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Author Topic: Ka24 V.s Ca18det  (Read 5413 times)

Offline jeffwins24

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Ka24 V.s Ca18det
« on: 09:38:05 PM / 30-Aug-08 »
Just wondering  

okay right away putting hp and torque aside which one has the better stats? as in head flow, intake flow, reliability, able to handle stress etc etc.

function over power

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Offline seishuku

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Ka24 V.s Ca18det
« Reply #1 on: 09:57:38 PM / 30-Aug-08 »
I would think the KA would flow more, considering the displacement, but then again, it is an American engine.

Maybe the KA has a little stronger bottom end as well, though rod strength might be close to the same since the KA's stroke is much longer.

Reliability? Well, you're comparing a turbo to an NA engine, unless you mean a turbocharged KA.
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Offline Jackalope

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Ka24 V.s Ca18det
« Reply #2 on: 10:25:13 PM / 30-Aug-08 »
not sure if he meant n/a or turbo.
but if both were turbo what do you think would be more reliable

(i'm most likely going ka cause a friend is giving me one ;P )

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Offline seishuku

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Ka24 V.s Ca18det
« Reply #3 on: 10:57:44 PM / 30-Aug-08 »
A turbo KA will always be less reliable than a CA18DET, but only because the KA isn't turbo from the factory. So you have to figure in the tuning aspect of the setup, which, depending on who did the work, could either be really nice and OEM reliable, or could die in a year or more.
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Offline Arro

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Ka24 V.s Ca18det
« Reply #4 on: 11:02:49 PM / 30-Aug-08 »
well the real question is how much each longblock can take... I think the CA18DET stock can take more than the KA24DE, but by how much more, I dunno... as I've mentioned before, people on KA-T.org have pushed the stock longblock to a bit past 275hp. I'm sure the CA18DET stock longblock has been pushed farther than that, but perhaps someone can verify that guess for us.
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i dont own a s12 at the moment but trying to acquire one to get rid of my s13 hatch
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Offline seishuku

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Ka24 V.s Ca18det
« Reply #5 on: 11:06:44 PM / 30-Aug-08 »
Didn't someone pump out 700+BHP on a stock block?
I know some people are running 400 on the stock block for years now, and never had any problems, though I recall they are running pro dyno tunes as well.
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Offline Garrett76zt

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Ka24 V.s Ca18det
« Reply #6 on: 11:31:07 PM / 30-Aug-08 »
I believe the record for a stock KA is over 500whp. Its all in the tuning. There are plenty or reliable 300-350whp setups out there using the same kind of supporting parts you'd need for a CA18det (turbo, fuel, etc.) You could build a 300whp daily KA setup for less than you can purchase a stock DET. Kinda seems like a no brainer to me but then again I already have a KA in my s12 haha. Ordered my turbo mani today actually. . .
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Offline brewster240

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Ka24 V.s Ca18det
« Reply #7 on: 11:39:21 PM / 30-Aug-08 »
Quote from: Garrett76zt
I believe the record for a stock KA is over 500whp. Its all in the tuning. There are plenty or reliable 300-350whp setups out there using the same kind of supporting parts you'd need for a CA18det (turbo, fuel, etc.) You could build a 300whp daily KA setup for less than you can purchase a stock DET. Kinda seems like a no brainer to me but then again I already have a KA in my s12 haha. Ordered my turbo mani today actually. . .


100 percent agree

Offline seishuku

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Ka24 V.s Ca18det
« Reply #8 on: 12:41:13 AM / 31-Aug-08 »
Quote from: Garrett76zt
I believe the record for a stock KA is over 500whp. Its all in the tuning. There are plenty or reliable 300-350whp setups out there using the same kind of supporting parts you'd need for a CA18det (turbo, fuel, etc.) You could build a 300whp daily KA setup for less than you can purchase a stock DET. Kinda seems like a no brainer to me but then again I already have a KA in my s12 haha. Ordered my turbo mani today actually. . .
Yup yup!

Gotta see that when you get it done!
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Offline Garrett76zt

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Ka24 V.s Ca18det
« Reply #9 on: 11:53:14 PM / 01-Sep-08 »
Quote from: seishuku
Yup yup!

Gotta see that when you get it done!

For sure man, I have a t28 from a rb26dett, SR 370's, Volvo IC, SSautochrome manifold, just going for a basic 220-250whp setup.
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Offline seishuku

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Ka24 V.s Ca18det
« Reply #10 on: 04:04:15 PM / 03-Sep-08 »
I gotta get a T28  I'm gonna kill this poor T25 one of these days.
Maybe a GT28RS, I donno.

I gotta get a better MAFS too, I'm already past the limits of my stock one.
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Offline Xano

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Ka24 V.s Ca18det
« Reply #11 on: 12:24:47 AM / 04-Sep-08 »
Quote from: seishuku
I gotta get a T28  I'm gonna kill this poor T25 one of these days.
Maybe a GT28RS, I donno.

I gotta get a better MAFS too, I'm already past the limits of my stock one.
haha, get the GT28RS before the meet in 9 days, and get it on there =P We can have some REAL fun then.
~xano


Offline seishuku

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Ka24 V.s Ca18det
« Reply #12 on: 04:27:22 PM / 04-Sep-08 »
Oh I wish... That would be awesome! I don't think the tires would hold the car anymore, would have to get something in the 9 to 10.5" wide range.

Then again, I break loose as it is, so... Yeah.
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Offline NY200sx

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Ka24 V.s Ca18det
« Reply #13 on: 05:00:57 PM / 04-Sep-08 »
hmmm... this post got me thinking, i got a free ka24, was going to do that swap. then i wanted a ca18det b/c well..i forgot why i think it was something to do with looks and it sits where the stock shifter is bla bla. i was going to sell my ka for like 30$ an a sub haha. now i might just keep it and ask you guys a ton of stuff. i only want like 250-300 hp anyway. THANKs!

Offline Arro

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Ka24 V.s Ca18det
« Reply #14 on: 05:46:37 PM / 04-Sep-08 »
Quote from: NY200sx
then i wanted a ca18det b/c well..i forgot why i think it was something to do with looks and it sits where the stock shifter is bla bla.

No it doesn't. If you use the trans that is meant to go with the CA18DET, then you will have to still cut your trans tunnel and make a custom mount, neither which is a big deal.

So the only real difference in the KA is it's cheaper and starts off with more power. And parts availability. Wow I sound like a broken record about this subject lol
-Jason Arro


'85 Nissan 200SX (KA24DE)
formerly,
'85 Nissan Silvia RS-X - FJ20 w/ dual Weber carbs
'84 Nissan 200SX Turbo
'85 Nissan 200SX Turbo
Drive it like you stole it, and work on it like you married it - self quote
Quote from: ka-t.org
Hella flush and all associates should be gunned down for brainwashing people into thinking a 225 and lots of camber is proper wheel fitment. THAT IS EASY, anyone can camber a skinny as tire till it dosnt rub. Now fitting an 11 with a 315 on stock fender with reasonable camber, that is fitment. And looks, and performs better than both.
i dont own a s12 at the moment but trying to acquire one to get rid of my s13 hatch
Quote from: SHOUTBOX
[27:54] zastaba: I had a friend touch the contacts on his distributer once
[28:04] zastaba: He did the super jumping up and down pain dance

Offline NY200sx

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Ka24 V.s Ca18det
« Reply #15 on: 06:20:01 PM / 04-Sep-08 »
lol sorry arro, guess im going to keep my ka.. just need a cluch set up! haha