbo kit and a SR clip. I could turbo a KA to 250hp for a grand. Even if I bought the exhaust manifold, that would only be $300. I dont know how much experience you have with building engines, but there is a point in which an aftermarket doesnt do anything. Most top end mods are services(tuning) not products. And the SR doesnt have an aftermarket superior to the KA in the US anyway. The Sr does rev faster than the KA but if you want to go into head design of the two, I would love to go that direction. Glad this isnt much of an argument and I like your use of smilies. But you will never win. HAHAHAHAha.

[SR_power19]

Please explain how you would get 250rwhp out of a turbo KA for only 1k.Heres how i see it:

(taken from another forum)

Ross Forged Pistons and total seal rings set at 9:1--- $590.00


Rebuild gasket kit from nissan to to do the rebuild --- $132.00

Custom Build turbo manifold for a T28 ball bearing from a S15 Silvia SR20DET $250 - $350

Silvia 370cc injectors from Ebay $100.00


High pressure fuel pump from ebay $100.00

T28 turbo from an S15 Silvia-$300.00-500

Stock Sidemount intercooler from an S13 180sx/Silvia will all piping intact including recirculator valve $100 - $250

Electronic Boost Controller and Boost Gauge $250 - $500

Misc. Parts and expenses $250.00+retuned ECU

That comes out to about $2772,Including small turbo and crappy intercooler.What would you do different?

P.S. You seem to be pretty knowledgeable, thats cool, not many on this board are lol, i hope to learn things from you in the future.

Oh and smilies own

[180sx2nr8u]

yeah someone told me that the KA is a truck motor, so its low end torque is very high, but its very heavy (coming back to an earlier stated point), and the SR is alot lighter.

Now for a new question (just to break up you to from fighting):

how do i get around emissions if i put in an SR motor??

[Frostbyte]

Originally posted by Scott
Nothin wrong with the ka. unless you wanna be all JDM and turbo your ride, or can actually benefit from putting in a sr20 or any other motor for that matter. True the SR is a "better" motor. Nothin wrong with the KA though.

Hell I got the sr only because I have the KA24e and it has some bad rings and I had money to spare so I bought the swap.